FUNAI BH2-M200 Service Manual page 56

Power Supply CBA, Front CBA & Scart CBA Top View
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1001) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
Front CBA
GND
J3705
IR
GND
J3702
J3704
L3701
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
J1247
BE4V20F0102
1 A
POWER PCB
9 1
10
2
CN2106
J1257
D1109
R1169
CN2105
20
2
1 19 1 4 5
CN2101
J1108 IR-IN CN2102
L1111
D1108 JP1113
D1122
R1168
L1117
J1102 DRIVE-SAFETY
J1256
DRIVE-SW
J1103
J1104 GND R1161
J1105
L1114
JP1108
JP1107
JP1110
JP1111
J1162
IC1102
J1107
GND
J1241
J1137
TRAY-KEY
J1139
POWER-KEY
J1138
PLAY-KEY
J1242
J1141
KEY1
D2603
C2607
J1132
BACK-LED
J1131
J1130 J1243 J1115
GND
J1129
J1174 /AMUTE-SUB
J1128
J1173
J1127
J1255
J1253
J1126
J1219 FB-REF
J1125
I2C-SDA
J1171
J1124
I2C-SCL
GND
J1112 JK1-8P-OUT
SCART-AMUTE1
J1123
ASW2 J1150
J1122
J1121 ASW1 JK1-8P-OUT
J1149
EV+5V
J1142
D2607
SYS+5V
J1213
SYS+5V
J1204 BUP+5V
J1203 GND
D2654
X2703
J1205 GND
J1206 J1210
GND
FAN-CONT
J1200
J1207
J1216
J1208
J1199
BUP+5V X2701 J1146
1V2-CONT
J1145
J1217 1V8-CONT
1V8-CONT
GND
J1143 PW-SW
J1144
J1209
DT-REG-CONT
J1214
J1240
J1198
LCD-CLK GND
J1197
LCD-DATA
C2652
J1196
LCD-CE
J1195 J1194 GND
GND
J1192
J1175
KEY1
J1191 SAFETY
J1187
SCART-AMUTE2
SYS+5V
J1190
DRIVE-SW
Because a hot chassis ground is present in the power supply
circuit, an isolation transformer must be used when repairing.
Also, in order to have the ability to increase the input slowly,
when troubleshooting this type of power supply circuit,
a variable isolation transformer is required.
Power Supply CBA
C2803
D1110
JP1104
1
L1105
Not Used
J1106
GND
J1159
J1160
PON+12V
CN2902
5 1
F
BE4V20F0102
1D
J1161
GND
USB PCB
D2651
Pb
J1226 C1180
J1249
GND
SAFETY
L1109
L2603 L2605
J1225
PON+5V
GND
J1220
J1172
J1231
J1170
BE4V20F0102
PON+3V3
J1232
D1103 J1164
EV+5V-AV
0VP-SAFETY
J1165
J1166 FB-REF
C1181
D1102
J1118
GND
D1112 L1110
R1167
C2608
J1157
J1236
EV+5V
J1148
J1252
J1120
GND
J1119 IC1101
JP1106
J1113 GND
J1117
GND
L1108
IC1105
GND
R1107 J1114
J1116
GND
Q2654
R2670 D1106
C2706
J1156
R2671
J1152
D2702
Q2702
D2703
J1230
R1178
Q2701
IC1113
D1104
1-15-21
20
2
D3601
21
D3602
1
D3802
D3603
Joints D3606
C3508 C3510
D3607
G C3651
SCART PCB
R3652
15
1 CN3501
BE4V20F0102
V9
1B
F
G
P V9
b
C3652
Scart CBA
1 Ver.9
DIP
C1008
R1012
SA1001
D1004
D1003
D1002
C1011
J1001
RISK OF FIRE
-REPLACE FUSE AS MARKED
BE4V20F01021