Pa200W Board - Icom IC-7800 Service Manual Addendum

11-29 PA200W BOARD

PA200W BOARD
TX: 14.67V
R107
RX: 15.01V
1k
TX: 3.42V
RX: 0V
Q101
J1
RD01MUS1
R102 C102
from MAIN PAI
unit J801
0.001
15
TX: 0.93V
RX: 0V
GND
EP502
GND
GND
GND
+48HV
+48V
+48V
1 NC
EP501
7 NC
2 H8V
+48HV
8 GND
3 H8V
to DC-DC 9 GND
4 C15V
unit W1
10 GND
5 C15V
11 GND
6 LG_PWR
12 GND
REG UNIT
TX: 14.63V
C111 R202
RX: 15.06V
0.001 560
TX: 4.09V
C112
RX: 0V
L202
0.1 LR-475
Q201
PD55003
R201
1
TX: 0.77V
RX: 0V
+15V_ +15V_
Explanatory notes
VOLTAGE LINE
TX LINE
+15V_
48.1V
11 - 28
L307
10µ
C311 R312 R307
TX: 4.78V
RX: 0V
0.0068 100 100
C401
0.68
C301
Q301
SD2918
0.1
TX: 48.0V
RX: 0V
L306
LR-474
C303
C402
0.1
0.68
L304
EXC-ELDR25C
R301
20k
L305
EXC-ELDR25C
+48HV
L303
10µ
STS-40
+48HV +48HV
2.87V
3V
+15V_
R6 1k
R7 1k
TX: 7.95V
RX: 0V
7.96V
Q1
2SB1119
C8
+48HV
0.0047
TX: 7.96V
R2
RX: 7.22V
10k
TX: 7.66V
RX: 0V
Q2
DTC114EU
R425
2k
R407
20k R423
1.5k
R416
15
C415
D403
1SS301
0.68
R418
18
R401 Q401
SD2931
12
48.0V
R402
12
TX: 2.59V
RX: 0V
R403
12
D401
1SS301
D402
1SS301
R404
12 TX: 2.58V
RX: 0V
R405
Q402
12 48.0V
SD2931
R406
12
R420
15
C416
D404
1SS301
0.68
R422
18
R410
20k R424
1.5k
R426
2k CP4
W501
R5
R3
EP503
2.2k
C16
C15
0.0047
0.0047
+48HV
THL
+15V_
15.06V
IC2
TA78L08F
+15V_
O I
G
J401
PAO to FILTER
unit J901
C417
0.1
L404
LR-95
C418
L403
0.1
LR-296
C419
0.1
C420
0.1
R521 R522 R523
CP5
0.01 0.01 0.01
+48HV
+48HV
J2
THL L1 10µ THML
L2 10µ IDH
to MAIN
L3 10µ IDL
unit J430
L6 10µ PAT8
+15V_ L7 33µ +15V
J5
+15V
+15V
to DC-DC
GND
unit J5
GND
MESUREMENT CONDITIONS
voltage at RX(no instruction)
frequency: 14.1 MHz
mode: J3E(USB)
ANT(RX): no input
(TX): no modulation
Digital tester
range: input impedance
200mV: 100MΩ
2V: 11MΩ
20V,200V,1000V: 10MΩ