Toshiba SD-P1850SN Service Manual page 16

1 2
MAIN BOARD CIRCUIT DIAGRAM
A
(TFT DISPLAY CIRCUIT DIAGRAM)
L44 R232
27
C/U
601H
R270 C243
75 C244
680P 330P
R27
L3 18
B
VIDEO-IN
601H
C104 R241
C89 390P 56
680P
VD10
Y/V
STZ6.2N
AVDD33 R236
75
R123 47K
1 2
R218 47K
1 2
R151 47K
1 2
C
C20 R122
R217
R150 C82 C188 10K
10K
10K
0.1uF
0.1uF 0.1uF
G1
27MHZ
TFTREST
2 1
R193 R160
1M 33
D C201 C200
20PF 20PF
VDD33
CB57 CB48 CB59 CB38
0.1uF 0.1uF 0.1uF 0.1uF
VDD25
E
C81 CB52 CB39 CB32
10U/16V 0.1uF 0.1uF 0.1uF
AVDD33
CB54 CB55 CB60 CB56 CB36
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
+5V
F
+5V
CB61
0.1uF
R198
39K
IOR 1
C219
10U/16V
R215
75 R199
10K
G
3 4
R233 AVDD33 VDD33
47
N17
C252
470N
6
AC0/ACB0
C91 470N
5
AC1/ACB1
4
AC2/ACB2
L43 2.7UH
14
CVBS0/AY0
R235 27 C253 13
CVBS1/AY1
470N
12
CVBS2/AY2
C247 C249 R234
680P 330P 47
22
CVBS3/ACR0
21
CVBS4/ACR1
20
CVBS5/ACR2
UPD
3
CBMID
11
CGMID
19
CRMID
R172 33
2 1 29
I2CDAT(MD) IICA3/SDA
2 1 30
I2CCLK(MC) SCANB/SCL
R174 33
92
XTALI
93
XTALO
36
XCLK2MC
28
RSTB
CINT
31
CPUINT/SCANST
100
VREF
73
VREFIN
74
VREFOUT
99
FIB1
R24
+ 34
PWM
1K
C223 C222 C50
0.1uF 10U/16V 0.1uF
CB58 CB43 C205
0.1uF 0.1uF L35
10U/16V 601H
+5V
DV33
R127
20K
CB53 CB46 CB51 CB42
0.1uF 0.1uF 0.1uF
0.1uF
L42
601H
CB37 CB47 CB35 CB33
C206
0.1uF 0.1uF 0.1uF 0.1uF 16V/10U
+5V
BIAS
CB44
CB62
0.1uF
0.1uF
R200 R203 R195 R197
220 1M 39K 220
C225
1uF
VR
VD41 IOG 1 VD20
2SC2412 2SC2412
C216
10U/16V
R216
75 R196
R201 C230 10K R126
51 100pF 51
5 6
VDD25
VDD25 L38 VD35 VD30
601H RB060L RB060L
C221
0.1uF
81
VDT0
82
VDT1
83
VDT2
84
VDT3
85
VDT4
86
VDT5
87
VDT6
88
VDT7
5500
90
VCLK
38
RL
39
UD
40
STV1
41
STV2
42
GOE
43
GCLK
44
LP/OEH
45
POL/VCOM/HSO
49 STH1
STH1/HSO
50
STH2/DE
52
CPH1/LLCK1
53
CPH2/LLCK2
54
CPH3/LLCK3
71
RSET
72
COMP
R34
IOB 33
62
IOB
IOG
65
IOG
IOR R29
68
IOR
100
R107
R111 1K C257
33 100P
C22
C163
100N
100N
AVDD33
BIAS R125 R224
33 100
R229 VR5
10K 50K
+17V#
R128
12K C73 R159 R154
+
10U/16V 33K 10K
C202 R152
16V/10U 10K R155
10K
+5V
BIAS
CB45 CB49
0.1uF
0.1uF
R202 R178 R183
1M 39K 220
C224
1uF
VG
IOB 1 VD36
2SC2412
C189
10U/16V
R191
75 R181
C85 10K R184
100pF 51
7 8
U3
DV33
1
TFT-13V
2
3
L36
+17V#
4
601H
5
L- 6
L+
7
R- 8
C199 0.1uF
R+
9
10
11
C204 10u/16v
TFT ON/OFF 12
BRI 13
HV
14
15
JS1
7 8
5 6
3 4
1 2
RN7
RN1 33*4
33*4
7 8
5 6
3 4
1 2
1
2
3
4
5
VG 6
VB
7
VR 8
9
10
11
12
13
14
15
C255
16
100U/16V
17
18
19
20
R153 JS5
0
1 8
AOUT VCC
2 7
A- BOUT
R192
22K
3 6
A+ B-
VR2
R156 C186 50K
10K 47U/16V
4 5
GND B+
N19 R116
NJM3414 1K
BIAS
L9
+5V
CB50 C80 100UH
+
0.1uF C42 C72
22U 100N
R185 100uF/16v
1M
C190
1uF
VB
C191
100pF
9 10
L34
601H
+P5V
C203 C01
10U/16V 100N
+P5V