Elenberg LTV - 4231, Service Manual

Page: 2 / 52

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
OP_VCC1
HP-Lin
HP-Rin
OP_VCC1
LEFT
RIGHT
MUTE_PA
HP-Lin
HP-Rin
AMP-MUTE
MUTE_SPK
HP-Lin#
HP-Rin#
LEFT
RIGHT
AMP-L
MUTE_SPK#
HP-Lin#
HP-Rin#
AMP-R
5VA
3VBuf1
5VA_MUTE
VCC_12V
5Vstb
5VA_MUTE
5Vstb
AMP-L 2
AMP-R 2
AMP-MUTE 2
MUTE_L
MUTE_H
1,
只有主板耳机时候，
R252
贴
0
欧姆
2,
有
2
个耳机时候，
R252
不贴
两个耳机都有的 时候，插入任何一个耳机都可以静音掉电视，当没有侧端耳机时候不会没有声音
BT
系列没有
R252
所以 不接侧端耳机时候会静音掉电视
3
2
1
8
4
-
+
N201A
TDA1308
-
+
N201A
TDA1308
5
6
7
8
4
-
+
N201B
TDA1308
-
+
N201B
TDA1308
C204
47uF/16V
C204
47uF/16V
5
4
2
3
7
8
1
XS202
HP_AUDIO_OUT
XS202
HP_AUDIO_OUT
1
2
L203
330_Ohm_200mA
L203
330_Ohm_200mA
L202
FB_1K Ω _100mA
L202
FB_1K Ω _100mA
R211 47 R211 47
R216 10K R216 10K
R215
10K R215
10K
R207 47 R207 47
R206 10K R206 10K
C216 1uF C216 1uF
C215
470pF
C215
470pF
C205
100pF C205
100pF
C211
10uF
C211
10uF
C214 100pF C214 100pF
R209 47 R209 47
R240
470K R240
470K
D206
1N4148
D206 1N4148
C210 1uF C210 1uF
R226
10K
R226
10K
R214 33K R214 33K
R210
10K R210
10K
1
2
3
Q202
3904
Q202
3904
R270
NC/0 R270
NC/0
R219
10K
R219
10K
C218 1uF C218 1uF
R217 33K R217 33K
C206
47uF/16V C206
47uF/16V
R205
33K
R205
33K
R218
10K R218
10K
C201
100pF
C201
100pF
R220
1K
R220
1K
R254
NC/0
R254
NC/0
D203
1N4148
D203
1N4148
R202 10K R202 10K
1
3
2
Q204
3906 Q204
3906
1
1
2
2
3
3
4
4
XS203
CN4
XS203
CN4
R225
1K
R225
1K
C219 1uF C219 1uF
1
2
3
Q201
3904
Q201
3904
1
1
2
2
3
3
4
4
5
5
6
6
XS201
CN6
XS201
CN6
R252
0/NC
R252
0/NC
R253
0
R253
0
1 2
L204
330_Ohm_200mA
L204
330_Ohm_200mA
C213
470pF
C213
470pF
C208 100pF C208 100pF
C203
0.1uF
C203
0.1uF
C212
10uF
C212
10uF
L201
FB_1K Ω _100mA
L201
FB_1K Ω _100mA
D204
1N4148
D204
1N4148
R227
10K R227
10K
R212 10K R212 10K C207 1uF C207 1uF
R224 NC/10K R224 NC/10K
1
2
3
Q203
3904
Q203
3904
D205
NC/1N4148
D205
NC/1N4148
R271
NC/0
R271
NC/0
C202
47uF/16V
C202
47uF/16V
R203
33K
R203
33K
R221
100
R221
100
C217 1uF C217 1uF
R208 47 R208 47