Icom IC-PW1 Service Manual Addendum page 180

9-2 PX-1981 REG UNIT
FIL-AC UNIT REG-RELAY UNIT
F1 RUSH
AC
RESTRA INT
F2
INPUT
AC FILTER CIRCUIT
CIRCUIT
R2, R4
20A [USA]
RL1,
15A [EUR, EUR-1]
RL3, RL4
F1 F2
4A
FAN–
SUB-REG UNIT
AC FILTER
AC1 RCC CIRCUIT
CIRCUIT
E
Q1: 2SC4237
Q2: 2SC2655 Y
AC2
L4, C30, C31
Q3: 2SC2655 Y
D1: D3SBA60
AC1
E
AC2
D8: S1VB60
FAN–
ACTIVE FILTER
AC1
CIRCUIT
E
LPF
Q1-Q3: MTW20N50E
AC2 D2: MUR3060WT
REG: L1, L2
D1 D25XB60
MULT PKLMT
ACTIVE FILTER
VSENSE
CONTROL CIRCUIT
GTDRV
Buffer
IAC
Vrms
IC1: TK83854D Q5: 2SC2655 Y
Q6: 2SA1020 Y
SELV
Q7: 2SA1048 GR
ACTFIL UNIT
T1
RECTIFICATION 18V Regurator
CIRCUIT
IC5: TA78M18S
D3, D10: SF5S6
RECTIFICATION
CIRCUIT
D4: SF10SC6
IC2 PC111YS IC6 PC111YS
RCC
CONTROL
CIRCIT
IC3: HA17431PA
HVSA
AC100V/200V IC7: PC111YS
SELECT
CIRCUIT SEL
Q5: 2SC1815
D9: RD100E B
Q4: 2SC3075
IC4: PC111YS
SELV
9 - 2
FET
TEMPERATURE
DETECTOR
REG S1
INVERTOR
CIRCUIT
Q1-Q4:
MTW20N50E
ACT-C
UNIT
T3
T4
REG S1
CONV UNIT
IC3: PC111YS
VOLTAGE
DETECTOR
IC6: HA17431PA
CONNECT UNIT
Q1: 2SC2458 Y
Q2: 2SD468C
18V Soft start SW
18V
Q6: 2SA1020 Y
12V
RECTIFICATION CURRENT
DETECTOR
CIRCUIT
D1, D2:
R17, R18
MUR2060WT
REG T1
DIODE
TEMPERATURE
DETECTOR
R92
Q5: 2SK702
E1
Buff
INVERTER
CONTROL
Q6: 2SK702
CIRCUIT
E2
Buff
IC1: µPC494C
CONV-CTRL UNIT
HEAT SINK
TEMPERATRE
DETECTOR
R15
Q11: 2SC2458 Y
FIL-DC UNIT
DC FILTER
CIRCUIT DC OUTPUT
IC2A: NJM4558D
AMP
Q16
RN1202
SEL
IC2B: NJM4558D
Limitter
AMP
SEL
Q15:
RN1202
MAXI
Q8: 2SC2458 Y
Q7: 2AC2458 Y
RL1
IC1: HA17431PA
Q5: 2SC2458 Y
Q6: 2SD468C
TO EX-1900