Motorola GP328 Detailed Service Manual

Circuit Board/Schematic Diagrams and Parts List 6A-25
* Motorola Depot Servicing only
R204 0662057N15 47k
R231 0662057M52 120
R232 0662057M69 620
R233 0662057M68 560
R241 0662057M32 18
R242 0662057M57 200
R243 0662057M98 10k
R244 0662057N01 12k
R245 0662057M59 240
R248 0662057M37 30
R251 0662057M32 18
R252 0662057M62 330
R253 0662057M95 7500
R254 0662057M95 7500
R255 0662057M89 4300
R256 0662057M37 30
R260 0662057M74 1000
R300 0662057M82 2200
R301 0662057N23 100k
R302 0662057N23 100k
R303 0662057M74 1000
R304 0662057N01 12k
R305 0662057M67 0
R306 0662057N23 100k
R307 0662057N23 100k
R308 0662057M60 270
R309 0662057M32 18
R310 0662057M60 270
R311 0662057N10 30k
R312 0662057M83 2400
R313 0662057M62 330
R314 0662057M85 3000
R315 0662057N01 12k
R316 0662057A96 91k
R317 0662057M74 1000
R318 0662057A79 18k
R319 0662057A29 150
R320 0662057M74 1000
R321 0662057M83 2400
R322 0662057N30 200k
R324 0662057M81 2000
R325 0662057M94 6800
R327 0662057N11 33k
R328 0662057M12 2.7
R329 0662057M01 0
R339 0662057M01 0
R340 0662057M94 6800
R342 0662057N23 100k
R343 0662057M26 10
R344 0662057N01 12k
R345 0662057M98 10k
Circuit
Ref
Motorola
Part No.
Description
R346 0662057N17 56k
R347 0662057M74 1000
R348 0662057M87 3600
R349 0662057C01 0
R350 0662057N23 100k
R351 0662057C01 0
R352 0662057M86 3300
R355 0662057M01 0
R400 0662057N15 47k
R401 0662057M01 0
R405 0662057M01 0
R406 0662057N20 75k
R407 0662057N19 68k
R409 0662057M98 10k
R410 0662057N23 100k
R411 0662057M98 10k
R413 0662057M01 0
R414 0662057V34 180k
R415 0662057V26 91k
R416 0662057M90 4700
R418 0662057M01 0
R419 0662057M67 0 (not used in GP328)
R420 0662057B46 10M (not used in GP328)
R421 0662057M81 2000
R423 0662057N39 470k
R424 0662057N12 36k
R425 0662057N10 30k
R426 0662057N35 330k (not used in GP328)
R427 0662057M84 2700
R428 0662057M10 2.2
R429 0662057M98 10k
R431 0662057N39 470k
R432 0662057N16 51k
R434 0662057M62 330
R435 0662057M81 2000
R436 0662057M01 0
R445 0662057N08 24k
R446 0662057N22 91k
R447 0662057N38 430k
R448 0662057N06 20k
R449 0662057N08 24k
R450 0683962T45 68 ohms, 1W
R457 0662057M98 10k
R460 0662057M90 4700
R461 0662057M56 180 (not used in GP328)
R462 0662057M98 10k (not used in GP328)
R463 0662057M61 300
R471 0662057N06 20k
R472 0662057N12 36k
R473 0662057M26 10
R475 0662057M01 0
Circuit
Ref
Motorola
Part No.
Description
R476 0662057N35 330k
R477 0662057M74 1000
R478 0662057M98 10k
R481 0662057N08 24k
R492 0662057M01 0
R501 0662057M70 680
R502 0662057M56 180
R505 0662057M98 10k
R506 0662057N15 47k
R507 0662057M01 0
RT300 0680590Z01 THERMISTOR_33K
RT400 0680590Z01 THERMISTOR_33K
S501 4080710Z01 Frequency Switch
S502 1880619Z02 Volume/on-off switch
SH100 2680507Z01 Harmonic Filter shield
SH101 2680510Z01 RF PA shield
SH201 2680511Z01 Synthesizer top shield
SH202 2680511Z01 Synthesizer bottom shield
SH241 2680513Z01 Resonators shield
SH242 2680514Z01 VCO Buffer IC shield
SH301 2680554Z01 Receiver front end shield
SH302 2680555Z01 Receiver front end bottom
shield
SH303 2680509Z01 Mixer shield
SH304 2680624Z01 Mixer diode shield
SH321 2680508Z01 LVZIF 2nd LO shield
SH322 2680514Z01 LVZIF shield
SH323 2680553Z01 Crystal Filter shield
SH400 2680505Z01 Controller Memory Shield
SH401 2680506Z01 Controller on-off shield
SH402 2680515Z01 Microprocessor shield
SH403 2680516Z01 Asfic_Cmp/Audio PA shield
T301 2580541Z02 Balun transformer
T302 2580541Z02 Balun transformer
U101 5105109Z67 LDMOS driver IC
U102 5185765B28 PCIC
U201 5185963A27 LVFRACN Synthesizer IC
U210 5102463J61 Inverter
U211 5102463J61 Inverter
U241 5105750U54 VCO Buffer IC
U247 5105739X05 5V Regulator
U248 5102463J58 3.3V REGULATOR IN
SOT23-5 PKG
U301 5109632D83 LVZIF IC
U400 5102463J40 3.3V Regulator
U404 5185963A53 Asfic_Cmp
U406 *5102463J59 128K X 8 FLASH ROM
U407 *5102463J64 16K X 8 EEPROM
U409 5102226J56 Microprocessor
U410 5102463J57 3.3V Regulator (not used in
GP328)
Circuit
Ref
Motorola
Part No.
Description
U420 5102463J44 Audio amplifier
VR432 4805656W08 Zener diode-5.6V
VR433 4805656W08 Zener diode-5.6V
VR434 4802245J73 Zener diode-6.8V
VR439 4880140L17 Zener diode-12V
VR440 4802245J73 Zener diode-6.8V
VR441 4802245J73 Zener diode-6.8V
VR442 4802245J73 Zener diode-6.8V
VR443 4802245J73 Zener diode-6.8V
VR444 4802245J73 Zener diode-6.8V
VR445 4802245J53 Zener diode-10V
VR446 4802245J74 Zener diode-10V
VR447 4802245J74 Zener diode-10V
VR448 4802245J74 Zener diode-10V
VR449 4802245J74 Zener diode-10V
VR450 4802245J75 Zener diode-12V
VR501 4813830A18 Zener diode-6.8V
VR506 4802245J73 Zener diode-6.8V
1485777Z01 Insulator
8480450Z03 UHF Band 1 main PC Board
Circuit
Ref
Motorola
Part No.
Description

Motorola GP328 Specifications

General

Channel Capacity	16 channels
Operating Temperature	-30°C to +60°C
Sealing	IP54
Frequency Range	136-174 MHz (VHF), 403-470 MHz (UHF)
Power Output	1-5W (VHF), 1-4W (UHF)
Dimensions	137 x 57.5 x 37.5 mm
Power Supply	7.5V
Battery Life	8 hours (High Power), 11 hours (Low Power) with standard NiMH battery
Weight	420g (with standard battery)