Separating the Cover From the Chassis | Motorola HT 1000 specs

Small Flat Blade

Screwdriver

Chassis

Assembly

Front Cover

Assembly

MAEPF-22571-O

Figure 5 Separating the Cover From the Chassis

b.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 behind the base of the radio. This prying action forces the thin inner plastic wall toward the base of the radio, which releases the two chassis base tabs.

NOTE: A flexible ribbon cable (front cover/display flex), which connects to the front cover assembly and the chassis, keeps you from completely separating the two units.

c.Lay the chassis down, and rotate the front cover back and partially away from the chassis (see Figure 6).

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Image 53

Motorola HT 1000 service manual Separating the Cover From the Chassis

Contents

HT 1000, JT 1000, MT 2000, MTS 2000, and MTX Series Page Safety Foreword Contents Disassembly and Reassembly Iii Page Replacement Parts Ordering List of Tables Vii Related Publications Available Separately Viii Model Numbering System Model Charts Model Programming Flashing, and Cloning Conventional Systems Radios HT 1000 Models Model Chart H01RDH9PA3AN Conventional Systems Radios JT 1000 and MT 2000 Models PMUF6500D Private Systems Radios MTS 2000 Models A a Xii List of AntennasList of Batteries Xiii Maintenance Specifications for VHF Radios Xiv Maintenance Specifications for 800MHz Radios ALC Glossary Xvi PLL R N I N G IntroductionPage Recommended Test Equipment Recommended Test Equipment Field Programming Service Aids and Recommended Tools Motorola Part no Description Application Service Aids Recommended Service Tools Service Tools Test Mode General SetupEquipment Initial Control Settings Earlier. If the radio is placed in Test Mode NO. Description Function Beeps Test Environments, HT 1000/JT 1000 Radios Test Frequencies, HT 1000 / JT Control Head Test Mode, HT 1000/JT 1000 RadiosPage Page Test Frequencies, MT 2000, MTS 2000, and MTX Series Radios Test Environments, MT 2000, MTS 2000, and MTX Series Radios Test Name Communications Radio Test SET Comments Analyzer Receiver Performance Checks Test Communications Radio Test SET Comments Name Analyzer Transmitter Performance Checks Power-up Display Codes Error-Code DisplaysPower-up Display Codes Operational Display Codes Operational Display Codes General Radio Alignment Procedure Dtmf Reference Oscillator Alignment Perform the following procedures in the sequence indicated Standard Test Modulation 1 kHz Tone Front-End Pre-Selector VHF/UHF onlyRated Audio Squelch Transmitter Power VHF UHF Transmit Power Setting Transmit Deviation Limit Transmit Deviation Limit Transmit Deviation Limit Reference Transceiver Board IdentificationPage TX VCO Crossover Procedure Dtmf Tuning High Speed Signalling Signalling DeviationRX VCO Crossover Procedure MDC Signalling Deviation This Radio Contains STATIC-SENSITIVE Disassembly and Reassembly Removing the Battery Disassembly to Board Level Separating the Cover From the Chassis Rotating the Front Cover Separating Control Top From the Chassis Removing the RF and Controller Boards Disassembly of Control Top Disassembly of Front Cover Assembly Removing the Keypad/Display Board Reassembly Reinstalling the Speaker RetainerMAEPFBracket-22578-A Page Seating the Flex Front Cover Assembly to Chassis Knobs, Antenna, and Battery Preventive Maintenance MaintenanceInspection Cleaning Introduction General Safe Handling of Cmos Devices If neighboring Pbga components are heated SpecificAbove 365 degrees F degrees C., they will Suffer die-bond delamination and possible Solder Tabs Page U t i o n To Replace an Pbga compo- nent Thin Small Outline Package Tsop Components Shields Removing and Replacing To Replace the RF PA To Remove the RF PAPage Exploded Views Refer to electrical parts list transceiver board Top-Display Radios Keypad Radios SHIELD, PA Uni-board RadiosPage Circuit Board Layers Transceiver Controller Schematic and Circuit Board Notes SYN Integrated Circuit Details with Pin-Out Names 35U50 X Wlyww Wlyww Universal Connector Option Select OPT SEL Definition Universal Connector Pin Numbers and Signal Assignments MAEPF-2 Unless stated CAPACITOR, Fixed pF ± 5%Diode See Note Fuse 1-Amp U102 NC NC NC NC CLK Error Feedback5VREG SB+ BATT+ MAEPF-2630 Transistor See Note CAPACITOR, Fixed pF ±30%RESISTOR, Fixed Ω ± 5% 0625W unless stated Connector EXT. ANT SwitchThese Levels Measured by Removing R52 DAC CLK DET VDD VDD2 NC NC NC NC NC CLKCext Batt MAEPF-2630 COIL, RF nH CAPACITOR, Fixed pF ± 25%50V unless stated CR6 CR7 CR8 CR9 RF SwitchABP GND1 GND2 GND3 AG2 GND1 GND2 GND3 GND4 GND5 DET VDD VDD2NC3 NC4 NC5 NC6 NC7 NC8 NC9 VMULT2 Frefout MAEPF-26305 RESISTOR, Fixed Ω ± 0.0625W 3Pack.xls CAPACITOR, Fixed pF ± 5% Sheet Unless stated U105 U104 VCO MOD RAW B+ 5VREG LCKLCK SW B+ SYN SEL Transceiver Board Parts List and Component Location Diagrams Fuse 1.0A Filter See Note 2, 73.35MHZ CAPACITOR, Fixed pF ±5%RESISTOR, FixedΩ ± 5% .0625W unless stated DIODE, Zener See Note 1 U101 GND32 CLK BattGND31 GND30 NUF6499B/C and NUF6502B/C 900MHz Diode U105 GND30 REF OSC SYN SYN SELGND27 GND21 NUF/PMUF6499D 900MHz Electrical Parts List, Transceiver 900MHz NUF/PMUF6499D ANODE2 Pacntl INT CAP Antswbs Switch Reset 5V TX 0V RXGND GND1 GND2 RF Switch To Universal Connector Synthesizer Je di HT/JT Tra ns . DIODE, Zener U701 HearClear OptionHear Clear U702 ResetbU708 Asficsel Intmic Optenable Spkrcom SB+ Intspkr ErrorSpkrcom Aupaen Extspkr Volsense NC3 Extspkrsel NC5 NC6 NC7 NC8 U709U706 Controller BOARD’ Parts List and Component Location Diagram RESISTOR, Fixed Ω ± 5% GND10 GND11 GND12 GND13 Gnda Chact Reset Upclk A3 Clke VDD3 VDD4 GND VEEVccence Enoe Enwe Busy Analog Section SCK Power SectionSPI TX Data Mosi SPI RX Data Miso Vdd Regulator Main Power SwitchVaud Regulator U712 MAEPF-25672 DIODE, Zener See Note 103CAPACITOR, Fixed pF ± Sqdet Chact Univio Pwrrst Sqdet Chact Hiclmpen Compen Lcdis Hcidis FfenIcenab Ffout Cpnenab Expout Ffenab Cbufou VSS4 VSS1 Synsel Roscsel Ascficsel Bootstrp Csgen UV2CS BootstrpScirx Eecs Muxcntl SEL LED Uvcs OPTB+/BOOTSEL Mosi SWB+ GND1 Blcntl Intspkr Reset Spkrcom IntmicGND2 Keyint OPTSEL1 Extspkr Datalatch Extmic NTN7512D/E, NTN7513E, NTN7857D/E and NTN7858D/E 107 MAEPF-26096 HearClear Components Not Placed on NCN6176A 109CAPACITOR, Fixed pF ± 5% 50V unless stated RESISTOR, Fixed Ω ± 0.0625W unless stated Expin Lodsab Cbufin Expbyp Rssiin SWB+ Sqdet ChactFfin VAG Nfilin Ffcnt L U705 Digital Section U702 Main Power Switch Vdd Regulator Front Cover Display Flex Motorola Online Replacement Parts OrderingMail Orders 115 FAX Orders Telephone OrdersParts Identification 116 Appendix a Appendix aIntroduction Circuit Description Appendix . Secure Module Signal Name Connector Plug Function P1 PIN Number Troubleshooting Secure Operations Appendix a . Key Variable Loader Service Aid Retrofit Instructions General Anti-static precautions must be observed at all timesSet Secure-Equipped Field Set XL IC Present Field Enable Secure On Desired Secure Alignment ProcedureSecure Retrofit Tuning Channels Appendix a . Secure Deviation Compensation Removal Removal And Installation Appendix . Secure Module Location Detail XL&XL Appendix a . RSS Secure Parameters Appendix B Appendix BAppendix B . HT 1000 Models H01RDC9AA1BN Appendix B . JT 1000 Models Appendix B . MT 2000 Models PMUE7272B PMCN6147B H01SDH9AA7AN Appendix B . MTS 2000 Models H01RDD9PW1AN H01RDH9PW1AN H01SDH9PW1AN H01UCH6PW1AN PMUF6499D Pmcn Appendix B . MTX Series Models H01KDF9DB5AN H01RDD9DB4AN H01RDH9DB7AN H01SDH9DB7AN H01UCC6DF3AN H01WCC4DB3AN H01WCH4DB7AN Page Motorola, Inc West Sunrise Boulevard Ft. Lauderdale, FL