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Philips 21PT836A/78 Service Manual page 32

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32
L9.1A
/78
7
Esquemas Elétricos e Guias de Placas
1
2
PROCESSAMENTO DE VÍDEO
A
A14-40
Ext2Video|Y
A15-40
Ext2C
A14-41
B
Not For Europe
A15-41
VideoOut
4207
A14-42
A15-42
+8VBimos
7258
BC847B
7.9V
3218
2.5V
100R
1.8V
C
CVBSTxt
A7-19
7.9V
7250-B
TDA8844
38
A14-43
3.4V
Ext1Video
2209
3220
17
CVBS_EXT
A15-43
100R
470n
V1
D
CVBS_INT
2211
13
A5-38
CVBS_INT
3.8V
470n
9
16
6.7V
2V
E
F
G
1
2
V1 CVBS-INT
V2
V3
0.5V / div AC
0.5V / div AC
0.5V / div AC
20ms / div
20ms / div
20ms / div
L9.1A
3
4
5
ITEM
BINORMA
FOURMA
CHINA OTHERS
1205
3M575
4M433
4M433
4M433
2217
15P
28P
220P
18P
3228
2220
15P
15P
220P
15P
100R
4206
-
JMP
-
-
4212
JMP
-
JMP
JMP
# 3265 - FOR 25"/77 ONLY
3.4V
1.2V
10
11
33
LUMOUT
34
35
36
2.5V
*
4205
2.5V
4206
2.5V
3225
RES
100K
*
*
7261
*
P1Sys2|AMFM_ExtSel
3224
BFS20
33K
*
P0Sys1|AM
3222
33K
7259
BFS20
P2LLp|Mtrap
3223
33K
7257
BFS20
FOR LATAM ONLY
3
4
5
V4
V5
V6
V7
0.5V / div AC
0.5V / div AC
0.5V / div AC
0.5V / div AC
20ms / div
20ms / div
20ms / div
20ms / div
L9.1A
6
7
8
V9
V10
4.3V
4.3V
7
8
V2
2.6V
2.6V
28
27
LUMIN
2.3V
31
BYI
29
1.9V
BYO
2.3V
32
RYI
V3
30
2.3V
RYO
RI
GI
BI
V4
23
24
25
3.5V 3.5V
3.5V
R
G
B
R_Txt|Osd
9230
A7-31
3233
2247
Ext1R
A15-44,A14-44
330R
47n
G_Txt|Osd
9231
A7-32
3232
2248
Ext1G
A7-24
A15-45,A14-45
330R
47n
B_Txt|Osd
9232
A7-33
3231
2249
Ext1B
A7-23
330R
47n
A15-46,A14-46
Ext1FB
A7-20
A15-47,A14-47
3267
FB_Txt|Osd
100R
A7-30
9233
6
7
8
V8
V9 SCL 7250
V10 SDA 7250
2V / div DC
1V / div DC
1V / div DC
20ms / div
10ms / div
20ms / div
9
10
11
SCL
SDA
3263
CRT_DISCHARGE
RES
7250-C
TDA8844
V5
21
3V
3257
RO
0243
100R
V6
1
3V
20
3258
2
GO
100R
V7
3
TO 0245 OF
2.9V
19
3259
CRT PANEL
4
BO
100R
V8
5
18
3252
BC_info
5.3V
6
BLKIN
2K2
RGBIN
BCLIN
+8VBimos
26
22
0V
2.6V
3266
RES
#
2.6V
6211
3249
1.8V
330K
1N4148
7263
BC857B
6212
3246
EHTinfo
82K
1N4148
9
10
11
= 0V
0243 C11
1205 E3
1206 E3
1207 E4
1208 E4
2209 D2
2211 D2
2212 C3
A
2213 C3
2214 E2
2215 E2
2216 E2
2217 E3
2218 E4
2219 E4
2220 E4
2221 E5
A7-22
2222 E5
2223 E3
A7-21
2226 E9
B
2227 F9
2247 E8
2248 E8
A1-49
2249 F8
3218 C2
3219 C2
3220 D2
3222 F5
3223 F5
3224 E5
3225 D5
C
3228 B3
3231 F7
3232 E7
3233 E7
3243 F8
3246 F10
3247 B7
3248 B8
3249 E10
3250 F9
3251 E10
3252 D10
D
3253 G9
3257 C10
3258 C10
3259 D10
3263 B10
3265 E10
3266 D10
3267 F7
4205 D3
4206 D4
4207 B2
4212 E4
E
6211 E10
6212 F9
6213 E9
6263 C10
6264 C10
6265 C10
7250-B C2
7250-C C9
7257 F4
7258 B2
7259 F4
F
7261 E5
7263 E9
9230 E7
A2-48
9231 E7
9232 F7
A4-48
9233 G7
9235 E9
G

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