Samsung 172T Service Manual page 15

9 Schematic Diagrams
9-2 Schematic Diagram
1
+14V
PGND
+14VDC
41
+14VDC
40
+14VDC
39
P-GND
38
P-GND AUDIO_POWER_CTL
37
36
AUDIO_DPMS
35
CHK_DSUB
34
DSUB_GND
33
DSUB_SDA
Analog
32
DSUB_SCL
Signal
31
DSUB_+5V
30
V-SYNC
29
H-SYNC
28
DSUB_GND
27
B-GND
26
B-VIDEO
25
G-GND
24
G-VIDEO
23
R-GND
22
R-VIDEO
21
20
Rx2-GND
19 AGND
Rx2+
18
Rx2-
17
Rx1-GND
16
Rx1+
15
Rx1-
14
Rx0-GND
13
Rx0+
12
Rx0-
11
RxC-GND
10
RxC+
9
RxC-
8
Digital
CHK_DVI
7
Signal
DVI_GND
6
DVI_SDA
5
DVI_SCL
4
DVI_+5V
3
HPD
2
FRM_GND
1
SLCOn41P
CN202
DGND
D217
R228 BZX84C5V1
510
1/16W
1
C4
2
A
3
C3
DGND
MO17P*/MO17E*
+5V_SW
D213 D212
BZX84C5V1 BZX84C5V1
2
B
1 3
A C
IC201
R218
D214 NM24C02M8
C207 15K
QZX363C5V6
100nF 1 8
1/16W
16V
1 6 2 7
R220
C4 C1 100
3 6
2 5 4 5 100
A NC
R221
3 4
C3 C2
AGND AGND AGND
R224 22
R225 22
R299 R298 C210
510 510 15pF
1/16W 1/16W
50V
D215 D216
BZX84C5V1 BZX84C5V1
+5V
D201
BAV99LT
A2 AC2
4 3
C2 C1
5 2
AC1 A1
6 1
2 1
D203
MMBD4148SE
AGND
R710 56 (1%)
R209
75
(1%) (1%)
R203 22
R205 56 (1%)
R208
75
(1%)
R202 22 (1%)
R207
75 R204 56
(1%)
(1%)
R201 22 (1%)
2 1 2 1 2 1 2 1 2 1 2 1 2 1
3 3 3 3 3 3 3
D204 D205 D206 D207 D220 D221 D222
MMBD4148SE MMBD4148SE MMBD4148SE MMBD4148SE MMBD4148SE MMBD4148SE MMBD4148SE
+5V +5V_SW
MO17PS Only
R226
10K
1/16W
R227 2K
D218
BZX84C5V1
R229 R230
47K 47K
IC202
1/16W 1/16W
NM24C02M8
R231 100
C212
5 4
100nF
6 3
R232 100 16V
6 7 2
C1 8 1
5
NC
4
C2
D219
DGND
QZX363C5V6
R219 Close to respective power pins
15K
1/16W
DDC_SCL
DDC_SDA
+5V
11
R222
10K
1/16W
R223 2K
CHK_DSUB
AUDIO_CTL
A_V_SYNC
DER[7:0]
A_H*V_SYNC
C211
22pF
DER(7)
50V
DER(5)
DEG[7:0]
DEG(0)
DEG(1)
10
DEG(2)
DEG(6)
AGND
DEG(7)
DEG(3)
DEG(4)
DEG(5)
DEB[7:0]
DEB(0)
DEB(6)
DEB(7)
DEB(1)
DEB(2)
DEB(3)
C221 C222 C223 DEB(4)
15pF 15pF DEB(5)
5pF
50V 50V AGND
50V
R409
R410
DGND
C206 10nF
BLU- DHS
DVS
DEN
C203 10nF
BLU+ DCLK
LVDS_EN
C205 10nF
GRN-
DOR[7:0]
C202 10nF
GRN+
GRN
DOR(7)
C204 10nF
DOR(5)
RED-
DOG(0)
C201 10nF
DOG(1)
RED+ DOG(7:0)
DOG(2)
DOG(6)
+5V
DOG(7)
DOG(3)
DOG(4)
DOG(5)
2 1 DOB(0)
12
DOB(6)
DGND
3
DOB(7)
DOB(7:0)
DOB(1)
D223 DOB(2)
MMBD4148SE
R217 22
DOB(3)
Rx2+
DOB(4)
R216 22 DOB(5)
Rx2-
R215 22
Rx1+
13
R214 22
Rx1-
R213 22
Rx0+
14
R212 22 Rx0-
R211 22
RxC+ 15
R210 22
RxC-
C635
100nF
Close to respective power pins
CHK_DVI
+5V_SW
R241
IC204 0
GS1881-CKA 1/16W
8 1
7 2
6 3
R242
C240
330
10nF
5 4
1/16W
50V
C241
100pF
50V
C245 R243 C242
100nF 680K 100nF AGND
1/16W 16V
+3.3V
FT405
TP499
C410 C411 C412 BLM41P600S
100nF 100nF 100nF
1
PANEL_5V
C413
2
100uF B 2
FT404
1
A 1 BLM41P600S
FT402
BLM41P600S
DGND
IC401
NT7181F
1 56
DER(4)
VCC
TXIN4
2 55
DER(3) 9
TXIN5
TXIN3
3 54
DER(2)
TXIN6 TXIN2
4 53
8
TXIN7 GND5
5 52
DER(1)
GND1 TXIN1
6 51 DER(0)
TXIN8 TXIN0
7 50 DER(6)
TXIN9
TXIN27
8 49
TXIN10
LVDSGND
9 48 TXE0-
VCC1 TXOUT0-
10 47 TXE0+
TXIN11 TXOUT0+
11 46 TXE1-
TXIN12 TXOUT1-
12 45 TXE1+
TXIN13
TXOUT1+
13 44
GND2 LVDSVCC 7
14 43
TXIN14 LVDSGND1
15
42 TXE2-
TXIN15 TXOUT2-
16 41 TXE2+
TXIN16 TXOUT2+
17 40 TXECLK-
R_FB TXCLKOUT-
18 39 TXECLK+
TXIN17 TXCLKOUT+
19 38 TXE3-
TXIN18 TXOUT3-
20 37 TXE3+
TXIN19 TXOUT3+
21 36
GND3 LVDSGND2
35
22
TXIN20 PLLGND
23 34
TXIN21 PLLVCC
5 6
24 33
TXIN22
PLLGND1
25 32
TXIN23 PWRDWN
26 31
VCC2 TXCLKIN
27 30
TXIN24 TXIN26
28 29
0
TXIN25 GND4
0
IC402
NT7181F
1 56
DOR(4)
VCC TXIN4
2 55 DOR(3)
TXIN5 TXIN3
3 54 DOR(2)
TXIN6 TXIN2
4 53
TXIN7 GND5
5 52 DOR(1)
GND1 TXIN1
6 51
DOR(0)
TXIN8
TXIN0
7 50
DOR(6)
TXIN9
TXIN27
8 49
TXIN10
LVDSGND
9 48 TXO0-
VCC1 TXOUT0-
10 47 TXO0+
TXIN11 TXOUT0+
11 46 TXO1-
TXIN12 TXOUT1-
12 45 TXO1+
TXIN13 TXOUT1+
13 44
GND2 LVDSVCC
14 43
TXIN14 LVDSGND1
15 42 TXO2-
TXIN15 TXOUT2-
16 41 TXO2+
TXIN16 TXOUT2+
17 40 TXOCLK-
R_FB TXCLKOUT-
18 39 TXOCLK+
TXIN17 TXCLKOUT+
19 38 TXO3-
TXIN18
TXOUT3-
20 37 TXO3+
TXIN19
TXOUT3+
21 36
GND3 LVDSGND2
22 35
TXIN20 PLLGND
23 34
TXIN21 PLLVCC
24 33
TXIN22 PLLGND1
25 32
TXIN23 PWRDWN
26 31
VCC2 TXCLKIN
27 30
TXIN24 TXIN26
28 29
TXIN25 GND4
C634
100nF
C633 C416 C417
C636 C637
100nF 100nF 100nF
100nF 100nF DGND
+5V_SW
14 1
N A IN
SOG_CSYNC 13 2
SOG_CTL M B IN
12 3
*SOG_CTL
L C IN
SOG_CSYNC
11 4
K D IN
GRN
10 5
R240
J E IN
*SOG_CTL
6
9 10K
*A_H*V_SYNC I F IN
7
8 1/16W
H IN G
H*V_SYNC
C246 IC220
100nF N74F125D
R270
AGND
0
1/16W
CONFIDENTIAL
FT403
C414 C415
BLM41P600S
10uF 100nF
TP1474
CN402
slcon30p
1
2
3
4
DGND
5
DE 6
7
R699 47 8
R698 47 9
R697 47 10
R696 47 11
R695 47 12
R694 47 13
14
R693 47 15
R692 47 16
17
R691 47 18
R690 47 19
R420 47 20
R419 47 21
R418 47 22
R417 47 23
24
R416 47 25
R415 47 26
R414 47 27
R413 47 28
R412 47 29
R411 47 30
R709
R421
0
0
DGND
9-3