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Main CBA Bottom View
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.
WF6
PIN 19 OF
CN302
WF5
5V-S
JS307
PIN 17 OF
CN302
JS803
WF4
J172
PIN 15 OF
GND
CN302
WF7
PIN 13 OF
CN302
WF2
TU301
TU302
PIN 8 OF
CN302
D302
D301
D803
WF3
WF3
PIN 6 OF
PIN 6 OF
CN302
CN302
WF1
WF1
PIN 4 OF
PIN 4 OF
CN302
CN302
R679
GND
C827
J121
A-MUTE
J118
S-SW
J115
C825
C833
4
DVD-LED
5
J087
C834
P-ON-H1-SW
P-ON+9V
J085
J083
GND
C838
D807
J080
GND
Q801
J078
SP-GND
J076
SP-GND
R815
R840
J072
AMP-L-HP
C806
J066
AMP-R-HP
J063
GND
E
4A/125V
R226
Q207
7.0Vfor1.0V
J204
P-ON+5.0V
J193
R228
Q208
32V-A
D304
32V-S
5V-A
JS305
JS308
R229
TU+5V
J189
JS306
J187
GND
JS309
for S
J182
GND
GND
J180
C303
PANEL+24.5V
J179
D303
VGL-5.5V
J177
J171
TU+5V
VGH+25.6V
J173
L301
R213
P-ON-H1
J169
PROTECT1
J167
TUNER
from P-ON-H2
J165
PROTECT2
J162
S
A
TU+5.0V
J161
P-ON 3.3V
J170
R252
GND
J154
J149
LCD SW
J159
ALL+3.3V
P-ON+5.0V
J151
J155
SCL
J150
J146
LCD+12.5V
J152
SDA
from P-ON-H2
D405
PROTECT2
J147
IF-AGC
LCD+12.5V
J158
D417
D418
for RESET
J143
D660
GND
J142
R250
J141
DVD-Y
J145
J134
-7.5V
DVD-Pb
Q210
Q402
D657
J122
C647
ALL+3.3V
D204
R651
D649
D406
R253
LCD+12.5V
J111
D203
D650
Q205
J110
J108
GND
R219
DVD-MAIN-PWR
D415
P-ON-H2
J106
J098
D412
GND
J101
P-ON+5V
1
D407
J103
IC902
J100
R904
1
P-ON+5V
M+10V
4
JS103
J107
D413
5
8
ALL+3.3V
J094
8
ALL+3.3V
J091
L804
GND
26
2
12
1
5 2
C
9 N
1 0
C831
J090
C912
13
CN902
J088
GND
R926
J089
GND
C816
GND
R923
GND
J086
D905
R924
J081
R919
R925
P-ON+9V
Q905
R929
J084
Q904
R927
GND
C917
C803
C921
D903
R945
D901
D908
D902
9
D806
IC801
1
J073
D805
RIPPLE REJECTION
D665
J071
R637
AMP-L-HP
D804
J068
SP-GND
R635
C805
D813
8
1
C812
CN102
D
CAUTION ! :
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
J216
10
2
P-ON+3.3V
J212
CN201
GND
1
11
J061
4
IC201 1
J208
GND
GND
D1401
J194
Q1002
J058
VCOM-PWM
C1006
GND
Q1005
J192
GND
LCD+12.5V
R1071
J197
5
8
J191
R1072
VCOM
J185
D1006
R1019
BL-SW
C217
J190
VGL-5.5V
D1004
D1007
R1022
J184
DRIVE+12.5V
J183
C209
PROTECT3
R1017
C208
J181
Q1011
Q1001
BL-ADJ.
D1003
D1005
DRIVE+12.5V
16
IC1001
9
REF
D1402
JS1001
C1003
C1018
JS1002
1
D202
C1013
8
C1402
R1050
GND
J166
D1406
R1049
J035
C1014
J164
LCD+12.5V
GND
D1010
Q201
JS1005
J178
GND
D1045
R208
D210
Q1012
R207
D1404
Q1003
J205
D201
Q632
LCD SW
J157
J153
J027
GND
P-ON+3.3V SW
J026
GND
R245
R244
C660
5Vfor3.3V
5Vfor3.3V
Q637
+7.0V
J020
GND
J019
R665
GND
J017
R664
J104
P-ON+5.0V
Q636
Q635
C649
C648
for RESET
J014
J217
R690
+7.0V
J012
J123
R663
-7.5V
ALL+3.3V
Q634
J112
for All+3.3V
D642
R672
D655
Q643
C639
R682
R688
R689
C641
C638
Q401
J004
INV.+31V
2
J105
+7.0V
J003
1
INV.+31V
T601
R912
COLD
C605
C643
R605
D635
C604
Operation
BC601
Q602
D608
D648
Q631
J001
IC601
D646
C608
HOT
D656
C
10-16
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.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
C1554
R1506
Q1551
R1507
D1552
D1555
D1560
FET1 D
R1557
D1504
J059
C1503
J056
BC1001
FET1 S
Q1008
Q1500
J055
GND
Q1006
FET1 G
J053
FET1 S
FET2 G
J052
D1503
C1502
Q1009
R1505
J050
J048
R1504
FET2 D
J046
C1504
FB V
C1501
INV.+31V
J041
J042
INV.+31V
J039
R1556
J040
D1665
INV.+31V
D1564
INV.+31V
INV1 FB
J038
D1664
D1667
J037
D1565
for RT
1
7
+IN3
J036
DRIVE+12.5V
J034
GND
J033
J032
GND
FB V
J031
D1602
C1605
8
14
D1765
D1603
D1013
D1767
R1606
R1607
D1764
C1603
C652
FET3 D
J028
D1604
Q1600
R1609
R670
J021
C1602
FET4 D
J023
J022
R1605
D1600
R1604
R671
C1604
J018
BC1002
INV.+31V
D1658
J016
INV.+31V
J015
D1752
INV2 FB
R1657
D1661
D1763
R1757
D1756
GND
J013
D1761
J109
C1705
GND
D1704
J156
GND
R1706
R1707
C1703
FET5 D
J011
C631
Q1700
C632
FET6 D
J008
C636
C1702
D633
D1700
+31V
J007
C633
C1701
+31V
J006
D1760
D1750
C1704
R1704
Q1750
R1705
D653
R1709
J005
INV3 FB
D632
BC1003
HOT
C603
F601
4A/125V
J002
R603
FH601
FH602
R604
R606
HOT
AC601
B
A
5
D1562
D1554
D1551
D1652
4
C1651
D1655
D1650
D1754
C1752
D1753
3
C1751
C1750
D1755
2
COLD
L601
1
CN801A
D808
COLD
BA0171F01013
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Table of Contents
Troubleshooting
