Hitachi UT42V702/D8MW, Руководство по обслуживанию

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D8MW
TABLE OF CONTENTS
Schematic Diagram page /28
76 • Since this is a basic circuit diagram, the value of the parts is subject to be altered for improvement.
3 4
5
6 7
A
B
C
D
E
F
23
TERMINAL BOARD SHEET: 004
Headphone output
4 5 6
3 2 1
8 9
10 11 12 13 14
7 6 5 4 3 2 1
8 9
10 11 12 13 14
7 6 5 4 3 2 1
C
40
8
10
05
0.
1/
16
1
2
C
41
0
10
05
0.
04
7/
25
1
2
C412
2.2/16
1 2
C
40
5
10
05
0.
1/
16
1
2
C411
2.2/16
1 2
C
42
2
21
25
4.
7/
16
1
2
C421
1005
0.1/16
1 2
C
42
0
10
05
0.
1/
16
1
2
C
41
9
1.
0/
16
1
2
C
40
2
21
25
4.
7/
16
1
2
C
40
7
10
05
0.
1/
16
1
2
C
41
6
21
25
4.
7/
16
1
2
C
40
6
10
05
0.
1/
16
1
2
C
40
1
10
05
0.
1/
16
1
2
C
40
9
10
05
0.
04
7/
25
1
2
C
41
4
1.
0/
16
1
2
C
41
3
21
25
10
/1
0
1
2
C
41
5
1.
0/
16
1
2
C404
2.2/16
1 2
C403
2.2/16
1 2
C418
100/16
MVK/SKV
1 2
C417
100/16
MVK/SKV
1 2
I4
03
TK
11
10
0C
S
V
ou
t
fb
V
in
C
on
tr
ol
G
N
D
N
p
I4
02
N
JW
11
09
V
V
+
O
U
Tb
N
C
-3
C
A
Pb
IN
b
A
D
R
SD
A
SC
L
V
re
f
IN
a
C
A
Pa
N
C
-1
2
O
U
Ta
G
N
D
I4
01
W
M
85
20
-S
P6
D
G
N
D
LR
C
LK
D
IN
BC
LK
M
U
TE
V
O
U
TR
A
G
N
D
C
A
P
A
V
D
D
V
O
U
TL
D
EE
M
PH
RE
SE
T
M
C
LK
D
V
D
D
GND1
GND1
GND1
GND1 GND1
GND1
HP_GND
GND1
GND1
GND1
HP_GND
GND1
GND1
1608
L402
BLM18BD471SN1D
1 2
1608
L403
120
1 2
1608
L401
BLM18BD471SN1D
1 2
Q403
2SA1989-T111-1
1
2
3
Q402
2SD2704K
1
2
3
Q401
2SD2704K
1
2
3
R409 1.0k
1 2
R4
26
1.
0k
1
2
R429
1.0k
1 2
R414 1.0k
1 2
R4
11
10
k
1
2 R430
1.0k
1 2
R420 100
1 2
R4
10
10
k
1
2
R413
0
1 2
R4
24
10
k
1
2
R4
25
1.
0k
1
2
R419 100
1 2
R422
100
1 2
R4
16
10
k
1
2
R4
15
10
k
1
2
R4
17
10
k
1
2
R407 0
1 2
R401
510k-1%
1 2
R402
82k-1%
1 2
R403
1.8k-1%
1 2
R4
18
10
k
1
2
R431 0
1 2
R4
23
10
k
1
2
R421
100
1 2
R4
32
10
k
1
2
R4
08
10
k
1
2
R436
2010
120
1 2
3 4
5 6
7
8
R428
2010
120
1 2
3 4
5 6
7
8
R437
2010
0
1 2
3 4
5 6
7 8
R427
2010
120
1 2
3 4
5 6
7
8
R438
2010
0
1 2
3 4
5 6
7 8
R435
2010
120
1 2
3 4
5 6
7
8
AUD_SDA
001:D4
002:2D
003:2C
HP_L
001:H6
AUD_SCL
001:D4
002:2D
003:2C
HP_MUTN
001:D5
6C
AUD+9V
3D
AudioRSTn
001:D4
002:2D
003:2B
AUD+11V
001:D7
003:5B
003:5D
003:6B
DLY_WS_H 001:F4
AUD+9V
2B
HP_MUTN
001:D5
2C
DLY_SCLK_H 001:F5
DLY_SD_H 001:F4 HP_R
001:H6
STB+5V
001:D6
AUD+3.3V
002:2D
002:3B
002:7E
003:2B
003:2D
003:5B
DAC_MCLK 003:3D
R4
39
0
1
2
R433 10k
1 2
AUDIO DAC HP AMP
AUD+9V
---
AUD+11V
---
Slave Address:80h
ADR Slave Address
High 84h
Low 80h
200mA(Max)
200mA(Max)
J101
11/5 Not Mount R409
11/5 AUD+3.3V -> STB+5V
20mA
11/6 C403, C404
1u -> 2.2u
1