
UHF 25-40W PCB 8480643Z06 / Schematic
4-17
CR4302
R4361
180
CR4301
0
R4315
L4332
GND
RXINJ
VCOBIAS_2
100pF
VCTRL_UHF_VCO
C4312
12pF
C4309
R4311
390nH
7.5K
L4361
.022uF
C4336
R4333
C4305
Vac
C4339
CR4303
R4302
10K
R4346
10K
1pF
C4321
C4314
1.5pF
5V_UHF_VCO
C4318
0.1uF
C4381
0.1uF
NU
1K
R4343
C4323
30
R4313
R4344
10
Q4332
0.1uF
CR4311
100pF
C4352
C4363
C4301
C4333
C4372
SH4301
SHIELD
R4332
4.7uF
C4325
0
RXINJ_UHF_VCO
1
P1
2
P2
3 P3
R4347
TXINJ_UHF_VCO
L4312
RESONATOR
L4331
33nH
L4301
390nH
TRB_UHF_VCO
C4315
100pF
22
R4331
C4313
TX_EMITTER
1
TX_IADJ
10
TX_OUT
13
TX_SWITCH
14
VCC_BUFFERS
18
VCC_LOGIC
RX_BASE
6
RX_EMITTER
2
RX_IADJ
8
RX_OUT
7
RX_SWITCH
3
SUPER_FLTR
19
TRB_IN
16
TX_BASE
15
1
4
COLL_RFIN
20
FLIP_IN
11
GND_BUFFERS
9
GND_FLAG
GND_LOGIC
17
12
PRESC_OUT
5
50U54
U4301
C4334
Q4301
R4341
100pF
0
2.4pF
C4307
68nH
C4324
56K
R4321
L4371
R4323
6.8pF
100K
C4331
R4339
C4351
100pF
VCOMOD
390nH
L4311
C4355
2.2uF
C4362
Vac
CR4321
C4322
SHIELD
SH4302
C4374
R4337
270
R4314
C4373
Vac
C4306
2pF
C4311
100pF
C4371
0.1uF
0.1uF
100pF
C4308
0.1uF
C4316
C4335
R4345
C4383
R4336
8.2pF
C4337
C4303
C4354
51pF
C4382
2.2uF
R4312
5.6K
30
R4303
390nH
R4338
Vac
L4333
R4334
Vac
8.2pF
2.2K
R4342
C4302
390nH
C4332
PRESC
L4302
R4322
10K
2
6
4
1
3
C4361
100pF
TXINJ
Q4333
VCOBIAS_2_UHF_VCO
C4375
0.1uF
NU
Q4331
Vac
10
R4305
390nH
L4304
390nH
L4305
R4335
Vac
VSF_UHF_VC0
3.9pF
C4317
VCOMOD_UHF_VCO
TRB
C4304
5.6K
R4301
51pF
C4338
VSF
3 P3
5V
C4353
0.1uF
L4303
RESONATOR
1 P1
2
P2
R4340
180
R4304
390nH
L4313
GROUND
VCTRL
PRESC_UHF_VCO
5V
VSF
TXSW
TXSW
RXSW
RXSW
VSF
0 VDC (Tx)
4.58 VDC
4.58 VDC
13.5 to 16 dBm
0 VDC (Tx)
4.7 VDC (Rx)
2.5 - 11 VDC
0 VDC (Rx)
4.97 VDC (Tx)
-18 to -16 dBm (Rx)
-16 to -11 dBm (Tx)
4 to 6 dBm
4.54 VDC
4.54 VDC (Tx)
0 VDC (Rx)
4.42 VDC (Rx)
0 VDC (Tx)
3.1 VDC (Rx)
2.6 VDC (Tx)
1.91 VDC (Tx)
0 VDC (Rx)
2.45 VDC (Rx)
0 VDC (Tx)
2.35 VDC
(Tx)
4.54 VDC
(Rx)
2.43 VDC (Rx)
ZWG0130272-A
UHF (403-470MHz) Voltage Controlled Oscillator
Summary of Contents for 6864115B62-C
Page 1: ...Professional Radio GM Series Detailed Service Manual 6864115B62 C ...
Page 2: ...ii ...
Page 4: ...iv ...
Page 5: ...Professional Radio GM Series Service Maintainability Issue July 2007 ...
Page 8: ...ii ...
Page 22: ...2 10 MAINTENANCE ...
Page 25: ...Professional Radio GM Series Controlhead Service Information Issue July 2007 ...
Page 77: ...Professional Radio GM Series Controller Service Information Issue May 2007 ...
Page 100: ...2 2 TROUBLESHOOTING CHARTS ...
Page 104: ...3 4 Controller schematics parts list ...
Page 154: ...3 52 Controller T12 Schematic Diagrams ...
Page 155: ...Professional Radio GM Series VHF 136 174MHz Service Information Issue May 2007 ...
Page 164: ...1 6 MODEL CHART AND TECHNICAL SPECIFICATIONS ...
Page 176: ...2 12 THEORY OF OPERATION ...
Page 186: ...3 10 TROUBLESHOOTING CHARTS ...
Page 190: ...4 4 VHF PCB SCHEMATICS PARTS LISTS ...
Page 252: ...4 66 VHF 1 25W PCB 8471235L02 Schematics VHF 136 174 MHz IF ...
Page 256: ...4 70 VHF 1 25W PCB 8471235L02 Schematics ...
Page 257: ...Professional Radio GM Series UHF 403 470MHz Service Information Issue May 2007 ...
Page 266: ...1 6 MODEL CHART AND TECHNICAL SPECIFICATIONS ...
Page 366: ...2 12 THEORY OF OPERATION ...
Page 372: ...3 6 Low Band TROUBLESHOOTING CHARTS ...