Samsung LW32A23W Service Manual page 28

Schematic Diagrams
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Input Board Schematic Diagram
Component1 Input
SK3
(480i/480P/720P/1080i)
jack9p_b
GND_1
1
FT921
SIG_2
3
SIG_1 2
GND_2 FT106
4
SIG_4
6
FT107
SIG_3 5
GND_3
7
SIG_6
9
SIG_5 8
R104 R105
AGND 75 C102 75 C103
100pF 100pF
AGND AGND AGND AGND AGND
D4_1 INPUT
VCC5B
R109
1K
1
CN140
8
d_sub14p
2
9
3
10
4
11
5
12
6
13 R113 R114
7 75 75
14
AGND
AGND AGND AGND AGND AGND
Component2 Input
SK4
jack9p_b
GND_1
1
FT108
SIG_2
3
SIG_1 2
GND_2 FT109
4
SIG_4
6
FT110
SIG_3 5
GND_3 7
SIG_6
9
SIG_5
8
R121 R122
AGND 75 C118 75 C119
100pF 100pF
AGND AGND AGND AGND AGND
D4_2 INPUT
VCC5B
R128
1K
1
CN141 8
d_sub14p
2
9
3
10
4
11
5
12
6
13 R130 R131
75
7
14
AGND
AGND AGND AGND AGND
STD_VCC6A STD_VCC5B STD_VCC3B
FT114 FT115 FT116
AGND
CN144 1
slcon22p_1
1 TP307 SW_SMPS
2
TP410
3 TP411
4 TP412
FT117
5 TP413
CH+_OUT
FT118
6 TP414
FT119 VOL+_OUT
7 TP415
FT120 BUZER_IN
8 TP416
CH-_OUT
FT121
9 TP417
FT122 VOL-_OUT
10 TP418
FT123 SOURCE_OUT
11 TP419
MENU_OUT
12
13 TP420
TP421
14
15
16 TP422 IR
17
LED_GRN
18 TP423
19 LED_RED
TP424
20
21
22
C131
C138
22uF 22uF
C137 16V
16V
22uF
16V
AGND
Component1 Audio Input
5 L101 N
SIG_3
6
SIG_4
4
PR_COMP1 GND_2
2 L102 N
SIG_1
3
PB_COMP1 SIG_2
1
GND_1
Y_COMP1 jack6p_b
SK10
AGND D100 C100
RLZ8.2
R106
D101 1 1 RLZ8.2 100pF
C101
75 2
2
100pF
RLZ8.2 D106
D107 3 RLZ8.2
C104
100pF
AGND AGND AGND AGND
AGND Component2 Audio Input
5 L104 N
SIG_3
6
SIG_4
4
GND_2
2 L105 N
SIG_1
3
SIG_2
1
GND_1
jack6p_b
SK11
AGND RLZ8.2 D116
1 1 RLZ8.2 C112
D117
2
2 100pF
Y_D1 C113
RLZ8.2 D118 100pF
D4_1_CONT1
D119 3 RLZ8.2
D4_1_CONT2(SC1_SW)
PB_D1
AGND AGND AGND AGND
D4_1_CONT3
PR_D1
CN112
PC Audio Input
R115 dcjhp_10p
75
4
9 10
L108 N R117
5
L109 N R118
6
8
AGND
7
AGND C116
100pF
C117
100pF
AGND AGND AGND AGND
CN116
PR_COMP2
dcjhp_10p
HP OUTPUT
PB_COMP2
4
9
Y_COMP2
L112 N R124
10
5
L113 N R125
6
L114 N R126
8
R123
7
75 C120
100pF
D148
RLZ8.2
1
AGND D180 RLZ8.2 C123
AGND 1 100pF
2 C124
2
100pF
RLZ8.2 D152
3
D181 RLZ8.2
AGND AGND AGND AGND AGND
OPTICAL_IN
VCC5B
Y_D2
D4_2_CONT1
D4_2_CONT2(SC2_SW)
PB_D2
C125 C126
D4_2_CONT3 100nF 10uF
50V 16V
PR_D2 CDRL1131 MO
R132
75 75
VOUT R133
3.3K
GND_1 1/16W
OPTICAL_IN
VCC
R134
AGND AGND
2.2K
1/16W
AGND
AGND
AV Input_1
SK7
jack9p_b
GND_1 1
L100 N
R101 1K SIG_2 3
COMP1_L
SIG_1
2
GND_2
4
R102 1K SIG_4 6
COMP1_R
SIG_3 L103 N
5
GND_3
7
SIG_6 9
SIG_5
8
C105
100pF
100pF
AGND
C106
AGND AGND AGND AGND
1K
R108
COMP2_L
R110 1K
COMP2_R
AV Input_2
SK9
jack9p_b
GND_1 1
SIG_2 L106 N
3
SIG_1
2
GND_2 4
SIG_4
6
L107 N
SIG_3 5
GND_3
7
SIG_6
9
SIG_5 8
C115
100pF
C114
100pF
1K AGND
PC_R
1K
PC_L
AGND AGND AGND AGND
AV Output
SK8
jack9p_b
GND_1 1
SIG_2 L110 N
3
SIG_1
2
GND_2 4
SIG_4
6
L111 N
SIG_3
5
GND_3 7
SIG_6
9
SIG_5
8
1K
HP_IDENT C122
100pF
1K
HP_OUT_L C121
1K
HP_OUT_R 100pF
AGND
AGND AGND AGND AGND
S_Video Input
COAXIAL_IN
(Y / C)
CN142
FT112
SIG_1 slcon6p
2 1
COAXIAL_IN
SIG_2
3
GND 1 2
jack3p_b
FT113
SK6
3
4
R140 R141
75 75
5
AGND 1/16W 1/16W
6
AGND
AGND AGND AGND
VCC5DDC
DVI Input
CN124
tpcon32p_1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2
1
9
17 3 3 3 3 3 3
2
10
18
3
11
19
4
12
20
5
13
R147
21
1/16W FT135
6 1 22
14
R148
22 1 TP302
TP303 22 1/16W
7 1
15
R146 R135
23
1/16W 1/16W
22 22
8
16
HOT_PLUG_DETCTION
24
25
R136
26
27 22 1/16W
28
29
30
31
32 D187 D178
D183 BZX84C5V1 BZX84C5V1
D186 BZX84C5V1
D182
BZX84C5V1
AGND D179 D185 BZX84C5V1
BZX84C5V1 BZX84C5V1
VCC5DDC
AGND
AGND AGND AGND
MAIN_L/R_OUT
R100 1K
CN103
AV_R
slcon4p
1 MAIN_R_OUT2
R103 1K
2 MAIN_R_OUT1
AV_L
3 MAIN_L_OUT1
AV_CVBS
4 MAIN_L_OUT2
R107
75
1/16W
AGND
GND_AMP GND_AMP GND_AMP GND_AMP
SUR_L/R_OUT
CN108
slcon4p
1
SUR_R_OUT2
R111 1K
2 SUR_R_OUT1
SC1_R_IN
3 SUR_L_OUT1
R112 1K
SC1_L_IN 4 SUR_L_OUT2
SC1_CVBS_IN
R116
75
1/16W
GND_AMP GND_AMP GND_AMP GND_AMP
AGND
CENTER_OUT
CN114
slcon2p
1
CENTER_OUT1
R149
CENTER_OUT2
1/16W 2
330
SC1_R_OUT
R150
330 1/16W
SC1_L_OUT
SC1_CVBS_OUT
GND_AMP GND_AMP
WOOFER_OUT
FT111
SIG_1
2 R129 1K
WOOFER_OUT
SIG_2 3
GND 1
jack3p_b
D154
SK5
1
RLZ8.2
GND_AMP
1
2
SVHS_C D160
3 RLZ8.2
SVHS_Y
GND_AMP
C127
100pF
C128
100pF
AGND AGND TUNER_JACK
TP304
TESTPOINT
1
RX0_
CN135
RX0+
TUNER_JACK
1
2
RX1_
3
RX1+
4
RX2_
RX2+
RXC_
TUNER_GND
FT136 RXC+
AGND TUNER_GND
FT923
1
AGND
AGND AGND
GND_AMP
RX2+
RX2_
RX1+
RX1_
RX0+
RX0_
RXC+
RXC_
PC_DDC_SCL
DDC_VCC5D
PC_DDC_SDA
IDENT_PC
PC_DDC_VSYNC
PC_BLUE
PC_DDC_HSYNC
PC_GREEN
PC_RED
T110
T120 T130
3 3 3
R142 R143 R144
150 150 150
1/16W 1/16W 1/16W
2 1 2 1 2 1
AGND
VCC5B STD_VCC3B VCC5DDC STD_VCC5B STD_VCC6A
FT100 FT929 FT102 FT928 FT927
CN136
dcon30p_j
SW_SMPS TP305 1
TP306 2
TP308 3
TP309 4
CH+_OUT TP310 5
TP311 6
VOL+_OUT 7
TP312
BUZER_IN
8
TP313 9
CH-_OUT
10
TP314
VOL-_OUT
TP315 11
SOURCE_OUT
TP316 12
MENU_OUT
13
TP317 14
TP318 15
16
TP319 17
TP320 18
19
IR TP321 20
LED_GRN TP322 21
LED_RED
TP323 22
23
AV_CVBS TP324 24
25
SVHS_Y TP325 26
27
28
SVHS_C TP326
29
SC1_RGB_FB TP327 30
C107 C108 C109 C110 C136
22uF 22uF 22uF 22uF 22uF
AGND
16V 16V 16V 16V 16V
AGND
CN137
dcon30p_j
SC1_R_SC1_SVHS_CI TP328 1
2
SC1_G TP329
TP330 3
SC1_B_SC1_SVHS_CO
TP331 4
5
TP332
SC1_CVBS_IN
6
SC1_CVBS_OUT TP333 7
8
TP334 9
SC2_CVBS_IN
10
TP335 11
SC2_SVHS_CI
12
TP336 13
SC2_CVBS_OUT
14
TP337 15
SC2_SVHS_CO
16
TP338
Y_D1 17
18
PB_D1 TP339 19
TP340
PR_D1 20
21
TP341 22
Y_D2
23
PB_D2 TP342 24
PR_D2 TP343 25
26
TP344 27
Y_COMP1
28
TP345 29
PB_COMP1
TP346 30
PR_COMP1
AGND
CN138
dcon30p_j
TP347 1
Y_COMP2
TP348 2
TP349 3
PB_COMP2
PR_COMP2 TP350 4
5
D4_1_CONT1 TP351
D4_1_CONT2(SC1_SW) TP352 6
D4_1_CONT3 TP353 7
D4_2_CONT1
TP354 8
TP355 9
D4_2_CONT2(SC2_SW)
TP356 10
D4_2_CONT3
TP357
AV_L 11
TP358 12
AV_R
13
TP359
SC1_L_IN 14
TP360 15
SC1_R_IN
16
SC1_L_OUT TP361 17
TP362 18
SC1_R_OUT
19
SC2_L_IN TP363 20
TP364 21
SC2_R_IN
22
SC2_L_OUT TP365 23
TP366 24
SC2_R_OUT
25
26
COMP1_L TP367
TP368 27
COMP1_R
28
29
TP369
COMP2_L
TP370 30
COMP2_R
AGND
CN139
dcon30p_j
TP371 1
PC_L
TP373 2
PC_R
TP372 3
4
COAXIAL_IN TP374
5
OPTICAL_IN TP375 6
7
TP376 8
PC_RED
FT920 TP377 9
PC_GREEN
TP378 10
ACM2012-361-2P
PC_BLUE
11
1 I1 O2 4
PC_DDC_HSYNC TP379 12
TP380 13
PC_DDC_VSYNC
2 3 14
I2 O1 PC_DDC_SCL TP381 15
TP382
FT925 PC_DDC_SDA 16
TP383 17
ACM2012-361-2P IDENT_PC
TP384 18
1 I1 O2 4 TP385
19
TP386 20
2 3
TP387 21
I2 O1 TP388
22
1 4
I1 O2 23
TP389 24
2 3 25
TP390
I2 O1 26
1 4
I1 O2 TP391 27
28
TP392
2 3
29
I2 O1
DDC_VCC5D TP393 30
FT926
ACM2012-361-2P
FT919
ACM2012-361-2P AGND AGND
CN143
dcon24p_j
TP394
1
TP395 2
HP_IDENT
3
TP396 4
HP_OUT_L
5
6
TP397
HP_OUT_R
7
1
MAIN_L_OUT1 L119 4
TP398 8
WOOFER_OUT
INSTPAR 9
TP399 10
2 3
MAIN_L_OUT2
TP400 11
MAIN_R_OUT1 1
L120 4
12
TP401 13
INSTPAR
TP402 14
MAIN_R_OUT2 2 3
15
SUR_L_OUT1 1 4
L121 TP403 16
INSTPAR TP404 17
18
SUR_L_OUT2 2 3
TP405 19
SUR_R_OUT1 1
4
L122 TP406 20
INSTPAR 21
TP407
SUR_R_OUT2 2 3 22
CENTER_OUT1 TP408 23
1 4
L123
TP409 24
INSTPAR
CENTER_OUT2
2 3
GND_AMP