Motorola HT-1000 - SERVICE Manuel de service

HT 1000™, JT 1000®,MT 2000™, MTS 2000™,and MTX SeriesHandie-Talkie® Portable Radios Service Manual

viList of TablesTable 1 - Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Tabl

78VIEWED FROM SIDE 2CHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKMEDIA &am

79REFERENCESYMBOLMOTOROLAPART NO.DESCRIPTIONCAPACITOR, Fixed: pF ±5%;50V unless statedC1 2311049J23 10uFC2 2113732K15 0.1uFC3 2113741F37 3.3nFC4 21137

80NCNCNC3-POLE FILTER5V5V5V7.4 V RX4.3 V TXCOUPLERNC0V RX5V TX 0V RX0V TX 5V RX0V RX.37V TX 7.5V RX0V TX 5V RX5V TX3.93 VTX 5VRF PAMIXERBUFFER**3-POLE

81NUF/PMUF6500D, NUF/PMUF6533A AND NUF/PMUF6410D (800MHz) TRANSCEIVER BOARDS’ SCHEMATIC DIAGRAM (Sheet 2 of 2)LOCK DETNCGNDGNDRAW B+RAW B+J3015V TX NC

82CHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKMEDIA & COMMUNICATIONS

83Notes:1. For optimum performance, order replacement diodes, transistors, and circuit modules by Motorola part number only.2. When ordering crystals,

84***12TO UNIVERSALCONNECTOREXTERNALANTENNANCNCNC3-POLE FILTER5V5V5V7.4 V RX4.3 V TXCOUPLERNC0V RX5V TX 0V RX0V TX 5V RX0V RX.37V TX 7.5V RX0V TX 5V R

85CLKD1.55V2.5V2.4V3.0V2.4V3.65VDAC SEL2.5Vdc0V5VGNDGNDGNDGND4.7 V4.7 V2.5V16.8 MHz2.8V TX3-11VFLEX P301DAC_SELCLOCK1.65VJ301U205NC16.8 MHzMHzBUFFERLC

86VIEWED FROM SIDE 2CHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKMEDIA &am

87Notes:1. For optimum performance, order replacement diodes, transistors, and circuit modules by Motorola part number only.2. When ordering crystals,

viiRelated PublicationsAvailable SeparatelyService Manual (earliest version radios; first issue- 4/92) . . . . . . . . . . . . . . . . . . . . . . . .

8812TO UNIVERSALCONNECTOREXTERNALANTENNANCNCNC3-POLE FILTER5V5V5V7.4 V RX4.3 V TXCOUPLERNC0V RX5V TX 0V RX0V TX 5V RX0V RX.37V TX 7.5V RX0V TX 5V RX5V

89B+CLKDSYNMHzCLKTx_RF5VREG5VREGDAGC5VREGLO2.1MHz2.1MHzB+B+LCK3.65VDAC SEL2.5Vdc0V5VGNDGNDGNDGND4.7 V4.7 V2.5V16.8 MHz2.8V TX3-11VFLEX P301DAC_SELCLOC

90CHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKMEDIA & COMMUNICATIONS

91Notes:1. For optimum performance, order replacement diodes, transistors, and circuit modules by Motorola part number only.2. When ordering crystals,

92*********MDC TX ONLY*2.5Vdc2.5Vdc3.8VdcVCO MOD ATTENUATOR RATED 200mVpk-pk/kHzPL ONLYMDC ONLYASFICHearClear Option*PL ONLY3.7Vdc200Hz RX MDC ONLY*He

93U702MICRO-PU70568HC711P2********TP45V7.9488 MHz5V UNSQTP1TP3U708TP20V5Vp-p0V SQ**100K**5.0Vdc****1VR7196.2V3216.2VVR71832Q7015V_REGR71410KC752R7174.

94Power SectionDigital SectionAnalog SectionBOARDTX_DATARTSLH_BUSYCTSRFGRN LEDSCK2.1 MHzGNDGNDRAW_B+DATAGNDUNSW B+2GNDEXPANSION BOARD CONNECTORINT_PTT

953.8Vdc UNSQRATED 5.5Vpk-pkAUDIO OUTPUT MAX: 6.5Vpk-pkEXT SPK3.8Vdc UNSQ1800mVrms, RATED AUDIO OUTPUT5V RegulatorAUDIO PAVcc Regulator1.1Vdc900mVpk-p

96CHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKMEDIA & COMMUNICATIONS

97REFERENCESYMBOLMOTOROLAPART NO.DESCRIPTIONCAPACITOR, Fixed: pF ± 5%; 50V unless statedC700 thru C708 2113931F17 470pFC709 2113743A23 0.22µFC710 2311

viiiModel Numbering SystemPosition 1 - Type of UnitH = Hand-Held PortablePositions 2 & 3 - Model SeriesPosition 4 - Frequency BandLess than 29.7MH

98**ASFICNC**C720.01uF.01uFC717C713R7070.1uFR706470C7930.1uF2K4.7uFC7960R77162pFC810470pFC786D1UPCLKVAGCAPE7D8VAGOUTH8VCOATNC2VDDC6VOXOE1XTALINE2XTALO

99UNIV_IO/DVP_WE*OPT_SEL1SLICV 32k X 8 EEPROMEXP_INT2/OPT_TXD256k X 8 FLASH*OPT_B+/BOOT_SELDVP_WE/RTSBOUTKEY/FAILDVP_WE/RTSBINSCI_RX/TDX_OUTDVP_WE/RTS

100Analog SectionDigital SectionPower SectionGND1GNDEXP_SEL2/OPT_CTBSKEY INSERT DATA (KID)LH_DATA/KEY/FAILGND1RESETGND2OPT_B+/BOOT_SELAUX_TX/DVP_WE/RT

101Vdd Regulator*Main Power Switch*NCVaud RegulatorNCAUDIO PA4700pFC73010uFC7310.1uFC73210uFC734 C7330.1uFVR702Q7011uF10V0.33uFC727470pFC726C705C70347

102CHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKMEDIA & COMMUNICATIONS

103Notes:1. For optimum performance, order replacement diodes, transistors, and circuit modules by Motorola part number only.2. “Not Placed” means tha

104NCHearClearASFICC798.01uFC6160.1uF0.1uFC608C808470pFR7062KC779C782C716.01uF470pF.01uFC717.01uFC6143.3uFC7730.1uF3300pFC611C610VaudVaudC602R7070.33u

105U715A(0)32k X 8 SRAM256k X 8 MASK ROMSLICV 32k X 8 EEPROMOPT_B+/BOOT_SELOPT_SEL1DVP_WE/RTSBINSCI_RX/TDX_OUTA(9)A(10)A(11)A(12)A(13)A(14)Vdd VddA(2)

106Power SectionAnalog SectionDigital SectionBUSYVpp/CTSSCI_RX/OPT_TXDATARFBOARDJ301OPT_B+/BOOT_SELMOSIGND3UNSW B+2LH_BUSY/KIDSCI_RX/TDX_OUTGNDGND1SQ

107*NCVaud RegulatorNCAUDIO PAVdd Regulator* Main Power Switch 10VVR701C729C7251uFF5REGE6REGOUTB5VCC1C5VCC21uFNC3C4C3NC4D4NC5D3NC6E4NC7E3NC8D5PLIN

viiModel ChartsModel Programming,Flashing, and CloningFour model charts cover the three families of radios discussed inthis publication: Conventional

108MAEPF-26096MAEPF-26096-OCHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKME

109REFERENCESYMBOLMOTOROLAPART NO.DESCRIPTION3Pack.xls(Sheet 23)CAPACITOR, Fixed: pF ± 5%; 50V unless statedC700 thru 708 2113931F17 470C709 2113743A2

110NCASFICNC470pFHearClearC782C6211uFC717.01uF0.1uFC773SW_B+VaudVaudR77612KC6100.1uFR706R707470C7932K470pF0.1uFVAGOUTD8VCOATNH8VDDC2VOXOC6XTALINE1XTAL

111OPT_B+/BOOT_SELDVP_WE/RTSBOUTKEY/FAILDVP_WE/RTSBINSCI_RX/TDX_OUTDVP_WE/RTSBOUT32k X 8 SRAM1MEG X 8 FLASHEXP_SEL2/OPT_CTBSLH_ BUSY/KIDEXP_SEL2/OPT_C

112Power SectionAnalog SectionDigital SectionGND1FLEXGND1GNDDVP_WE/RTSBOUTEXP_INT2/OPT_TXDEXP_SEL2/OPT_CTBSSCI_RX/TDX_OUTLH_BUSY/KIDASFIC MIC AUD outN

113*NCVaud RegulatorNCAUDIO PAVdd Regulator*Main Power Switch10VVR701C729C7251uFF5REGE6REGOUTB5VCC1C5VCC21uFNC3C4C3NC4D4NC5D3NC6E4NC7E3NC8D5PLIND6PLOU

114MODE13564312LCD SELMOS1TO J703 ON CONTROLLER BOARD*EXT PTT10111000S4036789*MAN DOWNJ403VOL SWMODELED RED LED GREENCR400BCR400AP703CONTROLS FLEXNCTO

115Replacement Parts Ordering10Introduction When ordering replacement parts or equipment information, the complete identification number should be inc

116Telephone Orders Call telephone orders to the following numbers:Radio Products Services Division*(United States and Canada)7:00 AM to 7:00 PM (Cent

Appendix A- 1Appendix A11Secure Modules: NTN7279A, NTN7280A, NTN7281A, NTN7282A, and NTN7283A for MTS 2000 RadiosNOTE: The Secure Module is NOT servi

viiiNUD7085E / NUD7085F / NUD7091A / NUD7091B / Transceiver BoardNUD7095B / PMUD7095B NUD7070E / NUD7070F / NUD7092A / NUD7092B Transceiver BoardNUD70

Appendix A- 2SPI bus consists of five signal lines. Refer to Appendix Table 1 for the signal information. A communications failure between the host pr

Appendix A- 3Troubleshooting Secure OperationsRefer to Section 6 of this radio service manual for disassembly and reassembly information, refer to Sec

Appendix A- 42. 2.Connect the KVL to the radio via the TDN9390A keyloader cable. When the cable is connected to the radio, the radio should enter the

Appendix A- 5enable the secure options by updating the codeplug, and how to tune the radio for optimum secure performance.Physical Retrofit of Secure

Appendix A- 6Enable Secure On Desired ChannelsTo actually use the secure option, Secure must be enabled on the channels for which it is desired. A cha

Appendix A- 7with the additional tuning for secure TX deviation and secure RX discriminator level tuning.Transmit Deviation Balance (Compensation)When

Appendix A- 8level at the radio standard antenna port to 1mV (-47dBm) modulated with 3.0 kHz FM deviation of a 1 kHz tone.12.Use the UP/DOWN arrow key

Appendix A- 9Appendix Figure 2. Secure Module Location Detail

Appendix A- 10Appendix A Table 4. RSS Secure ParametersParameterDefault PossibleSettingsRadio Wide/Per ChannelUsed in Conv/TrunkDescriptionSecure Equ

Appendix B- 1Appendix B12Model History TablesThe following five tables include all of the HT 1000, JT 1000, MT 2000, MTS 2000, and MTX Series models

ixNote: This model chart lists the model numbers and their respective major components of allconventional systems radios covered in this publication.A

Appendix B- 2H01RDC9AA1BN UHF B1 2-F Closed 4-1W NUE7240B NTN7092B NUE7240D NCN6129B D64WH01RDC9AA1CN UHF B1 2-F Closed 4-1W NUE7240C NCN6129A NUE7240

Appendix B- 3H01SDC9AA3DN UHF B2 16-F Closed 4-1W NUE7268B NCN6140C NUE7268B NCN6140C F91P-3H01SDC9AA3DN UHF B2 16-F Closed 4-1W NUE7273B NCN6140C NUE

Appendix B- 4H01SDH9PA3AN UHF B2 16-Ch Front Display PMUE7273B NCN6146A NUE7273B NCN6146AAppendix B Table 3. MT 2000 ModelsModel Number Description X

Appendix B- 5H01RDD9AA4AN UHF B1 48-F OpenTop Display 4-1WNUE7231C NTN7091D NUE7231C NCN6147A D64WH01RDD9AA4AN UHF B1 48-F OpenTop Display 4-1WNUE7272

Appendix B- 6H01SDH9AA7AN UHF B2 16-ChFront Display 4-1WNUE7214A NTN7091A NUE7232C NCN6147A D64WH01SDH9AA7AN UHF B2 16-ChFront Display 4-1WNUE7214B NT

Appendix B- 7Appendix B Table 4. MTS 2000 ModelsModel Number Description Xcvr Bd Ctrl BdReplacementsXcvr Bd Ctrl BdCodeplugH01KDD9PW1AN VHF 3-SYS/Zon

Appendix B- 8H01KDH9PW1BN VHF 16-Mode Front DisplayFull Keypad 5-1WNUD7070C NTN7620D NUD7070E NCN6150A D64WH01KDH9PW1BN VHF 16-Mode Front DisplayFull

Appendix B- 9H01RDF9PW1BN UHF B1 16-Mode Front Display Limited Keypad 4-1WNUE7272B NCN6150B NUE7272B NCN6150B F91P-3H01RDF9PW1BN UHF B1 16-Mode Front

Appendix B- 10H01SDF9PW1BN UHF B2 16-Mode Front Display Limited Keypad 4-1WNUE7273A NCN6150A NUE7273B NCN6150A F91P-3H01SDF9PW1BN UHF B2 16-Mode Front

Appendix B- 11H01UCF6PW1BN 800MHz 16-Mode Front Display Limited Keypad 3WNUF6410B NTN7620D NUF6410B NCN6150A D64WH01UCF6PW1BN 800MHz 16-Mode Front Dis

xH01KDD9PW1BN VHF, 16-Mode, Top Display, 5- to 1-WattH01KDF9PW1BN VHF, 160-Mode, Front Display, Limited Keypad, 5- to 1-WattH01KDH9PW1BN VHF, 160-Mode

Appendix B- 12H01WCD4PW1CN 900MHz 16-Mode Top Display2.4W (Typ.), 2.9W (Max.)NUF6499D NCN 6153B NUF6499D NCN 6153B F91P-3H01WCD4PW1CN 900MHz 16-Mode T

Appendix B- 13H01WCH4PW1CN 900MHz 16-Mode Front Display Full Keypad2.4W (Typ.), 2.9W (Max.)NUF6499D NCN 6153B NUF6499D NCN 6153B F91P-3H01WCH4PW1CN 90

Appendix B- 14H01KDF9DB5AN MTX838 VHF 160-Mode Trunked 5-1WNUD7085A NTN7512A NUD7085E NCN6147A D64WH01KDF9DB5AN MTX838 VHF 160-Mode Trunked 5-1WNUD708

Appendix B- 15H01RDC9DB3AN MTX838 UHF B1 16-Mode Closed Trunked 4-1WNUE7240C NTN7857D NUE7240D NCN6147A D64WH01RDC9DB3AN MTX838 UHF B1 16-Mode Closed

Appendix B- 16H01RDF9DB5AN MTX838 UHF B1 160-Mode Front Display Limited Keypad Trunked 4-1WNUE7274B NCN6147B NUE7274B NCN6147B F91P-3H01RDF9DB5AN MTX8

Appendix B- 17H01SDD9DB4AN MTX838 UHF B2 99-ModeTop Display Trunked 4-1WNUE7241C NTN7857D NUE7241D NCN6147A D64WH01SDD9DB4AN MTX838 UHF B2 99-ModeTop

Appendix B- 18H01UCC6DF3AN MTX838 800MHz 16-Mode Trunked Type II 3WNUF6423A NTN7857A NUF6423B NCN6147A D64WH01UCC6DF3AN MTX838 800MHz 16-Mode Trunked

Appendix B- 19H01UCH6DB7AN MTX8000 800MHz 160-Mode Front Display Full Keypad Trunked 3WNUF6501B NCN6147A NUF6501B NCN6147A F91P-3H01UCH6DB7AN MTX8000

Appendix B- 20H01WCF4DB5AN MTX9000 900MHz 160-Mode Front Display Limited Keypad Trunked2.4W (Typ.), 2.9W (Max.)NUF6502B NCN6153A NUF6502B NCN6153A F91

xiMTX 838H01KDC9DB3AN VHF, 16-Mode, 5- to 1-WattH01KDD9DB4AN VHF, 99-Mode, Top Display, 5- to 1-WattH01KDF9DB5AN VHF, 160-Mode, Front Display, Limited

6881200C75-B*6881200C75*MOTOROLA and the Stylized M Logo are registered inthe U.S. Patent and Trademark Office. All other product orservice names are

xiiList of AntennasNAD6566* Helical (136 - 151MHz)NAD6567* Helical (151 - 162MHz)NAD6568* Helical (162 - 174MHz)NAD6563* Helical Wideband (136 - 174MH

xiiiFCC Designation: AZ489FT3768Power Supply: Nickel-Cadmium BatteryBattery Voltage:Nominal: 7.5 VoltsRange: 6 to 9 VoltsBattery Drain, Typical:S

xivMaintenance Specifications for 800MHz Radios(All Specifications Are Per Electronic Industries Association (EIA) 316B Unless Otherwise Noted.)RF Pow

xvGlossaryA/D Analog to Digital converter; converts an instantaneous dc voltage level to acorresponding digital value.ALC Automatic Level Control; a c

xviPLL Phase-Locked Loop; a circuit in which an oscillator is kept in phase with areference, usually after passing through a frequency divider.PTT Pus

1Introduction1This manual includes safety information, model charts, specifications, fundamental disassembly/reassembly procedures; schematic diagrams

2 Notes

3Test Equipment,Service Aids, and Tools 2Recommended Test EquipmentThe list of equipment contained in Table 1 includes all of the standard test equipm

4Service Aids and Recommended ToolsRefer to the “Service Aids” in Table 2 and “Recommended Service Tools” list in Table 3 for a listing and descriptio

5The following table lists service aids recommended for working on this family of radios. These items are available from Radio Products Services Divis

6Service Tools The following table lists the tools recommended for working on this family of radios; these tools are also available from Motorola. The

7TransceiverPerformance Testing 3General The HT 1000, JT 1000, MT 2000, MTS 2000, and MTX series radios have been prepared to meet published specifica

Safety 1© 2003, 2001, 1998 by Motorola, Inc.Commercial, Government and Industrial Solutions Sector8000 W. Sunrise BoulevardFort Lauderdale, Florida 33

8with Option•Mate interface plug enabled through the HT 1000 RSS, TX and RX audio will be muted. Do not test Analog Voice Security (AVS) installed rad

9Control Head Test Mode, HT 1000/JT 1000 RadiosTo check the buttons and the switches, perform the following tests:1. Turn radio on.2. After the self t

10clockwise. The loudness of tone beeps will increase and decrease accordingly.NOTE: During test mode, the volume level is not regulated to the same l

115. Release the orange button; ”3/0” appears, which indicates that switch 3 is in the open condition.6. Press the orange button again; “3/1” appears,

12Table 7 Test Environments, MT 2000, MTS 2000, and MTX Series RadiosNO. OF BEEPS DISPLAY DESCRIPTION FUNCTION1* CSQ Carrier Squelch RX: unsquelch if

13Table 9 Receiver Performance ChecksTEST NAMECOMMUNICATIONSANALYZERRADIO TEST SET COMMENTSReferenceFrequencyMode: PWR MON4th channel test frequency◊M

14Table 10 Transmitter Performance ChecksTESTNAMECOMMUNICATIONSANALYZERRADIO TEST SET COMMENTSReferenceFrequencyMode: PWR MON 4th channel test frequen

15Error-CodeDisplays 4Power-up Display CodesAt power-up, the radio performs cursory tests to determine if its basic electronics and software are in wo

16Operational Display CodesDuring operation, the radio performs dynamic tests to determine if it is working properly. Problems detected during these t

17Radio Alignment Procedure 5General An IBM PC (personal computer) and Radio Service Software (RSS) are required to align the radio. Refer to the appl

Foreword The information contained in this manual relates to all HT 1000™, JT1000®, MT 2000™, MTS 2000™, and MTX Series Handie-Talkie® portable radios

18All service and tuning procedures are performed from the SERVICE menu, which is selected by pressing F2 from the MAIN MENU. Figure 2 illustrates how

19Each SERVICE screen provides the capability to increase or decrease the ‘softpot’ value with the keyboard UP/DOWN arrow keys respectively. A graphic

20Front-EndPre-Selector(VHF/UHF only)NOTE: This procedure is only required for tuning the front-end filter varactors in the VHF and UHF models. The 80

218. Select the Hear Clear RATED AUDIO softpot, and adjust the UP/DOWN arrow keys to obtain rated audio (3.74 Vrms) into a speaker (28 ohms) or equiva

22TransmitDeviation Balance (Compensation)Compensation alignment balances the modulation sensitivity of the VCO and reference modulation (synthesizer

239. Repeat steps 3 through 8 for the remaining test frequencies.10.Press F10 to return to the TRANSMIT menu.NOTE: The step size change for step 5 is

244. Press F6 to dekey the radio, and press F8 to program the softpot value.5. Press F10 to return to the TRANSMIT menu.VCO Crossover FrequencyNOTE: T

25VCO varactors (CR201, 202, and 203) in “C” and later kits are not interchangeable with VCO varactors in earlier kits; Motorola parts and part number

26Since the transmit crossover frequency has changed, whenever transmit VCO crossover alignment (an RSS function) is performed, UHF band split and cir

27RX VCO CrossoverProcedure1. From the SERVICE menu, press F3 to select RECEIVER alignment.2. Press F5 to select the RECEIVE VCO CROSSOVER softpot. Th

iContentsList of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

286. Press F6 again to dekey the radio.7. Press F8 to program the softpot value; press F10 to return to the SIGNALLING menu.MDC 1200 1. From the SERV

29Disassembly and Reassembly 6!C a u t i o nTHIS RADIO CONTAINS STATIC-SENSITIVE DEVICES. DO NOT OPEN THE RADIO UNLESS PROPERLY GROUNDED. TAKE THE FOL

30General Since this product disassembles and reassembles without the use of any screws, it is important for the technician to pay particular attentio

31b. Pry the bottom of the chassis free from the cover by pushing the separation tool down and rotating the handle of the separation tool over and beh

326. Disconnect the front cover display flex from the connector on the chassis.NOTE: A special locking connector secures the flex to the chassis (see

33NOTE: A large portion of the controls flex is attached to the large metal shield (front shield) with adhesive. Do not remove the controls flex from

34NOTE: The RF board and the controller board are connected together with a stiff connector strip (P301/P704. See Figure 9.Disassembly of Control Top1

354. 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 a

36replacing the microphone, leave the microphone in the boot.4. Remove, if necessary, and replace the sound dampening pad.5. As necessary, replace the

372. Press the rubber microphone boot into its respective recessed area in the front cover housing. The little rubber flap in the back of the rubber b

iiFront-EndPre-Selector VHF/UHF only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Rated Audio .

385. On top display model radios only, seat the display board by inserting the two display board tabs into their mating slots in the front cover housi

39are raised enough to see plating under them, then the flex is not fully seated.5. Reinstall the rubber controls top seal on the control top.NOTE: Tw

40cover clip and the chassis.With the top of the chassis fully seated, lower the bottom of the chassis and press it into the front cover assembly unti

41Maintenance7Introduction This section of the manual describes preventive maintenance, safe handling of CMOS devices, and repair procedures and techn

42Alcohol is a high-wetting liquid and can carry contamination into unwanted places if an excessive quantity is used. Make sure that controls or tunab

43work for shorts due to solder bridges. When removing modules with metal enclosures, be sure to desolder the enclosure ground tabs as well as the mod

44Jumper Flex (on radios shipped prior to 7/94)Jumper flexes are not available. They are replaced with connectors as described in paragraph “a” of thi

45plastic switch housing to ensure that it has not warped due to overheating.2. While holding the RF switch bracket firmly against the RF board:• VHF

46During all repair procedures, heating neighboring components can be minimized by:• using upper heat only.• using the correct size heat-focus head, a

47To Replace an PBGA compo-nent, the solder pads on the board must first be cleaned of all solder to ensure alignment of the new chip carrier. Prepare

iiiNUE7265B, NUE7266B, NUE/PMUE7272B, AND NUE7274B UHF (403-470MHz) TRANSCEIVER BOARDS’ SCHEMATIC DIAGRAM (Sheet 2 of 2) . . . . . . . . . . . . . . .

48Once the part is off, turn off the heat, grab the part with a pair of tweezers, and turn off the vacuum pump. Prepare the circuit board for the new

49reflow, and may inadvertently move. Be careful when performing the following procedure.Refer to Figure 17 for RF PA nomenclature.To Remove the RF PA

50the heater and begin the reflow cycle. Heating time should not be less than two minutes.Once the RF PA reflows, raise the heat-focus head and wait a

51Exploded Views8There are several models in this family of radios: HT 1000, JT 1000, MT 2000, MTS 2000, and MTX Series radios.The exploded view diagr

52Basic Radios and Basic Radios with Option Mate Optional Front CoverITEMNO.MOTOROLAPART NO.DESCRIPTION1 4505896U01 LEVER, PTT2 3205902U01 SEAL, PTT,

53Top-Display RadiosITEMNO.MOTOROLAPART NO.DESCRIPTION1 4505896U01 LEVER, PTT2 3205902U01 SEAL, PTT, and ACTUATOR for S404, S405, S406, and S4083 1505

54Keypad RadiosITEMNO.MOTOROLA PART NO.DESCRIPTION1 4505896U01 LEVER, PTT2 3205902U01 SEAL, PTT, and ACTUATOR for S404, S405, S406, and S4083A3B150563

55Uni-board RadiosITEMNO.MOTOROLAPART NO.DESCRIPTION1 4505896U01 LEVER, PTT2 3205902U01 SEAL, PTT, and ACTUATOR for S404, S405, S406, and S4083 150562

56Notes

57Component Location Diagrams, Parts Lists, and Schematic Diagrams 9IntroductionGeneral Transceiver components and controller components reside on sep

ivNCN6129C, NCN6138A, NCN6140A/B, NCN/PMCN6140C, NCN6141A, NCN6145A/C, NCN6146A, NTN7089C AND PMCN6140C CONTROLLER BOARD ANALOG SECTION SCHEMATIC DIAG

58from the overall schematic. The following two notes are general and apply to all schematic and circuit board applications.1. Unless otherwise stated

59 TX 5VTHERMINT CAP OUTREF VV CONC BIASCATH 1TXI1TXI1TXI1ANODE 2RT BIASRX 1TXI2CATH 2MAEPF-24670-AINT CAP INRF DETGNDANODE 1RX 5VBIAS ENBIASB+2JEDI/V

60U705, MICROCOMPUTER Open ControllerCHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROG

61Universal Connector Pin Numbers and Signal AssignmentsUniversal Connector Option Select (OPT SEL) DefinitionFROM P402RF GROUNDRF HOTOPTION SELECT 1E

62CHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKMEDIA & COMMUNICATIONS

63REFERENCESYMBOLMOTOROLAPART NO.DESCRIPTIONCAPACITOR, Fixed: pF ± 5% 50V unless statedC4 2113931F13 330C6 2113930F22 6.2 ± 0.25pFC7 2113930F13 2.7 ±

64U1RF AMPLIFIERU102D/A ICU101TX ALC IC156MHz6.7Vdc (RX)5V REGP4012.3Vdc5VdcNC2-49dBm*0Vdc (RX)5Vdc (TX)0Vdc (RX)FREQRX RF VOLTAGES IN dBm ARE MEASURE

65SYNTHESIZERU204ZIFU3U201VCO BUFFERU203REF OSC16.8 MHzC310C284C280GNDGND0V5V2.0Vdc-37dBm (RX) (NOTE 4)1.5Vdc1.8Vdc typical5V0V1.6Vdc-31dBm (NOTE

66O.K. AS ISO.K. AS MARKEISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKMEDIA & COMMUNICATIONS DEPT.DWG. NO.LETTERING

67Notes:1. For optimum performance, order replacement diodes, transistors, and circuit modules by Motorola part number only.2. When ordering crystals,

v10 - Replacement Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115Introduction

68U102D/A ICP.A.U10585Y10COUPLERU104U1RF AMPLIFIERU101TX ALC IC6.7Vdc (RX)0.5Vdc-22dBm (RX)*0Vdc (TX)0.1Vdc (TX)NCNC5Vdc (TX)0Vdc (RX)1Vdc0.4Vdc (RX)(

6916.8 MHzREF OSCU203U201VCO BUFFERSYNTHESIZERU204ZIFU3LOCK_DETRSSI 9.2(TX)Vdc @ 520MHz 7.7(RX)Vdc @ 520MHz 7.4(TX)Vdc @ 512MHzUNLOCK=0V-9dBm 5V REG4.

70NUE7267B, NUE7268B, NUE/PMUE7273B, AND NUE7275B UHF (450-520MHz)TRANSCEIVER BOARDS’ PARTS LIST AND COMPONENT LOCATION DIAGRAMSO.K. AS ISO.K. AS MARK

71Notes:1. For optimum performance, order replacement diodes, transistors, and circuit modules by Motorola part number only.2. When ordering crystals,

72U101TX ALC ICU1RF AMPLIFIERU102D/A ICP.A.U10585Y11COUPLERU1040Vdc (RX)6.5Vdc (TX)0Vdc (RX)2.8Vdc (TX)************** OF THE RF MILLIVOLTMETER &

73ZIFU3SYNTHESIZERU204U201VCO BUFFER16.8 MHzREF OSCU203DISCNCSW_B+*3.4VdcREF_OSC_SELDAC_SEL0V OR 5Vdc UNLOCK3.8Vdc -23dBm1200mVpp1.2Vdc1.7Vdc2.5Vdc1.9

74CHECKONEO.K. AS ISO.K. AS MARKED( )( )ISS.REVISIONRLSE.CORRECTEDASMARKEDILLUSTRATOR DATEENGINEERDATE PROGRAM DISKMEDIA & COMMUNICATIONS

75REFERENCESYMBOLMOTOROLAPART NO.DESCRIPTION3Pack.xls(Sheet 2)CAPACITOR, Fixed: pF ± 5%; 50V unless statedC1 2311049J23 10uFC2 2113932K15 0.1uFC3 2113

7612TO UNIVERSALCONNECTOREXTERNALANTENNANCNCNC3-POLE FILTER5V5V5V7.4 V RX4.3 V TXCOUPLERNC0V RX5V TX 0V RX0V TX 5V RX0V RX.37V TX 7.5V RX0V TX 5V RX5V

774.7 VNC13 V2.5VdcNCNC5V0V RXNC0V5V*16.8 MHzGNDGNDGNDGNDGNDRAW B+RAW B+J3015V TX NC4.7 VOTHERWISE LOCKVCOREF OSC5V REGSYNTHESIZERFRACTN ICIF ICNC0V2.