Motorola Commercial Series Service Information page 48

4-16
Circuit Motorola
Description
Ref Part No.
SH253 2686422Z01 shield, comp side, VCO RX
injection buffer
SH400 2686420Z01 shield, solder side, micropro-
cessor
SH401 2686420Z01 shield, comp side, memory
T41 2580541Z02 transformer, balun
T42 2580541Z02 transformer, balun
U51 5186144B01 receiver system (IFIC), SA616
U52 5109522E10 triple inverter, TC7W04F
U110 0186438Z01 transmitter PA module,
RA07M1317M_VHF
U150 5113818A01 dual op amp, LM2904
U151 2484657R01 bead, 57R01
U201* 5185963A27 frequency synthesizer, 63A27
U251 5105750U54 VCO/buffer, 50U54
U310 5102478J01 5 V voltage regulator,
TK71750S
U320 5185963A55 adjustable voltage regulator w/
reset, LP2986
U330 5102479J01 3 V voltage regulator,
TK71730S
U403 Not_Placed SRM2B256
U425 5162852A09 LOW PWR OP AMP W/RAIL
TO RAIL
U451 5185130C53 audio filter (ASFIC.cmp),
30C53
U480 Not_Placed LM2904
U490 5108858K99 audio power amplifier,
TDA8541
U510 5113818A01 dual op amp, LM2904
U511 4802245J54 dual digital NPN, UMG5
U401* 5102226J56 microprocessor,
MC68HC11FL0
U402* 5102463J64 serial EEPROM 16Kx8,
X25128-2.7
Circuit Motorola
Description
Ref Part No.
U404* 5102480J01 Flash ROM 128Kx8,
AT49LV001N_70VI
VR110 4813830A82 zener diode, 4.3 V,
MM3Z4V3T1
VR301 4813830A33 zener diode, 20 V,
MMBZ5250B
VR302 4813830A33 zener diode, 20 V,
MMBZ5250B
VR471 4813830A18 zener diode, 6.8 V,
MMBZ5235B
VR472 4813830A09 zener diode, 3.3 V,
MMBZ5226B
VR473 4813830A33 zener diode, 20 V,
MMBZ5250B
VR474 4813830A33 zener diode, 20 V,
MMBZ5250B
VR475 4880140L20 zener diode, 15 V,
MMBZ5245B
Y51 4802245J84 crystal, 44.395 MHz
Y70 9186145B02 ceramic discriminator, 455 kHz,
45B02
Y201* 4880114R06 crystal, 16.8 MHz, 14R06
Y202 Not_Placed 45J68
* Motorola Depot Servicing only
VHF PCB 8486769Z02-A Parts List