Toshiba 15DLV76 Service Manual page 17

A B
8
7
6
5
FROM/TO AV SWITCH
(CP4204)
CP801
00_6232_026_006_800+
POWER_FAIL
1
POWER_FAIL
POWER_ON-H
2
POWER_ON-H
STAND-BY
3
STAND-BY
4
LCD-H
5
LCDON
4
6 NC
AUDIO_MUTE
7
AUDIO_MUTE
EXT_MUTE-H
8
EXT_MUTE-H
9 NC
SCART1_Y
10
SCART1_Y
11
AFT
12
AGC
13
SDA1
14
SCL1
GND
15
GND
COMPONENT_PB
16
SCART_B or Pb
17
17 GND
18
W827
3 COMPONENT_Y
18
SCART_G & Y
19 GND
19
COMPONENT_PR
20
SCART_R & Pr
21 GND
22 SWITCH_CVBS
23 GND
W804
24 SWITCH_VIDEO_Y
25 GND
W803
26 SWITCH_VIDEO_C
2
FROM/TO SYNC SEPA
SW_CVBS
COMPONENT_Y
1
A B
H-15
C
C831
6.3V 220 YK
C821
6.3V 220 YK
C824
216 215 214 213 212 211
0.1 B
3.4
DVDD33
R812
3.4
PXD24
R807
10K 3.4
PDX25
R813
10K 3.4
PDX26
R808
10K 3.4
PDX27
R814
10K 3.4
VDIN
R809
10K 3.4
HDIN/FBIN
10K 3.4
DVDD33
C814 0
DGND
C826 0.1 B C840 0.1 B 1.6
VRPD
0.1 B
SW_CVBS C841 0.1 B 1.2
VROD
C829 0.1 B C842 0.1 B 0.7
VRMD
C825 0.1 B 0.9
VIND
3.4
AVDDD2
0
AVSSD2
3.4
AVDDD1
0
AVSSD1
C843 0.1 B 1.6
C815 VRPC
C844 0.1 B 1.1
VROC
C845 0.1 B 0.7
6.3V 220
VRMC
YK COMPONENT_PR 1.3
VINC
C813 C846 0.1 B 3.4
AVDDC2
0.1 B 0
AVSSC2
C816 3.4
AVDCC1
0.1 B 0
AVSSC1
3.4
DVDD
0
DVSS
C832 0.1 B 1.6
C827 0.1 B
VRPB
C819 C833 0.1 B 1.1
VROB
C834 0.1 B 0.7
VRMB
0.1 B
LCD-H SW_VIDEO_C 0.5
VIN1B
C817
C835 0.1 B 3.4
LCDON
AVDDB2
COMPONENT_PB 2.0
0.1 B
VIN2B
C837 0.1 B 0
AVSSB2
3.4
AVDDB1
0
AVSSB1
C847 0.1 B 1.6
C820 VRPA
C848 0.1 B 1.1
VROA
0.1 B C849 0.1 B 0.7
AFT VRMA
0.5
NC VIN1A
AGC
C822 3.4
AVDDA2
SDA1 1.3
SW_VIDEO_Y
VIN2A
0.1 B
SCL1 C850 0.1 B 0
AVSSA2
1.3
COMPONENT_Y
VIN3A
C852 0.1 B 3.4
AVDDA1
0
AVSSA1
0
SVSS
3.4
DVDD33
C828 0
DGND
3.7
0.1 B
RESET
R816
3.7
QOECTL
R811
P.CON+3.3V 3.3
10K
W805 HDIN2
SW_CVBS
R815 3.3
10K
VDIN2
20
3.4
10K
DVDD33
SW_VIDEO_Y
55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
21
SW_VIDEO_C
22
C818
0.1 B
SCALER_RESET
4SI_SCL
4SI_SDA_OUT
4SI_SDA_IN
4SI_CHIP_SE
C
D E
SCALER SCHEMATIC DIAGRAM
(SCALER PCB)
210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178
PXD23
214
DVDD18
215
216 DGND
SCALER
IC801
R8A66605A71FP
55 DGND
56 DVDD18
57 MPWEL
NC
R854
NR801
4D03WGJ0000T5E
1M
X801
W806 23
54MHz
100YT05401
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
D E
F
C897
0.1 B
177 176 175 174 173 172 171 170 169 168 167 166 165 164 163
3.4
DVDD33
0
QBR3 NC
0
QBR2 NC
0
QBR1 NC
0 C2804
QBR0 NC
DGND
163
0
DGND
6.3V 220 YK
3.4
DVDD18 DVDD33
164
0 C898
QGR7 NC
0
165 QBR4
QGR6 NC
0.1 B
0
QGR5
0 R884 10K R887 10K
QGR4
0
QGR3
0 R885 10K R888 10K
QGR2
3.4 C896
DVDD33
0.1 B
0 C899
DGND
1.8 0.1 B
DVDD18
0
QGR1
0 R883 10K R886 10K
QGR0
0
QCLKR
3.4
R889 10K
QRL7 NR802 DR9
3.4
4D03WGJ0470T5E DR8
QRL6
3.4 DR7
QRL5
DR6
3.4
QRL4
3.4 C2800
QRL3
3.4 0.1 B
DVDD33
0
DGND C2806
1.8
0.1 B
DVDD18 NR803 DR5
3.4
4D03WGJ0470T5E
QRL2 DR4
3.4 DR3
QRL1
DR2
3.4
QRL0
3.4
NR804 DB9
QBL7
3.4 4D03WGJ0470T5E DB8
QBL6 QBL5
DB7
3.4
QBL5
DB6
3.4
QBL4
NR805
3.4
DB5
QBL3
4D03WGJ0470T5E DB4
3.4
QBL2
DB3
3.4
DVDD33 C2801
DB2
0
DGND
0.1 B
1.8
DVDD18
3.4
QBL1
C2802
3.4
QBL0 0.1 B
NR806
3.4
DG9
QGL7
4D03WGJ0470T5E DG8
3.4
QGL6
DG7
3.4
QGL5 DG6
106 QGL0 C2805
0
DGND
B 0.1
3.4
DVDD18 DVDD33
107
3.4
QGL4
NR807
3.4 DG5
DGND
108 QGL3
4D03WGJ0470T5E DG4
3.4
QGL2
DG3
3.4
QGL1 DG2
0
TEST1
1.5
LPF1
R866 10K R867
0
TEST0
3.4 10K
DVD33
C2803
100 101 102 103 104 105 106 107 108
0.1 B
R865
C895
1K 0.01 B
C894
0.001 B
B804
P.CON+1.8V
BLM18PG181SN1D
24
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
F
G H
8
FROM/TO MICON
AFT
AGC
SDA1
SCL1
SCART1_Y
7
SCALER_RESET
POWER_FAIL
POWER_ON-H
LCD-H
LCDON
STAND-BY
EXT_MUTE-H
AUDIO_MUTE
4SI_CHIP_SE
4SI_SDA_OUT
4SI_SDA_IN
4SI_SCL
DVS
6
5
FROM/TO LVDS
DR2
DR3
DR4
DR5
DR6
DR7
DR8
DR9
4
DG2
DG3
DG4
DG5
DG6
DG7
DG8
DG9
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DCLK1 3
DVS
DHS
DEN
FROM/TO REGULATOR
P.CON+1.8V
P.CON+3.3V
GND
2
PCBDS0
CEF174
1
G H
H-16