Sony STR-DB795 Service Manual ▷ View online
58
STR-DB795
– VIDEO-AU Board –
IC201
TC9273N-014
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
GND
CK
VDD
STB
DATA
10BIT
LATCH
CIRCUIT
(R-CH)
10BIT
LATCH
CIRCUIT
(L-CH)
LEVEL SHIFT & SHIFT REGISTER
15 VOUT2
16 V+
14 SW1
75
Ω
DRIVER
6dB
AMP
75
Ω
DRIVER
6dB
AMP
11 VOUT3
75
Ω
DRIVER
6dB
AMP
13 VIN1
12 GND
10 SW2
9 VIN2
3
VIN5
4
SW3
5
VIN4
6
SW4
7
VIN3
2
SW5
1
VOUT1
8
V–
– S-VIDEO Board –
IC850, 851
TC9273N-014
IC852
LA7213
1
SYNC
SEP
V-SYNC
SEP
2
3
4
5
V IN
HD
VSS
VD
VDD
59
STR-DB795
– COMP-V Board –
IC370
TC90A69N
7
YCIN
2
VRT
6
VRB
4
TESTI1
8
TEST
1
BIAS
5
VSS2
9
KILLER
3
VDD1
11
VDD3
12
VSS3
13
VDD2
14
TESTI3
10
TESTI2
A/D
CONVERTER
D/A
CONVERTER
CORING
PEAKING
SYNC CLAMP
DELAY
LINE
MEMORY
DELAY
IIC BUS
VCO
1/2
1/8
8fsc
4fsc
LINE
MEMORY
DINAMIC COMB FILTER
V-ENHANCER
CORING
COLOR
KILLER
KILLER
+
27 COUT
25 YOUT
28 VB1
24 VB2
26 VSS1
D/A
CONVERTER
23 PD
22 FIL
19 FSC
21 VSS4
20 VDD4
18 TESTOUT
17 MODE1
16 SDA
15 SCL
CNR
C-NLC
PLL
DET
DET
Ped.
CLIP
INTERPOLATION
IC371
MM1093NF (TW, KR)
MM1093PFB (EXCEPT TW, KR)
MM1093PFB (EXCEPT TW, KR)
APC1
4FSC
VCO
FSC
VCXO
ACC
DET
DET
DIVIDER
(1/4)
BGP
GEN
GEN
2ND
BPA
BPA
SYNV
SEP
9
8
7
APC2
11
5
1ST
BPA
13
3
10
6
12
4
14
2
15
OSC R
NC
VCC1
FSC
OUTPUT
VCC2
GND2
OSC C
GND1
APC2
FILTER
X
, TAL
4FSC
OUTPUT
APC1
FILTER
BURST GATE
FILTER
ACC
FILTER
1
16
COMPOSITE
INPUT
CHROMA
INPUT
IC372
NJM2268D
1
2
4
VIN1
GND
3
VSAG1
VOUT1
75
Ω
DRIVER
6dB
AMP
CLAMP
8
7
5
VIN2
V+
6
NC
VOUT2
75
Ω
DRIVER
6dB
AMP
BIAS
60
STR-DB795
– AU-IN Board –
IC101
TC9274N-017
1
2
3
4
5
6
7
8
9
10
11
12
20
21
42
40
40
39
38
37
36
35
34
33
32
31
23
22
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
GND
CK
VDD
STB
DATA
18BIT
LATCH
CIRCUIT
(R-CH)
18BIT
LATCH
CIRCUIT
(L-CH)
LEVEL SHIFT & SHIFT REGISTER
13
S12
30 S12
14
S13
29 S13
15
S14
28 S14
16
S15
27 S15
17
S16
26 S16
19
S18
24 S18
18
S17
25 S17
IC173
TC9273F-012 (EL)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
GND
CK
VDD
STB
DATA
10BIT
LATCH
CIRCUIT
(R-CH)
10BIT
LATCH
CIRCUIT
(L-CH)
LEVEL SHIFT & SHIFT REGISTER
61
STR-DB795
– MAIN Board –
IC401, 501, 601, 651
CXD9725M
TRIM VOLUME
0-+24dB/
1dB STEP
TRIM VOLUME
0-+24dB/
1dB STEP
5 to 25 DECODER
&
LATCH CIRCUIT
4 to 13 DECODER
&
LATCH CIRCUIT
4 to 16 DECODER
&
LATCH CIRCUIT
24 BIT
SHIFT REGISTER
CIRCUIT
LEVEL SHIFT
CIRCUIT
5 to 25 DECODER
&
LATCH CIRCUIT
4 to 13 DECODER
&
LATCH CIRCUIT
4 to 16 DECODER
&
LATCH CIRCUIT
2
VSS
3
TRIM
4
TRIM
5
TRIM
6
OUT
7
VRGND
9
VRIN
8
NC
11
CS1
10
NC
14
NC
1
NC
12
GND
13
CLK
26 TRIM
25 TRIM
24 TRIM
23 OUT
22 VRGND
20 VRIN
21 NC
28 NC
18 CS2
19 NC
15 NC
17 LAT
16 DATA
26 VDD
MAIN
VOLUME
0- –95dB/
0.5dB STEP
MAIN
VOLUME
0- –95dB/
0.5dB STEP
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