Icom IC-9700 Service Manual Addendum page 51

(Replacement page)
June 2019
IC1001
HV(13.8V) H4V H4V H4V
DC-DC
DCLK_N
CAPONS
H4V
UPWS
H4V
PWRS
H4V
14V(13.8V)
DCLK_N
IC1102
DCLK_P
MAIN UNIT (REG BLOCK)
IC1011 IC1041
H3R3V
H3R3V H3R3V H3R3V H1R18V H1R18V
REG DC-DC
IC1042
IC1091
DCLK_P SW
BACK-UP
CTRL
DCSYNCS_
IC1021 Q1051
+3R3V USB3R3V H3R3V SD3R3V
SW
REG
SDPWS
IC1031
+3R3V 3R3V 3R3V
REG
IC501
3R3V +1R4V DV1R4V
REG
IC1071
+2R5V FP2R5V
REG
IC1261
8V CURRENT
DET
13.8V
IC1201
+8V 8V IC1331
DC-DC
8V +5V
REG
IC1231
8V +5V
REG
Q1111,Q1112
WAKE-UP
CTRL IC1221
8V +5V
REG
IC1101 IC1111
IC1211
I5V I5V +1R1V FC1R1V
DC-DC DC-DC 8V I2V
DC-DC
IC1112
DCLK_N
DCLK_P SW
BUFF
DCSYNCS_
IC1121
I5V +3R3V DA3R3V
REG
IC1131
I5V +3R3V A3R3V
REG
IC1321
I5V +3R3V C3R3V
REG
The underlined parts have been updated from the addendum of the previous version, or from the original page.
Explanatory notes
CONTROL Line
Voltage Line (HV)
Voltage Line (14V)
Voltage Line (8V)
Voltage Line ( I 5V)
Voltage Line (H4V)
Voltage Line ( I 2V)
PA8V
DIDL
C5V
DA5V
A5V
IC1241
I2V +1R3V 1R3V
REG
IC1246
I2V +1R2V 1R2V
REG
IC1251
I2V +1R8V 1R8V
REG
9-4a
IC2601,Q2601
IC2501
ALC ALC
ALC
AMP AMP
IC2601 IC2541
VREFLP
UREFLP
METER APC
ALCL 12REFLP
AMP AMP
Q2591
IC2501
ALC ALC
EALC
Q2561,Q2562,Q2567 AMP AMP
NASBS ALC-CTRL
IC2541
IC2501
IDLP
APC ALC
AMP AMP
ICCV
IC2501
ALC
AMP
IC2541
ALC
AMP
IC2541
ALC
AMP
MAIN UNIT (ALC BLOCK)
VFORLP
POCV
Q2501,Q2511,Q2512
ALC-CTRL AMS
UFORLP
POCV
Q2521,Q2531,Q2532
ALC-CTRL AMS
12FORLP
POCV
Q2541,Q2551,Q2552
ALC-CTRL AMS