JVC KS-AX7300 User manual
SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD. No.49808
2003/03
KS-AX7300
POWER AMPLIFIER
49808200303 KS-AX7300
TABLE OF CONTENTS
1 Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
3 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Area suffix
J ------------ Northern America
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TEL 13942296513 QQ 376315150 892498299
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KS-AX7300
1-2 (No.49808)
SECTION 1
Important Safety Precautions
1.1 Safety Precautions
!Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.
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TEL 13942296513 QQ 376315150 892498299
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KS-AX7300
(No.49808)1-3
SECTION 2
Disassembly method
CAUTION:
If electricity is connected during disassembly, it must be a no
load current. If it is load current, be sure to attach a heat sink
to the power-amp IC. This will be damaged if the above
precautions are not followed, as it does not have a sub heat
sink attached to it.
2.1 Removing the bottom cover (see Fig. 1)
(1) From the bottom side of the main unit, remove the 4 screws
Aretaining the bottom cover.
(2) Then remove the 6 screws Bretaining the bottom cover.
(3) Remove the bottom cover.
Fig.1
2.2 Removing the Main board (see Fig. 2 to 8)
(1) Remove the bottom cover from the main unit.
(2) Loosen and remove the 2 screws Cretaining the top plate
on the main unit. (Stoppers are attached to the backs of the
Cscrews so that they cannot be removed easily.)
(3) Remove the 6 volume knobs on top of the control panel. If
it cannot be pulled out easily, insert a scale or suitable lever
between the base of the volume knob and the control panel
so that the volume knob is raised a little above the surface
and then remove it.
(Be careful when inserting a lever etc. not to scratch
the surface of the control panel).
(4) Remove the 4 screws Dretaining the control panel. Then
detach the control panel and the switch knobs.
Fig.2
Fig.3
Fig.4
Bottom cove
r
B
A
A
B
Top plate
CC
Volume knob
D
Switch knob
Control panel
D
(Side view)
Scale or suitable lever
Volume knob
Control panel
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TEL 13942296513 QQ 376315150 892498299
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KS-AX7300
1-4 (No.49808)
(5) Remove the 6 screws Eretaining the panels on both sides
of the main unit.
(6) Remove the 10 screws Fattaching the Main board to the
bottom of the main unit.
(The GND wire that protrudes from the Main board
must be re-installed to its original position during re-
assembly.)
(7) To remove the wire ass'y, lift up the Main board a little.
Fig.5
Fig.6
Fig.7
Fig.8
Rear panel
E
Front panel
E
GND wire
MAIN PCB
F
F
MAIN PCB
Wire ass'y
(Side view)
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TEL 13942296513 QQ 376315150 892498299
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KS-AX7300
(No.49808)1-5
2.3 Removing the CCFL board (see Fig. 9 to 12)
(1) Remove the bottom cover.
(2) Then remove the Main board.
(3) From the bottom side of the main unit, remove the 4 screws
Gretaining the CCFL cover.
(4) Then remove the insulation sheet on top of the CCFL
board.
(5) Remove the 4 screws Hretaining the CCFL board.
(6) Remove the CCFL board by sliding it a little towards the
arrow mark.
Fig.9
Fig.10
Fig.11
Fig.12
CCFL cover
G
G G
CCFL PCB
Insulation sheet
H
CCFL PCB
H
This section is cought
by the portion.
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TEL 13942296513 QQ 376315150 892498299
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KS-AX7300
1-6 (No.49808)
SECTION 3
Adjustment
3.1 Adjustment method
(1) Check the voltage and frequency of the secondary toroidal
coil.
FREQUENCY:24.35kHz ± 50Hz
VOLTAGE VALUE:55Vp-p
(2) Measure the secondary toroidal coil, if the standard
frequency value of 24.35 kHz ± 50 Hz is not attained,
measure the R760 terminal, then adjust the VR701 so that
the R760 terminal becomes 24.25 kHz ± 30Hz.
NOTE:
When measuring, adjust and apply power with no
signal or load on each board.
DC/DC CONVERTER SECOND GENERATOR SWITCHING
TEST SET
FREQUENCY COUNTER
Main board
(+)
(
-
)
POWER SUPPLY
14.4V
R760
Measuring
Points
Main board
55Vp-p
±2.5V
TEST ITEM
VOLTAGE TEST
FREQUENCY CHECK
55Vp-p±2.5V
24.350KHz±30Hz
OSCILLOSCOPE
VOLT/DIV: 10
TIME/DIV: 10mcec
SPECIFICATION CONDITION
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
(No.49808)
AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
VICTOR COMPANY OF JAPAN, LIMITED
200303WPC
Printed in Japan
KS-AX7300
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TEL 13942296513 QQ 376315150 892498299
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SCHEMATIC DIAGRAMS
POWER AMPLIFIER
No.49808SCH
2003/03
COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
KS-AX7300
KS-AX7300
Area Suffix
J Northern America
Contents
Block diagrams
Standard schematic diagrams
Printed circuit boards
2-1
2-2
2-8~11
CD-ROM No.SML200303
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
KS-AX7300
!Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.
Safety precaution
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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KS-AX7300
2-1
DEFG
Block diagram
FRONT
R-IN
L-IN
R
L
FRONT
HI-INPUT
INPUT
AMP
U101
-A
U101
-B
U102
-A
U102
-B
U106
-A
U206
-A
VR103A
VR103B
BOOST 0-12dB CROSSOVER
U103
-A
U103
-B
U104
-A
U104
-B
VR102A
VR102B
U105
-A
U105
-B
SW101A
SW101B
LPF
HPF
OFF
LPF
HPF
OFF
Q101
-111
Q201
-211
FRONT
R-OUT
L-OUT
POWER
INPUT
+12V
D.C.
REM
F01,F02
Q701
Q702 U701
POWER
CONTROL
Q730,Q731
Q745,Q746
Q755,Q756
Q747,Q757
POWER
REGULATOR
T701
U703
U704
TRANS
& REGULATOR
+/-15V
VCC
VEE
Q150
Q250
MUTE
CONTROL
Q705
-708
Q116,Q216
Q317,Q318
PROTECT
REAR
R-IN
L-IN
R
L
REAR
HI-INPUT
INPUT
AMP
U301
-A
U301
-B
U302
-A
U302
-B
U306
-A
U406
-A
VR303A
VR303B
U303
-A
U303
-B
U304
-A
U304
-B
VR302A
VR302B
U305
-A
U305
-B
SW301A
SW301B
LPF
HPF
OFF
LPF
HPF
OFF
Q301
-311
Q401
-411
REAR
R-OUT
L-OUT
Q350
Q450
MUTE
CONTROL
Q316,Q416
Q319,Q320
PROTECT
VR101B
VR101A
VR301A
VR301B
VR302C
VR302D
VR102C
VR102D
7
6
2 2
1 1
6
7
POWER
AMP
6
7
POWER
AMP
2 2
1 1
7
6
Q790
V-IN INVERTER LOAD
CCFL
board
Q780
VR701
31 3131
6731
57
312121
576767
3131
6731
312121
576767
31
57
Q747,Q757 : KS-AX6500 only
VARIABLE/INV.CIRCUIT(Gain1)/Amplifier 50-250Hz 12dB/OCT VARIABLE
BOOST 0-12dB CROSSOVER
VARIABLE/INV.CIRCUIT(Gain1)/Amplifier 50-250Hz 12dB/OCT VARIABLE
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TEL 13942296513 QQ 376315150 892498299
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KS-AX7300
2-2
5
4
3
2
1
ABCD
1
2
3
45
7
61
2
3
45
CROSSOVER(50-250Hz 12dB/OCT VARIABLE)
CROSSOVER(50-250Hz 12dB/OCT VARIABLE)
BOOST 0-12dB VARIABLE
BOOST 0-12dB VARIABLE
HI-INPUT
U103-A
C128
R211
R138
U101-A
C121
C122
RCA01-A
R102
C212
C213
C103
C102
R101
R213
U104-B
R215
U105-B
R217
C106
C210 C211
R118
U106-A
R206
R108
R230
R216
C105
R240
R114
R130
R113 U104-A
R208
C207
C204 R209
R115
U105-A
C225 R210
R13
1
C127
C208
R205
R104
R203
R212
R117
C201
C110 C111
C113
C107
R109
U206-B
VR101A
C206
R201
C202
C203
C101
C125
C108
R110
R
R111
R112
R204
R116
U102-A
R202
U102-B
VR101B
R239
C117
R135
C112
U101-B
VR104B
C115
R218R234
U103-B
R137
R214
C209
R139
R140
R103
C109
R134
R136
R236
C216
VR104A
R105
C116
C104
R238
R237
R106
C215
U206-A
R235
C217
C205
C297
C296
C197
C196
R295
R195
R297
R197
R296
R196
HI101
U106-B
C123
R194
R294
C124
+
-
-
+
NJM2068LD
1
3
2
4
473P
12K
330K
8
3
21
NJM2068LD
104P
104P
KJB-582C 20.5KF
10/16V
10/16V
103P
4.7/50V
22KF
M
U
10K
NJM2068LD
7
5
6
4
10K
NJM2068LD
7
5
6
4
10K
22P
473(M) 473(M)
15K
8
3
21
NJM2068LD
56KF
1K
22K
15K 50KC
100P
680K
10K
50KC
22K
10K NJM2068LD
1
3
2
4
1K
470P
22P
1K
10K
NJM2068LD
1
3
2
4
4.7/50V 15KF
22K
473P
10P
56KF
470F
22KF
56KF
10K
4.7/50V
473(M) 473(M)
10/16V
470P
1K
8
5
67
NJM2068LD
20KB
22P
22KF
4.7/50V
103P
4.7/50V
4.7/50V
27P
15K
2
11KF
30KF
470F
15K 50KC
8
3
21
NJM2068LD
20.5KF
NJM2068LD
7
5
6
4
20KB
5.6K
47P
1K
10/16V
8
5
67
NJM2068LD
20KB
224(M)
15K1K
NJM2068LD
7
5
6
4
20K
10K
47P
5.6K
680K
22KF
47P
50KC
1K
1K
1K
183(M)
20KB
56KF
183(M)
22P
330K
20K
56KF
224(M)
8
3
21
NJM2068LD
1K 47P
100P
2.2/50V
2.2/50V
2.2/50V
2.2/50V
22KF
22KF
56KF
56KF
56KF
56KF
?
8
5
67
NJM2068LD
100/16V
470/0.5W
470/0.5W
100/16V
FRONT
R-IN
L-IN
FLAT
Standard schematic digrams
Amp section 1
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TEL 13942296513 QQ 376315150 892498299
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KS-AX7300
2-3
DEFG
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
L ch SIGNAL
R ch SIGNAL
6
7
Q211
Q210
R170
C212
C213 C214
SW101B
R241
R169
Q111
Q110
05-B
R278
C245
R273
R276
C248
R275
C240
Q209
Q208
R267
R222
R266
Q206
R264
Q207
Q205
R253
R254
R255
R257
R259R258
R142
R261R260
R262
C241
R265
11
R165
R162
R160 R161
R233
R158
C143
C141
R159
R157
Q101 Q102
Q104
Q103
R153
R155
R232
R277
R230
R154
Q105
Q107
R164
D201
Q106
R166
R163
R167
Q108
Q109
R156
C148
R175
R141
R176
R173
R178
C145
R177
R290
D101
C144
R130
SW101A
Q203 Q204
Q202Q201
C243
C246
C140
Q216
C249
R131
C120
C146
P2
R242
Q116
R132
C111
C113
C114
R190
C149
C220
R256
C242
C142
R231
C112
R269
R270
Q317
C147
Q318
C244
C219
C119
R143
Q150
Q250
R249
R133
B688
D718
0.1/3W
10/16V
10/16V 10/16V
JSS2319
MUTE
5.6K
0.1/3W
B688
D718
2
068LD
7
4
4.7/0.5W
104(M)
1.5K
13.7KF
100/16V
1KF
330/16V
KTA1023Y
KTC1027Y
220
47
47
KTC3198GR
4.3K
C3200GR
KTA1266GR
1K
4.3K
4.3K
1K
2222
22K
2222
1K
330/16V
2.4K
M)
2.4K
1K
22 22
100K
22
220P
330/16V
22
1K
KTC3198GR KTC3198GR
KTA1266GRKTA1266GR
1K
4.3K
22K
15K
22K
4.3K
KTA1266GR
C3200GR
4.3K
1N4148
KTC3198GR
47
47
220
KTC1027Y
KTA1023Y
1K
100/16V
1KF
5.6K
13.7KF
1.5K
4.7/0.5W
104(M)
15K
56K
1N4148
33P
22K
JSS2319
KTA1266GR KTA1266GR
KTC3198GRKTC3198GR
220P
104P
1
4
330/16V
KTC3200GR
473(M)
22K
100P
104P
KTD-9214
22K
KTC3200GR
22K
473(M)
10/16V
10/16V
56K
473(M)
100P
1K
220P
220P
22K
10/16V
0.1/3W
0.1/3W
KTC3198GR
220/16V
KTC3198GR
33P
4.7/50V
4.7/50V
10K
J108
J108
10K
100K
LPF
LPF
FLAT
FLAT
HPF
HPF
-15V
+15V
LOUT
ROUT
+15V
-15V
VEE
VEE
PROTECTION
VCC
VCC
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
KS-AX7300
2-4
5
4
3
2
1
ABCD
1
2
3
45
7
61
2
3
45
CROSSOVER(50-250Hz 12dB/OCT VARIABLE)
CROSSOVER(50-250Hz 12dB/OCT VARIABLE)
BOOST 0-12dB VARIABLE
BOOST 0-12dB VARIABLE
HI-INPUT
R396
R395
R497
R397
R496
C323
HI301
R394
C324
C497
C496
C397
R430
C
4
C413
R330
C
C1
C409
C309
R494
R336
R436
U303-A
R411
R338
U301-A
C321
C322
RCA03-A R302
C303
C302
R301
C306
R304
C301
R303
R305
C304
R306
C405
R406
C404
R405
R403
C401
R404
R418
U303-B
R414
R413
U304-B
R415
U305-B
R417
C410 C411
R318
U306-A
R308
R416
C305
R440
R314
R313 U304-A
R408
C407
R409
R315
U305-A
C425 R410
C408
R412
R317
C310 C311
C307
R495
R309
U406-B
VR301B
C406
R401
C396
C402
C403
C325
C308
R310
R311
R312
R316
U302-A
R402
RCA03-B
U302-B
VR301A
R439
C317
R335
U301-B
VR304B
C315
R434
R337
R339
R340
R334
C416
VR304-A
C316
R438
R437
C415
U406-A
R435
C417
U306-B
+
-
-
+
56KF
22KF
56KF
56KF
56KF
100/16V
470/0.5W
100/16V
2.2/50V
2.2/50V
2.2/50V
22K
10/
1
10/16V
22K 1
0
10/
1
47P
47P
470/0.5W
1K
1K
NJM2068LD
1
3
2
4
12K
330K
8
3
21
NJM2068LD
104P
104P
KJB-582C 20.5KF
103P
4.7/50V
22KF
22P
470F
4.7/50V
22KF
56KF
22P
56KF
100P
56KF
22P
56KF
22KF
4.7/50V
470F
15K
NJM2068LD
7
5
6
4
10K
50KC
10K
NJM2068LD
7
5
6
4
10K
NJM2068LD
7
5
6
4
10K
473(M) 473(M)
15K
8
3
21
NJM2068LD
1K
15K 50KC
100P
680K
10K
50KC
10K NJM2068LD
1
3
2
4
1K
470P
1K
10K
NJM2068LD
1
3
2
4
4.7/50V 15KF
10P
56KF
10K
473(M) 473(M)
470P
22KF
1K
8
5
67
NJM2068LD
20KB
22P
22KF
2.2/50V
4.7/50V
103P
4.7/50V
27P
15K
11KF
30KF
15K 50KC
8
3
21
NJM2068LD
20.5KF
NJM2068LD
7
5
6
4
20KB
5.6K
47P
1K
8
5
67
NJM2068LD
20KB
224(M)
1K
20K
5.6K
680K
1K
183(M)
20KB
183(M)
330K
20K
224(M)
8
3
21
NJM2068LD
1K 47P
8
5
67
NJM2068LD
REAR
R-IN
L-IN
FLA
T
Amp section 2
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
KS-AX7300
2-5
DEFG
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
L ch SIGNAL
R ch SIGNAL
6
7
L
E)
R443
Q450
C339
C419
R343
Q350
R333
R432R431R430
C412
C413 C414
R330
R331 R332
C313 C314
C112
C444
R470
R469
C342
C442
SW301B
R456
C420
C349
U305-B
R390
C411
R433
Q316
R442
C346
C320
C449
Q416
C340
SW301A
C446
C443
Q401 Q402
Q404Q403
C344
D301
C311
R490
R377
C345
R378
R373
R376
R375
C348
R356
Q309
Q308
R367
R363
R366
Q306
D401
R364
R307
Q305
R354
R477
C147
Q319
R355
R353
Q303 Q304
Q302Q301
R357
R359
C341
C343
R358
R361R60
R362
R365
R465
C441 R462
R460 R461
R342
R458 R459
R457
Q320
R455
R454
R453
Q405
Q407
R464
Q406
R466
R463
R468
Q408
Q409
C440
R475
C448
R476
R473 C445
R478
Q310
Q311
R369
R441
R341
R370
Q410
Q411
10K
J108
4.7/50V
4.7/50V
10K
J108
100K
MUTE
22K22K22K
10/16V
10/16V 10/16V
22K
22K 22K
10/16V 10/16V
10/16V
33P
0.1/3W
0.1/3W
220P
220P
JSS2319
1K
100P
473(M)
NJM2068LD
7
4
56K
473(M)
100K
KTC3200GR
22K
KTD-9214
104P
100P
473(M)
KTC3200GR
330/16V
JSS2319
104P
220P
D
1
4
KTC3198GR KTC3198GR
KTA1266GRKTA1266GR
33P
1N4148
473(M)
56K
15K
104(M)
4.7/0.5W
1.5K
13.7KF
1KF
100/16V
1K
KTA1023Y
KTC1027Y
220
47
47
KTC3198GR
1N4148
4.3K
C3200GR
KTA1266GR
4.3K
15K
220/16V
KTC3198GR
4.3K
1K
KTA1266GRKTA1266GR
KTC3198GR
KTC3198GR
1K
22
330/16
220P
22
22
22
1K
2.4K
2.4K
330/16V
1K
22 22
22K
22 22
1K
KTC3198GR
4.3K
4.3K
1K
A1266GR
C3200GR
4.3K
KTC3198GR
47
47
220
KTC1027Y
KTA1023Y
330/16V
1KF
100/16V
13.7KF
1.5K 104(M)
4.7/0.5W
D718
B688
0.1/3W
5.6K
5.6K
0.1/3W
D718
B688
LPF
LPF
FLAT
FLAT
HPF
HPF
+15V
-15V
LOUT
ROUT
+15V
-15V
VEE
VEE
PROTECTION
VCC
VCC
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
KS-AX7300
2-6
5
4
3
2
1
ABCD
%%(.
Q801
R802
C804
Q702
C801
R744
R754
C719
C720
C701
R746
R756
R725
R742
D711
R755
R745
Q731
D710
Q730
R743
R701
C717
C741
R741
C740
R740
U701
R734
C722R733Q708
R732C721
R731R730
R726D705
C718R719
R720
R716
Q707
Q706
Q705
D801C803
R702
Q701
R703
D702
R704
R705
C716
R718
R717
TH01
R715
C715
R804
LED01R752
Q710
R750
R751
C794
VR701
T02
Q802
R803
Q803
C802
L801
R801
PROTECTION
C1027Y
4.7M/0.5W
104P
OUT1
KTC3198GR
473(M)'100V
1K
1K
100/16V
104P
10/16V
100
100
V-IN
10
220/0.5W
1N4148
100
100
KTA1266GR
1N4148
KTA1266GR
220/0.5W
100/0.5W
47/16V
100/25V
24KF
102(M)"STICON"
27K
TL494CN
15K
47/25V15KKTA1268GR
33K10/25V
22K1K
5101N4148
100/16V10K
10K
51KF
KTC3198BL
KTA1266GR
KTA1266GR
1N5241103P
4.7K
KTA1023Y
4.7K
1N4004
4.7K
10K
100/16V
4.7K
4.7K
50KTH
140KF
104P
200
GND
KLR-124E1.5K
KTC3198GR
27K
12K
100/16V
2K
C1027Y
4.7M/0.5W
C2690Y
18P/3KV
CL-10
1.5K/0.5W CL-1617
16 15 14 13 12 11 10 9
87654321
CCFL-INVERTER PCBOARD
2
Power supply / CCFL section
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
KS-AX7300
2-7
DEFG
R771
L701
C772
C771
5
4
Q756
C793
C773
C774
R746
R756
Q745
D735
D734
D732
D731
C762
R760
C760
C761
R790
C791
W01
C770
C769
D752
D751
Q755
T701
F01
F02
D701
R755
R745
C764
C763
U703
U704
C792
D702
C750
C752
C702
C709
C768
L710
C767
C765
C766
Q780
D770
D771
R780
R781
C781
C705C706
Q746
Q790
R791
R770
C751
R792
C778
C777
C780
R777
R778
CCFL BLOCK
LOADINVERTER
REM
GND
+12V D.C
+12V
CCFL+12V
GND
100/2W
GND
CL-310
2200/35V
2200/35V
K
K
FQP50N06
473P
473P
473P
100
100
FWP50N06
FR154x4
2.2/50V
100/2W
222(M)
2.2/50V
10K
105(M)
80m/m
2200/35V
2200/35V
YG225D2
YG225D2
FQP50N06
37PHI
KTD-9217
20A
20A
1N5404
100
100
330/16V
330/16V
O
C
I
KIA7815PI
O
C
I
KIA7915PI
105(M)
1N4004
2200/25V"RX"
104P
X
X
470/35V
CL-1113
470/35V
104P
104P
+15V
-15V
J108
1N4148
1N4148
220K
10K
10/50V
VCC
VEE
MUTE
47/16V104P
FQP50N06
TIP117
2.2/0.5W
100/2W
2200/25V"RX"
2.2K
2.2/50V
2.2/50V
22P
10K/0.5W
10K/0.5W
(0.7X10:0.7X5)
6T
12T
12T
6T
2
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
KS-AX7300
2-8
5
4
3
2
1
ABCD
TER03TER02
C770
C771 C772
C769
VR701
Q307 Q407
Q107 Q207
L710
LED01
U101
U301
R760
C740
W01
D701
CCFL
Q311 Q310 Q410Q411
Q210Q110 Q211Q111
R756
R755
R745
R746
L701
F01
L201
L302
L301
L202
L402
L401
L102
L101
BJ101
C768
C767
D732
D735
D731
D734
D702
C124
C314
C794
C741
C313
C123
C719
C718
D301
D201
D101
D704
D401
D710
D711
C764
C763
C241
C440
C341
C240
C340
C141
C441
C702
C140
C793
C791
C709
TH01
U701
Q790
R494
R194
R294
R278
R394
R791
R777
R750
R742
R701
R778
R478
R178 R378
R743
R369
R370
R470
R469
R270
R269
R169
R170
T701
RCA01
R771
R770
D752
U703
U704
Q746
Q745
Q755
Q756
D751
C751
C750
Q710
Q320
Q319
Q316
Q308
Q309
Q305
Q304
Q303
Q306
Q302
Q301
Q350 Q450
Q401
Q402
Q406
Q403
Q404
Q405
Q409
Q408
Q250
Q201
Q202
Q206
Q203
Q204
Q205
Q209
Q208
Q216
Q318
Q317
Q116
Q108
Q109
Q105
Q104
Q103
Q106
Q102
Q101
Q780
Q702
Q708
Q707
Q705
Q701
Q706
Q730
Q731
Q416
Q150
D770
D771
C777
C778
C795
C780
C792
C306
C405
C321
C305
C304
C322
C404
C406
C346
C342
C343
C320
C344
C444
C420
C443
C442
C244
C220
C243
C242
C246C146
C142
C143
C120
C766
C765
C706
C720
C715
C774
C752
C446
C144
C773
C206
C204
C205
C106
C104
C105
C121
C122
C497
C197
C297
C397
C396
C296
C496
C196
C302
C301
C401
C402
C347
C348
C319C419
C219
C147
C148
C248
C119
C761
C762
C448
C781
C705
C722
C721
C717
C701
C202
C201
C101
C102
C490
C390
C291
R780
R781
R751
R752
R395
R495
R396
R397
R496
R497
R196
R297
R296
R295
R790
R133
R792
R306
R303
R302
R405
R402
R406
R305
R403
C290
R301
R390
R490
R367
R373
R364
R365
R353
R377
R363
R366
R356
R362
R357
R360
R358
R361
R359
R342
R343
R341
R355
R354
R333
R375
R376 R476
R475
R433
R454
R455
R441
R443
R442
R459
R461
R458
R460
R457
R462
R456
R466
R463
R276
R275
R233
R254
R255
R241
R243
R242
R259
R261
R258
R260
R257
R262
R256
R266
R263
R264
R265
R267
R273
R277
R153
R290
R190
R177
R173
R167
R165
R164 R163
R166
C491
R156
C391
R477
R162
R157
R160
R158
R161
R159
R142
R143
R141
R155
R154
R782
R453
R465
R464
R754
R744
R705
R704
R734
R733
R732
R731
R730
R726
R717
R718
C191
R719
R725
R720
R740
R716
R703
R715
R741
R702
R253
R197
R473
R467
R175
R176
R195
R401
R206
R203
R205
R202
C190
R106
R105
R103
R102
R201
R101
C716
C245
C349
C249 C149
C445
C345
C145
C760
C449
TER01
Printed circuit boards
Main board (forward side)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
KS-AX7300
2-9
DEFG
9+4'
FRONTREAR
RLR
L
-- --
++ ++
EEE
EC CC
CB BB
B
BB B
B
CC C
C
EE E
E
R
L
L-OUT
R-OUT
GND
-15V
+15V
R-F IN
L-F INL-F OUT
R-F OUT
+15V
-15V
GND
L-IN
R-IN
REAR
SUB1SUB2
FRONT
L-F IN
R-F IN
+15V
-15V
GND
R-OUT
L-OUT
R-IN
L-IN
GND
-15V
+15V
R-F OUT
L-F OUT
+-
U301
U101
C220
C445
TER03 TER02
C770
C771
C772
C769
VR701
U703 U704
Q746
Q745
Q755
Q756
D751 D752
T701
LED01
R760
C740
W01
D701
CCFL
C143
L701
F01
RCA01
BJ101
C768
C767
D732
D735
D731
D734
D702
C102
C497
C197
C297
C397
C496
C196
C302
C301
C401
C402
C347
C348
C319 C419
C219
C147
C148
C248
C119
C761
C762
C448
C781
C705
C722
C721
C717
C202
C201
C101
D301
D201 D101
D704
D401
D710
D711
C764
C763
C241
C440
C341
C240
C340
C141
C441
C702
C140
C793
C791
C709
TH01
U701
Q790
C718
C716
C124
C314
C794
C741
C313
C123
C719
R369
R370 R470
R469
R270
R269
R169
R170
L710
Q311
Q310
Q410 Q411
Q210 Q211 Q111
Q110
C751
C750
C122
C792
C306
C405
C321
C305
C304
C322
C404
C406
C303
C346
C342
C343
C320
C344 C444
C420
C443
C442
C244
C243
C242
C246 C146
C142
C120
C766
C765
C706
C720
C715
C774
C752
C446
C144
C773
C206
C204
C205
C203
C403
C106
C104
C105
C103
C121
Q307Q407
Q207 Q107
D770 D771
R756
R755
R745
R746
R494 R194
R743
R294
R278
R394
R791
R750
R742
R701
R478 R178
R378
C449
C245
C349
C249C149
C345
C145
C760
Q150
Q710
Q320
Q319
Q316
Q308
Q309
Q305
Q304
Q303
Q306
Q302
Q301
Q350
Q450
Q401
Q402
Q406
Q403
Q404
Q405
Q409
Q408
Q250
Q201
Q202
Q206
Q203
Q204
Q205
Q209
Q208
Q216
Q318
Q317
Q116
Q108
Q109
Q105
Q104
Q103
Q106
Q102
Q101
Q780
Q702
Q708
Q707
Q705
Q701
Q706
Q730
Q731
Q416
C396
C701
C296
R780
R781
R751
R752
R395
R495
R396
R397
R496
R497
R196
R297
R296
R295
R790
R133
R792
R306
R303
R302
R405
R402
R406
R305
R403
R304
R301
R404
R390
R490
R367
R373
R364
R365
R353
R377
R363
R366
R356
R362
R357
R360
R358
R361
R359
R342
R343
R341
R355
R354
R333
R375
R376R476
R475
R433
R454
R455
R441
R443
R442
R459
R461
R458
R460
R457
R462
R456
R466
R463
R276
R275
R233
R254
R255
R241
R243
R242
R259
R261
R258
R260
R257
R262
R256
R266
R263 R264
R265
R267
R273
R277
R153
R290
R190
R177
R173
R167
R165
R164R163
R166
R156
R101
R477
R162
R157
R160
R158
R161
R159
R142
R143
R141
R155
R154
R453
R465
R464
R754
R744
R705
R704
R734
R733
R732
R731
R730
R726
R717
R718
R719
R725
R720
R740
R716
R703
R715
R741
R702
R253
R197
R473
R467
R175
R176
R195
R401
R206 R203
R205
R202
R204
R106
R105
R103
R102
R104
R201
Main board (reverse side)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
KS-AX7300
2-10
5
4
3
2
1
ABCD
L801
Q801
R802
C804
Q803
C802
T02
J101
C805
R804
C803
Q802
R801
D801
C801
GND(BLACK)
+12V(RED)
R430
R317
C413
R330
R432
R332
C414
C314
C313
R315
C312
CON01
C309
R314
R313
R413
R431
C412
R331
R418
R417
R415
C409
R414
U303
R318
R416
R316
C410C310
C411C311
U304
U305
VR302
VR102
SW301
SW101 U103
U104
U105
R213
CON02
R113
C113
C213
R130
R230 R117
R217
C210C110
R216
R116
R118
R218
R115
R114 R214
R215
C109 C209
C111 C211
C212
C112
R131
R231
R132
R232
C214
C114
VR101 R412
R439
R440
C416
R340
R437
R438
R339
C316
R338
R436
C417 R434
R336
R337
C317
C408
C415
R435
C315
R335
R334
C308
R311
U302
R409
C325
R308
C307
R408
C407
R309
C425
R410
R411
R310
R312
U306
U406
CON03
VR301
C207
R208
R108
VR303VR103
C107 R109
U206
U102
U106
R209
R111
R112
R110
C125
C225
R210
R211
R212 C208
C108
R234
R134
R135
R136
R137
C115
C117
R138
C116
R140
R139 C216
C215
R240
R239
R235
R237
C217
R238
R236
CON04
PAS113-01
Sub board (forward side)
CCFL board
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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1
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