Skyworth 8M39A/E, Service Manual

Page: 34 / 39

5 5
4 4
3 3
2 2
1 1
D
D
C
C
B
B
A
A
VCC-OP2
SP_L SP_R
VCC-OP2
VCC-OP2
SP_R
VCC-OP2
AP_MUTE#
SP_L
PWD_MT
AMP_RIN
AMP_RIN AMP_LIN
AMP_LIN AP_MUTE#
12VA
12VA
5VU
12VA
12VA
3.3VA
LINEOUTL
7
LINEOUTR
7
AUOUTR1
2
AUOUTL1
2
MUTE_AMP
2
AUOUTR0
2
AUOUTL0
2
Title Size
Document Number
Rev
Date:
Sheet
1.0
AUDIO
91
0
Tuesday, February 09, 2010
Title Size
Document Number
Rev
Date:
Sheet
1.0
AUDIO
91
0
Tuesday, February 09, 2010
Title Size
Document Number
Rev
Date:
Sheet
1.0
AUDIO
91
0
Tuesday, February 09, 2010
HOLE
AUDIO pre-ap
Near MST.IC Ground in the middle of the L/R
ᬒ໻ס᭄
=R308/R313
ᬒ໻ס᭄
=R315/R314
TDA1517P
ᬒ໻ס᭄
=R312/R317
Near MST.IC Ground in the middle of the L/R
ᬒ໻ס᭄
=R310/R316
H1
PAD
H1
PAD
1 2 3
4
5
6 7
8
9
R325 330R R325 330R
Q24 3904 Q24 3904
1
2 3
R273
330R
R273
330R
1
2
Q44 MMBT3904 Q44 MMBT3904
1
2 3
+
CA68 100uF/16V
+
CA68 100uF/16V
DD32 BAV99 DD32 BAV99
3
1
2
Q37 MMBT3904 Q37 MMBT3904
1
2 3
R281
10k
R281
10k
R284 0R R284 0R
H8
TPAD
H8
TPAD
1
R322 330R R322 330R
C256
0.1u
C256
0.1u
R271
330R
R271
330R
1
2
H2
PAD
H2
PAD
1 2 3
4
5
6 7
8
9
C260 200p C260 200p
+
CA50 470uF/16V
+
CA50 470uF/16V
H3
PAD
H3
PAD
1 2 3
4
5
6 7
8
9
Q42 MMBT3904 Q42 MMBT3904
1
2 3
R286
10k
R286
10k
R304 200K R304 200K
C240 NC /0. 1u C240 NC /0. 1u
C259 200p C259 200p
Q22 MMBT3906 Q22 MMBT3906
+
CA61
470uF/16V
+
CA61
470uF/16V
R58
100R
R58
100R
R302 200K R302 200K
C237 200p C237 200p
C231 1u C231 1u
R316 330R R316 330R
C257
0.1u
C257
0.1u
CON4
SIP5_2.0mm
CON4
SIP5_2.0mm
1 2 3 4 5
+
CA71 100uF/16V
+
CA71 100uF/16V
R283 100K R283 100K
C232 1u C232 1u
R294
0R
R294
0R
R311
0R
R311
0R
R374
2.2K
R374
2.2K
R279
10k
R279
10k
R285 NC/0R R285 NC/0R
R310 1k R310 1k
H6
PAD
H6
PAD
1 2 3
4
5
6 7
8
9
+
CA55
100uF/16V
+
CA55
100uF/16V
R288 100K R288 100K
Q36 MMBT3904 Q36 MMBT3904
1
2 3
H7
TPAD
H7
TPAD
1
R309 4.7K R309 4.7K
C233 1n C233 1n
R305
0R
R305
0R
Q39 MMBT3904 Q39 MMBT3904
1
2 3
R278
0R
R278
0R
H9
TPAD
H9
TPAD
1
CON22
SIP4_2.5mm
CON22
SIP4_2.5mm
1 2 3 4
R317 330R R317 330R
R280 10K R280 10K
R308 1k R308 1k
H5
TPAD
H5
TPAD
1
R299 100K R299 100K
H10
TPAD
H10
TPAD
1
C245
0.1u
C245
0.1u
R314 330R R314 330R
C239 1n C239 1n
R312 1k R312 1k
R172
NC/0R
R172
NC/0R
1
2
C236 200p C236 200p
H4
PAD
H4
PAD
1 2 3
4
5
6 7
8
9
+
CA62
470uF/16V
+
CA62
470uF/16V
U31 SA7454 U31 SA7454
INV1
1
GND
2
SVRR
3
OUT1
4
GND
5
OUT2
6
VP
7
M/SS
8
INV2
9
GND
10
GND
11
GND
12
GND
13
GND
14
GND
15
GND
16
GND
17
GND
18
GND
19
GND
20
GND
R L
CON29 PHONOJACK
GND
R L
CON29 PHONOJACK
7 4 5 1 6 3 2
Q40 MMBT3904 Q40 MMBT3904
1
2 3
R313 330R R313 330R
C235 1u C235 1u
R315 1k R315 1k
R173
NC/0R
R173
NC/0R
1
2
C234 1u C234 1u
R292 10K R292 10K
R293
10K
R293
10K