10-16
GND
VCOM
-7.1V
LCD+12.5V
+7.0V
GND
GND
LCD+12.5V
LCD+12.5V
BL-SW
BL-ADJ
COMP3
GND
GND
+7.0V
GND
+24V
Q215-C
GND
IC602-OUT
GND
GND
GND
GND
GND
GND
GND
AMP-R-SP
GND
OUT2
SVRR
OUT1
SSTCMP
ZCD
M/SS
Q202-C
GND
IS
AMP-R-SP
INV2
VH
+24V
GND
P-ON+9.0V
P-ON+9.0V
Q205-C
S-SW
LCD+12.5V
AMP-L
SP+14V
AMP-R
ALL+3.3V
GND
S-SW
+24V
P-ON-H1
ALL+3.3V
GND
PROTECT1
P-ON+5.0V
GND
28
29
1
2
GND
29
28
1
2
+24V
+31V
P-ON-H2
COMP1
GND
GND
+24V
P-ON+3.3V
+24V
1
2
29
28
LCD+12.5V
P-ON+3.3V
VT
P-ON-H2
+B
SDA
LOW-VOL-SENS
SCL
IF-AGC
SP+14V
ORV
GND
DIF-
GND
GND
DIF+
P-ON-H1
RESET
+24V
+31V
ALL+3.3V
GND
ISEN
GND
RESET
IC621 EN
GND
VIN
RCV-IN
ISEN4
UVLS
+24V
P-ON+3.3V
GND
GND
P-ON+3.3V
ALL+3.3V
GND
GND
GND
PROTECT3
Q202-C
P-ON+5V
+B
PROTECT3
4A/125V
HOT
COLD
RISK OF FIRE REPLACE FUSE AS MARKED
F601
COLD
HOT
P-ON+5.0V
PROTECT1
+7.0V
P-ON+5.0V
+31V
LOW-VOL-SENS
P-ON-H1
LCD+12.5V
P-ON-H2
P-ON+3.3V
VCOM-PWM
TU5V
LCD+12.5V
GND
GND
IC601-1
Q210-E
GND
GND
GND
J126
J127
J128
J129
J130
R601
J131
R602
J132
CN201
J135
J136
J137
R607
J138
R608
R220
R609
J139
R221
R222
R610
J140
R611
J141
R806
R612
J142
R807
R613
R614
J144
R615
J145
R617
J147
J148
R230
R619
R231
R232
CN601
J150
L1001
J151
J153
J154
C201
J155
J156
J157
C204
R628
R241
R242
R245
R247
R248
J160
C401
R631
R634
R635
R637
R638
C216
C601
FH
6
01
FH6
02
C603
C604
C605
C607
C608
C609
C223
C224
R649
C610
C805
C611
C806
R650
C614
R651
R652
R653
R656
C232
R658
R659
C812
C813
C623
C819
R661
R662
R664
C628
R665
R666
R667
C632
C
6
3
3
C634
R670
R671
C636
R672
R673
R675
R676
R1178
C834
C641
C643
R681
C645
R682
R683
C647
R684
C648
C649
D
2
0
1
R685
R1182
R686
D203
R688
D204
R1184
D205
D206
R1187
C650
D208
D209
C653
C654
R691
D401
D402
D404
D211
D212
D407
D213
R699
CN872
C661
D601
D602
D603
D410
D604
D605
D412
D413
D414
D608
D415
D609
D416
D418
D804
D610
D805
D611
D808
D614
D809
D615
D616
D617
D
618
D619
IC601
D621
D622
D623
T601
J001
J002
J003
J005
IC801
J006
J007
J008
C691
J009
D632
C692
D634
D635
D636
D637
J010
J011
J012
J013
J015
J017
J018
D641
J019
D643
D644
C1011
BC1001
D645
BC1002
D648
J020
D649
J023
J025
J027
D650
D651
J029
D654
D655
D656
D657
D659
J031
C1026
J032
C1027
CN101
J037
Q1028
Q1029
D665
D666
J040
Q1031
Q1032
J042
Q1033
J043
J044
Q1034
J045
D1016
J048
D1021
J051
J052
J056
J057
J058
J059
C1051
J168
C1054
J061
C1056
J062
J063
C1057
J064
J065
CN901
CN902
J067
CN903
CN904
J069
C1064
C1065
J071
J072
C1067
J073
C1068
C1069
J076
J079
C1074
J081
J082
C1076
J084
J085
J087
J089
J090
J091
J092
J094
J095
J097
J098
J099
D1070
D1071
SA601
D1072
D1074
D1075
D1076
D1077
D1080
Q202
Q203
Q204
Q205
Q206
Q401
Q210
Q211
Q212
Q213
L201
Q215
Q603
Q410
BC201
Q801
L602
BC601
BC602
BC603
J100
Q631
J102
Q633
J103
Q634
J104
Q635
Q636
Q637
J107
Q638
Q639
J109
J110
J111
Q641
Q643
J113
J117
J119
R206
J120
BC631
J121
J122
J123
GND
J004
J167
GND J146
J169
J170
CN873
1
2
KEY-IN1
P-ON+3.3V
ALL+3.3V
+24V
GND
PROTECT1
IC621 EN
GND
GND
GND
BS
BS
R208
J171
P-ON-H1
P-ON+3.3V
J047
GND
J173
GND
LED-R
GND
GND
BC1003
GND
CN873-4
COMP4
CN873-3
VREF
VREF
VREF
D213-C
Q205-C
Q204-C
J174
J175
J176
J177
J178
J179
J180
J181
J182
GND
C1060
GND
GND
GND
J124
J133
J134
R411
J143
R625
J158
TU301
J161
J162
J163
J164
J165
J166
J172
J183
R663
R679
R680
D207
R690
D403
D405
D408
L301
D411
D417
D624
J014
J016
D642
J021
J022
J024
J026
J028
Q171
D653
J030
J033
CN102
J036
J038
J039
CN301
J041
CN302
J046
J049
J053
J055
CN702
C303
C306
J066
J068
J070
J074
J075
J077
J078
J080
J083
J086
J088
J096
D301
D302
D303
Q402
Q403
J101
J105
J106
J108
Q642
J112
J114
J116
J118
JS103
GND
J115
J093
ALL+3.3V
1
6
2
5
J184
GND
GND
J185
J186
GND
GND
GND
J187
J188
J192
GND
GND
GND
GND
J191
J190
J189
J193+7.0V
J050
GND
GND
J054
C640
D214
Q601
LIGHT
J125
J152
ALL+3.3V
RCV-IN
J034
+B
D633
Q1035
KEY-IN1
J149
D606
D612
R1117
R1121
R1116
R1120
R1115
R1114
R1119
R1118
ISEN3
J194
D215
L601
J195
GND
C320
C321
E
D
B
C
A
1
2
3
4
1
7
1
4
5
8
1
4
5
8
1
4
5
8
1
14
15
28
R401
R402
R403
R404
R211
R212
R406
R213
R407
R214
R409
R215
R216
R217
R218
R219
R1102
R413
R414
R1105
R1106
R803
R804
R805
R808
R1110
R809
R1111
R1112
R1113
R618
R810
R811
R814
R620
R815
R621
R239
R816
R622
R817
R623
R818
R624
R819
C202
C203
R627
R240
C205
R629
C206
C207
R243
R820
C208
C209
R246
R249
R632
C402
R633
C210
C211
C212
R636
C213
R250
C214
R251
R639
R252
R253
R254
R640
R641
R642
R643
C222
R646
R647R648
C801
C225
C802
C226
C227
C228
C804
C229
R842
C807
C613
C808
C809
C615
C230
C231
R1152
C233
R657
R1153
C810
C234
R1154
C811
C235
C236
R1156
C620
C621
C816
C622
C817
C818
R660
C624
C625
C626
C627
C629
R668
C820
C821
R669
C630
C631
R1169
C635
R1170
R1171
R1172
R1173
R678
R1174
R1175
C833
R1179
C644
C646
R1180
R1181
R1183
R1185
R1186
R1188
R1189
C656
C658
R1190
C659
R1191
R1194
R1196
R1197
R1198
R1199
IC201
IC202
C670
C671
IC602
IC621
C1018
IC631
C1024
C1025
C1028
C1029
R700
R701
C1039
R1027
C1050
R1028
C1052
C1053
C1055
C1061
C1062
IC1033
C1066
C1070
C1071
C1072
C1073
C1077
F602
R201
R202
R203
R204
R205
R209
C101
C102
C1078
R405
R408
R412
R813
R626
C803
R677
L302
L303
BC301
C681
C682
C683
C684
C685
R302
R303
R305
R306
JS802
JS804
JS805
C103
C104
C105
C106
C107
C301
C302
C305
C309
C310
C311
C314
C315
R171
R175
C108
C1038
PIN 4 OF
CN302
WF1
PIN 15 OF
CN302
WF2
PIN 17 OF
CN302
WF3
PIN 13 OF
CN302
WF5
PIN 19 OF
CN302
WF4
Main CBA Bottom View
BA0177F01012
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
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.
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
CAUTION ! :
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
4A/125V
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) 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.
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