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SCHEMATIC DIAGRAM (AMP for 750,730/CA)
SG491
L4960
L-R
Y
2012SGX
2.2U
CN490
MONITOR OUT
IC490
C4976
0.01
C4961
Y
22P
SH_GND
L4961
CN491
8
7
2.2U
C4965
R4923
SH_GND
10K
22P
Y
C4921
100P
L4962
C
2.2U
C4968
Y
C4977
22P
0.01
SH_GND
C4972
R4553
100P
39K
R
TV_R
R4552
12K
IC491
C4973
R4503
100P
39K
L
TV_L
R4502
8
7
12K
C4978
0.01
CN492
C4974
R4557
100P
39K
SH_GND
R
AUX_R
R4556
12K
C4975 R4507
100P 39K
L
AUX_L
R4506
12K
Q4906
KTD1304
R4977
R4907
1K
6.8K
R4906
4.7K
R4978
7
1K
Q4907
R4904
R4901
KTD1304
47K
10K
Q4512
Q4513
KTC3875
KTC3875
Q4510
Q4511
KTC3875
KTC3875
8
Q4514
KRA107S
FUNCTION
Q4504
V_SW
11
KTD1304
DVD
GND
10
S-C
TV
9
GND
8
AUX
S-Y
7
TUNER
GND
6
C-Y
5
V_SW
GND
4
Q4503
S-C
KTD1304
S-C/CB
3
S-Y
GND
2
C-Y
1
2
3
4
5
6
7
8
S-Y/CR
1
S-C/CB
11
CN498
S-Y/CR
FUNCTION
IC450
CD4052BCM
C4500
5Va
4.7/50
5V
A_GND
R4511
16 15 14 13 12 11 10 9
DVD_9V
9V
15K
KRC107S
D_GND
47K
DAC_5V
R4512
5V
100K
5Vd
D5V
V_GND
Q4500
V_SW
V_SW
KRC107S
C-Y
47K
C-Y
S-C/CB
S-C/CB
10K
S-Y/CR
S-Y/CR
COMPOSITE
COMP
C4501
0.01
SUBWOOFER
SUBW
SUBWOOFER
C4980
10/50
CENTER
CENT
C
C4981
10/50
R4305
47K
SURROUND-R
SR_R
SURR-R
C4982
10/50
SURROUND-L
Q4302
SR_L
SURR-L
KTC3875
R4306
C4983
10/50
100K
FRONT-R
FR_R
FRONT-R
C4984
10/50
C4303
FRONT-L
0.01
FR_L
FRONT-L
C4985
10/50
REQUEST
1
REQUEST
DVD-MUTE
D-MUTE
2
DVD-CLOCK
DVD-CLK
DVD-DATA-OUT
3
DVD-DO
DVD-DATA-IN
DVD-DI
4
READY
R4303
100K
READY
5
R4304
100K
LED-5.6V
16
16
+5.6V
6
R4334
15
RESET
15
R4324
100K
RESET
0
7
14
STANDBY-LED
14
STANDBY
KEY0
13
13
KEY0
READY
8
12
IR
12
IR
DVD-CLK
9
11
STB
11
DRV-STB
R4331
R4332
DVD-DI
10
10
VFD-CLK
10
DRV-CLK
4.7K
0
9
DATA-OUT
9
11
DRV-DI
DVD-DO
8
DATA-IN
8
DRV-DO
12
R4360
1K
DRV-STB
7
JOG-DOWN
7
JOG_DN
R4361
1K
13
JOG-UP
DRV-CLK
6
6
JOG_UP
5
DRIVER 5V
5
14
DR-5V
DRV-DO
4
GND
4
15
DRV-DI
-30V
3
3
-30V
REQUEST
16
2
FL1
2
FL1
1
FL2
1
FL2
16
CN496
11
+12V
1
+12V
IR
10
5.6V
2
+5.6V
R4371
R4374
9
TU-R
3
TU-R
*
*
8
A-GND
4
7
TU-L
5
TU-L
R4372
6
TU_DO
6
TU_DO
*
*
R4375
TU_CE
5
7
TU_CE
4
TU_DATA
8
TU_DATA
3
TU_CLK
9
TU_CLK
SH401
LUG03
LUG04 LUG05 LUG06
LUG09
LUG10
RDS
2
10
RDS_IN
1
1
1
1
1
1
1
1
DIST
11
TU_DIST
CN497
11
TUNER PWB
CN499
1
TO CN202
1AD4W30B45100
This is a basic schematic diagram.
L/R-BUFFER
IC460
KIA4558F
KIA4558F
KIA4558F
KIA4558F
6
5
4
3
2
1
8
7
6
5
4
3
2
1
R4931
C4600
C4601
22K
100P
100P
R4611
12K
Q4920
R4603
KTD1304
12K
Q4921
KRA107S
SL/SR-BUFFER
KIA4558F
KIA4558F
IC470
KIA4558F
KIA4558F
6
5
4
3
2
1
8
7
6
5
4
3
2
1
C4700
C4701
100P
100P
R4711
12K
R4703
12K
C/SW-BUFFER
MATRIX SURROUND
/OFF
IC480
KIA4558F
KIA4558F
R4962
6.8K
Q4902
R4905
KRC107S
10K
6
5
4
3
2
1
8
7
6
5
4
3
2
1
C4801
C4800
100P
0.1
R4811
IC493
R4803
6.8K
CD4066BCM
CD4066BCM
12K
Q4905
9
10
11
12
13
14
KRA107S
R4964
R4902
6.8K
10K
R4903
KRC107S
3.3K
Q4911
A
B
L
L
L
H
H
L
H
H
1
2
3
4
IC495
KIA4558F
Q4501
8
7
6
5
10K
L4300
10U
R4301
47K
R4302
4.7K
D4300
MPG06G
Q4300
KTA1271
R4315
4.7K
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
C4313
1000P
R4320
SEL0
48
KEY0
10K
SHIFT
47
C4315
ROM_CLK
46
TU_CE
1000P
KEY0
ROM_DATA
KEY1
TU_DATA
45
TU_DATA
TU_CE
VSEL_A
TU_CLK
44
TU_CLK
VSEL_B
TU_DO
43
TU_DO
PRO-3dB
RDS_IN
42
RDS_IN
IC430
DVD_RDY
TU_DIST
41
TU_DIST
DVD_CLK
M3803*M*
FUNC_A
40
FUNC_A
MICON
DVD_D_OUT
FUNC_B
39
FUNC_B
DVD_D_IN
1150_SCL
38
VOL_SCL
R4325
1K
6315_STB
1150_SDA
37
VOL_SDA
6315_CLK
MATRIX_SUR
36
MTRX-CONT
6315_IN
6315_OUT
DVD_STB
WOOFER
35
R4321
FR_HPF
34
100K
HPF
SELECTION
BASS
33
BASS
L
24H
R4318
SEL_0
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
10K
H
12H
L
TV
SEL_1
H
VIDEO2
L
W-KARAOKE
SEL_2
X4301
C4309
47P
H
W/O-KARAOKE
8MHz
L
W-ECO
P
P
SEL_3
H
W/O-ECO
X4300
32.768kHz
- 46 -
L/R-BUFFER
IC461
KIA4558F
KIA4558F
-7V
PR450
8
7
6
5
4
3
2
1
+7V
200
+12V
C4622
C4623
R4631
R4623
47P
47P
PR451
39K
200
-12V
10K
10K
47K
47K
D4580
D4581
D4582
Q4620
Q4621
MTZJ5.6B
MTZJ7.5B
MTZJ7.5B
KRC107S
KRC107S
SL/SR-BUFFER
IC471
KIA4558F
KIA4558F
GND
-VCC
+VCC
LTIN
VI-L
8
7
6
5
4
3
2
1
VDD
LTOUR
C4720
C4721
R4731
100P
R4723
100P
C4580
22K
22K
4700P
VI-R
RTIN
LTC
RTOUT
LBC1
C4585
4700P
RTC
LBC2
RBC1
LBC3
C4582
10/50
RBC2
LOUT
VO-SW
C4587
C/SW-BUFFER
10/50
RBC3
ROUT
VO-R
IC481
KIA4558F
KIA4558F
VI-SW
LIN
COUT
VO-C
8
7
6
5
4
3
2
1
RIN
SLOUT
VO-SL
C4821
C4820
R4823
100P
0.068
22K
CIN
SROUT
R4831
VI-C
VO-SR
SLIN
SWOUT
VI-SL
VO-L
SRIN
SDA
VI-SR
VOL_SDA
C4583
100P
R4593
1K
10K
SWIN
SCL
VOL_SCL
C4584
100P
47K
Q4848
KRC107S
SW-POWER
IC483
LM3876TF
11
10
9
8
7
6
5
4
3
C4862
R4848
47K
100P
C4845
3P
C4860
C4865
2.2/50
2.2/50
Q4844
KRC107S
R4861
47K
10K
Q4846
47K
KRC107S
5V REG
DAC 5V
9V REG
IC412
IC410
IC411
PQ1CG21H2RZ
PQ1CG21H2RZ
KA7805R
2.4/0
0
5.0/0
25.0
2.4/0
9.0/0
25.0
0
5.0/0
5.0/0
0
9.0/0
9.0/0
5
4
3
2
1
3
2
1
5
4
3
2
1
Q4101
Q4103
CONT
REF
GND
OUT
IN
OUT
IN
CONT
REF
GND
OUT
IN
KRC107S
P
KRC107S
P
P
P
10K
10K
P
47K
47K
0/5.0
0/5.0
0
0
L4100
210u
R4113 C4131
L4104
10u
L4103
R4105
C4122
10
100P
210u
10
100P
P
P
10K
Q4102
KRC107S
DR-5V
47K
R4150
33K
DGND VGND
GDAC
MDGND
A.GND
PR412
200
[CARBON
1/4W]
D4107
D4109
MPG06G
MPG06G
L/R-POWER
IC462
LM1876TF
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C4660
C4661
R4648
22K
39K
100P
100P
C4645
3P
KTD1304
R4649
22K
Q4641
C4646
3P
R4643
100
Q4640
KTD1304
SL/SR-POWER
IC472
LM1876TF
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C4761
C4760
100P
R4748
22K
100P
C4745
3P
KTD1304
R4749
22K
Q4741
C4746
3P
C4747
0.022
R4743
100
C4755
33/35
Q4740
[MV-WX]
KTD1304
P
P
C-POWER
IC482
LM4700TF
11
10
9
8
7
6
5
4
3
2
1
C4863
100P
10K
R4849
22K
Q4882
*
KTD1304
Q4841
R4833
100K
C4846
3P
R4866
PR420
R4213
*
125
18
NO MOUNT
+12V
R4843
[CARBON
100
1/4W]
D4201
R4215
1SS133
1K
FAN
Q4840
KTD1304
2
1
Q4207
Q4208
Q4880
R4882
KTC3875
KTC3875
*
*
R4211
4.7K
Q4881
Q4203
*
KTC3875
NO MOUNT
P
P
Q4206
KRC107S
Q4204
KRC107S
KTC3875
10K
10K
10K
Q4201
47K
47K
47K
HP-L
[SPR1W]
HP_L
R4050
GND
330
HP-R
HP_R
HP-MT
R4051
MUTE
330
R4201
HP-IN
[SPR1W]
27K
HP-IN
CN413
05
L4050
10U
IC402
KIA7805API
IC401
KA78R12STU
OUT
GND
IN
CONT
GND
OUT
IN
1
2
3
4
3
2
1
CN401
GND
10
GND
V-CHK
V-CHK
MICON+5V
+5.6V
-12V
-12V
-12V
+12V
+12V
+12V
Q4001
-VL
Q4002
KTA1267
-VL
D4009
1SS133
KTA1267
+VL
+VL
+VL
R4004
P-RELAY
P-CON
P-CON
10K
P-RELAY
10
MTZJ3.9B
CN412
D4005
CN402
CN410
02
05
PR410
7A
PR411
7A
1AD0B10D1140C
R
ELECTRIC CAPACITOR
D4110 D4111
MPG06GMPG06G
[SPR2W]
R4115
6.8
04
CN411
PT401
- 47 -
CN470
L-CH
C4670
0.01
R-CH
L4750
0.7U
C4671
R4758
0.01
SL-CH
10
[SPR1W]
C4770
R4759
SH_GND
10
[SPR1W]
0.01
SR-CH
L4751
C4771
0.7U
0.01
C-CH
C4870
0.01
SW-CH
SPEAKER
OUTPUT
SH_GND
NO MOUNT
FAN
02
Q4209
KTC3199
CN420
PRODUCT SAFETY
NOTICE
Each precaution in this
CN407
Y
m a n u a l s h o u l d b e
f o l l o w e d
d u r i n g
Y
servicing. Components
HEAD
Y
PHONE
identified with the IEC
C4053
symbol
in the parts
! ! !
1AD4B10D1140D
100P
list and the schematic
diagram designated
components in which
PR400
safety can be of special
200
s i g n i f i c a n c e . W h e n
replacing a component
R4015
identified by
! ! !
, use
3.3K
only the replacement
[1/4W
CARBON]
parts designated, or
Q4007
KTA1267
parts with the same
ratings of resistance,
wattage or voltage that
WR402
are designated in the
parts list in this manual.
WR401
L e a k a g e - c u r r e n t o r
r e s i s t a n c e
measurements must be
made to determine that
250V 4A
e x p o s e d p a r t s a r e
FU401
acceptably insulated
;1/4J
from the supply circuit
;E
before returning the
product to the customer.
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