Panasonic Services Company National Training TH-42PHD5/TH-50PHD5 TH-42PHW5/TH50PHW5 GPH5D Chassis Plasma Display Panel Troubleshooting Guide Warning This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Objective...............................................................................................................5 2002 Model Line Up..............................................................................................6 Specifications.....................................................................................................7 Features.............................................................................................................8 New Asymmetrical Cell Structure Panel ..
Service Hints....................................................................................................46 After Image Prevention .......................................................................................53 Screen Saver Feature...................................................................................53 Side Bar Brightness adjustment....................................................................54 Option Setting .............................................................
Objective The information provided in this document is designed to assist the technician in determining the defective printed circuit board. The troubleshooting flow charts, signal path charts and connector information should provide enough detail that the technician can accurately determine which one of the printed circuit boards is required to repair the product. Alignment and adjustment procedures are also included in this document.
2002 Model Line Up TH-50PHW5 50-inch (127 cm) HD Plasma Display HD Panel Digital Cinema Reality Advanced 3-dimensional Progressive Scan 1366 x 768 XGA Resolution (UXGA Compatible) Wide Plasma Display Plasma Contrast Automatic Tracking System (C.A.T.S.
Specifications Our New 50” & 42” HD Progressive Panels The industry’s highest-resolution panels Panasonic Company PI Company F/H Progressive 1,366 x 768= 1.05 million pixels Progressive 1,280 x 768= 0.98 million pixels Interlace N/A Pixel pitch 0.810 (H) x 0.810 (V) = 0.656 0.858 (H) x 0.808 (V) = 0.693 42/43inch (42” Screen size) 1,024 x 768= 0.79 million pixels (43” Screen size) 1,024 x 768= 0.79 million pixels Pixel pitch 0.898 (H) x 0.674 (V) = 0.605 0.930 (H) x 0.698 (V) = 0.
Features Pixel explanation SD (Standard Definition) Panel 852 pixels 410,000 Pixels 480 pixels Provides the optimum number of pixels for viewing standard broadcasts and DVD. HD (High-Definition) panel 1,024 pixels 768 pixels 790,000 pixels Reproduces even the tiniest details of high-definition sources and other high-quality images.
Scan Explanation Panasonic progressive scan ALIS system Interlace scan Figure 2 The 1-field (1/60 sec) display pixels on the Panasonic 42" and 37" SD models and on the ALIS system models are VGA level. (Panasonic HD models are XGA level, for higher resolution.) A.L.I.S. (Alternate Lighting of Surfaces) method is one of the new panel driving systems of plasma display developed by Fujitsu Limited. ALIS method is a system developed from the 3 electrode discharging system.
Single Scan (SD) Dual Scan (HD) Figure 4 •Simple and low cost circuit •High performance •Higher brightness Figure 5 10
Disassembly Rear Cover Removal Remove the 27 screws, shown in Figure 6, and then pull away the rear cover. Figure 6 Removal of the shield Remove the six screws, shown in Figure 7, and then pull away the rear shield cover.
Location of Lead Wiring High frequency electromagnetic signals can create electrical interference within the unit. Be sure to route all wires through their respective harnesses reference. The chart below is an illustration representing the connectors and the wire harnesses associated with them.
42” HD PCB Board Layout Diagram Figure 10 Printed Circuit Board Information Table Board Name C1 C2 C3 C4 D1 D2 F H3 HX HZ P P3 P5 P6 P7 P8 S1 SC SD SS SS2 SS3 SU V1 Z Part Number TNPA2428 TNPA2429 TNPA2430 TNPA2431 TZTNP01LLSB TNPA2427 TNPA2444 TNPA2249 TZTNP01LLSU TXNHZ40JJS TXN/P10LLS TNPA2439 TNPA2440 TNPA2441 TNPA2442 TNPA2443 TNPA2283AC TNPA2434 TNPA2433 TNPA2435 TNPA2436 TNPA2437 TNPA2432 TNPA2282AC TNPA2445 Function Data Drive (Upper Left) Data Drive (Upper Right) Data Drive (Lower Right) Data Dr
50” PCB Board Layout Diagram Figure 11 Board Name C1 C2 C3 C4 C5 C6 C9 D1 D2 F H3 HX HZ P1 P3 P5 P6 P7 P8 S1 SC SD SS SS2 SS3 SU V1 Z Part Number TNPA2510 TNPA2511 TNPA2512 TNPA2513 TNPA2514AB TNPA2515 TNPA2608 TZTNP01MHSB TNPA2427AB TXN/F10MHS TNPA2249 TZTNP02KESE TXNHZ40JJS TXNP110MHS TNPA2566 TNPA2567 TNPA2568 TNPA2569 TNPA2570 TNPA2283AC TNPA2434AB TNPA2518 TXNSS10MHS TNPA2519 TNPA2520 TNPA2517 TNPA2282AC TNPA2445 Function Data Drive (Upper Left) Data Drive (Upper Center) Data Drive (Upper Right) Dat
42” SD PCB Layout Diagram Figure 12 Board Name C1 C2 D1 D2 F H3 HX HZ P S1 SC SD SS SS2 SS3 SU V1 Z Part Number TNPA2540 TNPA2541 TZTNP01MMSB TNPA2589 TXN/F10MMS TNPA2249 TZTNP020JAS TXNHZ40JJS TNPA2598 TNPA2622 TNPA2534 TNPA2584 TNPA2535 TNPA2536 TNPA2537 TNPA2583 TNPA2621 TNPA2590 Function Data Drive (Lower Right) Data Drive (Lower Left) Format Converter Plasma AI Sub-Field Processor Line filter Speaker terminal PC type Input terminal RCA type Input terminal Power supply Power switch Scan out Scan Conn
Video Signal Path Explanation HY/HZ Board Figure 13 The "HY/ HZ" board is equipped with one Component input, one Composite input and one S-Video input. The Composite and S-Video inputs are applied to a switching circuit, which is controlled by the system control IC, located on the D1Board. The switch select command is sent via the SCL3 and SDA3 lines. After signal selection the composite or S-Video signals are amplified, buffered, and applied to a 3D comb filter inside IC3803.
HX Board Figure 14 PC RGB Signals are input to the HX Board. The RGB signals as well as the vertical and horizontal sync signals are amplified by a series of transistor amplifiers. The RS232C communications bus line is also connected on this board. The RS-232C connection is provided so that operation changes can be made via PC. An example of an application of this port would be remote turn on of the unit for a kiosk or similar display.
D1 Board Figure 15 After the input signals are amplified by the HY/HZ and HX boards the desired signal is selected. The microprocessor sends the command via the IIC bus to the input select switch (IC3001). The video switch selects from one of the three inputs. The component video signal output from the video switch is amplified and converted to digital. An optional Digital Visual Interface (DVI) input bypasses the A/D process as DVI information is already in the digital format.
DVI Interface Figure 16 An optional Digital Visual Interface (DVI) module connection is provided on this generation Plasma Display Panels. The DVI interface allows direct digital transfer from a display device to the panel. A VGA or component video signal requires a conversion from the digital to analog and then conversion back to digital prior to input to the Format converter see Figure 17 Figure 17. The double conversion can introduce distortion to the signal.
Figure 18 shows an example of the DVI interface. It permits direct connection of the digital video signal to the Format converter. This bypasses the D/A and A/D process providing the better quality picture. Figure 18 Installation of the DVI interface requires removal of the HY/HZ Board and replacing it with an optional DVI interface board.
Sync Process Figure 19 The vertical and horizontal sync signal paths are slightly different depending on the Source signal. RGB/PC Input Mode Sync The vertical and horizontal sync signals generated by the input device are applied to connector D3 or D2 to a Sync switch (IC3002). IC3002 outputs the vertical and horizontal sync signals. The signals are inverted by IC8002 and then applied to a sync processor (IC9451).
D1 Board Figure 20 D1-board consists of the Analog and Digital signal process. It also contains the Discharge control and Microprocessor control block. Supply voltages of 13.5V, 5V, Standby 5V, 3.3V, and 1.8 V operate the D1-board. The input RGB video signals are at 0.7Vp-p. Video signals in the form of parallel data and the control signals for the data drive circuit are output.
D2 Board Figure 21 The D2 board provides the scan, sustain and data drive signals. The scan pulses are output to the SC board. The sustain pulses are output to the SS board. The data drive signals are output to the C1, C2, C3 and C4 boards. The C1 board drives the Upper right portion of the panel; the C2 board drives the upper left portion. The C3 and C4 boards drive the lower right and left portions of the panel respectively.
D2 Board details Figure 22 The Plasma AI (Adaptive brightness Intensifier) circuits analyze the video program level for the distribution of dark and bright components. The upper and lower eight bit video signals are memorized into two Plasma AI processors IC9651 and IC9601. The Plasma AI circuits converts the 8 bit signal data to 10 bit signal data. The Flash memories contain the algorithms for the AI circuit.
SC Board Explanation Figure 23 25
Figure 24 The SC Board consists of buffers and drivers used to generate the scan signals to the panel. The buffers provide isolation between the D2 board and the drivers. Connector SC20 provides the drive signals (140V, 100V and 18V). Connector SC21 provides trigger signals to switch the FET transistors. The D2 board switches the FETs on and off to create the distinctive scan signal. Each trigger signal switches a drive FET creating a portion of the waveform.
Figure 25 After the scan waveform is developed on the SC Board, it is applied to the SU and SD boards for de-multiplexing. The signal is input to a series of shift registers inside the PDP scan driver IC. Figure 25 shows an example of the demultiplexing circuit. There are six driver ICs on the SU board and six on the SD board.
SS Board Explanation Figure 26 After the video signal is processed on the D2 board, the sustain and erase pulses are output to the SS board. The erase pulse is output at the beginning of each scan period. The pulse is applied to the SS2 and SS3 boards to remove the previous charge for the upper and lower sections of the display panel. The sustain pulses are also developed on the D2 board and are applied after the scan periods.
Figure 27 Figure 28 29
The Sustain pulse is developed using a similar circuit as the Scan Pulse. A series of specifically timed pulses are applied to FET drivers creating the distinctive sustain pulse. The drivers switch the voltages (150V, 155V and 175V) at selected intervals determined by the D2 board. The basic waveform remains constant but the exact number of sustain pulses is determined by the amount of luminance required, see figure 28.
Power Supplies Standby Power Supply Figure 29 The standby power supply provides the necessary DC voltage for the system control Microprocessor, Reset circuit and the EEPROM. D421 rectifies the incoming AC Voltage and applies it to the transformer T402 and the standby B+ control circuit IC400. The output pulses of IC400 are then applied to the primary side of transformer T402.
Main Power Supply Figure 30 Power Factor Control The power factor control circuit operates like a boost regulator. The incoming AC voltage, after being switched on, enters the rectifier D402 where it is converted to DC. The Power Factor Control (PFC) circuit converts the DC level to 400Vdc. The negative side of the bridge rectifier D402 connects to ground via a resistor.
Low Voltage Power supply VCC and Start-up voltage for the low voltage power supply is provided to IC650 of the P5 Board by the standby power supply circuit (not shown). Upon start-up of the switching control circuit, a pulse width modulated signal is output at pin 9 of connector P18/P18A to drive the switching transistor Q416. When Q416 is on, current flows via the primary winding of transformer T401 and Q416. As current flows through the transformer, energy is built up and stored in the transformer.
High Voltage Power Supply Figure 31 The P3-Board contains the drive voltage oscillator circuit that develops the Vsus voltage needed to drive the Scan and Sustain boards. Operation begins with the 18Vdc supply being applied to pin 12 of connector P15. This voltage serves as start up voltage for IC601. Q604, connected to pin 7 and 9 of the IC, provides Oscillation control. The oscillator generates a trapezoid pulse that is input to a PWM circuit (not shown) to control the output voltage.
Over-voltage protection (OVP) is provided via pin 6 of connector P16. This voltage enters pin 4 of IC601 for immediate shutdown of the IC if the Vsus voltage rises to an undesired level. The OVP feedback is also provided to the system control circuit via pin 13 of connector P15 for immediate shutdown of the entire unit. The P7 (High Voltage Protector) and P8 (Low Voltage Protector) circuit boards monitor the DC output of all power supply boards.
Protection Circuits Figure 32 Protection circuits are incorporated in the unit to prevent the failure of a single circuit or component from creating catastrophic damage. The P7 and P8 boards are daughter boards on the P1 main power supply board. The P7 board monitors the Vbk (195V), Vda (75V) and +17V supply voltages. The voltages are fed through individual voltage dividers and the result is compared to a 3.3V reference voltage by a comparator IC750.
the result is compared to a reference voltage. The reference voltage is provided by a zener diode. If the output of the comparator goes high, Q6741 turns on effectively grounding the SOS line. The SC board uses a similar circuit to monitor the +17V line. The SS and SC boards contain an LED indicator to alert the technician when a problem exists. The LED should be lit during normal operation, a dark LED indicates that a problem exists on that board.
Diagnostic Procedures Self Check Display Indication Self-check is used to automatically check the bus line controlled circuits of the Plasma display. To get into the Self-check mode, press and hold the Volume Down button on the front of the unit, then the OFF-TIMER button on the remote control. The graphic in figure 32 should be displayed. Note: In case the H, HY or HZ boards are disconnected, “IC3699 - -” is displayed.
Power LED Flashing timing chart When an abnormality has occurred in the unit, the protection circuit operates and shuts off the power supply. The faulty area can be identified by the number of flashes of the Power LED at the front of the unit.
Diagnostic Flow Charts No Power There are three states of “No Power” indication by the power LED: 1. 2. 3. The power LED does not light up. The power LED is green at power up. It then turns red a few seconds later and blinks on and off. The power LED is red at power up and never changes state. Does the power LED turn on? No Check the P-Board. Yes No Do F900 and F901 measure correctly? Replace the defective component. Yes The F Board is suspected to be defective.
The Power LED is red and blinking on/off. When one or more of the power supply voltages is missing, the red LED blinks on and off. Remove Connector P5 Yes Is the LED still blinking red? No Blinking stops But still no picture Check D1-Board. Remove Connector P1, P2. No Is the Power LED still blinking red? Check the output of the P-Board. Yes Check SS/SC-Boards.
Power LED blinks twice Are the SS board LEDs lit? NO The SS board is suspected to be defective. YES NO Is the SC board LED lit? YES Is the Vda voltage correct? YES The D1 is suspected to be defective. 42 The SC board is suspected to be defective. NO The Power supply is suspected to be defective.
No Picture Flowchart 1 No Is the On screen Display information visible? Yes Is the SC Board LED illuminated? Yes No Is the SS Board LED illuminated? SC Board is probably Yes defective. No Does the problem exist on all inputs? D1 or D2 Board SS Board is is probably probably defective. defective.
No picture Flowchart 2 NO Are the video signals correct at the D1 board input? Reference the HY/HZ and HX board troubleshooting charts YES NO Is the SC board LED lit? The SC board is suspected to be defective. YES Is the TPSC1 Waveform incorrect? NO The D2 Board is suspected to be defective. YES Are the voltages at connectors SC2 and SC23 of the SC board correct? NO The Power Supply is suspected to be defective.
Dark picture Flowchart Are the video signals correct at the D1 board input? NO Reference the HY/HZ and HX board troubleshooting charts YES NO Are the SS board LEDs lit? The SS board is suspected to be defective. YES Is the TPSS1 Waveform incorrect? NO The D2 Board is suspected to be defective. YES Are the voltages at connectors SS11 and SS12 of the SS board correct? NO The Power Supply is suspected to be defective.
Local screen failure The Plasma Display Panel unit may develop a failure, where the symptom is localized in a particular area of the screen. The figure below can help localize the circuit board that is most likely to be defective. In the example in figure 34, one of the two boards, C3 and D2 is likely to be the cause. Figure 34 Service Hints Symptom: No picture (black Screen) v Suggestion: The use of a magnifying glass can help localize the defective printed circuit board.
2. Listen to the buzz noise of the SC board; if the buzz noise is not present, a malfunction of the SC-Board is suspected. Figure 36 Suggestions: Check the Scan pulse waveform at TPSC1. (Use TPSS1 of the SS-board to trigger the oscilloscope.) Verify the input signals at connector SC2, SC4, SC20 and SC21. Verify that the signals of the clock and serial data lines from the D-board are present at connector SC20 and SC21.
Symptom: No picture (black Screen) Figure 38 v Suggestion: The use of a magnifying glass can help localize the defective printed circuit board. Use the magnifying glass to take a close look at the pixels of the screen. If the pixels are faintly lit, the defect is most likely located in one of the following boards: SS Board Figure 39 A) SS-Board B) SS2-Board C) S3-Board 1. Check the status of the LED located on the SS-Board; if the LED is dark, a malfunction of the SS-Board is suspected. 2.
Suggestions: Check the Scan pulse waveform at TPSC1 of the SC-Board. (Use TPSS1 of the SSboard to trigger the oscilloscope.) Proceed to check the power sources at connector SS11, SS12 and SS33. Verify that the clock and serial data lines from the Dboard are present at connector SS33. Note: It is easier to measure input levels at connector C33 of the C3Board instead of connector SS33.
Symptom: Horizontal Black Bar (Completely dark) Note: The use of a magnifying glass can help localize the defective printed circuit board. Use the magnifying glass to take a close look at the pixels in the area of the black bar. 1 If the pixels are totally dark, the defect is most likely located in one of the following boards: a) SC Board b) SU Board (upper half of the screen only) c) SD Board (lower half of the screen only) Figure 41 2.
Symptom: • Vertical Black Bar Suggestion: Since the C2 board contains the serial to parallel converters for the picture data that drive this portion of the screen; the most likely cause for this defect can be localized to the C2-Board or the D2-Board.
v Symptom: Burned image (pattern) is visible. Suggestion: Activate the scroll bar or run the set with a white raster for at least fifteen minutes.
After Image Prevention If a customer has been viewing a 4:3 picture or another stationary pattern for a long period of time it is possible for an after image to be burned into the panel. Advise the customer that operation in 4:3 mode for a long period can cause a permanent image burn, damaging the panel. Use of Just mode or Full mode is recommended if the input video source is 4:3 aspect ratio. Pressing the Aspect button on the remote control selects Just or Full mode.
4. To stop the screen saver, press the R button on the remote control. Figure 50 Side Bar Brightness adjustment This feature allows the customer to adjust the brightness of the non-picture area on either side of the 4:3 image on screen. Figure 51 1. Press the Setup button on the remote control. Figure 52 2. Use the Up/Down arrow buttons to highlight Side bar adjust, then press the action button. Figure 54 Figure 53 3.
Option Setting Accessing the Option Menu 1. Press to display the Setup menu. Figure 56 2. Press to select OSD Language. Figure 57 3. Press the surround button on remote control for more than three seconds. The action menu should be displayed on screen.
Settings the Action Menu 1. Use the Up/Down buttons to select the desired item. 2. Use the Left / Right Buttons to select the desired function The option menu will disappear 60 seconds after the operation. Figure 59 Press the R button to exit the Option Menu. Figure 60 Hidden Option Menu for GPH5D series GPH5D chassis series have special function and operation setting facility that is called “Option Menu”. This Option Menu is useful for special functions that are required by certain customers.
Note: Setting the remote control User Level and Remote ID off. 1. Access service mode (CAT-mode) and press SET UP key on remote. 2. Access the hidden option menu. 3. Change the remote control User Level and/ or Remote ID set to off.
Sample Waveforms HY/HZ board The pages that follow contain samples of waveforms that are present when the unit is in good operating condition. Prior to determining that a board should be replaced, it is advisable that these waveforms are checked to help achieve the right conclusion. VIDEO/YUV CONVERTER Figure 61 Figure 61 is an illustration of the HZ-Board. The board is the interface between the AV inputs and the D1-Board.
The waveforms listed below must be checked at connector H2 of the HZBoard. CN H2, Pin B1 20us/div., 20mV Green Signal Output CN H2, Pin B3 20us/div., 20mV Blue Signal Output CN H2, Pin B5 20us/div., 20mV Red Signal Output CN H2, Pin A6 20us / div., 0.2V Horizontal Output CN H2, Pin A8 5ms /div., 0.2V CN H2, Pin A19 0.1ms/ div., 0.2V Vertical Output SCL3 Note: If any of the signals shown here is missing, this indicates a possible malfunction of the HZ-Board.
The waveforms listed below must be checked at connector H2 of the HZBoard. CN H2, Pin B19 5us/div 20mV Green Signal Input CN H2, Pin B17 5us /div, 20mV Blue Signal input CN H2, Pin A19 0.1ms/div, 0.2V SCL3 CN H2, Pin B15 5us /div, 20mV Red Signal Input CN H2, Pin A20 0.1ms/ div, 0.2V SDA3 Note: A possible malfunction of the HZ-Board may exist if any of the signals listed above is missing. Verify that all DC and I2C inputs to the HZ-Board are present.
HX board Figure 62 Figure 62 is an illustration of the HX-Board. The board is the interface between the PC input and the D1-Board. When troubleshooting, connect a PC to the input terminals and observe the output signals at connector HX1/D3. See the next page for waveform samples.
Note: The signals listed below must be checked at connector HX1 of the HXBoard. CN HX1, Pin B20 10us / div.20mV Red Signal Input CN HX1, Pin B18 10us_20mV Green Signal Input CN HX1, Pin B16 10us/ div, 20mV Blue Signal Input CN HX1, Pin B12 5ms/ div, 0.2V Vertical Drive CN HX1, Pin B14 10us/div, 0.2V Horizontal Drive CN HX1, Pin A4 5us/ div, 20mV Serial Data Note: A possible malfunction of the HX-Board may exist if any of the signals listed on this page is missing.
SC Board Input Signals Figure 63 Figure 63 is an illustration of the SC-Board connection to the remaining boards of the panel. The SC-board is the interface between the D2-Board, SU and the SD Boards. When troubleshooting, connect a fixed video source to any of the input terminals and observe the input signals at connector SS20 and SS21. See the next two pages for waveform samples.
SC Board Waveforms The waveforms listed below must be checked at connector SC20 of the SCBoard. CN SC20, Pin 1 1ms / div, 0.2V CRL CN SC20, Pin 2 1ms / div, 0.2V CEL CN SC20, Pin 3 1ms / div, 0.2V CEH CN SC20, Pin 6 1ms / div, 0.2V CSL CN SC20, Pin 7 1ms / div, 0.2V CSH CN SC20, Pin 8 1ms / div, 0.2V CML CN SC20, Pin 9 1ms / div, 0.2V CMH CN SC20, Pin 10 1ms / div, 0.
The waveforms listed below must be checked at connector SC21 of the SCBoard. CN SC21, Pin 2 1ms / div, 0.2V CL CN SC21, Pin 3 1ms / div, 0.2V CLK CN SC21, Pin 4 1ms / div, 0.2V SIU CN SC21, Pin 6 1ms / div, 0.2V SID CN SC21, Pin 7 1ms / div, 0.2V SCSU CN SC21, Pin 8 1ms / div, 0.2V CPL CN SC21, Pin 9 1ms / div, 0.
SS-Board Input Signals Figure 64 Figure 64 is an illustration of the SS-Board connection to the remaining boards of the panel. The SS-board is the interface between the D2-Board, SS2 and the SS3 Boards. When troubleshooting, connect a fixed video source to any of the input terminals and observe the input signals at connector SS32. See the next page for waveform samples.
SS Board Waveforms The waveforms listed below must be checked at connector SS32 of the SSBoard. CN SS32, Pin 2 1ms / div, 0.2V URH CN SS32, Pin 3 1ms / div, 0.2V UEL CN SS32, Pin 4 1ms / div, 0.2V UEH CN SS32, Pin 5 1ms / div, 0.2V UBL CN SS32, Pin 6 1ms / div, 0.2V USH CN SS32, Pin 7 1ms / div, 0.2V UML CN SS32, Pin 8 1ms / div, 0.2V UMH CN SS32, Pin 10 1ms / div, 0.
PDP Defect Pixel Specification 1. Dead Pixel (pixel is always off) 2. Lit Pixel (pixel is always on) 3. Pair defect (Adjacent pixels defective) 4.
Connector Tables F-BOARD CONNECTORS The following table lists the voltage levels present at each pin of the connectors of the F-Board. Use this information to confirm that the F-Board is operating properly.
P-BOARD CONNECTORS (Continued) Connector P3/SS3 Pin Numbers 1 2 3 4 5 6 7 8 9 10 Signal Name Connector P4/SC4 Pin Numbers 1 2 3 Signal Name Connector P5/D25 Pin Numbers 1 2 3 4 5 6 7 8 Signal Name Connector P6/Z6 Pin Numbers 1 2 3 4 5 6 7 Signal Name Connector P7/D27 Pin Numbers 1 2 3 4 5 6 7 8 9 Signal Name VDA VDA NC +17V GNDa GNDa GNDa GND NC STB PS +17V +17V GNDa 13.5V 13.5V GND GND +5.2V GND FAN CONT GND +13.5V GNDs -13.5V NC GNDs +5.
Connector P10/FAN Pin Numbers 1 2 3 Signal Name Connector P11/FAN Pin Numbers 1 2 3 Signal Name Connector P12/FAN Pin Numbers 1 2 3 Signal Name Connector P13/FAN Pin Numbers 1 2 3 Signal Name Connector P15/P15A Pin Numbers 1 2 3 4 5 6 7 8 9 10 11 12 13 Signal Name Connector P16/P16A Pin Numbers 1 2 3 4 5 6 7 8 FAN +12V GND FAN SOS FAN +12V GND FAN SOS FAN +12V GND FAN SOS FAN +12V GND FAN SOS H. OUT H. OUT GND H. VCC NC NC L. OUT L. DRIVE. GND L. CNT. GND I. SENSE. GND I.
P-BOARD CONNECTORS (Continued) Connector P18/P18A Pin Numbers 1 2 3 4 5 6 7 8 9 10 Signal Name Connector P19/P19A Pin Numbers 1 2 3 4 5 6 7 8 9 10 11 12 Signal Name Connector P22/P22A Pin Numbers 1 2 3 4 5 6 7 8 STOP VCC START NC GATE NC H. GND NC C.L.M. F.B START VCC BACK UP GATE MULTI H. DRIVE. GND H. SIGNAL. GND VRMS IAC TV ON F.B OVP/SOS IN Signal Name 13.5V 5.2V +13.5Vs -13.
HX- BOARD CONNECTORS The following table lists the voltage levels present at each pin of the connectors of the HX-Board. Use this information to confirm that the HX-Board is operating properly.
HY / HZ- BOARD CONNECTORS The following table lists the voltage levels present at each pin of the connectors of the HY or HZ -Board. Use this information to confirm that the HY or HZ-Board is operating properly. Connector H1/D1 Pin Number A-1 A-2 A-3 A-4 A-5 A-6 A-7 A-8 A-9 A-10 A-11 A-12 A-13 A-14 A-15 A-16 A-17 A-18 A-19 A-20 A-21 A-22 A-23 A-24 A-25 Signal Name Voltage Findings Signal Flow (Board or Connector) 9V 9V GND GND 5V 5V GND GND 3.3V 3.
Adjustment Procedures Panel label Information Panel Part Number M MC106W36P4 NO. ************* Vbk: **** V Ve: **** V Panel Production Date Vsus: **** V Vad: **** V Made in Japan *** Figure 65 An example of the panel production date: 1. 7.
+B Set-up • • • Item / Preparation Input a Black & White video signal. Set the picture mode to Normal and the White Balance to Normal Adjustments Adjust and confirm the indicated test point below for the specified voltage. Figure 66 Adjustment table Name PFC Vsus Vda Test Point Voltage P24 pin 1 P1 pin 2 P3 pin 1 Volume 400V ± 1V 175V ± 1V 75.0 ± 0.5V R548 R625 R545 Confirmation Name +18V +13.5V Audio +15V Audio –15V 5.
Driver Set-up Item / Preparation • Input an APL 100 % white signal. • Set the picture mode to Normal and the White Balance to Normal Adjustments To perform the following adjustments, please refer to the panel information label located on the heat sink of the panel. See the next page for more information about the panel label.
Initialization Pulse Adjust Item / Preparation • Input a Crosshatch signal. • Set the picture mode to Normal and the White Balance to Normal Adjustments Adjust the indicated test point for the specified waveform. Use TPSS1 as the trigger source.
P.C.B. (Printed Circuit Board) exchange procedure 1. Caution Wait 1 minute for the electrolytic capacitors to discharge before removing any PCB from the unit. 2. Quick adjustment after P.C.B. exchange P.C.B.
Test Point locations Figure 69 80
Serviceman mode CAT (computer aided test) Mode CAT mode menu CAT Panel sys8.1 IIC Mode CD Mode SD Mode MS Mode ID Mode Mode IIC Function Service Alignment Access Button Action CD (Complete Diagnostics) SD (Status Display) MS Mode ID Software Version Information EEPROM Edit MTBF Parameter Mute More than 5 seconds Action Not used Not used ----------- Remote Control How to access the CAT mode.
CD mode Select the CD mode from the front page of the CAT menu by pressing the Up/Down button on the remote control, and then press the Mute button on the remote control for more than 5 sec. OSD MiCom Software version MiCom Software Version Memory data version D Memory data version D Memory data version H Memory data version H Memory data change Address Memory data change Address Data Data 0.11 OK 0.11 1 8 63 21.
SD Mode Select the SD mode from the front page of the CAT mode by pressing the Up/Down button on the remote control, and then press the Action button on the remote control. OSD History of remote control command (Factory use) Input command Check 23 25 27-- -- -- -- 27 27 27 -- -- -- -- -- -- -- 28 25 25 37 Power Protect MTBF Parameter WT 72 Cumulative time for power on condition.
I2C Menu Structure The values indicated in this flowchart are sampled data.
Alignment Procedures NTSC Panel White Balance Equipment required: NTSC Gray scale pattern Generator, Color Analyzer Panel Settings; Picture = Normal, White Balance = Cool, Aspect Ratio = 16:9 Pattern Display: Figure 71 Step 1 Find the area of Low light closest to 10 cd/m2 using the color sensor. Step 2 Access the Sub Brightness setting and Adjust Sub bright level of this area to exactly 10 cd/m2. Step 3- Access the G cut off setting and Set G cut off to " 80 ".
Pedestal Setting Equipment required: HDTV Component Video Gray scale pattern Generator, PC Video Gray Scale Generator Panel Settings; Picture = Normal, White Balance = Cool, Aspect Ratio = 16:9 Pattern Display: Figure 72 Step 1- Access the R, G and B cutoff settings and set them to “80”. Step 2- Under the Chroma Control setting, Set Gun off to "5" (Only green pixels emitting).
PC/RGB Panel White Balance Equipment required: PC Gray scale pattern Generator, Color Analyzer Panel Settings; Picture = Normal, White Balance = Cool, Aspect Ratio = 16:9 Pattern Display: Figure 73 Step 1 Find the area of Low light closest to 10 cd/m2 using the color sensor. Step 2 Access the Sub Brightness setting and Adjust Sub bright level of this area to exactly 10 cd/m2. Step 3- Access the G cut off setting and Set G cut off to " 80 ".
Step 15- Write down the color temperature of the R, G, B drive and cutoff data into table 3. Table 3 White Balance Cool Normal Warm R Drive G Drive B Drive R Cutoff G Cutoff B Cutoff Step 16- Input a RGB Signal. Step 17- Copy the PC Data R, G, B drive and cutoff data to the RGB settings.
HD /525i /525P Panel White Balance Equipment required: HDTV (720P or 1080I) grayscale pattern Generator, Color Analyzer Panel Settings; Picture = Normal, White Balance = Cool, Aspect Ratio = 16:9 Pattern Display: Figure 74 Step 1 Find the area of Low light closest to 10 cd/m2 using the color sensor. Step 2 Access the Sub Brightness setting and Adjust Sub bright level of this area to exactly 10 cd/m2. Step 3- Access the G cut off setting and Set G cut off to " 80 ".
Step 15- Write down the color temperature of the R, G, B drive and cutoff data into table 5. Table 5 White Balance Cool Normal Warm R Drive G Drive B Drive R Cutoff G Cutoff B Cutoff Step 16- Change the Input signal to 525i and 525p. Step 17- Copy the HD drive and cutoff data to the 525i and 525p settings.
625i Panel White Balance Equipment required: HDTV (625i) grayscale pattern Generator, Color Analyzer Panel Settings; Picture = Normal, White Balance = Cool, Aspect Ratio = 16:9 Pattern Display: Figure 75 Step 1 Find the area of Low light closest to 10 cd/m2 using the color sensor. Step 2 Access the Sub Brightness setting and Adjust Sub bright level of this area to exactly 10 cd/m2. Step 3- Access the G cut off setting and Set G cut off to " 80 ".
Sub Brightness Setting Equipment required: NTSC grayscale pattern Generator Panel Settings; Picture = Normal, Aspect Ratio = 16:9 Pattern Display: Note: Adjust in a Dark room. Step 1- Set the white balance to Cool. Step 2- Access the All cutoff setting in service mode and adjust so that pixel emission starts in the 2% area and there is no emission in the 0% area. Step 3- Write down all cut off data. Step 4- Set the white balance to Normal.
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