Icom IC-9700 Service Manual Addendum page 68

(Amended page)
June 2019
• PA-C UNIT
Pattern coil
Q101
PD85004
C109
7P
TX : 4.3 V (Adjustment value: reference)
RX : 0 V
L142
3.9N
C133
100P
R138
47k
2
1
L141
3
IC131
LQW18AN82NG00D
NJM2904CRB1
IC141
TX : 4.9 V
R191
MP141
RX : 0 V
MMG3H21NT1 15
OG-363065HD
TX : 3.9 V
RX : 0 V
IC191
4
GND
3
OUT GND
BGA616
MP161
3250
TX : 0 V
RX : 1.4 V
R361
MP361
39k
3754
C362 R363
0.1 49.9
C363
470P
L367
#617DB-1919=P3
C372
470P
C371 R365
CP361
0.1 47k
SHORT1005
TX : 4.9 V
RX : 0 V
TX : 0 V
RX : 4.9 V
EP421
MMZ1005Y102CT
L422
C391 C393 C395
0.22U
IC421
18P 8P 15P
1 4
C382 C384 IN GND C424
2 3
GND OUT
4P 1.5P 0.01
BGA616
Pattern coil
Pattern coil
C119 L121 Q81
AFT09MS031NR1
10P 3.7N
TX : 3.8 V (Adjustment value: reference)
RX : 0 V
1632
MP81
IC131
NJM2904CRB1
5
7
6 IC131
NJM2904CRB1
R131
C132 100
100P
0.5 V (Ambient temperature=25°C)
Q195
T5V RZF020P01TL 5V
TX : 3.1 V
Q196
RX : 0 V
LDTC143ZE
EP191 R193
MMZ1005Y102CT 10k
TX : 0 V
RX : 4.9 V
C201 C203 C205
1
IN
2
2.5P 1.5P 2.5P
C269
10P
R293
49.9
C297
2P
L267
10N
R298
49.9
C361 C376 C374
C334
10P
4P 3.5P 3.5P
R335
100k
R336
IC332
R346
4 3
1k VCTL2 P2
5 2
PC GND 0
Q361 6 1
VCTL1 P1
LDTC143ZE
NJG1801K75
R337
100k
C335
C343 R341
10P
C336
470P 68
R423
10P
100k
C337 C345
470P
10P
Q423 Q422
RZF020P01TL LDTC143ZE
TX : 4.9 V
C338
RX : 0 V
10P
FI431
1 7
I G
J431
2 6
GI GO L432 R432
3 5 MAIN UNIT
When RX in the 1.2 GHz band with "P.AMP" ON
G O
(10/13)
47N 0
When RX in the 1.2 GHz band with "P.AMP" OFF
12RIF
TB0648A
The underlined parts have been updated from the addendum of the previous version, or from the original page.
The waveform and voltage indications have been added on the original page.
Pattern coil Pattern coil
C95 L91 L92
4P 6.8N 6.8N
C94
MP61
10P
OG-363065HD
PA-B UNIT
J61
9 10
R52
10.0 V
100k
IC51
1 5
CTRL VIN
2
GND
3 4
NC VOUT
NJM2831F10
8.0 V
MP231
EP231
3R3V
MMZ1005Y102CT
3250
C243 C245
IC231
1 8
RF/IF RF/IF 5P 2.5P
2 7
GND2 NC
3 6
LOIN VPOS
4 5
NC GND1
L233
ADL5350ACPZ
3.9N
R274 CE12
R273 22 LE12
R272 22 DAT12
R271 22 CLK12
R278 22 ULKL12
22
3.2 V
33
GND
EP276
MMZ1005Y102CT
9 32
GND VccFRAC
10 31
VccPLL GND CP06S
11 30 CP271
Fin MUXout
12 29 C288
RFoutA+ IC271 OSCin
13 28 0.1
RFoutA- LMX2581 VccDIG
14 27 EP275
RFoutB+ GND
15 26
RFoutB- BUFEN MMZ1005Y102CT
EP273 16 25
VccBUF LD
MMZ1005Y102CT
MP271
1.6 V
3754
2.5 V
EP274
IC321
2.8 V
5 4
TX : 1.4 V
MMZ1005Y102CT NC NC
6 3
Shut Down NC
RX : 1.3 V
7 2
RF Out RF In
8 1
NC NC
TQP3M9037
C332
10P
L323 C323
R331
100k
18N
470P
C324
IC331
1 6 FI321
P1 VCTL1 C322 C321 0.01
2 5
GND PC O I
3 4
P2 VCTL2 470P 100P
NJG1801K75 TA1985A
EP321
R333
MMZ1005Y102CT
100k
C333
R322 When TX in the 1.2 GHz band: 0 V
10P
When RX in the 1.2 GHz band with:
100k
"ATT" ON:
"ATT" OFF:
Q321
RZF020P01TL
TX : 0 V
Q322
RX : 4.9 V
LDTC143ZE
TX : 4.9 V
RX : 0 V
When TX in the 1.2 GHz band: 0 V
TX : 0 V
When RX in the 1.2 GHz band with:
RX : 3.0 V
12PONS 12POFS "ATT" ON:
When TX in the 1.2 GHz band 0 V 3.2 V "ATT" OFF:
3.2 V 0 V
0 V 3.2 V
10-16a
Pattern coil
Pattern coil
RL51
ARS14A09
TX : 9.0 V
RX : 0 V
TX : 9.9 V
RX : 0 V
Q51 Q52 R32
LDTA123YET Table: F
LDTC143ZE
4.7k
7
C60 C59
IC20
47P 47P
NJM2904CRB1
TX : 4.2 V*
12EPL R33
RX : 0 V
12FORL C31
12REFL
TX : 0.4 V*
RX : 0 V
C251 C253 EP1 R1
C254
14V
15P 7P 15P MPZ2012S331A 1.5
MAIN UNIT
J251
(10/13)
8
V+ IC20 Q1
GND L2SA1576AR
NJM2904CRB1
4
12TIF
Q3
LDTC143ZE
12EPS
196.608 MHz Table: A
+0.95 V
−0.95 V
Table
When TX in the VHF band
EP301
When RX in the 1.2 GHz band with "External P.AMP" ON
MPZ2012S331A
When RX in the 1.2 GHz band with "External P.AMP" OFF
DCREF
R304
4.7
J301
R303
IC301
MAIN UNIT
(13/13) 1 5
18 CTRL VIN
2
GND
3 4
NB VOUT
NJM2881F33
C314 C313 C312 C311
3.3 V
3P 1.5P 1.5P 3P
12FORL EP501
12REFL EP502 MMZ1005Y102CT
MMZ1005Y102CT
12THML EP503
MMZ1005Y102CT
12EPL EP504
R505 MMZ1005Y102CT
12EPS
C325
R506 100
12PONS
R507 100
12POFS
100P
R508 100
12ATONS
4.9 V
R509 100
12RXS
D326 R510 100
12TXS
100
12FIDV EP511
MMZ1005Y102CT
12DIDV EP512
MMZ1005Y102CT
13.2 V
BAP50
DAT12 R513
22
CLK12 R514
22
LE12 R515
ULKL12 R516 22
CE12 R517 22
EP326
22
MMZ1005Y102CT
4.9 V C328
0 V
0.001
Q327
LDTC143ZE
EP518
Q326
LDTA114EE
MPZ2012S331A
EP519
MPZ2012S331A
3.1 V
When TX on 1280.02 MHz RTTY [Po=100% (10 W)/ANT=50 Ω termination].
*
0 V
* Refer to the PARTS LIST for the value and name of components.
Pattern coil
1.2 G
CP1
ANT
CP2
CP3
R42
D31 D41
L1SS400 4.7k L1SS400
6 2
1
5 3
IC20
NJM2904CRB1
R43
10k 10k
C41
0.001 0.001
Table: D
Q2
2SB1201 Table: E
R3
470k
Table: C
R4
Table: B
1.8k
A B C D E F
0 V 12.9 V 13.3 V 13.4 V 0 V 0 V
3.1 V 12.7 V 13.3 V 13.4 V 13.4 V 2.7 V
0 V 12.9 V 13.3 V 13.4 V 0 V 0 V
Explanatory notes
TX Line
RX Line
Voltage Line (14V)
J501
12REFL 12FORL
1
2
12THML GND
4 3
12EPL GND
6 5
12EPS GND
8 7
12PONS GND
10 9
12POFS GND
12 11
12RXS 12ATONS
14 13
12FIDV 12TXS
16 15
DAT12 12DIDV
18 17
LE12 CLK12
20 19
CE12 ULKL12
22 21
5V NC
24 23
5V 5V
26 25
14V NC
28 27
14V 14V
30 29
MAIN UNIT
(4/13)