Motorola Radio Mcs2000 Vol 2g 68p81080c48 O Manual
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23 DEPC-97142-O/None Receiver Back End (Kit HUD4012D) Schematic Diagram This document was created with FrameMaker 4.0.3 14_RBE SD p23 Page 23 Tuesday, January 19, 1999 5:04 PM
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24 R5777 0662057A09 22 R5778 0662057A59 2.7K R5779 0662057A49 1K R5780 0662057A09 22 R5781 0662057A13 33 R5782 0662057A29 150 R5783 0662057A15 39 R5784 0662057A29 150 R5786 0662057A13 33 R5787 0662057A56 2K R5788 0662057A49 1K R5789 0662057A29 150 R5790 0662057A29 150 R5791 0662057A29 150 R5792 0662057A15 39 R5793 0662057A29 150 R5850 0662057A89 47K R5851 0662057A89 47K R5866 0662057B47 0 INTEGRATED CIRCUITS: U5800 5105279V38 Oscillator, 16.8 MHz U5801 5105457W73 FRACTN U5802 5113816A07 Regulator,...
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25 63A81090C73-O Synthesizer (Kit HUD4012D) Schematic Diagram This document was created with FrameMaker 4.0.3
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26 REFERENCE SYMBOLMOTOROLA PART NUMBERDESCRIPTION CAPACITORS: C3501 2113740F25 8.2 pF C3502 2113740A67 330 pF C3504 2113741F49 0.01 uF C3505 2113741F49 0.01 uF C3521 2113740F29 12 pF C3522 2113741F29 1500 pF C3523 2113741F49 0.01 uF C3524 2113740A67 330 pF C3526 2113740A67 330 pF C3528 2113740A67 330 pF C3529 2113741A33 3300 pF C3530 2113740F37 27 pF C3541 2113740A67 330 pF C3542 2113741A33 3300 pF C3543 2113741A57 0.033 uF C3545 2111078B38 68 pF C3547 2113740A67 330 pF C3548 2113740A67 330...
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27 DEPC-97139-O/None Power Amplifier (Kit HUD4012D) Schematic Diagram This document was created with FrameMaker 4.0.3
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28 Q3541 Bias Measurement and Adjustment Procedure: 1. Disconnect A+ supply from radio. 2. Remove resistor R3503 and ferrite bead L3607 from PCB. 3. On PCB, tack solder wires onto pads for L3607 temporarily and connect the wires to a digital milliammeter. 4. Reconnect A+ supply to radio. Set A+ supply to 13.6 volts, and current limit to 4.0 Amperes. 5. Key up transmitter and observe current indicated on milliammeter. If current is between 120 and 180 milliamperes, skip to step 14. Otherwise, proceed...
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29 1 Table 1: Schematic Diagram Interconnection List From/To From/To Node Signal Name Schematic Diagram TitlePublication Node Signal Name Schematic Diagram TitlePublication IF1-2-12 AUDIO_MOD Main Controller Block Diagram68P81083C20 IF1-2-12 AUDIO_MOD Receiver IF 68P81080C48 IF1-2-13 ROSC_SEL Main Controller Block Diagram68P81083C20 IF1-2-13 ROSC_SEL Receiver IF 68P81080C48 IF1-2-14 GND Main Controller Block Diagram68P81083C20 IF1-2-14 GND Receiver IF 68P81080C48 IF1-2-15 9V3 Main...
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30 IF1-3-4 SDATA Main Controller Block Diagram68P81083C20 IF1-3-4 SPI TX DATA Receiver IF 68P81080C48 IF1-3-5 SCLK Main Controller Block Diagram68P81083C20 IF1-3-5 CLK Receiver IF 68P81080C48 IF1-3-6 RX_CNTL_I_SRC Main Controller Block Diagram68P81083C20 IF1-3-6 Not Indicated Receiver Front End 68P81080C48 IF1-3-7 GND Main Controller Block Diagram68P81083C20 IF1-3-7 GND Receiver IF 68P81080C48 IF1-3-8 2.1MHz Main Controller Block Diagram68P81083C20 IF1-3-8 2.1MHz Receiver IF 68P81080C48 IF1-3-9...
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31 IF2-2-12 GND Synthesizer 68P81080C48 IF2-3-1 PA Temp Synthesizer 68P81080C48 IF2-3-1 PA_TEMP Main Controller Block Diagram68P81083C20 IF2-3-2 PA_CONTRL Synthesizer 68P81080C48 IF2-3-2 PA_CNTL Main Controller Block Diagram68P81083C20 IF2-3-3 Current_Sense- Synthesizer 68P81080C48 IF2-3-3 CURRENT_SENSE_- Main Controller Block Diagram68P81083C20 IF2-3-4 Current_Sense+ Synthesizer 68P81080C48 IF2-3-4 CURRENT_SENSE_+ Main Controller Block Diagram68P81083C20 IF2-3-5 A+ Synthesizer 68P81080C48...
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32 IF3-4-8 Not Indicated Receiver Front End 68P81080C48 IF3-4-8 RF_REG_5V Receiver Back End 68P81080C48 IF4-1-6 Mod In Synthesizer 68P81080C48 IF4-1-6 AUDIO MOD Receiver IF 68P81080C48 IF4-2-7 2.1 MHz Synthesizer 68P81080C48 IF4-2-7 2.1MHz Receiver IF 68P81080C48 IF4-3-1 CLK Synthesizer 68P81080C48 IF4-3-1 CLK Receiver IF 68P81080C48 IF4-3-3 LOCK DET Synthesizer 68P81080C48 IF4-3-3 LOCK_DET Receiver IF 68P81080C48 IF4-3-4 FRACN CE Synthesizer 68P81080C48 IF4-3-4 SYN_SEL Receiver IF 68P81080C48...