HT 1000, MT 2000, MTS 2000, and MTX Series TM TM TM Handie-Talkie® Portable Radios Service Section *6881200C40* 68P81200C40-O Motorola 8000 West Sunrise Boulevard Fort Lauderdale, Florida 33322
HT 1000, MT 2000, MTS 2000, and MTX Series TM TM TM Handie-Talkie® Portable Radios CONTENTS TITLE PAGE LIST OF TABLES.....................................................................................................................................................................iii LIST OF ILLUSTRATIONS ......................................................................................................................................................iii RELATED PUBLICATIONS AVAILABLE SEPARATELY ..
CONTENTS (cont.) TITLE PAGE NUD7070A, NUD7070B, NUD7085A, AND NUD7085B VHF TRANSCEIVER BOARDS’ COMPONENT LOCATION DIAGRAMS AND SCHEMATIC DIAGRAM ............................................................................29 NUD7070A, NUD7070B, NUD7085A, AND NUD7085B VHF TRANSCEIVER BOARDS’ PARTS LIST, AND NUE7213A, NUE7213B, NUE7231B, NUE7240A, AND NUE7240A UHF (403-470MHz) TRANSCEIVER BOARDS’ COMPONENT LOCATION DIAGRAMS .................................................................................
LIST OF TABLES TABLE TITLE 40-1 40-2 40-3 40-4 40-5 40-6 40-7 40-8 40-9 40-10 40-11 40-12 40-13 40-14 40-15 40-16 40-17 40-18 PAGE Recommended Test Equipment ..............................................................................................................2 Service Aids .............................................................................................................................................3 Recommended Service Tools.........................................................
MODEL NUMBERING SYSTEM Typical Model Number: H Position: 1 0 2 1 3 K 4 D 5 H = Hand-Held Portable P 8 W 9 1 10 B 11 N 12 S 13 P 14 0 15 1 16 Position 12 Unique Model Variations C = Cenelec N = Standard Package Positions 2 & 3 - Model Series 336 to 410MHz 403 to 437MHz 438 to 482MHz 470 to 520MHz Product Specific 806 to 870MHz 825 to 870MHz 896 to 941MHz 1.0 to 1.6GHz 1.5 to 2.0GHz Values given represent range only; they are not absolute. Position 5 - Power Level A = 0 to 0.7 Watts B = 0.
LIST OF MODELS CONVENTIONAL SYSTEMS RADIOS HT 1000 Model Family H01KDC9AA1BN H01KDC9AA3BN 2-Freq., 5- to 1-Watt, 136 - 178 MHz 16-Freq., 5- to 1-Watt, 136 - 178 MHz H01RDC9AA1BN H01RDC9AA3BN 2-Freq., 4- to 1-Watt, 403 - 470 MHz 16-Freq., 4- to 1-Watt, 403 - 470 MHz H01SDC9AA1BN H01SDC9AA3BN 2-Freq., 4- to 1-Watt, 450 - 520 MHz 16-Freq., 4- to 1-Watt, 450 - 520 MHz H01UCC6AA1BN H01UCC6AA3BN 2-Freq., 3-Watt, 806 - 870 MHz 16-Freq., 3-Watt, 806 - 870 MHz H01KDD9AA4AN H01KDH9AA7AN 16-Freq.
LIST OF MODELS (cont.
MAINTENANCE SPECIFICATIONS FOR VHF RADIOS (All Specifications Are Per Electronic Industries Association (EIA) 316B Unless Otherwise Noted.) GENERAL FCC Designation: RECEIVER AZ489FT3768 Power Supply: Frequency Range: TRANSMITTER *136–178MHz Nickel-Cadmium Battery Bandwidth: Battery Voltage: Nominal: Range: 7.
MAINTENANCE SPECIFICATIONS FOR 800MHz RADIOS (All Specifications Are Per Electronic Industries Association (EIA) 316B Unless Otherwise Noted.) GENERAL FCC Designation: Power Supply: RECEIVER AZ489FT5747 Frequency Range: TRANSMITTER 851–870MHz RF Power: 3 Watts Nickel-Cadmium Battery Bandwidth: Battery Voltage: Nominal: Range: 7.
SECTION I. INTRODUCTION This manual includes a model chart, specifications, fundamental disassembly/reassembly procedures; and all schematic diagrams, printed circuit board details, flex circuit diagrams, and several parts lists to completely cover the HT 1000, MT 2000, MTS 2000, and MTX series radios. Hereafter, the text will refer collectively to these radios as “this family of radios.
SECTION II. RECOMMENDED AND REQUIRED TEST EQUIPMENT, SERVICE AIDS, AND TOOLS LISTS Table 40-1.
The following table lists service aids recommended for working on this family of radios. These items are available from the Motorola Parts Department. Table 40-2. Service Aids MOTOROLA PART NO.
The following table lists the tools recommended for working on this family of radios; these tools are also available from Motorola. Note that the R-1319A solder/desolder workstation requires the use of some reflow nozzles. The nozzles’ part numbers and general descriptions are listed in the table with the R-1319A. Also note that the R-1070A workstation requires the use of a specific “heat focus head” for each of the components on which this item is used.
SECTION III. TRANSCEIVER PERFORMANCE TESTING (c) Each additional press of SB3 will advance to the next test channel. (refer to Table 40-6), and a corresponding set of tones will indicate the channel. A. General The HT 1000, MT 2000, MTS 2000, and MTX series radios have been prepared to meet published specifications through their manufacturing process, with the use of laboratory-quality test equipment of highest accuracy.
Table 40-6. Test Frequencies, HT 1000 Radios NO. OF BEEPS TEST CHANNEL VHF UHF BAND 1 UHF BAND 2 800 TX #1 136.025 403.100 450.025 806.0125 RX #1 136.075 403.150 450.075 851.0625 TX #2 142.125 424.850 465.225 815.0125 RX #2 142.075 424.900 465.275 860.0625 TX #3 154.225 438.050 475.225 824.9875 RX #3 154.275 438.100 475.275 869.9375 TX #4 160.125 444.050 484.975 851.0125 RX #4 160.175 444.100 485.025 851.0625 TX #5 168.075 456.350 500.275 860.
(l) Press SB3, view “98/1”; release, view “98/0” • • • • • • (m) Keypad: • • • • • • • • Press 0, view “48/1”; release, view “48/0” Press 1, view “49/1”; release, view “49/0” Press 2, view “50/1”; release, view “50/0” Press 3, view “51/1”; release, view “51/0” Press 4, view “52/1”; release, view “52/0” Press 5, view “53/1”; release, view “53/0” Press 6, view “54/1”; release, view “54/0” Press 7, view “55/1”; release, view “55/0” • Press 8, view “56/1”; release, view “56/0” Press 9, view “57/1”; release
Table 40-9. Receiver Performance Checks TEST NAME COMMUNICATIONS ANALYZER RADIO TEST SET COMMENTS Reference Frequency Mode: PWR MON 4th channel test frequency◊ Monitor: Frequency error Input at RF In/Out TEST MODE, 4 CSQ output at antenna PTT to continuous (during the performance check) Frequency error to be ±150Hz Rated Audio Mode: GEN Output level: 1.
Table 40-10. Transmitter Performance Checks TEST NAME COMMUNICATIONS ANALYZER Reference Frequency Mode: PWR MON 4th channel test frequency◊ Monitor: Frequency error Input at rf In/Out. TEST MODE, 4 CSQ PTT to continuous (during the performance check). Frequency error to be < 150Hz. Power RF As above. As above, 4 CSQ As above. Refer to Maintenance Specifications page in front of manual.
IV. ERROR CODE DISPLAYS A. Power-up Display Codes B. Operational Display Codes At power-up, the radio performs cursory tests to determine if its basic electronics and software are in working order. Problems detected during these tests are presented as error codes on the radio display. The presence of an error code should prompt the user that a problem exists and that a service technician should be contacted. During operation, the radio performs dynamic tests to determine if it is working properly.
SECTION V. RADIO ALIGNMENT PROCEDURE A. General procedures for the software. To perform the alignment procedures, the radio must be connected to the PC, RIB (radio interface box), and Universal Test Set as shown in Figure 40-1. An IBM PC (personal computer) and RSS (Radio Service Software) are required to align the radio.
Service Menu F3 F2 Transmitter Alignment Menu F4 Signalling Alignment Menu Receiver Alignment Menu F2 - Reference Oscillator F3 - Tx Power F4 - Tx Dev Balance F5 - Tx Dev Limit F6 - Tx Dev Reference F7 - Tx VCO Crossover F2 - Front End (VHF/UHF) F3 - Rated Audio F4 - Squelch (25/30 kHz) F5 - Squelch (20 kHz) F6 - Squelch (12.5 kHz) F7 - RX VCO Crossover F2 - DTMF F3 - Trunking F4 - MDC 1200 F6 Test Mode Menu Note: F2 = Function Key 2 MAEPF-22857-A Figure 40-2.
Perform the following procedures in the sequence indicated. 8. Press F10 and F2 to return to the RECEIVER menu. B. Reference Oscillator Alignment D. Rated Audio Adjustment of the reference oscillator is critical for proper radio operation. Improper adjustment will not only result in poor operation, but also a misaligned radio that will interfere with other users operating on adjacent channels. For this reason, the reference oscillator should be checked every time the radio is serviced.
6. Press F10, F2, then F10 again to return to the service menu. F. Transmitter Power VHF and UHF radios require two power-level adjustments, a high-power or rated-power adjustment, and a low-power adjustment. The low power adjustment is required since the radio may be used in a reduced power mode, or with a vehicular adapter. NOTE All power measurements are to be made at the antenna port. 1. From the SERVICE menu, press F2 to select TRANSMITTER alignment. 2. Press F3 to select the TRANSMIT POWER softpot.
3. With the meter selector switch (RTX4005B) set to MIC, inject a 1 kHz tone on the AUDIO IN terminal on the test set, 80mVrms as measured on the AC/DC MTR port. 4. Press F6 to key the radio, and use the UP/DOWN arrow keys to adjust the deviation per the values shown in Table 40-16. Table 40-16. Transmit Deviation Limit BAND DEVIATION (KHZ) VHF/UHF/800 MHz 4.30 - 4.60 900 MHz 2.20 - 2.30 5. Press F6 to dekey the radio, and press F8 to program the softpot value.
Trunking High Speed Signalling MDC 1200 1. From the SERVICE menu, press F4 to select SIGNALLING alignment. 1. From the SERVICE menu, press F4 to select SIGNALLING alignment. 2. Press F3 to select the TRUNKING HIGH SPEED softpot. 2. Press F4 to select the MDC softpot. 3. Press F6 to key the radio on the test frequency. The screen will indicate that the radio is transmitting. 4. Measure the TRUNKING HIGH SPEED deviation on your service monitor. 5.
SECTION VI. DISASSEMBLY AND REASSEMBLY B. Disassembly to Board Level ! CAUTION THIS RADIO CONTAINS STATIC-SENSITIVE DEVICES. DO NOT OPEN THE RADIO UNLESS PROPERLY GROUNDED. TAKE THE FOLLOWING PRECAUTIONS WHEN WORKING ON THIS UNIT. 1. Store and transport all complementary metal-oxide semiconductor (CMOS) devices in conductive material so that all exposed leads are shorted together.
5. Separate the front cover assembly from the internal electronics (chassis) (see Figure 40-5). JWB c. 3/4/92 LETTERI REQUIR Lay the chassis down, and rotate the front cover back and partially away from the chassis (see Figure 40-6). Small Flat Blade Screwdriver Chassis Assembly Front Cover Assembly Front Cover/ Display Flex Chassis Assembly Front Cover Assembly MAEPF-22571-O MAEPF-22571-O Figure 40-5. a.
a. Use a small, thin, flat-blade screwdriver (or like instrument) to help raise the sliding portion of the connector approximately 1/8 of an inch from its seated position. A slight prying action, alternating back and forth on the top corners of the connector, achieves the best results for unlocking the connector. 10. Carefully remove the RF board and the controller board from the chassis. NOTE The RF board and the controller board are connected together with a jumper flex.
c. The cover will pop loose from the switch housing. (1) Insert a small, flat-blade screwdriver under the base of the bracket leg near the ring. 3. Push the three switches and the LED out of the switch housing. (2) Lift the bracket leg until it pops loose from under its retaining tab. 4. The remainder of the controls flex is attached to the switch housing with adhesive. Do not remove the flex from the switch housing unless it is absolutely necessary. b.
E. Reassembly Reassembly is the reverse of disassembly. Some suggestions and illustrations are provided to help you more easily reassemble the radio. 1. Keypad/Display Board (front display model radios only) a. If applicable, replace the rubber keypad. b. Place the keypad/display board into the front cover housing at an angle such that the three small slots on the edge of the board slide under the three mating retaining tabs. Ensure that the board slides under the tabs. c.
Plating Reliefs MAEPF-22579-A Misaligned Figure 40-14. Contoured O-ring/ Antenna Bushing Seal MAEPF-22580-O MAEPF-22580-O Figure 40-15. d. Reinstall the rubber controls top seal on the control top. NOTE Two tabs are provided in the emergency button area to help hold the seal in place. 6. Front Cover Assembly to Chassis a. Install the contoured O-ring/antenna bushing seal around the antenna and in the groove provided (see Figure 40-15). b.
SECTION VII. MAINTENANCE A. Introduction This section of the manual describes preventive maintenance, safe handling of CMOS devices, and repair procedures and techniques. Each of these topics provides information vital to the successful operation and maintenance of your radio. B. Preventive Maintenance The HT 1000, MT 2000, MTS 2000, and MTX series radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended. 1.
b. Rigid Circuit Boards c. This family of radios uses bonded, multi-layer, printed circuit boards. Since the inner layers are not accessible, some special considerations are required when soldering and unsoldering components. The printed-through holes may interconnect multiple layers of the printed circuit. Therefore, care should be exercised to avoid pulling the plated circuit out of the hole.
(2) Refer to Figure 40-16 and use a small heatfocus head to distribute heat over the area occupied by the three solder tabs until the solder softens. 3 Solder Tabs Figure 40-16. (3) Carefully lift the RF switch assembly away from the rf board. Notice that the RF switch circuit board remains attached (soldered) to the RF board. (4) Using the same heat-focus head as in step (3), unsolder the RF switch circuit board and remove it from the RF board using forceps.
e. Over-Molded Pad-Array Carrier (OMPAC) ! CAUTION If neighboring OMPAC components are heated above 365 degrees F. (185 degrees C.), they will suffer die-bond delamination and possible “popcorn” failure. During all repair procedures, heating neighboring components can be minimized by: • using upper heat only. • using the correct size heat-focus head, approximately the same size as the carrier being replaced. • keeping the heat focus head approximately 1/8”-1/4” (0.3cm-0.
f. Thin Small Outline Package (TSOP) Components Removing and replacing a TSOP component will be done with the R-1319, using the same procedure used to remove and replace an OMPAC. Place the circuit board in the circuit board holder. Select the proper heat focus head and attach it to the heater chimney. Position the TSOP component under the heat-focus head. Lower the vacuum tip and attach it to the component by turning on the vacuum pump. Lower the focus head until it is approximately 1/8”-1/4” (0.3cm-0.
(215 degrees C) 445 degrees F (230 degrees C) maximum. Apply solder paste to the exposed solder pads under the PA. Place the circuit board in the circuit board holder, and position the RF PA under the heat-focus head. Lower the heat-focus head until it is approximately 1/8”-1/4” (0.3cm-0.6cm) above the PA cover. Turn on the heater and begin the reflow cycle. Heating time should not be less than two minutes.
SCHEMATIC AND CIRCUIT BOARD NOTES * COMPONENT IS FREQUENCY SENSITIVE. REFER TO THE ELECTRICAL PARTS LIST FOR VALUE AND USAGE. 1. UNLESS OTHERWISE STATED, RESISTANCES ARE IN OHMS (k = 1000), AND CAPACITANCES ARE IN PICOFARADS (pF) OR MICROFARADS (uF). 2. DC VOLTAGES ARE MEASURED FROM POINT INDICATED TO CHASSIS GROUND USING A MOTOROLA DC MULTIMETER OR EQUIVALENT. TRANSMITTER MEASUREMENTS SHOULD BE MADE WITH A 1.2 uF CHOKE IN SERIES WITH THE VOLTAGE PROBE TO PREVENT CIRCUIT LOADING. 3.
Electrical Parts List, VHF Transceiver Boards; VHF NUD7070A, NUD7070B NUD7085A, NUD7085B TPLF- 4072-C REFERENCE SYMBOL C4 C6 C7 C8 C9 C11 C12 C13 C14 C15 C16 C31 C33 C34 C35 C36 C38 C39 C40 C41 C42 thru 46 C47 C48 C49 C50 C52 C53 C54 C55 C56, 57 C58 C60 C61 C62 C63 C65 C70 C71 thru 72 C77 C80 C82 thru 84 C85 C86 C87 C88 C90 C95 C96 C97 C98 C99 C101 C102 C103 C104 C105 C106 C107, 108 C109 C111 C112 C113 C115 C116 C118 C121 C123 C125, 126 C128 C129 C130 C132 C133, 135 C139 C140, 141, 146 C147 C148 C149, 150
INSERT SCHEMATIC 63D81200C32-O (100% BLK.
Electrical Parts List, Transceiver Boards; UHF (403-470MHz) NUE7213A, NUE7213B NUE7231A, NUE7231B (MTS 2000 Radios) NUE7240A, NUE7240B REFERENCE SYMBOL C1 C2, 3 C4 C5 C6 C7 C9 C10 C11 C12 C13 C15 C16 C17 C18 C19 C31 C35 C36 C38 C39 C40 C41 C42 thru 46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56, 57 C58 C59 C60 C61 C63, 64 C65 C72 C82 C83 C84 C85 C86, 87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C98 C99 C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C115 C116 C117 C118 C119, 121 C123 MOTOROLA PART
Electrical Parts List, Transceiver Board UHF (450-520MHz) NUE7214A, NUE7214B NUE7232A, NUE7232B MTS 2000 Radios NUE7241A, NUE7241B REFERENCE SYMBOL C1 C2, 3 C4 C5, 6 C7 C9 C10 C11 C12 C13 C15 C16 C17 C18, 19 C31 C35 C36 C38 C39 C40 C41 C42 thru 46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56, 57 C58 C59 C60 C61 C63, 64 C65 C72 C82 C83 C84 C85 C86, 87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C98 C99 C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C115 C116 C117 C118 C119, 121 C123 C125, 126 C127 C128
INSERT SCHEMATIC DIAGRAM 63D81200C33-O (100% BLK.) (OL) DEPF-24645-O (100% RED) R.T.
INSERT SCHEMATIC 63D81200C34-O (100% BLK.
INSERT SCHEMATIC 63D81200C38-O (100% BLK.) (OL) DEPF-24655-O (100% RED) R.T.
Electrical Parts List, Transceiver Board; 800MHz NUF6394A, NUF6394B NUF6410A, NUF6410B NUF6423A, NUF6423B TPLF-4080-C REFERENCE SYMBOL C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C19 C31 C34 C35 C36 C38 C40 C41 C42 thru 45 C46 C47 C48 C49 C52 C53 C54, 55 C56, 57 C58 C60 C61 C62 C65 C72 C82 C83 C84 C85 C87 C88 C89 C90 C91 C92 C95 C96 C98 C101, 102 C103 C104, 105 C106 C107, 108 C109 C110,111, 113 C114 C115 C116 C117, 118 C119 C120 C121 C122,123 C125 C126 C132 C133 C135 C137 C138 C140 C141 C149 C150 C1
Electrical Parts List, Transceiver Board; 900MHz NUF6395B, NUF6395C NUF6424A, NUF6424B TPLF-4081-D REFERENCE SYMBOL C1 C2 C3 C4 C5 C6, 7 C8 C9 C10 C11 C12 C13 C14 C15 C19 C31 C34 C35 C36 C38 C40 C41 C42 thru 45 C46 C47 C48 C49 C52 C53 C54, 55 C56, 57 C58 C60 C61 C62 C65 C72 C82 C83 C84 C85 C87 C88 C89 C90 C91 C92 C95 C96 C98 C101, 102 C103 C104, 105 C106 C107, 108 C109 C110,111, 113 C114 C115 C116 C117, 118 C119 C120 C121 C122,123 C125 C126 C132 C133 C135 C137 C138 C140 C141 C149, 150 C151 C152 C153 C201
INSERT SCHEMATIC 63D81200C42-A (100% BLK.
Electrical Parts List TPLF- 4210-A NTN7089A, Controller (JT 1000 Models Only) NTN7092A, Controller (HT 1000 Models Only) REFERENCE SYMBOL MOTOROLA PART NO.
INSERT SCHEMATIC 63D81200C43-O (100% BLK.
Electrical Parts List NTN7091A/NTN7093A REFERENCE SYMBOL C601 C602, 603, 604 C605, 606 C607 C608 C609, 610 C611, 612 C613 C614 C615 C616 C617 C618 C619 C620 C700 thru 708 C709 C710 C711 C712, 713 C714, 715 C716, 717 C718 C719 C720 C721 C722 C723 C724 C725 C726 C727 C728 C729 C730 C731 C732 C733 C734 C735 thru 738 C739 C740, 741, 742 C743 C744 C745 C746 thru 757 C758 C759, 760, 761 C762 C763, 764 C765 C766 C767 C768 C769 C770 C771 C772 C773 C774, 775 C776 C777 C778 C779 C780 thru 786 C787 C788 thru 791 C792
INSERT SCHEMATIC 63D81200C44-O (100% BLK.
Electrical Parts List NTN7620B Controller REFERENCE SYMBOL MOTOROLA PART NO.
INSERT SCHEMATIC 63D81200C41-A (100% BLK.
Electrical Parts List, Controller TPLF-4206-A NTN7512A Front Display VHF, UHF, and 800MHz Radios NTN7513A Front Display 900MHz Hear Clear Radios NTN7857A Top/No Display VHF, UHF, and 800MHz Radios NTN7858A Top/No Display 900MHz Hear Clear Radios REFERENCE SYMBOL C601 C602, 603, 604 C605, 606 C607 C608 C609, 610 C611, 612 C613 C614 C615 C616 C617 C618 C619 C620 C700 thru 708 C709 C710 C711 C712, 713 C714, 715 C716, 717 C718 C719 C720 C721 C722 C723 C724 C725 C726 C727 C728 C729 C730 C731 C732 C733 C734 C735
INSERT EXPLODED VIEW CEPF-22751-C Keypad Radio Exploded View Parts List ITEM NO. MOTOROLA PART NO.
CLK DATA DC5V LOCK AUX4 AUX3 AUX2 AUX1 U204 CEX MODIN ANODE 1 GND RF DET INT CAP IN U101 GND VMULT 4 VMULT 3 VMULT 2 VMULT 1 FREFOUT DC5 C BIAS CATH 1 V CON TXI1 INT CAP OUT 35U52 X WLYWW REF V VCP ADAPT_SW IADAPT IOUT MODOUT 57W98 X WLYWW A/D BYPASS XTAL 1 XTAL 2 A/D BYPASS ANODE 2 RT BIAS CPBIAS 1 CPBIAS 2 TEST 2 BIAS EN CE* SC4 SC3 DC5V TEST 1 DC5V PVREF PREIN SUPFIN SUPFOUT EXP OUT EXP ADJ GND IC ENAB HI ENAB N FIL IN SC2 EXP IN N FIL OUT R/T 35U50 X WLYWW CLIP REF
OPEN CONTROLLER U710 A15 A14 A13 A12 LHRSTI LHRSTOB PJ7 PJ6 PJ5 PJ4 PJ3 BOOTSTRB PJ2 VDD4 VSS4 ECLK PJ1 PJ0 OEB 4XECLK D3 RWBIN D0 MEMRWB PG0 PD0 PD1 MOSI MISO VDD PD5 PD4 PA7 PA4 PA5 PA6 PA3 PA2 PA0 PA1 OPEN CONTROLLER U705 PG1 PG2 PG3 PG4 PG5 A11 A10 A9 PG6 A8 PG7 IRQ XIRQ 35U47 X WLYWW A7 A6 A5 A4 RESET A3 D7 A2 A1 D6 D5 D4 A0 A1 A2 A0 A3 OVERRIDE POR PK0 A4 SCNEN PL0 VSS1 PE4 SLIC IV P3 57W06 0 TXPG028NP06 VDD1 PK4 PL4 PK3 D3 D2 D1 PE0 D2 RXDIN D6 D5 D1 D4 IRQB HC11RST
NOTES 50
APPENDIX Secure Modules: NTN7279A, NTN7280A, NTN7281A, NTN7282A, and NTN7283A for MTS 2000 Radios NOTE The Secure Module is NOT serviceable. The information contained in this appendix is only meant to help determine whether a problem is due to the Secure Module or the radio itself. I. INTRODUCTION The Secure Module is designed to digitally encrypt and decrypt voice data in Motorola’s MTS 2000 Series Handie-Talkie™ Portable Radios.
Table 1. MTS 2000 Single Key Secure Module I/O Definition SIGNAL NAME CONNECTOR PLUG FUNCTION P1 PIN NUMBER UNSW B+ 1 Unswitched battery voltage Vdd 2 Switched 5 volt supply REF CLK 3 2.1/2.
B. Keyloading Problems Use the following procedure to troubleshoot keyloading problems: 1. Verify that the correct Key Variable Loader (KVL) is being used for the particular encryption algorithm present in the radio. Refer to the following chart: IV. SERVICE AID A cable, Motorola kit number TDN9390A, connects the MTS 2000 radio universal connector to the keyloader. V. RETROFIT INSTRUCTIONS A.
brief description for each parameter. Refer to the RSS manual for general instructions in the use of RSS. 2. Set Secure-Equipped Field The radio must be reprogrammed to utilize the secure module. At the RSS main menu, press F4 for the CHANGE/CREATE/VIEW menu. Press F3 for the Radio Wide Buttons, Switches, Display, Scan, Phone screen. Press F2 for Radio Wide Options screen. Here, press tab to reach the Secure Equipped field. Press up/down arrow keys to select YES. 3.
C. Secure TX Deviation Transmit deviation balance compensation and transmit deviation limit adjustments should be completed before secure deviation is adjusted. Remember to use the new transmit deviation balance procedure outlined in paragraph B before performing the following steps. 1. From the SERVICE menu, press F2 to select TRANSMITTER alignment. 6. Press F6 to dekey the radio. Press F8 to program the softpot value. 7. Press F10 to return to the TRANSMITTER menu. D. Secure RX Discriminator Level 1.
Table 3.
HT 1000, MT 2000, MTS 2000, and MTX Series TM TM TM Handie-Talkie® Portable Radios Service Section *6881200C40* 68P81200C40-O Motorola 8000 West Sunrise Boulevard Fort Lauderdale, Florida 33322
