Motorola CDM1550 LS+ Detailed Service Manual page 109

700 MHz Schematic Diagrams, Overlays, and Parts Lists
Circuit Motorola
Description
Ref Part No.
Circuit
Ref
-R347 1 0662057A7 3 10 K Sffi301
R3472 0680194M18
51 SH3302
R3473 0662057A41 470
T3001
R3475 0662057A89 47 K
T3002
R3476 not used
U0101
R3477 0683962T51 120
R3478
0662057A49 1 K
R3479 not used
R3480 0683962T51 120
U0111
U0121
R3481 0662057B47 0
U0122
R3482 0662057C85 2.7 K
U0141
R3483 0662057A18 51 U0211
R3484 0662057A73 10 K U0221
R3485 0662057A97 100 K
U0251
R3501
not used
U0271
R3502 0662057B09 300 K
U0611
R3503 0662057A73 10 K
R3504 0662057A69 6.8 K
R3505 0662057A87 39 K
U0641
R3506
0662057A97 100 K
R3507 0662057A49 1 K
R3508 0662057A80 20 K
R3509
0662057B47
0
R3510 0662057A87 39 K
R3511 0662057A57 2.2 K
R3512 0662057A87 39 K
R3513 0662057C13 2.7
R3514 0662057A58 2.4 K
R3515 not used
R3516 0662057A87 39 K
R3517
not used
R3518 0662057C13 2.7
R3519
0662057C13 2.7
R3520 0662057C13 2.7
R3521 0662057C13 2.7
R3522 not used
U0651
U0652
U0653
U3101
U3180
U3201
U3202
U3301
U3302
U3303
U3401
U3501
U3502
U3503
VR0151
VR0501
R3523 0662057A87 39 K
R3524 not used
VR0503
R3525 0662057A81 22 K
R3526 0662057A73 10 K
R3527
0662057A73 10 K
VR0504
VR0505
R3528 0662057A97 100K
R3529 not used
R3530 0662057B47 0
R3531 not used
R3532
0662057A65 4.7 K
SH3000 2680554Z01
Shield, FE Top
SH3001 2680509Z01 Shield , FE Bottom
SH3002
2680554Z01 Shield, FE Top
SH3201 2686081B02 Shield, FracN Bottom
SH3202 2686081B02 Shield, FracN Top
VR0509
VR0510
VR0537
VR0541
VR0601
VR0621
VR0671
VR3470
Y0131
Motorola
Description
Part No.
260264 1Y02
-Sh1eld , VCO Botto m
2602641Y02 Shield , VCO Top
2580541Z02 Mixer Balun
2580541Z02 Mixer Balun
5102226J56 Microcontroller
MC68HC11 FLO
5102463J64 EEPROM X25128-2 .7
5186137B01
512K x Bbit Flash ROM
5185748L01 32K x Bbit SRAM
5113805A30 Demux MC74HC138A
5183222M49 Quad Opamp MC3403
5185130C53 ASFIC Audio Filter IC
5184704M60 Mux/Demux HEF4053B
5102463J95 Audio Power Amp TDA1519C
5183308X01 Adjustable Voltage Regulator
LM2941
5183308X01 Adjustable Voltage Regulator
LM2941
5113816A07 SV Regulator MC78M05
5113815A02 Under Voltage Sensor
not used
5186144B01 SA616 IFIC
5185661L01 Dual Rail to Rail Opamp
5185963A27 Low Voltage FracN
5105739X05 5V Regulator MC78M05
5105750U54 VCO Buffer IC
4802245J94 Resonator
4802245J94 Resonator
5185130C65 LDMOS Power Amplifier
5185765B26 Power Control IC
5185963A15 Temperature Sensor
5109731C21 Dual Opamp
4813830A15 5.6V Zener MMBZ5232B
4805656W09 Quad 20V Zener
MMQA20VT1
4805656W09 Quad 20V Zener
MMQA20VT1
4813830A40 33V Zener MMBZ5257B
4805656W09 Quad 20V Zener
MMQA20VT1
4813830A40 33V Zener MMBZ5257B
4813830A40 33V Zener MMBZ5257B
4813830A15 5.6V Zener MMBZ5232B
4813830A27 14V Zener
4813832C77 Transient Suppressor
4813830A15 5.6V Zener MMBZ5232B
not used
4813830A15 5.6V Zener MMBZ5232B
4880113R19 Ceramic Resonator 38.4 kHz
Circuit Motorola
Description
Ref
Y3101
Y3102
Y3201
Part No.
4880606B10 72 .895 MHz 3rd Overtone
Crystal
9186145B02
455 kHz Discriminator
4802245J68 16.8 MHz Reference
Oscillator
* Motorola Depot Servicing only
Reference designators with an asterisk indicate
components which are not field replaceable
because they need to be calibrated with
specialized factory equipment after installation.
Radios in which these parts have been replaced in
the field will be off-frequency at temperature
extremes.
4-43