Skyworth 8M29B, Руководство по обслуживанию

Страница: 41 / 45

5 5
4 4
3 3
2 2
1 1
D
D
C
C
B
B
A
A
mute
mute
AMP
_
LIN
GAIN
0
GAIN1
SHUTDOWN
MUTE
_
TDA3121
GAIN
0
GAIN1
AMP
_
RIN
SHUTDOWN
MUTE
_
TDA3121
mute
AMP-PLout AMP-PRout
AMP
_
LIN
AMP
_
RIN
OP
_
VCC1
OP
_
VCC1
AMP-PRout AMP-PLout
PWD
_
MT
mute
AMP-PLout
AMP-PRout
mute
AUOUTL2 AUOUTR2
mute
12-24
12-24
12-24
12-24
12-24
12-24
12-24
6VBuf1
5VA
3
.
3VA
12VA
MUTE
_
AMP
2
AUOUTR
0
2
AUOUTL
0
2
AUOUTL2
2
AUOUTR2
2
HEADPHONE
_
DET
2
Title Size
Document Number
Rev
Date:
Sheet
of
9/1
00
.
1
AUDIO
A2
91
0
Tuesday, May 1
0
, 2
0
11
Title Size
Document Number
Rev
Date:
Sheet
of
9/1
00
.
1
AUDIO
A2
91
0
Tuesday, May 1
0
, 2
0
11
Title Size
Document Number
Rev
Date:
Sheet
of
9/1
00
.
1
AUDIO
A2
91
0
Tuesday, May 1
0
, 2
0
11
HOLE
Power Down MUTE
Place close to OP
TDA3121
HeadPhone Out
EMI Cover
AMPLIFIER AUDIO pre-ap
Near MST.IC Ground in the middle of the L/R
MUTE_AMP : LOW = MUTE
MUTE_TDA3121 : HIGH = MUTE
TPA3121 MUTE PIN LOW:OPERATING HIGH:MUTE
2010-5-8 Close to MSD309PX
20110510 For Earphone Mute 20110510 For Earphone Mute
20110510 For Earphone "POP"
20110510 100uF to 470uF For Earphone "POP"
+ CA84
1
00
uF/16V
+ CA84
1
00
uF/16V
R334
2
.
2K
R334
2
.
2K
C179 1nF C179 1nF
R442
1K
R442
1K
+
CA82
22
0
uF/35V
+
CA82
22
0
uF/35V
D127 ESD D127 ESD
1 2
C253 1uF C253 1uF
H4
NC
H4
NC
1
2 3 4 5
6 7 8 9
+
CA8
0
22
0
uF/35V
+
CA8
0
22
0
uF/35V
R461
33K
R461
33K
R3
0
6
1
0
k/NC R3
0
6
1
0
k/NC
C262
0.
22uF
C262
0.
22uF
- +
U45B
TL
0
62
- +
U45B
TL
0
62
5 6
7
8 4
R316
1
00
R
R316
1
00
R
Q433 39
0
4
Q433 39
0
4
1
2 3
R36
0
1
0
K
R36
0
1
0
K
CA464
1
00
uF/16V
CA464
1
00
uF/16V
R288
4
.
7K
R288
4
.
7K
Q446 NC/39
0
4
Q446 NC/39
0
4
1
2 3
R4
0
7
47K R4
0
7
47K
H11
TPAD
H11
TPAD
1
U54
TPA312X
U54
TPA312X
PVCCL
1
SD
2
PVCCL
3
MUTE
4
LIN
5
RIN
6
BYPASS
7
AGND
8
AGND
9
PVCCR
1
0
VCLAMP
11
PVCCR
12
PGNDR
13
PGNDR
14
ROUT
15
BSR
16
GAIN1
17
GAIN
0
18
AVCC
19
AVCC
2
0
BSL
21
LOUT
22
PGNDL
23
PGNDL
24
THERMAL
25
Q16
NPN
_
39
0
4
Q16
NPN
_
39
0
4
1
2 3
C497
1
00
pF
C497
1
00
pF
C244 1nF C244 1nF
C344 NC/2
00
P
C344 NC/2
00
P
L6
1
0
uH/Inductor
L6
1
0
uH/Inductor
1
2
3
4
5
R441
1
0
K
R441
1
0
K
R283 1
0
K
R283 1
0
K
H1
NC
H1
NC
1
2 3 4 5
6 7 8 9
Q622 39
0
6
Q622 39
0
6
1
3
2
R317 12K R317 12K
C254 4
.
7u
C254 4
.
7u
R438 47
0
R438 47
0
- +
U45A
TL
0
62
- +
U45A
TL
0
62
3 2
1
8 4
R294 24K R294 24K
L1 CON2
_
1
L1 CON2
_
1
2 1 3 4
5 6
R369 1
0
K
R369 1
0
K
C267
1uF
C267
1uF
R365 1
.
5K
R365 1
.
5K
R28
0
1
0
K
R28
0
1
0
K
R335 1
0
K
R335 1
0
K
C264 1uF C264 1uF
Q35 A
0
34
0
1
Q35 A
0
34
0
1
1
3 2
R278
1
00
R
R278
1
00
R
R361 1
0
K
R361 1
0
K
R398
33
0
R
R398
33
0
R
H15
TPAD
H15
TPAD
1
R367 1
0
K
R367 1
0
K
+
CA83 47
0
uF/16V
+
CA83 47
0
uF/16V
+
CA55
22
0
uF/35V
+
CA55
22
0
uF/35V
+
CA99 22
0
uF
+
CA99 22
0
uF
CON4
CON2
CON4
CON2
2 1
R37
0
1
.
5K
R37
0
1
.
5K
D4
0
NC/1N4148
D4
0
NC/1N4148
R4
0
13
3
0
R
R4
0
13
3
0
R
+
CA98 22
0
uF
+
CA98 22
0
uF
+
CA86
22
0
uF/35V
+
CA86
22
0
uF/35V
R32 0 12K R32 0 12K
R443
1K
R443
1K
+
CA81
47uF/16V
+
CA81
47uF/16V
+
CA96 22
0
uF
+
CA96 22
0
uF
R4
0
4
47K R4
0
4
47K
CA465
1
00
uF/16V
CA465
1
00
uF/16V
H3
NC
H3
NC
1
2 3 4 5
6 7 8 9
Q424 39
0
4
Q424 39
0
4
1
2 3
R299
1
00
K
R299
1
00
K
R366
NC/1
0
K
R366
NC/1
0
K
D37 1N4148 D37 1N4148
+
CA85
22
0
uF/35V
+
CA85
22
0
uF/35V
C236 1 0 n C236 1 0 n
C345 NC/2
00
P
C345 NC/2
00
P
C341 0.
1uF
C341 0.
1uF
R368
NC/1
0
K
R368
NC/1
0
K
L5
1
0
uH/Inductor
L5
1
0
uH/Inductor
1
2
3
4
5
C251 1u C251 1u
C248 1uF C248 1uF
C392 2N2 C392 2N2
+
CA97 22
0
uF
+
CA97 22
0
uF
R46
0
33K
R46
0
33K
H6
NC
H6
NC
1
2 3 4 5
6 7 8 9
C257
1uF
C257
1uF
C268
0.
68uF
C268
0.
68uF
H12
TPAD
H12
TPAD
1
H16
TPAD
H16
TPAD
1
R3
0
31
00
K
R3
0
31
00
K
Q445 39
0
4
Q445 39
0
4
1
2 3
D126 ESD D126 ESD
1 2
C258
0.
22uF
C258
0.
22uF
C34
0
2
.
2uF
C34
0
2
.
2uF
R374 47K R374 47K
Q447 39
0
4/NC
Q447 39
0
4/NC
1
2 3
H14
TPAD
H14
TPAD
1
R439
1
0
K
R439
1
0
K
D39 1N4148 D39 1N4148
Q435 NC/ 39
0
4
Q435 NC/ 39
0
4
1
2 3
C266 0.
1uF
C266 0.
1uF
R293
1
0
K
R293
1
0
K
H13
TPAD
H13
TPAD
1
R3
0
81
00
K
R3
0
81
00
K
C342 1nF C342 1nF
H7
NC
H7
NC
1
2 3 4 5
6 7 8 9
H8
NC
H8
NC
1
2 3 4 5
6 7 8 9
H1
0
TPAD
H1
0
TPAD
1
R418
33K
R418
33K
C237 1 0 n C237 1 0 n
R286 NC/1
0
K
R286 NC/1
0
K
C269 0.
68uF
C269 0.
68uF
R3
00
NC/1
00
K
R3
00
NC/1
00
K
C27
0
1uF/35V
C27
0
1uF/35V
P1
0
PHONEJACK STEREO SW
_
3
P1
0
PHONEJACK STEREO SW
_
3
1 3 2 4
CON5
CON5
CON5
CON5
2 1
C496
1
00
pF
C496
1
00
pF
C25
0
1u C25
0
1u
R333 1
0
k
R333 1
0
k
C343
2
.
2uF
C343
2
.
2uF
C265
1
0
uF/35V
C265
1
0
uF/35V
R3
0
7
NC/1
00
K
R3
0
7
NC/1
00
K
R416
33K
R416
33K
R296 NC/24K R296 NC/24K
C252 4
.
7u
C252 4
.
7u
H5
NC
H5
NC
1
2 3 4 5
6 7 8 9
1 0
C243 1nF C243 1nF
C263
1uF
C263
1uF
R437 NC / 1
00
R437 NC / 1
00
R397
33
0
R
R397
33
0
R
R395
33
0
R
R395
33
0
R
R295
0
R295
0