Operating Manual and Programming Reference Model DS360 Ultra Low Distortion Function Generator 1290-D Reamwood Avenue Sunnyvale, CA 94089 U.S.A. Phone: (408) 744-9040, Fax: (408) 744-9049 email: info@thinkSRS.com • www.thinkSRS.com Copyright © 1999, 2007, 2008, 2011, 2012, 2013 by SRS All Rights Reserved DS360 Ultra Low Distortion Function Generator Revision 2.
Certification Stanford Research Systems certifies that this product met its published specifications at the time of shipment. Stanford Research Systems further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology (NIST). Warranty This Stanford Research Systems product is warranted against defects in materials and workmanship for a period of one (1) year from the date of shipment.
i Safety and Preparation for Use WARNING! Dangerous voltages, capable of causing injury or death, are present in this instrument. Use extreme caution whenever the instrument is cover is removed. Do not remove the cover while the unit is plugged in to a live outlet. Caution This instrument may be damaged if operated with the LINE VOLTAGE SELECTOR set for the wrong AC line voltage, or if the wrong fuse is installed.
ii DS360 Ultra Low Distortion Function Generator
Table of Contents iii Table of Contents Safety and Preparation For Use Table of Contents Table of Figures Specifications Abridged Command List i iii v vii xi Chapter 1 Getting Started Front Panel Operation Continuous Waveforms Frequency Sweeps Tone Bursts 1-3 1-4 1-5 1-6 Chapter 2 Basics Introduction Front Panel Features Rear Panel Features 2-3 2-5 2-12 Chapter 3 Operation Power On Setting Functions Output Configuration Modify Functions Instrument Setup Troubleshooting 3-3 3-4 3-9 3-11 3-18 3-21 C
iv Table of Contents Burst Test DC Offset Test Output Impedance Test DS360 Performance Test Record 5-18 5-19 5-21 5-23 Chapter 6 Circuitry Overview Digital Board Description Analog Board Description Front Panel Description Programmable Resistor Board Description Digital Board Parts List Analog Board Parts List Front Panel Parts List Distortion Filter Parts List Miscellaneous and Chassis Parts List Digital Board Schematics Analog Board Schematics Front Panel Schematics Programmable Resistor Board Schemati
Table of Contents v Table of Figures Figure 2-1 Block Diagram Figure 2-2 Front Panel Figure 2-3 Keypad Figure 2-4 Outputs Figure 2-5 Indicators Figure 2-6 Display Figure 2-7 Rear Panel Figure 2-8 Rear Outputs 2-4 2-5 2-6 2-8 2-9 2-10 2-12 2-13 Figure 5-1 Distortion Filter 5-5 DS360 Ultra Low Distortion Function Generator
vi Contents DS360 Ultra Low Distortion Function Generator
Specifications vii Specifications Waveforms Sine Frequency 0.01 Hz to 200.000 kHz THD 1 VRMS Unbalanced, 2 VRMS Balanced Typical Maximum Frequency 0.01 Hz - 5.0 kHz < -110 dB -106 dB 5.0 kHz - 20.0 kHz < -104 dB -100 dB 20.0 kHz - 40.0 kHz < -100 dB -96 dB 40.0 kHz - 100.0 kHz < -90 dB -85 dB 100.0 kHz - 200.0 kHz < -76 dB -68 dB THD 10 VRMS Unbalanced, 20 VRMS Balanced Typical Maximum Frequency 0.01 Hz - 5.0 kHz < -109 dB -105 dB 5.0 kHz - 20.0 kHz < -103 dB -99 dB 20.0 kHz - 40.
viii Specifications Two-Tone Type Sine Frequency Square Frequency Square Resolution SFDR Sine-Sine, Sine-Square 0.01 Hz to 200.000 kHz 0.1 Hz to 5.0 kHz 2 digits >90 dB Sine or Square Burst ON Cycles Repetition Rate Triggering OFF Level OFF Resolution Max OFF Attenuation 1/2, 1 to 65534 cycles 1 to 65535 cycles Internal, External, Single, Externally Gated 0.0 % - 100.0 % (of ON Level) 0.
Specifications ix Noise Broadband Noise (for a 1 kHz sine wave into a high impedance). 40 Vpp - 1.26 Vpp <150 nV√Hz 1.26 Vpp - 126 mVpp <15 nV√Hz 126 mVpp - 12.6 mVpp <7.5 nV√Hz <12.6 mVpp <4 nV√Hz (Note: 4 nV√Hz is the measurement floor.) Offset Unbalanced Output Balanced Output Resolution Accuracy 0 - ± 7.4 VDC 0 - ± 10.0 VDC 0 - ± 20.
x Specifications General Computer Interface Size Weight Warranty GPIB and RS-232 standard. All instrument functions can be controlled over the interfaces. 17”W x 3.5”H x 16.25”D 17 lbs. One year parts and labor on any defects in material or workmanship.
Abridged Command List xi Abridged Command List Syntax Commands which have a question mark in parentheses (?) after the mnemonic may be queried. Commands that have a question mark without parentheses ‘? ‘ may only be queried. Commands without a question mark may not be queried. Optional parameters are enclosed by {}.
xii Abridged Command List Setup Control Commands *IDN? *RCL i *SAV i KEYS (?) i 4-17 4-17 4-17 4-17 Returns the DS360 device identification string. Recalls stored setting number i (0 to 9). Saves the current instrument setting as setting number i (1 to 9). Simulates the pressing of a front panel key. Status Reporting Commands *CLS *ESE (?) i *ESR? {i} *PSC (?) i *SRE (?) i *STB? {i} DENA (?) i STAT? {i} 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 Clears all status registers.
Getting Started 1-1 Chapter 1 Getting Started These examples are designed to acquaint the first time user with the DS360 Ultra Low Distortion Function Generator. The DS360 is a flexible generator, capable of producing continuous and modified waveforms of exceptionally low noise and distortion, and high frequency accuracy and resolution. The DS360 is also relatively easy to use; the following examples will lead you step-by-step through some typical uses.
1-2 Getting Started DS360 Ultra Low Distortion Function Generator
Getting Started 1-3 Front Panel Operation Parameters are set in the DS360 using the front panel keypad or the spin knob. Most parameters can be set directly from the keypad, although it is often more convenient to use the spin knob. Keys are referenced by brackets like this: [Key]. Keypad Use the up and down arrow keys [∧], [∨] to change between functions. To set a parameter, press the key with the desired parameter on it, ([FREQ] for example, to set the frequency). The current value will be displayed.
Getting Started 1-4 Continuous Waveforms This section discribes how to set up different continuous waveforms, like sinewaves, squarewave or noise. Connect the PLUS (+) output to an oscilloscope to observe the waveforms. 1. Turn the unit on while holding down [CLR]. Wait until the power-on tests are completed. 2. Press the [AMPL] key. Press [1][Vpp]. Press the [FREQ] key. Press [2][kHz]. When the power is turned on with the [CLR] key depressed, the unit returns to its default settings.
Getting Started 1-5 Frequency Sweeps This section discribes how to set up a linear or logarithmic frequency sweep. The DS360 can sweep the output frequency of sine and square waves over any range of allowable frequencies. There are no restrictions on minimum or maximum sweep span. The sweep rate may range from 0.1Hz (10 s) to 3.1kHz (0.32 ms). Sweeps can be triggered from the internal rate generator, an external rate, the front panel or over the computer interface.
1-6 Getting Started Tone Bursts This section discribes how to set up tone bursts. The DS360 can produce a tone burst of between 1 and 65534 cycles of sine or square waves with a repetition rate of between 1 and 65535 cycles. It can also produce bursts of noise. Bursts are generated by synchronously gating the output at zero crossings. The “on” level of a burst may be any allowable output voltage; the “off” level can be set between 0 and 100% of the “on” level in 0.1% increments.
Basics 2-1 Chapter 2 Basics In this Chapter Introduction 2-3 Traditional Function Generators DS360 Function Generator Front Panel Features Power Switch Reset Spin Knob Keypad Function Output Auxiliary Outputs Indicators Display Rear Panel Features Power Entry Module Auxiliary Outputs Computer Interfaces 2-3 2-3 2-5 2-5 2-5 2-5 2-6 2-8 2-8 2-9 2-11 2-12 2-12 2-13 2-13 DS360 Ultra Low Distortion Function Generator
2-2 Basics DS360 Ultra Low Distortion Function Generator
Basics 2-3 Introduction to Precision Waveform Synthesis The DS360 uses Direct Digital Synthesis and analog signal processing to generate an extremely pure sinewave with extraordinary frequency resolution and stability. Traditional function generators typically use one of several methods to generate sinewaves, each having one or more major limitations.
2-4 Basics DDS with Advanced Signal Processing A block diagram for the DS360 is shown in Figure 1. The DS360 utilizes direct digital synthesis to generate its basic waveform. A Motorola DSP56002 advanced 24 bit digital signal processor (DSP) acts as the phase accumulator and contains the internal waveform RAM. The DSP chip gives the DS360 exceptional flexibility for generation of different waveforms. A 32.
Basics 2-5 Front Panel Features OUTPUT SRS STANFORD RESEARCH SYSTEMS STATUS REM SRQ ACT MODEL DS360 ULTRA LOW DISTORTION FUNCTION GENERATOR BNC OUTPUT XLR OUTPUT IMPEDANCE FREQ AMPL EXT STR/C STP/BW REL 600 SINGLE TONE1 TONE 2 DEPTH HI Z GATE COUNT TRIGR RATE SYNC OUT INT FUNCTION Hz OFFSET 50 150 TRIG'D JACK OUTPUT TRIGGER ON OFF ERR OUTPUT FREQ + COMMON SECONDARY 40 VDC MAX.
2-6 Basics Keypad FUNCTION OUTPUT SECONDARY SWP/BURST UNBAL FREQ PINK NOISE 2-TONE LIN SWP LOG SWP BAL WHT NOISE BURST BW NOISE AMPL DIGITAL (SHIFT) OFFST ON/OFF TRIGR ENTRY SHIFT 50 150 MODIFY 600 HI Z ON/OFF SHIFT STO RCL CLR Vrms % TRIG SRC F STEP F STEP ENA DIG FREQ # BITS DIG MODE START CENTER DEPTH +/- 7 8 9 Vpp/DC dB GPIB LOCAL RS232 CAL SRQ DIG 0 DISP REL STOP BW BURST CNT .
Basics 2-7 change causes the currently displayed modify function to become invalid, the display will revert to the frequency [FREQ] display. Shift Key The [SHIFT] key is used to select functions printed above the keys. Press the [SHIFT] followed by the [function] key to select the desired function. When the shift key is pressed, the shift LED will light. This indicates that the keypad is in “shifted” mode. Pressing [SHIFT] a second time will deactivate shift mode.
2-8 Basics Outputs BNC OUTPUT XLR OUTPUT SYNC OUT JACK OUTPUT + + COMMON 40 VDC MAX. – – TTL TRIGGER/GATE IN GROUND TTL 40V max. Figure 2-4 Outputs Function Output The three output types are connected in parallel. There are three separate sets of output connectors: BNC, XLR and banana plugs. The different output signals are the positive output, negative output, common and chassis ground. The connectors are configured as listed below.
Basics 2-9 Indicators STATUS REM SRQ ACT OUTPUT IMPEDANCE TRIGGER ON 50 INT FREQ AMPL OFFSET OFF 150 EXT STR/C STP/BW REL 600 SINGLE TONE1 TONE 2 DEPTH TRIG'D HI Z GATE COUNT TRIGR RATE ERR Figure 2-5 Indicator LED’s Status LEDs These 4 LEDs indicate the DS360’s status. Status LEDs Name REM SRQ ACT ERR Function The DS360 is in GPIB remote status. The [>] cursor right key returns local control. The DS360 has requested service on the GPIB. Flashes for RS232 or GPIB activity.
2-10 Basics Parameter LEDs These LEDs indicate which parameter is currently displayed in the parameter display. Parameter LEDs Display LED FREQ AMPL OFFSET STARTF STOPF REL TONE1 TONE2 DEPTH COUNT TRIGR RATE Parameter Output Frequency Output Amplitude Output Offset Start Frequency for Sweeps Center Frequency for Bandwidth Limited Noise Stop Frequency for Sweeps Cutoff Frequency for Bandwidth Limited Noise Indicates that the amplitude display is in REL mode. Does not indicate a specific display.
Basics 2-11 Display dB Vp-p kHz dBV Hz VDC % dBm Vrms Figure 2-6 Display Parameter Display This 8 digit display shows the value of the currently displayed parameter. Error, status messages and configuration information may also appear on the display. Units LEDs These LEDs indicate the units of the displayed value. If no LED is lit the number displayed has no units or is seconds (for noise bursts).
2-12 Basics Rear Panel Features CHASSIS GROUND ! WARNING ! WARNING Verify that the LINE VOLTAGE SELECTOR card is set so the correct AC input voltage value is visible. For continued protection against fire hazard No user serviceable parts inside. Refer to user manual for safety notice. Service by qualified personnel only. USE CORRECT FUSE.
Basics 2-13 Outputs and Computer Interface Figure 2-8 Outputs & Computer Interfaces IEEE-488 Connector The 24 pin IEEE-488 connector allows a host computer to control the DS360 via the IEEE-488 (GPIB) instrument bus. The GPIB address of the unit is accessed by pressing [SHIFT][GPIB]. The [>] cursor right key is the instrument “local” key. Serial RS232 Connector The RS232 interface connector is configured as a DCE (transmit on pin 3, receive on pin 2).
2-14 Basics DS360 Ultra Low Distortion Function Generator
Operation 3-1 Chapter 3 Operation The following sections describe the operation of the DS360. The first section describes the basics of setting a function, including setting the function type, amplitude, frequency and offset. The second section explains setting the output configuration, including the output type and source impedance. The third section explains sweeps, bursts and bandwidth limited noise.
3-2 Operation Troubleshooting 3-21 GPIB Problems RS232 Problems Error Messages Operational Messages DS360 Ultra Low Distortion Function Generator 3-21 3-21 3-22 3-23
Operation 3-3 Power On Power On When power is first applied to the DS360 the unit will display its serial number and ROM version. Next the DS360 will initiate a series of self-tests of the internal circuitry and stored data. The test should take about 3 seconds and end with the message “TEST PASS”. If the self-test fails the DS360 will display an error message indicating the nature of the fault (see the TROUBLESHOOTING section at the end of this chapter for more details).
3-4 Operation Setting Functions The following section describes how to set the parameters for the basic functions of the DS360, including function type, frequency, amplitude, offset and function on/off. Function Type The DS360 output function type is selected using the [∧] up and [∨] down function arrow keys. Press the appropriate key until the desired function LED is lit. The peak-topeak amplitude will remain the same between different functions.
Operation 3-5 If the function is set to White Noise or Pink Noise the character of the noise is fixed, unless a modification function is active. The frequency is not adjustable and displays “noise”. The frequency of both Tone1 and Tone 2 may be set. For Sine-Sine 2-Tones, both frequencies are set the same as for normal sines, as is Tone1 for Sine-Square 2-Tones. The squarewave in sine-square two-tones has limited frequency range and resolution. It can be set from 0.1 Hz to 5.
3-6 Operation 0.001 ≤ AmpTone1 ≤ 1000 AmpTone2 If the amplitude of either Tone1 or Tone 2 is set outside of these limits, the unit will beep, display the message “Adj 2tA” (adjusting 2Tone Amplitude) and modify the other Tone amplitude so it is within the allowable range. Relative Amplitude Amplitude may be set in dB relative to a user defined value for all functions except 2Tone. To make the currently displayed value the relative value, press [REL].
Operation 3-7 Unbalanced 600 Ω Output Amplitude Ranges Function Sine Square White Noise # Pink Noise # 2-Tone * Vpp 5 µV - 20.00 V 5 µV - 20.00 V 5 µV - 20.00 V 5 µV - 20.00 V 5 µV - 20.00 V Vrms 2 µV - 7.071 V 3 µV - 10.00 V 1 µV - 2.857 V 1 µV - 2.500 V 2 µV - 7.071 V dBm -112 - 19.2 -112 - 19.2 -112 - 19.2 -112 - 19.2 -112 -19.2 dBV -115 - 17.0 -112 - 20.0 -125 - 7.0 -126 - 5.5 -115 - 17.
3-8 Operation * The rms, dBm and dBV values for White & Pink Noise are based on the total power in the output bandwidth (200 kHz) at a given peak-to-peak setting. Offset Press the [OFFST] key to display the DC offset. The DC offset range is limited by the amplitude, since |VAC PEAK| + |VDC| ≤ 20 V |Voffset| ≤ (200 * VAC PEAK). The offset has three digits of resolution, however the smallest increment is determined by the sum of the peak AC amplitude and the DC offset.
Operation 3-9 Output Configuration This section describes how to configure the output type and source impedance of the DS360. Output Type The DS360 has two different output types: unbalanced and balanced. The currently selected output type is indicated by the LED in the OUTPUT section. To change to the other output selection, press [∨] output down key. The significance of the different output types is listed below.
3-10 Operation The output impedance changes for unbalanced and balanced. Each output (positive and negative) has the selected source impedance for unbalanced outputs. For balanced outputs, each output has 1/2 the selected source impedance. Source Impedance for + or - Output Source Impedance 50Ω 150Ω 600Ω Hi-Z Unbalanced 50Ω 600Ω 25Ω Balanced 25Ω 75Ω 300Ω 25Ω The selected source impedance is displayed under the IMPEDANCE heading to the left of the display.
Operation 3-11 Modify Function This section describes how to set the modify functions on the DS360, including sweeps, bursts and bandwidth limited noise. Modify Function Type Modify functions are associated with the different output functions. Only the options available for the currently selected function type are accessible in the MODIFY FUNC list.
3-12 Operation minimize this, keep stop frequencies below 130 kHz when sweeping at maximum amplitude. Sweep Type Press the [∧] up or [∨] down key in the MODIFY FUNC area until the LIN SWP or LOG SWP LED is lit. The output frequency of a linear sweep changes linearly during the sweep time.
Operation 3-13 (from the TRIGGER IN, computer interface or front panel) and the actual beginning of the sweep. The SWEEP OUT BNC signal, which goes high at the beginning of the sweep, should be used if it is necessary to synchronize the DS360 with an external device, instead of the triggering signal. In addition, there is a dead time of between 0 and 0.317 ms between successive sweeps. If a trigger comes during a sweep or during the dead time following a sweep, it will be treated as an error and ignored.
3-14 Operation computer interfaces. In addition, the output can be gated on and off from the TRIGGER/GATE IN BNC, with TTL high setting the “ON” level and TTL low setting the “OFF” level. The current trigger source is indicated by an LED under the TRIGGER heading next to the display. To view the current trigger source for modification, press the [SHIFT][TRIG SRC] keys. To change the trigger source, use the spin knob or [>] right or [<] left cursor keys.
Operation 3-15 If a value that is greater than or equal to the current burst rate is entered the unit will beep, display “BurRatEr” ( burst rate error) and flash the ERR LED. Noise Bursts Internal Burst Rate The burst rate for noise is set in seconds. Any entry key may be used and no units are displayed. The rate can vary between 20 µs to 600.0 s, with 4 digits of resolution. In addition, the rate must be greater than and within 4 digits of the Burst Count. To display the current burst rate, press [RATE].
3-16 Operation the current value. If an out of range value is entered, the unit will beep, display “Depth Err” and flash the ERR LED. Gated Output When the DS360 is set to gated output mode (see Burst Trigger Source) the output is gated on and off from the TRIGGER/GATE IN BNC. A TTL high level outputs the “ON” level and TTL low the “OFF” level. For sine and square waves, level changing occurs at zero crossings.
Operation 3-17 Center Frequency The center frequency can vary from 0 Hz to 200.000 kHz in 200 Hz increments. To display the current center frequency, press the [CENTER] key. To change the center frequency, type a new value using the numeric keypad, followed by the appropriate units (Hz or kHz). If an out of range frequency is entered, the DS360 will beep, display “Freq Err” and flash the ERR LED.
3-18 Operation Instrument Setup This section describes the DS360’s default settings, storing and recalling settings, setting the computer interfaces and running the self-tests. Default Settings Press [RCL][0] to recall the DS360’s default settings. This is a good place to begin whenever you wish to start the instrument from a known state. The default settings are listed below. See Chapter 5 for information on the default settings for the digital output.
Operation 3-19 message “Store Done” will be displayed to indicate that the settings have been stored. Memory location 0 is the location of the defaults and cannot be stored to. Storing to it will generate a range error. Recalling Settings To recall a stored setting, press [RCL] followed by a location number (0-9). After pressing any of the units keys to enter the location, the message R “ cl Done” will be displayed to indicate that the settings have been recalled.
3-20 Operation DS360’s input data queue. The data is displayed in ASCII hex format, where each character is represented by 2 hexadecimal digits. The most recently received character is indicated by the decimal point to the right of the digit. Turning the spin knob to the left moves the window earlier into the data queue; turning it to the right moves later into the queue. The display window cannot be moved later than the last character received.
Operation 3-21 Troubleshooting Nothing Happens on Power On Make sure that the power entry module on the rear panel is set for the correct line voltage, that the correct fuse is installed and that the line cord is inserted all the way into the power entry module. The selected line voltage should be visible through the clear window in the power entry module, just below the fuse, when the power cord is removed.
3-22 Operation value.The DS360 is configured to send or receive: 2 stop bits, 8 data bits and no parity bits.When data is being recieved by the DS360, the ACT LED will flash. If this LED is not flashing there is no data being recieved by the DS360. When connecting the DS360 to a PC use a standard PC serial cable, not a “null modem” cable. The DS360 is a DCE (Data Communications Equipment) device, and should be connected with a straight cable to a DTE device (Data Terminal Equipment).
Operation 3-23 Self-Test Errors Message Meaning CPU ERR The DS360 detected a problem with the CPU. CODE ERR XX The DS360 detected a ROM checksum error. XX is the expected checksum value. SYSD ERR The DS360 failed its RAM read / write test. CALD ERR The calibration data in RAM is corrupted. The factory calibration data will be reloaded from PROM. DSP 0 DSP not responding. The instrument must be power cycled. DSP 1 followed by: xxxxxx DSP data bus error.
3-24 Operation LD DONE This message occurs after succesfully loading the DSP memory. RECALL Recall menu. It should be followed by a number between 0-9. RCL DONE This message will be displayed for about 1 second after a succesfull recall. STORE Store menu. Should be followed by a number between 1-9. (Store 0 will generate a Range Error). STO DONE This message will be displayed for about 1 second after a succesfull store. SEND SRQ SRQ menu.
Remote Programming 4-1 Chapter 4 Remote Programming In this Chapter Index of Commands 4-2 Introduction 4-5 Communication with GPIB Communication with RS-232 Status Indicators and Queues Command Format Interface Ready and Status GET (Group Execute Trigger) 4-5 4-5 4-5 4-6 4-6 4-7 Command Syntax 4-8 Function Output Control Commands 4-9 Function Frequency Amplitude Offset Output Commands Relative Mode Frequency Step 2-Tone Commands 4-9 4-9 4-9 4-9 4-9 4-10 4-10 4-10 Modify Function Commands 4-
4-2 Remote Programming Status Reporting Commands 4-16 Hardware Test & Calibration Commands 4-17 Status Byte Definition 4-19 Example Programs GPIB Communications in C RS-232 Communications in BASIC DS360 Ultra Low Distortion Function Generator 4-21 4-22 4-23
Remote Programming 4-3 Index of Commands Variables i, j, k, n x integers real numbers Function Output Control Commands FUNC (?) i FREQ (?) x AMPL (?) x OFFS (?) x OUTE (?) i OUTM (?) i TERM (?) i RELA (?) i STPE (?) i FSTP (?) x TTAA (?) x TTBA (?) x TTAF (?) x TTBF (?) x TTMD (?) i 4-9 4-9 4-9 4-9 4-9 4-9 4-10 4-10 4-10 4-10 4-10 4-11 4-11 4-11 4-11 0=sin, 1=sqr, 2=wht noise, 3=pink noise, 4=2Tone. Sets Output Freq to x. Sets Ampl to x; must include VP, VR, dB, dV or dm. Sets Output Offset to x.
4-4 Remote Programming Setup Control Commands *IDN? *RCL i *SAV i KEYS (?) i 4-17 4-17 4-17 4-17 Returns the DS360 device identification string. Recalls stored setting number i (0 to 9). Saves the current instrument setting as setting number i (1 to 9). Simulates the pressing of a front pannel key. Status Reporting Commands *CLS *ESE (?) i *ESR? {i} *PSC (?) i *SRE (?) i *STB? {i} DENA (?) i STAT? {i} 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 Clears all status registers.
Remote Programming 4-5 Introduction The DS360 Ultra Low Distortion Function Generator may be remotely programmed via either the RS232 or GPIB (IEEE-488) interfaces. Any computer supporting these interfaces may be used to program the DS360. Both interfaces are receiving at all times; the DS360 will respond to the interface that sent the query. Communicating with GPIB The DS360 supports the IEEE-488.1 (1978) interface standard. It also supports the required common commands of the IEEE-488.
4-6 Remote Programming Command Format Communication with the DS360 uses ASCII characters. Commands may be in either UPPER or lower case. A command to the DS360 consists of a four character command mnemonic with an optional ?, arguments if necessary and a command terminator. The terminator must be a linefeed or carriage return on RS232, or a linefeed or EOI on GPIB. No command processing occurs until a terminator is received. Commands function identically on RS232 and GPIB whenever possible.
Remote Programming 4-7 When using the GPIB interface, serial polling may be used to check the No Command bit while operation is in progress. After the bit becomes set, the ERR bit may be checked to verify successful completion of the command. If the RS232 interface is used, or serial polling is not available, then the *STB ? and *ESR ? status query commands may be used to query the Status Bytes.
4-8 Remote Programming Command Syntax The four letter mnemonic in each command sequence specifies the command. The rest of the sequence consists of parameters. Parameters shown in { } are not always required. Generally, parameters in { } are required to set a value in the DS360. Multiple parameters are separated by commas. Multiple commands may be sent on one command line by separating them with semicolons (;). The present value of a parameter may be determined by sending a query command.
Remote Programming 4-9 Function Output Control Commands Note: The analog output control commands may be selected only when the analog output type is selected. If these commands are sent when the unit is in digital mode a “Not Appl” (not applicable) message will be displayed on the screen and syntax error will occur. The command OUTD0 (analog output) should be sent at the beginning of any program that uses the analog output.
4-10 Remote Programming OUTE (?) i The OUTE command disables the output for i=0 and enables the output for i=1. The OUTE? query returns the current status of the output. OUTM (?) i The OUTM command selects the output mode of the instrument. For i=0 the output is unbalanced and for i=1 it is balanced. The OUTM? query returns the current output mode. TERM (?) i The TERM command sets the output source impedence as indicated in the table below. The TERM? query returns the current source impedance setting.
Remote Programming 4-11 The TTAA? query will return the amplitude in the currently displayed units. For example, if the display shows 10.0 VRMS, the TTAA? query will return 10VR. If the units indicator is sent along with the command (such as TTAA?VP), the returned units will match the units indicator and the amplitude will be returned in those units. TTBA (?) x The TTBA command sets the Tone 2 amplitude to x. The value x must consist of the numerical value and a units indicator.
4-12 Remote Programming Modify Function Commands Note: Most of the modify function parameters may be selected at any time that the unit is in analog mode. To observe the changes effecting the output, be sure that the appropriate modifying type is selected and the modify function is on. Some of the parameters cannot be modified for all settings. These are indicated below. When this occurs, a “Not Appl” (not applicable) message will be displayed on the screen and syntax error will occur.
Remote Programming 4-13 i 0 1 2 3 Source INTERNAL EXTERNAL SINGLE GATE (burst only) If the trigger source is set to gate when the unit is in burst mode and the unit is changed to sweep mode, the trigger source will change to internal. STFR (?) x The STFR (?) command sets (queries) the sweep start frequency to x Hertz. An error will be generated if the start frequency is higher than the current stop frequency. SPFR (?) x The SPFR (?) command sets (queries) the sweep stop frequency to x Hertz.
4-14 Remote Programming NRCT (?) x The NRCT command sets the Noise Rate Count to x. The NRCT? query returns the current value of this parameter. x may range from 2 µs to 600 s. If NRCT is set to a value lower than NBCT, NBCT is adjusted to NRCT/10; if NRCT is set to a value more than 4 digits above NBCT, NBCT is adjusted to the lowest allowable in that range (i.e. if NBCT=1ms, setting NRCT to 600s will adjust NBCT to 100ms).
Remote Programming 4-15 Setup Control commands *IDN? The *IDN? common query returns the DS360 device identification string. This string is in the format: “StanfordResearchSystems,DS360,sn,vn” where sn is the five digit serial number of the particular unit and vn is a 3 digit firmware version number. *RCL i The *RCL command recalls stored setting number i, where i may range from 0 to 9. If the stored setting is corrupt or has never had anything stored in it, an execution error will be generated.
4-16 Remote Programming Status Reporting Commands Note: See tables at the end of the programming section for Status Byte definitions. *CLS The *CLS common command clears all status registers. This command does not affect the status registers. *ESE (?) i The *ESE command sets the standard event status byte enable register to decimal value i. *ESR? {i} The *ESR common command reads the value of the Standard Event Status Register. If the parameter i is present, the value of bit i is returned (0 or 1).
Remote Programming 4-17 Hardware Test and Calibration Commands *TST? The *TST? common query runs the DS360 internal self tests. After the tests are complete, the test status is returned as a one byte decimal value. If the value is 0, no errors have been detected, otherwise the returned value is the encoded value of the status of the test register described below.
4-18 Remote Programming $PST (?) i The $PST command sets the DS360 post-amplifier attenuators to range i. The integer i is the attenuation range, which takes values from 0 to 3. Each range sets the post-attenuators to -20*i dB. Setting the amplitude will return the attenuators to their normal position. The $PST? query returns the current attenuator position. $WRD (?) j, {k} The $WRDj,k command sets the value of calibration word j to k.
Remote Programming 4-19 Status Byte Definitions The DS360 reports on its status by means of three status bytes: the Serial Poll Byte, the Standard Status Byte and the DDS Status Byte. Upon power on, the DS360 may either clear all of its status enable registers or maintain them in the state they were in on power down . The *PSC command determines which action will be taken. The status bits are set to 1 when the event or state described in the tables below has occured or is present.
4-20 Remote Programming Standard Event Status Byte Bit 0 1 2 3 4 Name Unused Unused Query Error Unused Execution Error 5 Command Error 6 7 URQ PON Set When Set on output queue overflow A command cannot be executed (Range Error) (Parameter out of range, command not valid, etc.) Command Syntax Error or unrecognized command Set by any keypress Set by Power ON This status byte is defined by IEEE-488.2 (1987) and is used primarily to report errors in commands received over the communications interface.
Remote Programming 4-21 Example Programs Using Microsoft C with the National Instruments GPIB card on a PC To succesfully interface the DS360 to a PC via the GPIB interface, the instrument, interface card and interface drivers must all be configured properly. To configure the DS360, the GPIB address must be set in the [SHIFT][GPIB] menu.The default address is 8; use this address unless a conflict occurs with other instruments in your system.
4-22 Remote Programming Example1: GPIB Communication in C language /* C program to demonstrate communication with the DS360 via GPIB. Written in Microsoft C and uses National Instruments GPIB card. Assumes DS360 is installed as device name DS360. Refer to National Instruments for Device Name setup. */ #include #include #include #include #include
Remote Programming 4-23 Example 2: RS232 communication in BASIC language BASIC program to demonstrate communication with the DS360 via RS232. Program assumes the DS360 BAUD rate is set to 9600. 10 OPEN “com2:9600,n,8,2,cs,ds,cd” FOR RANDOM AS #1 ‘ Setup com2’ 20 PRINT #1, “ ” 30 PRINT #1, “*RST” ‘ Reset the DS360’ 40 GOSUB 190 ‘ Query DS360 and display result’ 50 PRINT #1, “FREQ123456” ‘ Set new frequency to 123.
4-24 Remote Programming DS360 Ultra Low Distortion Function Generator
5-1 Chapter 5 Performance Tests The performance tests described in this section are designed to verify with a high degree of confidence that the unit is performing within the specifications. The results of each test should be recorded on a copy of the test sheet located at the end of this section. In this Chapter Getting Ready 5-3 Keypad Knob Reset Serial Number Firmware Revision Necessary Equipment Warm-up Test Record Distortion Measurements 5-3 5-3 5-3 5-3 5-3 5-4 5-4 5-4 5-5 1.
5-2 Performance Tests DS360 Ultra Low Distortion Function Generator
Performance Tests 5-3 Getting Ready Parameters are set in the DS360 using the front panel keypad or the spin knob. Most parameters can be set directly from the keypad, although it is often more convenient to use the spin knob. Keys are referenced by brackets like this [KEY]. Keypad Use the up and down arrow keys [∧], [∨] to change between functions. To set a parameter, press the the key with the desired parameter on it, ([FREQ] for example, to set the frequency). The current value will be displayed.
5-4 Performance Tests Instrument Analog Oscilloscope Time Interval Counter FFT Spectrum Analyzer DC/AC Voltmeter Feedthrough Termination Notch Filters Critical Specification Recommended Model 100 MHz Bandwidth Tektronix 2252 Time Interval Accuracy: 1 ns Frequency Accuracy: <5ppm SR620 Frequency Range: DC to 100 kHz Amplitude Accuracy +/- 0.1 dB Distortion and Spurious: <80 dB SR780 5 1/2 Digits DC Accuracy 0.1% AC Accuracy True RMS AC to 100 kHz HP3458A 50 Ω +/- 0.
Performance Tests 5-5 Distortion Measurements The notch filters described here are used with a spectrum analyzer for verifying the distortion performance of the DS360. Since there are few, if any, spectrum analyzers with a -120 dB distortion floor, a pre-filter is necessary to attenuate the fundamental frequency and increase the sensitivity to distortion signals.
5-6 Performance Tests Total harmonic distortion can be calculated from the following formula: _________________________________________________ T.H.D. (dB) = 20 log (√ (log-1(2nd))2 + (log-1(3rd))2 + (log-1(4th))2 + ... + (log-1(nth))2 ) where 2nd, 3rd, 4th, ... nth are the values of the corresponding harmonics in dB relative to the fundamental.
Performance Tests 5-7 1. Front Panel Test This test verifies the functionality of the front panel display, LED’s, keys and knob. Setup No external setup is required. Procedure 1) Turn on the DS360 while holding down the [FREQ] key. A single segment of the display should light. 2) Press the [>] to light each segment (of 7) of the left 2 digits and decimal points. Only one segment should be on at a time. Pressing the [<] key will go back to the previous segment.
5-8 Performance Tests 2. Self Tests This test verifies that the DS360’s memory and processors are functional. Setup No external setup is required. Procedure 1) Turn on the DS360. The ROM firmware version number and the serial number should be displayed for about 3 seconds. The self tests will execute and the message “Tests Pass” should be displayed. If an error message appears, see the TROUBLESHOOTING section in Chapter 3 for a description of the error. 2) This completes the self tests.
Performance Tests 5-9 3. Frequency This test measures the frequency accuracy of the DS360. Setup Connect one of the DS360 BNC outputs to the Time Interval Counter. Set the Time Interval Counter to measure frequency with a 1 second gate. Procedure 1) Reset the DS360 (Turn power off, wait 2 seconds, then turn power on w/ [CLR] pressed). 2) Press [AMPL][1][0][VRMS] [FREQ][1][0][0][kHz] 3) The frequency value on the Time Interval Counter should read 100.000 kHz ± 2.5 Hz.
5-10 Performance Tests 4. Amplitude This test measures the amplitude accuracy of the DS360. For the sine, white noise and pink noise the DVM will be used directly to measure the amplitude. The amplitude for balanced measurements is defined as the voltage between the + and - BNC outputs. Due to the relatively slow rise time of the squarewaves, the DVM cannot be used directly for higher frequency measurements.
Performance Tests 5-11 b) Press [∨] (output down) to select balanced output. c) Press [AMPL][amplitude] d) Record the amplitude value from the DVM. 4) The sine amplitude accuracy is verified at 1.0 VRMS and various frequencies. Reconnect the + BNC to the DVM. For each frequency perform steps 5b through 5c. Frequency 2.0 kHz 5.0 kHz 10 kHz 20 kHz 50 kHz 100 kHz 200 kHz Frequency 10 Hz 20 Hz 50 Hz 100 Hz 200 Hz 500 Hz 1.
5-12 Performance Tests c) Record the VRMS value from the DVM and the VPEAK-PEAK value from the scope. d) Press [FREQ][frequency] e) Record the VPEAK-PEAK value from the scope. f) Calculate the flatness using using the minimum (Min) and maximum (Max) values from the peak to peak values. ( Max − Min ) * 100% = ________ % Max + Min ( ) 2 7) The white and pink noise amplitude accuracy is verified at a single amplitude level using the DVM.
Performance Tests 5-13 5. Harmonic Distortion and Noise These tests check the harmonic distortion for sine and square waves. Setup Set the spectrum analyzer input to shield grounded with AC coupling. Obtain the notch filters described on page 5-5. Procedure 1) Reset the DS360 (Turn power off, wait 2 seconds, then turn power on w/ [CLR] pressed. 2) The distortion is verified at 2 amplitudes and 3 frequencies. Set the spectrum analyzer to exponential vector averaging, with 50 averages and dBV RMS units.
5-14 Performance Tests a) Connect the + output of the DS360 directly to the spectrum analyzers input. Set the spectrum analyzer for a 0 to 12.5 kHz span. b) Press [∨] to select squarewave. [AMPL][1][VRMS] c) Measure the amplitudes of the even harmonics (2f, 4f ...) relative to the fundamental. Record the largest even harmonic on the test record. d) Change the spectrum analyzer span to 0 to 100kHz. e) Press [FREQ][2][0][kHz] f) Measure the amplitudes of the even harmonics relative to the fundamental.
Performance Tests 5-15 6. Waveforms These procedures check the various output waveform characteristics. Setup The spectrum analyzer will be used to measure the waveform characteristicis of the noise and 2-Tone signals. The oscilloscope will be used to measure rise and fall times of the square wave. Connect the + BNC output of the DS360 to the spectrum analyzer. Set the spectrum analyzer input to shield grounded with AC coupling.
5-16 Performance Tests b) Press [∨] (function down) to select 2-Tone. [FREQ] [1] [kHz] [AMPL] [1] [VRMS] [SHIFT] [T1/T2] [FREQ] [2] [0] [kHz] [AMPL] [.] [1] [VRMS] c) Span the spectrum analyzer down to measure the IMD products (2T1+T2...) for the first 2Tone, at the frequencies listed in the table. Record the results on the test record.
Performance Tests 5-17 7. Sweeps These procedures test the flatness of frequency sweeps. Setup Connect the + BNC of the DS360 to CH A of the scope. Connect the SWEEP OUT BNC from the rear panel of the DS360 to CH B of the scope. Set CH A to 1 V/div, CH B to 5V/div, the time base to 50µs/div and triggering on CH B. Procedure 1) Reset the DS360 (Turn power off, wait 2 seconds, then turn power on w/ [CLR] pressed). 2) Measure the sweep flatness for a 1 Hz to 100 kHz sweep.
5-18 Performance Tests 8. Bursts These tests measures the accuracy of the burst levels. Setup Connect the + BNC output of the DS360 the input of the spectrum analyzer. Set the spectrum analyzer to measure spectrum with the input on AC coupling and the shield grounded. Set averaging to exponential RMS with 10 averages. Select dBVRMS for units and set the span to 0-12.5 kHz. Procedure 1) Reset the DS360 (Turn power off, wait 2 seconds, then turn power on w/ [CLR] pressed).
Performance Tests 5-19 9. DC Offset These tests measure the offset accuracy of the function of the DS360. Setup Connect the positive output of the DS360 to the DVM. Set the DVM to DC volts, auto-ranging. Perform any auto zeroing functions. Set the integration time long enough for 0.1% accuracy. To make residual offset measurements it is necessary to trigger the DVM from the DS360 sync output to average out the AC waveforms.
5-20 Performance Tests d) Measure the output voltage on the DVM. Record the results. 4) Measure the residule offset (0 VDC) for square waves, white noise and pink noise. a) Press [∨] (function down) to select square waves. [AMPL] [1] [VRMS] b) Measure the output voltage on the DVM. Record the results. c) Disconnect the sync signal from the DS360 to the DVM. Set the integration time to the longest possible, to ensure accurate DC measurements of the noise signals.
Performance Tests 5-21 10. Output Impedance These tests confirms the output source resistors of the DS360. Setup Connect the + BNC output of the DS360 to the DVM through the 50 Ω feed through terminator. Set the DVM to AC volts, auto-ranging. Procedure 1) Reset the DS360 (Turn power off, wait 2 seconds, turn power on w/ [CLR] pressed). 2) Measure the output voltage for Hi-Z output impedance and record the results on the test record. 3) Measure the output voltage for 600 Ω (unbalanced) output impedance.
5-22 Performance Tests 7) Disconnect the + BNC output from the DVM. Connect the - BNC output to the DVM. Repeat steps 1 through 5. 8) Confirm the output on/off function operates a) Press [ON/OFF] (output on/off) b) Confirm that the DVM reads 0 (or nearly zero). 9) This completes the offset tests.
Performance Tests 5-23 DS360 Performance Test Record Serial Number _________________ Firmware Revision _____________ Page 1 of 4 Tested By _______________________ Date ___________________________ Equipment Used ____________________________________________________________________ ____________________________________________________________________ 1. Front Panel Test Display Keypad Knob Pass ____ ____ ____ Fail ____ ____ ____ Pass ____ Fail ____ 2. Self Test Test Self Tests 3.
5-24 Performance Tests DS360 Performance Test Record Page 2 of 4 4. Amplitude Accuracy (Continued) 1.0 kHz 2.0 kHz 5.0 kHz 10 kHz 20 kHz 50 kHz 100 kHz 200 kHz 0.99 VRMS 0.99 VRMS 0.99 VRMS 0.99 VRMS 0.99 VRMS 0.99 VRMS 0.99 VRMS 0.99 VRMS _______ _______ _______ _______ _______ _______ _______ _______ 1.01 VRMS 1.01 VRMS 1.01 VRMS 1.01 VRMS 1.01 VRMS 1.01 VRMS 1.01 VRMS 1.01 VRMS Antialaising Filter Amplitude Frequency 10 Hz 20 Hz 50 Hz 100 Hz 200 Hz 500 Hz 1.0 kHz 2.0 kHz 5.
Performance Tests 5-25 DS360 Performance Test Record Page 3 of 4 5. Harmonic Distortion Sine Wave Distortion Frequency 1 kHz 1 kHz 11 kHz 11 kHz 31 kHz 31 kHz Amplitude 1.0 VRMS 10.0 VRMS 1.0 VRMS 10.0 VRMS 1.0 VRMS 10.0 VRMS + Output _______ _______ _______ _______ _______ _______ - Output _______ _______ _______ _______ _______ _______ Upper Limit -106 dB -105 dB -100 dB -99 dB -96 dB -93 dB Sinewave Broad Band Noise Frequency 1 kHz 1 kHz 11 kHz 11 kHz 31 kHz 31 kHz Amplitude 1.0 VRMS 10.
5-26 Performance Tests DS360 Performance Test Record Page 4 of 4 9. DC Offset Offset Linearity Waveform Sine Sine Sine Sine Sine Square White Noise Pink Noise Set Value +20 VDC +2.0 +0.2 +0.02 +0.002 -20 VDC -2.0 -0.2 -0.02 -0.002 |Lower Limit| 19.775 VDC 1.955 VDC 0.1955 VDC 19.55 mVDC 1.905 mVDC -19.775 VDC -1.955 VDC -0.1955 VDC -19.55 mVDC -1.905 mVDC Offset ________ ________ ________ ________ ________ ________ ________ ________ ________ ________ |Upper Limit| 20.225 VDC 2.045 VDC 0.
Circuit Description 6-1 Chapter 6 Circuit Description This chapter provides descriptions of the circuitry of the DS360. Each boards description and function is discussed. The schematics and parts list are shown at the end of the chapter.
6-2 Circuit Description DS360 Ultra Low Distortion Function Generator
Circuit Description 6-3 Overview The DS360’s circuitry is divided into two major sections: the digital section and the analog section. The digital section contains the controlling microprocessor, communications interfaces, front panel control and digital signal processor. The analog section contains the analog to digital converter, waveform conditioning circuitry, amplifiers and attenuators.
6-4 Circuit Description Microprocessor and System Clocks U401 is a Z80 general purpose microprocessor. It is clocked at 10.6 MHz, generated from the main system clock. The 16 bit address space (A0-A15), is divided into ROM (U402) and RAM (U403) by U413. The memory map for ROM and RAM is as follows: ROM RAM $0000 to $CFFF $D000 to $FFFF U407 (74HC154) generates all chip selects for the system. U404 and U406 are system status and control ports, respectively.
Circuit Description 6-5 Front Panel Control The front panel display board consists of eight 7 segment displays and 50 discrete LEDs. They are arranged into eight groups, each driven by a strobe line. U501 and U502 are the latch and drivers for the strobes. U503 and N501 are pull down latches and current limiting resistors for the seven segment displays. U505, U506, N504, R502 and R503 are latches, pull down transistors and current limiting resistors for the discrete LED’s. U507 is the keypad input.
6-6 Circuit Description Analog Board This section covers schematics ANA-1 through ANA-7 at the end of this chapter. The analog board contains the interface logic to the digital board, the waveform DAC, all signal conditioning circuitry, attenuators, amplifiers and analog power supplies. Digital - Analog Interface U101, U102 and U103 (HCPL-7100) are low jitter opto-isolators that transmit the serial waveform data from the DSP to the waveform DAC.
Circuit Description 6-7 signal. Each filter is a second order, state variable, low pass filter. J301 and J302 are connected to switchable resistor networks. The filters are programmed within a decade by varying the resistors on J301 and J302. There are 9 steps per decade, set by R0 - R5 (U309). Decades are set by changing capacitors C301 - C304 and C317 - C320 with relays K301, K302, K304, K305. The resistor and capacitor settings are always the same for both filters.
6-8 Circuit Description U503). Q503, Q504 and Q506 are configured as a cascode, to maintain a constant voltage across U503. Q501 and Q502 are active collector loads for U503 A and B. Q507 provides a low impedance source to Q508, which provides most of the voltage gain. It is biased at 3.5 mA by Q509. Output transistors Q512 and Q513 are configured as a class B amplifier (push-pull). However, Q510 and Q511 bias them slightly on, to reduce crossover distortion.
Circuit Description 6-9 Front Panel This section covers schematic FP-1 and FP-2 at the end of this chapter. Display Board The front panel display board consists of eight 7 segment displays, 50 discrete LEDs, the keypad and the spin knob. The front panel uses a a multiplexed scheme to minimize the number of conductors required to drive it. The 7 segment displays and LEDs are divided into eight sections, each driven by a strobe line.
6-10 Circuit Description DS360 Ultra Low Distortion Function Generator
Parts List 6-11 Digital Board Parts List This section covers schematics DIG-1 through DIG-7. Digital Board Assembly Ref No. SRS Part No.
6-12 Parts List C 722 C 723 C 724 C 725 C 726 C 727 C 728 C 729 C 730 C 731 C 732 C 733 C 734 C 735 C 736 C 737 C 738 C 739 C 740 C 741 C 742 C 743 C 744 C 745 C 746 C 747 C 748 C 749 C 750 C 770 C 771 C 772 C 773 C 774 D 401 D 402 D 403 D 701 D 702 J 201 J 204 J 205 J 401 J 501 J 601 J 602 J 701 JP401 L 401 N 101 N 102 N 103 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-0
Parts List 6-13 N 104 N 501 N 502 N 503 N 504 P 201 PC1 Q 401 Q 403 R 101 R 203 R 204 R 205 R 206 R 207 R 208 R 301 R 401 R 402 R 403 R 406 R 407 R 408 R 409 R 410 R 501 R 502 R 503 R 601 R 602 R 603 R 604 R 701 R 702 SO402 SP401 SW701 U 101 U 102 U 103 U 104 U 105 U 106 U 107 U 109 U 111 U 112 U 113 U 114 U 115 U 116 U 117 4-00334-425 4-00420-420 4-00468-420 4-00338-425 4-00673-421 4-00915-440 7-00474-701 3-00140-325 3-00021-325 4-00141-407 4-00021-401 4-00034-401 4-00021-401 4-00053-401 4-00053-401 4-000
6-14 Parts List U 118 U 119 U 207 U 208 U 210 U 301 U 302 U 303 U 304 U 305 U 306 U 307 U 401 U 403 U 404 U 405 U 406 U 407 U 408 U 409 U 410 U 411 U 412 U 413 U 414 U 415 U 501 U 502 U 503 U 504 U 505 U 506 U 507 U 508 U 509 U 510 U 601 U 602 U 603 U 604 U 605 U 703 UZ409 Z0 Z0 3-00049-340 3-00274-340 3-00155-340 3-00039-340 3-00165-340 3-00705-343 3-00706-343 3-00492-340 3-00046-340 3-00049-340 3-00049-340 3-00199-340 3-00298-340 3-00299-341 3-00044-340 3-00492-340 3-00046-340 3-00158-340 6-00191-621 3-0
Parts List 6-15 ) Analog Board Parts List This section covers schematics ANA-1 through ANA-7. Analog Board Assembly Ref No. SRS Part No.
6-16 Parts List C 237 C 238 C 239 C 240 C 241 C 242 C 243 C 244 C 245 C 246 C 247 C 301 C 302 C 303 C 304 C 305 C 306 C 307 C 308 C 309 C 310 C 311 C 312 C 313 C 314 C 315 C 316 C 317 C 318 C 319 C 320 C 321 C 322 C 323 C 324 C 325 C 326 C 327 C 328 C 329 C 330 C 331 C 332 C 333 C 334 C 335 C 336 C 337 C 338 C 339 C 401 C 402 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00225-548 5-00148-545 5-00003-501 5-00537-554 5-00323-554 5-00324-554 5-00325-525 5-0
Parts List 6-17 C 403 C 404 C 405 C 406 C 407 C 408 C 409 C 410 C 411 C 412 C 413 C 414 C 415 C 416 C 417 C 418 C 501 C 502 C 503 C 504 C 505 C 506 C 507 C 508 C 509 C 510 C 511 C 512 C 513 C 514 C 515 C 516 C 517 C 520 C 521 C 522 C 523 C 524 C 525 C 526 C 527 C 528 C 529 C 530 C 531 C 532 C 533 C 534 C 535 C 536 C 701 C 702 5-00012-501 5-00034-526 5-00100-517 5-00100-517 5-00023-529 5-00023-529 5-00023-529 5-00023-529 5-00002-501 5-00002-501 5-00148-545 5-00100-517 5-00100-517 5-00225-548 5-00023-529 5-0
6-18 Parts List C 703 C 704 C 705 C 706 C 707 C 708 C 709 C 710 C 711 C 712 C 713 C 714 C 715 C 716 C 717 C 718 C 719 C 720 C 721 C 722 C 723 C 724 C 725 C 726 C 727 C 728 C 729 C 730 C 731 C 732 C 733 C 734 C 735 C 736 C 737 C 738 C 739 C 740 C 741 C 742 C 743 C 744 C 745 C 746 C 747 C 748 C 749 C 755 C 756 C 757 C 758 C 759 5-00321-509 5-00192-542 5-00321-509 5-00192-542 5-00192-542 5-00192-542 5-00041-509 5-00041-509 5-00219-529 5-00022-501 5-00219-529 5-00022-501 5-00219-529 5-00022-501 5-00219-529 5-0
Parts List 6-19 C 760 C 761 C 762 C 763 C 770 C 771 C 772 C 773 C 774 C 775 C 776 C 777 C 780 C 781 C 782 C 783 C 784 C 785 C 786 C 787 C 790 C 791 C 792 C 793 C 794 C 795 C 796 D 501 D 502 D 503 D 504 D 505 D 506 D 507 D 508 D 509 D 510 D 701 D 702 J 601 J 602 J 701 K 201 K 202 K 301 K 302 K 303 K 304 K 305 K 401 K 402 K 403 5-00100-517 5-00100-517 5-00100-517 5-00100-517 5-00023-529 5-00023-529 5-00023-529 5-00225-548 5-00023-529 5-00023-529 5-00281-521 5-00281-521 5-00023-529 5-00023-529 5-00023-529 5-0
6-20 Parts List K 404 K 405 K 406 K 407 K 601 K 602 K 603 K 604 K 605 K 606 K 607 L 401 L 701 L 702 L 703 L 704 L 705 L 706 L 707 L 708 N 101 N 102 N 201 N 202 N 203 N 204 N 205 N 206 N 207 N 208 N 301 N 302 N 401 N 402 P 201 P 202 P 203 P 301 P 401 P 501 P 502 P 503 P 504 P 505 P 506 PC1 Q 501 Q 502 Q 503 Q 504 Q 505 Q 506 3-00523-335 3-00617-335 3-00523-335 3-00617-335 3-00523-335 3-00523-335 3-00523-335 3-00523-335 3-00523-335 3-00523-335 3-00523-335 6-00114-603 6-00055-630 6-00055-630 6-00055-630 6-000
Parts List 6-21 Q 507 Q 508 Q 509 Q 510 Q 511 Q 512 Q 513 Q 514 Q 515 Q 516 Q 517 Q 518 Q 519 Q 520 Q 521 Q 522 Q 523 Q 524 Q 525 Q 526 Q 601 Q 602 Q 603 R 101 R 102 R 103 R 104 R 105 R 201 R 202 R 203 R 204 R 205 R 206 R 207 R 208 R 209 R 210 R 211 R 212 R 213 R 214 R 215 R 216 R 217 R 218 R 219 R 220 R 221 R 222 R 223 R 224 3-00022-325 3-00620-321 3-00021-325 3-00021-325 3-00021-325 3-00621-322 3-00622-322 3-00022-325 3-00022-325 3-00021-325 3-00021-325 3-00021-325 3-00022-325 3-00022-325 3-00620-321 3-0
6-22 Parts List R 225 R 226 R 227 R 228 R 229 R 230 R 231 R 232 R 233 R 235 R 237 R 239 R 240 R 241 R 242 R 243 R 244 R 245 R 246 R 247 R 248 R 301 R 302 R 303 R 304 R 305 R 306 R 307 R 308 R 309 R 310 R 313 R 314 R 315 R 316 R 401 R 402 R 403 R 404 R 405 R 406 R 407 R 408 R 409 R 410 R 411 R 412 R 413 R 414 R 415 R 416 R 417 4-00161-407 4-00130-407 4-00885-407 4-00210-407 4-00526-407 4-00193-407 4-00131-407 4-00138-407 4-00517-407 4-00391-407 4-00138-407 4-00137-407 4-00188-407 4-00150-407 4-00418-407 4-0
Parts List 6-23 R 418 R 419 R 420 R 421 R 422 R 423 R 424 R 425 R 426 R 427 R 429 R 430 R 501 R 502 R 503 R 504 R 505 R 506 R 507 R 508 R 509 R 510 R 511 R 512 R 513 R 514 R 515 R 516 R 517 R 518 R 519 R 520 R 521 R 522 R 523 R 524 R 525 R 526 R 527 R 528 R 529 R 530 R 531 R 532 R 533 R 534 R 535 R 536 R 537 R 538 R 539 R 540 4-00135-407 4-00130-407 4-00176-407 4-00398-407 4-00130-407 4-00188-407 4-00577-407 4-00577-407 4-00130-407 4-00141-407 4-00193-407 4-00188-407 4-00238-407 4-00180-407 4-00654-407 4-0
6-24 Parts List R 541 R 542 R 543 R 544 R 545 R 546 R 547 R 548 R 549 R 550 R 551 R 552 R 553 R 554 R 555 R 556 R 557 R 558 R 559 R 560 R 564 R 565 R 566 R 567 R 568 R 569 R 570 R 571 R 572 R 573 R 574 R 575 R 601 R 602 R 603 R 604 R 605 R 606 R 607 R 608 R 609 R 610 R 611 R 612 R 613 R 614 R 615 R 616 R 617 R 618 R 619 R 620 4-00347-407 4-00580-407 4-00580-407 4-00154-407 4-00416-407 4-00763-407 4-00519-407 4-00577-407 4-00141-407 4-00141-407 4-00193-407 4-00138-407 4-00141-407 4-00461-407 4-00141-407 4-0
Parts List 6-25 R 621 R 622 R 623 R 624 R 625 R 626 R 627 R 628 R 629 R 630 R 631 R 632 R 633 R 634 R 635 R 636 R 701 R 702 R 703 R 704 R 705 R 706 R 707 TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 U 101 U 102 U 103 U 106 U 107 U 108 U 109 U 110 U 111 U 112 U 113 U 114 U 201 U 202 U 203 U 204 U 205 U 206 U 207 U 208 U 209 4-00522-407 4-00490-407 4-00869-439 4-00869-439 4-00870-439 4-00870-439 4-00871-439 4-00871-439 4-00872-439 4-00869-439 4-00869-439 4-00870-439 4-00870-439 4-00871-439 4-00871-439 4-00872-439 4-00141
6-26 Parts List U 210 U 301 U 302 U 303 U 304 U 305 U 306 U 308 U 309 U 401 U 402 U 403 U 404 U 405 U 406 U 407 U 408 U 501 U 502 U 503 U 504 U 505 U 506 U 601 U 602 U 603 U 604 U 605 U 606 U 607 U 608 U 609 U 610 U 706 U 707 U 708 Z0 Z0 Z0 Z0 3-00094-340 3-00423-340 3-00423-340 3-00423-340 3-00423-340 3-00423-340 3-00423-340 3-00616-340 3-00411-340 3-00618-340 3-00394-340 3-00394-340 3-00371-340 3-00619-340 3-00059-340 3-00130-340 3-00616-340 3-00616-340 3-00423-340 3-00231-328 3-00616-340 3-00423-340 3-0
Parts List 6-27 Front Panel Parts List This section covers schematics FP-1 through FP-2. Front Panel Assembly Ref No. Ref No. Ref No. Ref No.
6-28 Parts List D 138 D 139 D 140 D 141 D 142 D 143 D 144 D 145 D 146 D 148 D 149 D 150 D 151 D 152 D 153 D 154 D 155 D 156 D 160 D 161 D 162 D 163 D 164 D 165 D 166 D 167 J3 J4 J5 J6 J7 J8 J 12 J 13 J 101 J 102 PC1 PC2 R1 T 702 U 101 U 102 U 103 U 104 U 105 U 106 U 107 U 108 Z0 Z0 Z0 Z0 3-00012-306 3-00012-306 3-00012-306 3-00012-306 3-00012-306 3-00547-310 3-00547-310 3-00012-306 3-00012-306 3-00547-310 3-00547-310 3-00547-310 3-00547-310 3-00547-310 3-00547-310 3-00547-310 3-00547-310 3-00547-310 3-0000
Parts List 6-29 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 0-00048-011 0-00079-031 0-00089-033 0-00101-040 0-00104-043 0-00111-053 0-00122-053 0-00133-052 0-00149-020 0-00153-057 0-00181-020 0-00186-021 0-00187-021 0-00190-030 0-00209-021 0-00211-020 0-00231-043 0-00237-016 0-00243-003 0-00249-021 0-00256-043 0-00266-052 0-00270-052 0-00314-040 0-00407-032 0-00439-052 0-00472-018 0-00487-004 0-0
6-30 Parts List Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 Z0 6-00119-614 6-00165-610 6-00212-630 6-00574-611 6-00575-611 7-00565-720 7-00566-720 7-00567-720 7-00568-709 7-00569-709 7-00570-740 7-00584-721 7-00646-720 7-01256-720 9-00267-917 9-01516-917 9-01518-917 FT82-77 DS360 1"X.25"CYL .25A TIME LAG .
Parts List 6-31 Distortion Filter Parts List This section covers schematics PROGR-1. Distortion Filter Assembly Ref No. Ref No. Ref No. Ref No.
6-32 Parts List Miscellaneous and Chassis Parts List Ref No. Ref No. Miscellaneous and Chassis Assembly Ref No. Ref No.
