1. Manuals
  2. Brands
  3. Motorola Manuals
  4. Radio
  5. MCS 2000
  6. Service instructions manual

Motorola MCS 2000 Service Instructions Manual

Hide thumbs Also See for MCS 2000:
Table of Contents

Advertisement

Quick Links

See also: User Manual , Instruction and Service Manual
MCS 2000 Mobile Radio
Service Instructions
Volume 2d
900-MHz Frequency Range Specific
© 1998 by Motorola, Inc., Radio Network Solutions Group
8000 West Sunrise Boulevard
Ft. Lauderdale, FL 33322
68P81080C44-B, Issued 5/98

Advertisement

Table of Contents
loading

Related Manuals for Motorola MCS 2000

Summary of Contents for Motorola MCS 2000

  • Page 1 MCS 2000 Mobile Radio Service Instructions Volume 2d 900-MHz Frequency Range Specific © 1998 by Motorola, Inc., Radio Network Solutions Group 8000 West Sunrise Boulevard Ft. Lauderdale, FL 33322 68P81080C44-B, Issued 5/98...

  • Page 2: Safety Information

    Safety Information Every radio, when transmitting, radiates energy into the atmosphere which may, under certain conditions, cause the generation of a spark. All users of vehicles fitted with radios should be aware of the following warnings: Do not operate radio near flammable liquids or in the vicinity of explosive devices.
  • Page 3 W A R N I N G Motorola recommends the following radio installation precautions and vehicle braking system test procedures to ensure that the radio, when transmitting, does not interfere with operation of the vehicle braking system.
  • Page 4 transmission selector to DRIVE. Press brake pedal just far enough to stop vehicle motion completely. Key radio transmitter. Verify that vehicle does not start to move while microphone is NOT being spoken into. Repeat step 5. except do so while microphone IS being spoken into. Release brake pedal completely and accelerate vehicle to a speed between 15 and 25 miles/25 and 40 kilometers per hour.

  • Page 5: List Of Effective Pages

    LIST OF EFFECTIVE PAGES MCS 2000 Mobile Radio Service Instructions Volume 2d 900-MHz Frequency Range Specific Information Motorola Publication Number 68P81080C44-B I ssue Dates of Original and Revised Pages are: Revision O: March 1996 Revision A: November 1996 Revision B: May 1998...
  • Page 6 NOTES Revision B, 5/98...

  • Page 7: Table Of Contents

    Table of Contents - Safety Information ..........Safety 0 - List of Effective Pages .
  • Page 8 List of Figures/List of Tables Figure 1. 900-MHz Radio Functional Block Diagram ........7 Figure 2.

  • Page 9: 1- Introduction

    MCS 2000 Radio, and the Motorola publication numbers for those manuals. Hereafter in this manual, the MCS 2000 Radio is referred to as the radio. The specific hardware portions of the radio covered in this volume of the service manual are as follows: •...
  • Page 10 (a printed circuit board with components mounted), which is called the transceiver board. The transceiver board in each version of the radio is identified by a unique Motorola kit number (e.g., FLF5591A). The kit number varies according to the RF output power level of the radio (12-Watts or 30-Watts) and also according to whether or not the radio is data capable.

  • Page 11: Table 1. Transceiver Board Kit Numbers V.s. Service Manual Page Numbers For Specific Information

    Refer to Refer to Service Service FUF5752A 8486005J01 Manual Manual Data Capable Issue P1 Volume 1 Volume 1 FLF5952A 8408497Y01 Motorola Motorola Data Capable Issue P2 Publication Publication 68P81083C20 68P81083C20 FLF5606A 8408597Y01 Data Capable Issue P2 HUF1190A 8404416P05 Not Data...
  • Page 12 Table 1: Transceiver Board Kit Numbers v.s. Service Manual Page Numbers for Specific Information (Continued) Receiver Back End (Page No.) Synthesizer (Page No.) Power Amplifier (PA) (Page No.) Printed Circuit Board Parts List Parts List Parts List Power Trouble Trouble Trouble Number (PCB) Part...
  • Page 13 Theory of Operation This chapter provides theory of operation information for the radio. It starts with a block diagram level functional description of the entire radio. This is followed by a detailed functional description for each of the four major functions of the radio. Introduction The radio is composed of the following four major functions: •...

  • Page 14: Block Diagram Level Theory Of Operation

    The component location diagrams, parts lists, and schematic diagrams for the controller section of the transceiver board and for the three types of control heads are located in Volume 1 of this service manual. The component location diagrams, parts lists, and schematic diagrams for the other five physical sections of the transceiver board are located in this volume (Volume 2d).

  • Page 15: Figure 1. 900-Mhz Radio Functional Block Diagram

    RECEIVER P/O CONTROLLER SECTION (NOTE 1) LOUDSPEAKER RECEIVER RECEIVER AUDIO 73.35 MHz AUDIO RECEIVE 73.35 MHz RECEIVER RECEIVER AUDIO RECEIVER RECEIVER IF RF SIGNAL AUDIO BACK END SIGNAL FRONT END AMPLIFIER POWER SECTION SQUELCH FILTER SECTION SECTION AMPLIFIER (ZERO IF) (ASFIC) AUDIO PA FIRST...
  • Page 16 The controller generates the audio PA enable signal based on such variables as the level of the received signal, the frequency channel, and the operating mode of the radio. When the audio PA enable signal is generated, the audio power amplifier (PA) is activated and passes the receiver audio signal to the loudspeaker.

  • Page 17: Receiver Detailed Functional Description

    Receiver The portion of the receiver function that is not part of the controller section of the radio is composed of three sections: receiver front end; Detailed Functional receiver If, and receiver back end. Description Receiver Front End The following discussion is based on the schematic diagram for the receiver front end section on page 37.
  • Page 18 connector J6400 and jumper plug J6401 to the input of the receiver back end section. Receiver IF The following discussion is based on the schematic diagram for the receiver IF section on page 41. (Kits FLF5604A, FUF5752A, FLF5952A, The IF output signal (IF_OUT) from the receiver front end section FLF5606A) enters the receiver IF section as IF_IN and passes into three automatic gain control (AGC)/attenuator stages.
  • Page 19 The third attenuator stage formed by CR6255 and CR6256 is optional and is bypassed by R6357 with C6366 and R6350 not being placed. Receiver Back End The following discussion is based on the schematic diagram for the receiver back end section: page 43 for kits FLF5591A, B, C and (All Kits) FLF5592A, B, C;...

  • Page 20: Transmitter Detailed Functional Description

    Transmitter The transmitter function of the radio is distributed between the controller, the synthesizer, and the transmitter power amplifier (PA) Detailed Functional sections. This is shown on the overall functional block diagram for the Description radio, Figure 1. The portion of the transmitter function physically located in the controller section is described in the Controller Section Theory of Operation located in Volume 1 of this service manual.
  • Page 21 The output of U6501 goes to the antenna switch. The antenna switch is switched by the keyed 9.1 voltage. In the transmit mode, the keyed K9.1 voltage is high. In kits FLF5591A, B, C and FLF5604A, the high K9.1 voltage turns on diodes CR6502, CR6503, and CR7504. When CR6502 is turned on, it forms a low impedance to the RF transmit path and allows the signal to pass through.
  • Page 22 30-Watt Power Amplifier The following discussion is based on the schematic diagram for the 30- Watt power amplifier (PA) on page 53 for kits FLF5592A, B, C, (Kits FLF5592A, B, C; FUF5752A, and HUF1191A, and on page 55 for kit FLF5606A. FUF5752A;...

  • Page 23: Synthesizer Detailed Functional Description

    A forward power detector follows the harmonic filter. This forward power detector is a microstrip printed circuit, which couples a small amount of the forward power going out of the radio to diode CR2 where it is rectified. This rectified signal forms a voltage that is proportional to forward power out of the radio.
  • Page 24 The RX VCO U6712 (861 - 867 MHz frequency range) provides the first LO injection frequency for the receiver, which is 73.35 MHz below the carrier frequency. The RX VCO is selected by setting pin 7 high on U6712. The TX VCO U6711 (896 - 941 MHz frequency range) provides the transmit frequency in conventional mode and the transmit frequencies in talk around mode.

  • Page 25: Controller Detailed Functional Description

    The phase locked loop is frequency modulated by the transmit audio signal from the controller section. To accomplish this, the audio signal from the controller section is applied to pin 5 of fractional-N synthesizer IC U6702. An A/D converter in the fractional-N synthesizer IC converts the analog modulating signal into a digital code, which is applied to a loop divider.
  • Page 26 NOTES Theory of Operation Revision B, 5/98...

  • Page 27: Troubleshooting

    (i.e., controller, power control, and control heads) are provided in Volume 1 of this Service Manual, Motorola Publication Number 68P81083C20.) Section 3-2 provides a replacement procedure for the RF power Output transistor (Q6505) used only in the 30-Watt version of the radio.
  • Page 28 • Thermal compound, Motorola Part No. 111022D23 • Transistor assembly tool, Motorola Part No. 0186126F01, Motorola kit No. FLN9037A • Thermal pad for heatsink block B6501, Motorola part number 7508184K01 Disassembly of Radio 1. Remove transceiver board from radio chassis following procedure provided in Volume 1 of this service manual, Motorola Publication 68P81083C20.
  • Page 29 1. Place a small spot of flux on each of the six transceiver-board pads to which the flanges of transistor are to be soldered. Transistor 2. Insert the narrow-diameter side of a spacer, Motorola Part Number 4380545K01, into each of the two transistor mounting holes in transceiver board.
  • Page 30 flange of transistor. 1. Ensure that both capacitors C6567 and C6568 are correct replacement type by verifying that Motorola Part Number is 2113742B23, value is 12pF, and marking is C1. In next two steps, to avoid damage to...
  • Page 31 • Audio PA module U0203 • +5V regulator U0500 • +9.3V voltage regulator U0501 3. Place a new thermal pad, Motorola Part No. 7508184K01, on heat sink block B6501. 4. Install transceiver board into radio chassis following procedure provided in Volume 1 of this service manual, Motorola Publication 68P81083C20.
  • Page 32 NOTES Troubleshooting and Repair Revision B, 5/98...
  • Page 33 Receiver Front End Troubleshooting Chart #5 START +6dBm Check R6292 thru R6294 on R6292 +2.8V Check U6251 -34dBm DC on T6251-3, DC Circuit on C6285 U6251 Replace Check U6251 -44dBm -35dBm FL6251 RF Circuit on T6251-3 on C6282 On Q6271 -53dBm Check Q6271 B=0.7VDC &...
  • Page 34 START GOTO 6000mvpp Distortion Controller 1 KHz on on C6398 Chart 1-5 (Note 4) C6398 <3% DC on RF Sym RF Sym ~ ~ -22dBm Replace on Q6388-B U6201 OK on C6203 on C6203 U6201 (Note 2) (Note 2) (Note 3) Replace ~ ~ -10dBm Check...
  • Page 35 START Audio GOTO Mod on Controller TP6800 Chart 1-4 (Note 1) 212mV Replace on C6732 U6702 NOTE: 1. Chart 1-4 is located in Volume 1 of this service manual. Check Synthesizer Loop Filter MAEPF-25114-A Troubleshooting Chart 2d-3 Synthesizer Deviation Revision B, 5/98...
  • Page 36 START Replace 2.1 MHz R6730 R6730 16.8 MHz 16.8 MHz Check U6704-10 C6717 C6717, R6701 Replace Replace U6704 U6704-13 U6702 Replace L6706 L6706 Check C6757 thru U6705-2 C6761, L6703 9.3V Replace Check C6724, U6705-1 U6705 C6725, C6805, L6701 MAEPF-25115-O Troubleshooting Chart 2d-4 Synthesizer Pendulum Oscillator Revision B, 5/98...
  • Page 37 START Check C6701 Circuit 1.05 SW Replace 12.5-13.5V on C6714, U6702 CR6701-1 C6713 8.5V Rise 3-4V Replace Pulse on from 0 to 4V on on C6831 U6702 U6708-2 Q6711-B Replace Replace -7dBm 11dBm 8-8.5V 0dBm U6711 Q6711, Q6708 on Q6710-C on U6703-5 on C6756 on C6768...
  • Page 38 MEDIA & COMM DESCRIPTION DWG. NO. Renegade Troubleshooting Chart ILLUSTRATOR DATE EDITOR DATE ISSUE 11/7/95 11/10/95 Synthesizer No Transmitter Injection Signal Troubleshooting Chart #7C START Check Q6701, on Q6701-E Q6702 DC Circuit Check Q6703, on Q6703-E Q6704 DC Circuit Check Lineup RF Path MAEPF-25117-O Troubleshooting Chart 2d-6...
  • Page 39 START Indicates a Indicates No K9.1V PA RF Section Fault Synth Check CR6501, 9.3V K9.1 ENB in U6501 Light Control Q6506, Q6501 Q0552, Q0553 = 5V >2dBm ~2dBm = ~0 U6501 GOTO Check Q6503, GOTO GOTO Synthesizer PA_dis Fail Voltages OK Controller R6520, Q6502, Controller...
  • Page 40 START Indicates a Indicates No K9.1V PA RF Section Fault Synth Check CR6501, 9.3V K9.1 ENB in U6501 Light Control Q6506, Q6501 Q0552, Q0553 = 5V >2dBm ~2dBm = ~0 U6501 GOTO GOTO Check Q6503, GOTO Synthesizer PA_dis Fail Voltages OK Controller Controller R6520, Q6502,...

  • Page 41: Reference Drawings

    Synthesizer Component Locations and Parts List - Page 56 Synthesizer Schematic Diagram - Page 57 Refer to Volume 1 of this service manual (Motorola Publication 68P81083C20) for reference drawings for the controller, power control, and control head portions of the radio.

  • Page 42: Figure 2 Transceiver Board Section Locations

    Refer to the SECURENET Option service manual (Motorola Publication 68P81083C25) for reference drawings for the secure option for the radio. CONTROLLER CONTROLLER AUDIO AND POWER COMMON REGULATION RECEIVER RECEIVER BACK END SYNTHESIZER RECEIVER FRONT END TRANSMITTER PA MAEPF-25079-O Figure 2 Transceiver Board Section Locations...
  • Page 43 NOTES Revision B, 5/98 Reference Drawings...
  • Page 44 RECEIVER FRONT END COMPONENT LOCATIONS RECEIVER FRONT END PARTS LIST REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NUMBER REFERENCE MOTOROLA DESCRIPTION R6285 0662057A29 SYMBOL PART NUMBER R6286 0662057A65 4.7K CAPACITORS: R6287 0662057A57 2.2K C6251 2113740F41 39pF R6291 0662057A13 C6252 2113740F41 39pF R6292...
  • Page 45 RF_REG_5V K9.1 R6250 Q6250 C6285 T6253 T6251 AUX_OUT 39pF 25.1TRANSFOR 4.1BALUN_TR 2.4V DC AUX_IN 5V DC C6251 U6251 C6252 39pF 39pF 5V DC Ga_As_MIX 2.4V DC R6272 C6286 6.8k C6295 330pF .01uF R6271 C6271 C6296 IF_OUT C6272 C6273 C6297 22nF 0.1uF 39pF 0.1uF...
  • Page 46 RECEIVER IF COMPONENT LOCATIONS RECEIVER IF PARTS LIST REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NUMBER REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NUMBER R6387 0662057A41 R6388 0662057A18 CAPACITORS: R6389 0662057A29 C6376 2113741F49 0.01uF R6391 0662057B47 C6377 2113740F37 27pF R6392 0662057A01 C6378 2113740F22 6.2pF...
  • Page 47 IF1-2-15 IF_V_OUT IF4-4-2 IF3-2-9 R6382 R6381 C6395 C6383 R6384 39pF .01uF IF5-3-2 RF_REG_5V IF4-4-8 J6400 (NOTE 3) J6401 Q6382 3906L IF5-4-4 R6403 R6383 L6380 C6384 1.0uH .01uF IF3-4-8 R6385 3.3k R6386 5V_V_OUT C6385 .01uF 5V_V_D_IN C6387 C6386 C6388 C6391 R6389 R6387 R6388 CRYS_73.35MHz/25KHz...
  • Page 48 RECEIVER IF COMPONENT LOCATIONS RECEIVER IF PARTS LIST REFERENCE MOTOROLA REFERENCE MOTOROLA DESCRIPTION DESCRIPTION REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NUMBER SYMBOL PART NUMBER SYMBOL PART NUMBER L6380 2462587T30 1000nH SH6330 2602660J02 AGC Circuit CAPACITORS: L6381 2462587T22 390nH SH6340 2602660J02 AGC Circuit...
  • Page 49 IF5_3_2_CB2B IF4_4_2_CB2B IF1_2_15_CB2B R6342 R6343 9.3V C6362 3.9k R6382 R6381 C6383 C6395 IF5_4_4_CB2B IF3_4_8_CB2B IF4_4_8_CB2B R6384 R6344 39pF 0.01uF 6.8NF R6359 RF_REG_5V R6358 R6345 150k 110k Q6382 (NOTE 1) (NOTE 2) C6352 3906L C6353 L6375 470pF 470pF R6383 L6380 C6384 U6202 R6360 1.0UH...
  • Page 50 RECEIVER BACK END COMPONENT LOCATIONS RECEIVER BACK END PARTS LIST REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NUMBER REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NUMBER TRANSISTORS: Q6201 4882022N70 CAPACITORS: Q6203 4882022N70 C6201 2113743K15 0.1uF C6202 2113740F51 100pF RESISTORS: C6203 2113743K15 0.1uF R6201 0662057A89...
  • Page 51 #3,#4 RF_REG_5V C6245 0.1uF C6229 R6216 L6205 C6209 C6223 10uF 560nH R6221 0.1uF 0.1uF R6223 CR6203 C6202 C6249 C6247 SMBV1032LTI L6208 100pF R6222 0.1uF C6246 0.1uF C6211 L6207 CR6204 C6225 100nF 270nH R6212 0.1uF C6248 C6250 R6219 R6220 2.0V DC 33pF 33pF 4.7k...
  • Page 52 RECEIVER BACK END COMPONENT LOCATIONS REFERENCE MOTOROLA RECEIVER BACK END PARTS LIST DESCRIPTION SYMBOL PART NUMBER L6205 REFERENCE MOTOROLA C6201 R6209 0662057A53 1.5K DESCRIPTION SYMBOL PART NUMBER R6210 0662057B47 0 Ohm C6230 C6205 C6202 R6216 R6211 0662057A84 CAPACITORS: R6212 0662057A73...
  • Page 53 IF3_4_8_CB2A RF_REG_5V TABLE 1: 800/900MHz COMPONENT DIFFERENCES C6245 R6221 C6229 0.1uF C6209 SEE TABLE 1 L6205 R6216 10uF C6223 0.1uF 800 MHz COMPONENT 900 MHz 560nH 0.1uF R6224 C6226 R6223 C6205 220pF R6226 0.22uF 3.3nF 0.022uF C6211 C6202 C6249 C6247 100pF 0.1uF 0.01uF...
  • Page 54 RECEIVER BACK END COMPONENT LOCATIONS RECEIVER BACK END PARTS LIST REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NUMBER REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NUMBER TRANSISTORS: Q6201 4882022N70 CAPACITORS: Q6203 4882022N70 C6201 2113743K15 0.1uF C6202 2113740F51 100pF RESISTORS: C6203 2113743K15 0.1uF R6201 0662057A89...
  • Page 55 #3,#4 RF_REG_5V C6245 0.1uF C6229 R6216 L6205 C6209 C6223 10uF 560nH R6221 0.1uF 0.1uF R6223 CR6203 C6202 C6249 C6247 SMBV1032LTI L6208 100pF R6222 C6226 0.1uF R6226 NOTE B NOTE C C6246 0.1uF 0.22uF L6207 CR6204 C6225 C6211 270nH NOTE A R6212 3.3 nF 0.1uF...
  • Page 56 12-WATT POWER AMPLIFIER COMPONENT LOCATIONS JUMPER MBEPF-25088-O HEAVY COMPONENTS SIDE LIGHT COMPONENTS SIDE REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA DESCRIPTION DESCRIPTION DESCRIPTION DESCRIPTION SYMBOL PART NUMBER SYMBOL PART NUMBER SYMBOL PART NUMBER SYMBOL PART NUMBER MBEPF-25087-O PRINTED CIRCUIT...
  • Page 57 CR6509 C6549 .01uF C6550 L6516 L6517 Q6506 R6515 .01uF 68nH 68nH IF9-3-2 3.3k IF9-2-7 L6503 VFORWARD PA_CNTL 68nH C6533 C6529 C6535 39pF 39pF R6514 39pF 3.3k C6507 C6504 C6526 10pF .01uF 39pF R6506 C6506 U6501 39pF 0198220028 R6502 RF-INPUT RF-OUTPUT CR6506 +DC1 +DC2...
  • Page 58 CR7504 C6536 R7539 L6509 R6534 R6512 R6533 R6508 R6519 MAEPF-26326-O J6501 LIGHT COMPONENTS SIDE J6502 HEAVY COMPONENTS SIDE MAEPF-26325-O REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA DESCRIPTION DESCRIPTION DESCRIPTION SYMBOL PART NUMBER SYMBOL PART NUMBER SYMBOL PART NUMBER DIODES: L6516 2462587T13...
  • Page 59 TP_IF_IN1 L6515 IF9_2_8_CB3 IF9_3_3_CB3 IF9_3_1_CB3 68nH VDRIVE TP_IF_IN2 TP_IF_IN2 NOTE A R6555 C6537 R6519 C6534 800MHz 900MHz 39pF 39pF MOTOROLA MOTOROLA SYMBOL TP_IF_IN1 PART NO. VALUE PART NO. VALUE U6502 IF9_2_10 RHOM_FMC_2 C6502 2113740F20 5.1pF 2113740F15 3.3pF TA_EN C6523 2113740F29...
  • Page 60 30-WATT POWER AMPLIFIER PARTS LIST REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA DESCRIPTION DESCRIPTION DESCRIPTION SYMBOL PART NUMBER SYMBOL PART NUMBER SYMBOL PART NUMBER C6552 2311049A08 L6522 2460591R53 82nH 30-WATT POWER AMPLIFIER COMPONENT LOCATIONS MISCELLANEOUS PARTS: C6553 2311049A08 L6523 2460591R53 82nH...
  • Page 61 K9.1* C6550 C6557 0.1uF 39pF SH6510 SHIELD H6502 L6517 Q6506 HARMONIC-FILTER HYBRID PZT2222AT1 PA_CNTRL 5102830B01 68nH L6503 C6549 C6533 1000pF 39pF 68nH MATCHING HYBRID C6504 C6507 39pF .01uF MRF847 C6543P C6568 Note A C6525 L6512 U6501 18pF C6541 RF_POWER_TRANS C6540P 1000pF 23.75nH H6501...
  • Page 62 30-WATT POWER AMPLIFIER PARTS LIST REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA DESCRIPTION DESCRIPTION DESCRIPTION SYMBOL PART NUMBER SYMBOL PART NUMBER SYMBOL PART NUMBER C6550 2113741F49 0.01uF L6517 2462587T13 68nH 30-WATT POWER AMPLIFIER COMPONENT LOCATIONS MISCELLANEOUS PARTS: C6551 2113741F49 0.01uF L6518...
  • Page 63 39pF R6520 R6555 SHUNT NOTE A NOTE A 2 AUX_OUT CR6508 C6552 C6548 800MHz 900MHz C6566 R7534 C6519 MR2835S AUX_IN MOTOROLA MOTOROLA 39pF PART NO. VALUE PART NO. VALUE 0.1uF .01uF SYMBOL CR6503 C6523 C6520 C6502 2113740F20 5.1pF 2113740F15 3.3pF...
  • Page 64 REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA SYNTHESIZER PARTS LIST DESCRIPTION DESCRIPTION DESCRIPTION SYMBOL PART NO. SYMBOL PART NO. SYMBOL PART NO. REFERENCE MOTOROLA DESCRIPTION C6780 2113740F41 39pF RESISTORS: SHIELDS: SYNTHESIZER COMPONENT LOCATIONS SYMBOL PART NO. R0900 0662057B47 C6781 2113740F41 39pF...
  • Page 65 C6702 22nF C6716 22nF C6783 0.1uF (NOTE A) AUDIO_MOD C6830 L6709 0.1uF 1.0uH SYNT_SEL 5V DC LOCK_DET C6816 1000pF U6711 RF_OUT R6765 VCO_TX_TA_800 100k C6831 39pF C6769 C6770 C6808 39pF CR6701 Q6711 0.1uF 4.7uF L6705 12-13.5V DC NPN-1 1.0uH C6740 C6806 C6807 C6712...
  • Page 66 NOTES Thi d d i h F M k 4 0 3...

  • Page 67: Table 2. Schematic Diagrams Interconnection List

    Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title RX_IN Receiver Front End 68P81080C44-B RX_IN Power Amplifier 68P81080C44-B LO_INJ Receiver Front End 68P81080C44-B LO_INJ Synthesizer 68P81080C44-B IF_OUT Receiver Front End 68P81080C44-B...
  • Page 68 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title IF1-3-7 Receiver IF 68P81080C44-B IF1-3-5 Receiver IF 68P81080C44-B See List of Common Voltages and Signals at End of This Table IF4-3-1 Receiver IF 68P81080C44-B...
  • Page 69 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title AUDIO_MOD Controller, ASFIC/Audio Block 68P81083C20-B Diagram/Main Controller SYN_SEL IF1-3-10 Receiver IF 68P81080C44-B SYN_SEL Controller/Main Controller 68P81083C20-B SYN_SEL IF4-3-4 Receiver IF 68P81080C44-B...
  • Page 70 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title DISC Controller, ASFIC/Audio Block 68P81083C20-B Diagram/Main Controller DISC IF3-3-4 Receiver IF 68P81080C44-B DISC Controller, Hear Clear/Audio Block 68P81083C20-B Diagram/Main Controller DISC...
  • Page 71 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title SQUELCH Receiver Back End 68P81080C44-B SQUELCH IF1-2-17 Receiver IF 68P81080C44-B SQUELCH IF3-2-16 Receiver IF 68P81080C44-B SQUELCH_IN Controller, ASFIC/Audio Block 68P81083C20-B Diagram/Main Controller DISC...
  • Page 72 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title VDRIVE Power Amplifier 68P81080C44-B VDRIVE Controller, Power Control/Main 68P81083C20-B Controller TA_EN Power Amplifier 68P81080C44-B Power Amplifier 68P81080C44-B See List of Common Voltages and Signals at End of This Table CURRENT_...
  • Page 73 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title SYN_SEL Controller/Main Controller 68P81083C20-B LOCK_DET Synthesizer 68P81080C44-B LOCK_DET Controller/Main Controller 68P81083C20-B LOCK_DET IF1-3-11 Receiver IF 68P81080C44-B LOCK_DET IF4-4-3 Receiver IF 68P81080C44-B...
  • Page 74 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title VSUM Controller, Power Control/ 68P81083C20-B VSUM Audio PA & Voltage Regulators 68P81083C20-B Main Controller Controller, Power Control/ 68P81083C20-B See List of Common Voltages and MainController...
  • Page 75 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title PA_CNTL Controller, Power Control/ 68P81083C20-B PA_CNTL Power Amplifier 68P81080C44-B MainController TEMP Controller, Power Control/ 68P81083C20-B TEMP Controller/Main Controller 68P81083C20-B MainController RX_CNTL1...
  • Page 76 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title Audio PA &Voltage Regulators 68P81083C20-B See List of Common Voltages and Signals at End of This Table B+_ON_OFF Audio PA &Voltage Regulators/ 68P81083C20-B...
  • Page 77 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title AUX_RX_IN2 Controller, ASFIC/Audio Block 68P81083C20-B AUX_RX_IN2 J0403-12 Controller Interface 68P81083C20-B Diagram/Main Controller/Con- troller Interface AUX_RX_IN3 Controller, ASFIC/Audio Block 68P81083C20-B AUX_RX_IN3 J0408-9...
  • Page 78 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title LG_DTMF Controller, ASFIC/Audio Block 68P81083C20-B LG_DTMF Controller/Main Controller 68P81083C20-B Diagram/Main Controller ASFIC_SEL Controller, ASFIC/Audio Block 68P81083C20-B ASFIC_SEL Controller/Main Controller 68P81083C20-B Diagram/Main Controller...
  • Page 79 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title TX_IN Controller, ASFIC/Audio Block 68P81083C20-B TX_IN Controller, Hear Clear/Audio Block 68P81083C20-B Diagram/Main Controller Diagram/Main Controller RSSI Controller, ASFIC/Audio Block 68P81083C20-B See List of Common Voltages and Diagram/Main Controller...
  • Page 80 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title ASFIC_PRE- Controller, ASFIC/Audio Block 68P81083C20-B ASFIC_PRE- J0401-7, 68P81083C20-B EMP_OUT Diagram/Main Controller EMP_OUT J0408-7 AUDIO_MOD Controller, ASFIC/Audio Block 68P81083C20-B AUDIO_MOD IF1-2-12...
  • Page 81 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title FF_EN Controller, Hear Clear/audio 68P81083C20-B FF_EN Controller, ASFIC/Audio Block 68P81083C20-B Block Diagram/Main Controller Diagram/Main Controller HI_CLMP_EN Controller, Hear Clear/Audio 68P81083C20-B HI_CLMP_EN Controller, ASFIC/Audio Block...
  • Page 82 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title RX_IN Controller, Hear Clear/Audio 68P81083C20-B RX_IN Controller, ASFIC/Audio Block 68P81083C20-B Block Diagram/Main Controller Diagram/Main Controller TX_IN Controller, Hear Clear/Audio 68P81083C20-B TX_IN Controller, ASFIC/Audio Block...
  • Page 83 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title MIC_VOLTAGE Controller, Emergency Ignition/ 68P81083C20-B MIC_VOLTAGE Controller, ASFIC/Audio Block 68P81083C20-B Controller Interface/Main Con- Diagram/Main Controller troller MIC_IN Controller, Emergency Ignition/ 68P81083C20-B MIC_IN...
  • Page 84 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title B+_IGNITION Controller, Emergency Ignition/ 68P81083C20-B B+_IGNITION Audio PA & Voltage Regulators/ 68P81083C20-B Controller Interface/Main Con- Controller Interface troller Controller, Emergency Ignition/ 68P81083C20-B...
  • Page 85 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title RESET J0405-3 Controller Interface 68P81083C20-B (Via Short- ing Resistor R0125) SCI_RX Controller, SCI Drivers/Control- 68P81083C20-B SCI_RX Controller/Main Controller 68P81083C20-B ler Interface/Main Controller SCI_ECHO...
  • Page 86 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title VPP_PRO Controller/Main Controller 68P81083C20-B GRAM OUT3 Controller, IO Buffers/Controller 68P81083C20-B OUT_3 Controller/Main Controller 68P81083C20-B Interface/Main Controller Controller, IO Buffers/Controller 68P81083C20-B J0403-20 Controller Interface...
  • Page 87 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title SW_B+ Controller, IO Buffers/Controller 68P81083C20-B See List of Common Voltages and Interface/Main Controller Signals at End of This Table Controller, IO Buffers/Controller 68P81083C20-B See List of Common Voltages and...
  • Page 88 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title JABBA_SEL Controller/Main Controller 68P81083C20-B O:JABBA_SEL_ J0401-21, Controller Interface 68P81083C20-B C:DTMF_SEL J0408-21 PWR_RANGE Controller/Main Controller 68P81083C20-B PWR_RANGE Controller, Power Control/Main 68P81083C20-B Controller DA_SEL...
  • Page 89 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title LOCK_DET Synthesizer 68P81080C44-B IN_3 Controller/Main Controller 68P81083C20-B Controller, IO Buffers/Controller 68P81083C20-B Interface/Main Controller IN_4 Controller/Main Controller 68P81083C20-B Controller, IO Buffers/Controller 68P81083C20-B Interface/Main Controller...
  • Page 90 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title IN_5 Controller/Main Controller 68P81083C20-B Controller, IO Buffers/Controller 68P81083C20-B Interface/Main Controller CH_ACT Controller/Main Controller 68P81083C20-B CH_ACT Controller, ASFIC/Audio Block 68P81083C20-B Diagram/Main Controller IN_2...
  • Page 91 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title SPI_TX_DATA Controller/Main Controller 68P81083C20-B See List of Common Voltages and Signals at End of This Table Controller/Main Controller 68P81083C20-B See List of Common Voltages and Signals at End of This Table...
  • Page 92 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title J0403-21 Controller Interface 68P81083C20-B Controller/Main Controller 68P81083C20-B See List of Common Voltages and Signals at End of This Table SW_5V:RX_ Controller Interface 68P81083C20-B...
  • Page 93 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title Audio PA & Voltage Regulators 68P81083C20-B Controller, Emergency Ignition 68P81083C20-B Controller, IO Buffers 68P81083C20-B Controller, Power Control 68P81083C20-B Audio PA &...
  • Page 94 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title Controller 68P81083C20-B RF_REG_5V Receiver Front End 68P81080C44-B IF4-4-8 Receiver IF 68P81080C44-B Receiver Back End 68P81080C44-B Synthesizer 68P81080C44-B K9.1 Receiver Front End 68P81080C44-B...
  • Page 95 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title SPI_TX_DATA IF1-3-4 Receiver IF 68P81080C44-B IF3-3-3 Receiver IF 68P81080C44-B IF4-3-9 Receiver IF 68P81080C44-B Receiver Back End 68P81080C44-B Synthesizer 68P81080C44-B Controller, Power Control/Main...
  • Page 96 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title Controller Interface 68P81083C20-B 2.1MHZ Controller Interface 68P81083C20-B Controller Interface 68P81083C20-B DISC Controller Interface 68P81083C20-B 9.3V Controller Interface 68P81083C20-B ASFIC_PREAM Controller Interface...
  • Page 97 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title Controller Interface 68P81083C20-B SPI_TX_DATA Controller Interface 68P81083C20-B SPI_RX_DATA Controller Interface 68P81083C20-B O:JABBA_INT_ Controller Interface 68P81083C20-B C:DTMF_DATA _READY O:JABBA_SEL_ Controller Interface 68P81083C20-B...
  • Page 98 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title IO_6 Controller Interface 68P81083C20-B IO_5 Controller Interface 68P81083C20-B EMERGENCY Controller Interface 68P81083C20-B Controller Interface 68P81083C20-B RX_HI:FIL_AUD Controller Interface 68P81083C20-B AUX_RX_IN2 Controller Interface...
  • Page 99 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title Control Head Connector J0405 INT_SPK+ Controller Interface 68P81083C20-B SPK- Controller Interface 68P81083C20-B MON_BUSY:RE Controller Interface 68P81083C20-B PTT:BUS- Controller Interface 68P81083C20-B BUF_SPI_CLK:...
  • Page 100 Table 2: Schematic Diagrams Interconnection List From Signal Name Node No. Schematic Diagram Publication Signal Name Node No. Schematic Diagram Title Publication Title Controller Interface 68P81083C20-B SW_B+ Controller Interface 68P81083C20-B...
  • Page 101 Thank you for your cooperation. In reference to Manual Number: 68P81080C44-B MCS 2000™ Mobile Radio 1. Please check all the appropriate boxes: Disassembly...
  • Page 102 NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 9040 FT. LAUDERDALE, FL POSTAGE WILL BE PAID BY ADDRESSEE Attention: Media and Communication 8000 W. Sunrise Boulevard Ft. Lauderdale, FL 33322 FOLD FOLD (Continued) Please specify the page number along with any corrections or recommendations for improvement.

  • Page 103: Replacement Parts Ordering

    Send written orders to the following addresses: Replacement Parts/ Federal Government Orders: International Orders: Test Equipment/Manuals/ Crystal Service Items: Motorola Inc. Motorola Inc. Motorola Inc. United States and Canada United States and Canada United States and Canada Accessories and Aftermarket...
  • Page 104 MCS 2000 Mobile Radio Service Instructions 900-MHz Frequency Range Specific Publication Number 68P81080C44-B *6881080C44-B* 6881080C44-B...

Table of Contents