SCH10_MAIN DAC
ANALOG AUDIO
DIGITAL AUDIO
TMDS SIGNAL
ANALOG VIDEO
GND LINE
POWER- LINE
POWER+ LINE
DIGITAL VIDEO
STBY POWER
HDMI
FR
FL
SW
SBR
SBL
C
(GRM21)
(GRM21)
(G
RM
21
)
(G
RM
21
)
(GRM21)
(GRM21)
(GRM21)
(GRM21)
(G
RM
21
)
(G
RM
21
)
(GRM21)
(GRM21)
(GRM21)
(GRM21)
(G
RM
21
)
(G
RM
21
)
(GRM21)
(GRM21)
PDN
VDD18
DVSS
TVDD
LDOE
AOUTR4P
AOUTR4N
VREFL4
VREFH4
AOUTL4N
AOUTL4P
AOUTR3P
AO
UT
R3
N
VR
EF
L3
VR
EF
H3
AO
UT
L3
N
AO
UT
L3
P
AV
D
D
AV
SS
AO
UT
R2
P
AO
UT
R2
N
VR
EF
H2
VR
EF
L2
AO
UT
L2
N
AOUTL2P
AOUTR1P
AOUTR1N
VREFH1
VREFL1
AOUTL1N
AOUTL1P
I2C
PS
CAD0_I2C
CL/CCLK/TDM1
SDA/CDTI/TDM0
CA
D
1
DZ
F/
SM
UT
E
DS
DR
4
DS
DL
4
DS
DR
3
SD
TI
4/
DS
DL
3/
TD
MO
2
SD
TI
3/
DS
DR
2/
TD
MO
1
SD
TI
2/
DS
DL
2
SD
TI
1/
DS
DR
1
LR
CK
/D
SD
L1
BI
CK
/D
CL
K
MC
LK
(GRM21)
(GRM21)
(G
RM
21
)
(G
RM
21
)
(GRM21)
(GRM21)
SR
SL
FR
OM
A
UD
IO
P
AR
T
MAIN DAC PART
FROM PLD PART
FR
OM
M
CU
P
AR
T
R7911
3k9/F-T
R7918
180
R7915
180
R
791
4
4
k7
/F
-T
R7917
4k7/F-T
C
791
2
680
p
F
R7919
100
R7929
100
C7911
3900pF
R
791
3
33
k
R7939
100
R7949
100
C7941
3900pF
R7979
100
R7989
100
C
792
4
O
P
E
N
C
798
4
O
P
E
N
C
791
4
O
P
E
N
C
797
4
O
P
E
N
C7985
0.1uF
C7986
0.1uF
C7987 1000pF
C7988 1000pF
C7989
OPEN
C7990
OPEN
C7991 1000pF
C7992 1000pF
C7993 1000pF
C7994
0.1uF
C7995
0.1uF
C7996
0.1uF
C7997 1000pF
C7998 1000pF
C7999 1000pF
R7935
180
R
793
4
4
k7
/F
-T
R
793
3
33
k
R7938
180
R7937
4k7/F-T
R7936
33k
R7912
3k9/F-T
R7921
3k9/F-T
R7922
3k9/F-T
R
792
3
33
k
R7916
33k
R7926
33k
R
792
4
4
k7
/F
-T
R7927
4k7/F-T
R7925
180
R7928
180
C7921
3900pF
C
792
2
680
p
F
C7913
680pF
C7923
680pF
R7931
3k9/F-T
R7932
3k9/F-T
R
794
3
47
k
R
794
4
10
k/
F-
T
R7945
150
R7948
150
R7947
10k/F-T
R7946
47k
R7941
3k9/F-T
R7942
3k9/F-T
R7971
3k9/F-T
R7972
3k9/F-T
R7981
3k9/F-T
R7982
3k9/F-T
C7931
3900pF
C
794
2
470
p
F
C
793
2
680
p
F
C7943
470pF
C7933
680pF
C7971
3900pF
C7981
3900pF
R7978
180
R7977
4k7/F-T
R7976
33k
R7986
33k
R7987
4k7/F-T
R7988
180
R
797
4
4
k7
/F
-T
C
797
2
680
p
F
R
797
3
33
k
R
798
4
4
k7
/F
-T
C
798
2
680
p
F
R
798
3
33
k
R7975
180
R7985
180
C7973
680pF
C7983
680pF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
IC791
AK4458VN
C7929
0.1uF
C7936 100V/1uF
C7927 0.1uF
C7925
0.1uF
C7919
0.1uF
C7917
0.1uF
C
791
5
0
.1
u
F
R
790
1
3
3
R7902
1k
C
793
5
0
.1
u
F
1
2
3
4
5
6
7
8
A
+
-
B
+
-
A
O
U
T
PU
T
A
-I
N
P
U
T
A+
IN
PU
T
V
-
B+
IN
PU
T
B
-I
N
P
U
T
B
O
U
T
PU
T
V+
IC
79
2
N
JM
8080
G
1
2
3
4
5
6
7
8
A
+
-
B
+
-
A
O
U
T
PU
T
A
-I
N
P
U
T
A+
IN
PU
T
V
-
B+
IN
PU
T
B
-I
N
P
U
T
B
O
U
T
PU
T
V+
IC
79
3
N
JM
8080
G
C
794
4
O
P
E
N
C
793
4
O
P
E
N
1
2
3
4
5
6
7
8
A
+
-
B
+
-
A
O
U
T
PU
T
A
-I
N
P
U
T
A+
IN
PU
T
V
-
B+
IN
PU
T
B
-I
N
P
U
T
B
O
U
T
PU
T
V+
IC
79
5
N
JM
8080
G
R7959
100
R7969
100
C
796
4
O
P
E
N
C
795
4
O
P
E
N
R7951
3k9/F-T
R7952
3k9/F-T
R7961
3k9/F-T
R7962
3k9/F-T
C7951
3900pF
C7961
3900pF
R7958
180
R7957
4k7/F-T
R7956
33k
R7966
33k
R7967
4k7/F-T
R7968
180
R
795
4
4
k7
/F
-T
C
795
2
680
p
F
R
795
3
33
k
R
796
4
4
k7
/F
-T
C
796
2
680
p
F
R
796
3
33
k
R7955
180
R7965
180
C7953
680pF
C7963
680pF
1
2
3
4
5
6
7
8
A
+
-
B
+
-
A
O
U
T
PU
T
A
-I
N
P
U
T
A+
IN
PU
T
V
-
B+
IN
PU
T
B
-I
N
P
U
T
B
O
U
T
PU
T
V+
IC
79
4
N
JM
8080
G
DADATAF1
DA256FS1
DAFS1
DA64FS1
DA_Z_MUTE1
DA_DA1
DA_CK1
DA_MS1
C7901
220/25V
C7902
220/25V
C7916
220/16V
C7930 470/16V
C
791
8
220
/16
V
C
792
0
220
/16
V
C
792
6
220
/16
V
C
792
8
220
/16
V
-12V
+ 12V
DA+ 5V
AGND
DACSR
DACSL
DACSW
DACC
DACFR
DACFL
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
DACSBL
DACSBR
D
GN
D
D
A
3
.3
V
D
A
C
M
C
K
D
A
C
P
C
M
S
B
D
A
C
P
C
M
S
D
A
C
P
C
M
C
S
W
1
D
A
C
P
C
M
F
D
A
C
B
C
K
D
A
C
LR
C
K
D
Z
F1
DAC_MS
DAC_DATA
DAC_CLK
DAC_RST
CH2:DACBCK
(DA64FS1)
CH4:DACMCK
(DA256FS1)
CH3:DACPCMF
(DADATAF1)
CH1:DACLRCK
(DAFS1)
(3) DAC input
5C
4D
D8
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
18