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SCH22_AMP1
COMPONENT (Y)
GND LINE
POWER- LINE
POWER+ LINE
ANALOG AUDIO DIGITAL AUDIO
TMDS SIGNAL
VIDEO SIGNAL
SR
SL
AGN
D
AGN
D
AGN
D
AGN
D
D
480
3
O
PE
N
+H
IG
H
B
-H
IG
H
B
SR
TR_THERMA
L
DC_DE
T4
AS
O
FL
C
FR
AGN
D
AGN
D
AGN
D
AGN
D
AGN
D
AGN
D
D
481
5
O
PE
N
D
481
0
O
PE
N
+H
IG
H
B
H
IGHGN
D
-H
IG
H
B
C
483
1
330
/6
.3
(6
.3
*11
)
C
483
2
22/1
6
C
483
4
O
PE
N
R
489
1
10
K
SPK
_SMPS
1/
2 O
5
HD
M
I B
'D
18
/21_
K
9
C4843
OPEN
5K6(1)
R4846
OPEN
C4817
100N-K
C4800
C4801
10N-K
ASO_DET
DC_DET3
DC_DET4
SBR_
IN
SB
L_
IN
SL_
IN
SR_
IN
FL_
IN
470P-500V
C4844
22/50(ELNA)
C4841
470P-500V
C4825
C4822
22/50(ELNA)
R4917
1K
ZJ5.1A
ZD4806
R4871
1K
R4850
100K
100K
R4807
ZJ5.1A
ZD4800
150
R4930
2N2-K
C4845
270
R4931
100P-J
C4838
R4895
1K2
KTA1024Y
Q4820
2N2-K
C4826
R4887
270
150
R4886
Q4810
KTA1024Y
R4851
JUMPER
R4839
150
JUMPER
R4808
100P-J
C4804
1K2
R4802
R4927
220
R4883
220
C
482
3
100/50_
KO
SH
IN
D
480
2
O
PE
N
C
480
8
100/50_
KO
SH
IN
R4933
47(1)
Q4828
KTC3206Y
KTC3206Y
Q4819
47(1)
R4842
560
R4924
220K
R4923
2K7
R4910
220K
R4909
R4833
560
R4832
220K
R4818
220K
R4819
2K7
O
PE
N
R
491
9
R4896
5K6(1)
R4898
5K6(1)
47
/25_
KO
SH
IN
C
482
1
R4875
OPEN
22(1)
R4929
C4837
OPEN
22(1)
R4885
C4827
OPEN
22(1)
R4857
C4812
OPEN
R4813
22(1)
C4803
OPEN
C4848
OPEN
R4913
OPEN
R4912
0R22(2)
O
PE
N
C
482
9
OPEN
R4877
OPEN
R4865
0R22(2)
R4864
0R22(2)
R4876
O
PE
N
C
481
4
R4830
OPEN
0R22(2)
R4829
10
K
R
490
4
R
490
3
10
K
2
1
TP4804
2
1
TP4802
R
481
2
10
K
10
K
R
481
1
R4911
10K
R4914
5K6
C4835
100N-K
R4866
5K6
270K
R4859
100N-K
C4815
R4815
270K
R4820
10K
C
FR
Q4803
KSA992F
R4817
22K
SL
H
IGHGN
D
-H
IG
H
R
RAD
I_THERMA
L
BKT4800
R5098
0
R4868
OPEN
NR1607
6P WIRE
SB
R_
IN
SB
L_
IN
C_
IN
SR_
IN
SL_
IN
FR_
IN
22/50(ELNA)
C4807
470P-500V
C4810
R4899
100K
ZJ5.1A
ZD4803
R4826
1K
R4900
JUMPER
1K2
R4845
100P-J
C4819
2N2-K
C4811
R4840
270
KTA1024Y
Q4800
D
481
4
O
PE
N
C
484
2
100/50_
KO
SH
IN
D
480
9
O
PE
N
R4836
220
R4889
47(1)
Q4809
KTC3206Y
220K
R4861
2K7
R4862
R4880
560
220K
R4879
47/25_
KO
SH
IN
C
484
0
47/25_
KO
SH
IN
C
480
6
R
482
8
O
PE
N
C4846
OPEN
22(1)
R4905
R4838
22(1)
R4921
OPEN
R4920
0R22(2)
OPEN
R4822
0R22(2)
R4821
R
485
6
10
K
10
K
R
485
5
2
1
TP4800
270K
R4907
R4863
10K
R4823
5K6
FL
Q4811
KSA992F
R4847
33(1)
R
489
0
1K
5
C
483
3
O
PE
N
C
483
0
330
/6
.3
(6
.3
*11
)
R
489
2
10
K
7
4
5
6
2
3
1
8
CP4802
YMW025-08R
1
2
3
5
4
YMW025-05R
CP4800
SPK
_SMPS
1
/2
A
3
4
3
2
1
6
7
5
CN4800
1K2(1)
R4932
470K
R4925
R4926
33K
C_IN
C4824
OPEN
47/50_KOSHIN
C4816
R4908
22K
R4902
47K
TR_THERMAL
22K
R4858
R4814
22K
R4805
56K
R4874
PRF18BF471QB5RB-75T
AV 1/3 O3
Q4825
KSA992F
1K2
R4916
R4894
100K
R4881
470K
R4882
33K
Q4816
KSA992F
1K2
R4870
AGND
1K2(1)
R4841
R4834
470K
R4835
33K
100K
R4801
R4928
220
3K3(1)
R4922
220P-100V
C4839
R4918
33K
Q4824
KTC3964
R4893
1K8
47/50_KOSHIN
C4836
R4884
220
R4872
33K
1
2
3
C
. W.
VR4801
1K(B)-V
5K6(1)
R4849
C4809
OPEN
3K3(1)
R4831
R4806
5K6(1)
220P-100V
C4805
5K6(1)
R4803
1K8
R4800
C4847
OPEN
Q4827
2SB1560
OPEN
D4816
ZD4807
OPEN
D4813
OPEN
680K
R4901
C
482
8
O
PE
N
OPEN
D4806
OPEN
ZD4805
680K
R4852
KDS160
D4805
C
481
3
O
PE
N
OPEN
ZD4802
OPEN
D4804
2SD2390
Q4802
KDS160
D4800
OPEN
ZD4801
OPEN
R4915
Q4823
2N5551S
R4906
22K
Q4821
2N5401S
R4867
OPEN
Q4812
2N5401S
47K
R4854
22K
R4860
C4818
100/100(10*16)
100(1)
R4853
Q4804
2N5551S
R4810
47K
R4816
22K
PAGE 2
AMP B'D 2/2_M1
R4873
OPEN
MP
R4869
OPEN
PAGE 2
AMP B'D 2/2_A1
4
3
1
2
6
5
7
8
9
10
11
12
13
CP4801
R4888
1K2(1)
R4844
100K
Q4806
KSA992F
1K2
R4825
1
2
3
C
. W.
VR4802
1K(B)-V
R4878
3K3(1)
R4843
1K8
220P-100V
C4820
Q4815
KTC3964
R4827
33K
R4837
220
Q4805
KTC3964
47/50_KOSHIN
C4802
1
2
3
C
. W.
VR4800
1K(B)-V
Q4822
2SD2390
KDS160
D4812
OPEN
ZD4808
Q4813
2SD2390
Q4818
2SB1560
OPEN
ZD4804
OPEN
D4811
Q4808
2SB1560
680K
R4809
OPEN
D4801
Q4814
2N5551S
OPEN
R4824
Q4801
2N5401S
KSA992F
Q4826
DHPTF1608-105T
R4897
KSA992F
Q4817
DHPTF1608-105T
R4848
DHPTF1608-105T
R4804
NR1607 AMP B'D 1/2
KSA992F
Q4807
7CH_AMP 1/2
REF : 4800-5199
1.1V
44V
0V
0V
-41.5V
-1.1V
-42V
0.6V
39.6V
39.1V
-41V
Point A
Point B
Point C
Point A
Point B
Point C1
Point C2
Voltage A
Measurement condition
・
Voltage measurement
No signal
・
Waveform measurement
INPUT: 200mVrms / 1KHz (ANALOG)
Surround mode: MCh Stereo
VOL: 70
Speaker load: 8ohms
DC mode
AC mode
Point C1
Point C2
Voltage A
E6
E7
CP4800
CP4802
CP4801
31
Caution in
servicing
Electrical
Mechanical
Repair Information
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