Sony SDM-N50PS Service Manual page 27

3
1 2
A
D208
MA3075WA-(TX)MA3075WA-(TX) MA3075WA-(TX)
INPUT1
CN102
6
R277
0
11 1
7
R278
0
12 2
8
R279
0
B
13 3
9 R209
75
1/10W
14 4
D214
10
MA8082-H-TX
1 2
15 5
D215
MA8082-H-TX
1 2
FB208
FB1
0UH
FB209
FB1
C 0UH
FB210
0UH FB1
FB211
0UH FB1
FB212
0UH FB1
PS201
R258 R259
2.2k 2.2k
1/16W 1/16W
MA8082-H-TX
D211
INPUT2
D CN103 MA3075WA-(TX)
6
R280
0
11 1
7
R281
0
12 2
8
R282
0
13 3
R226
E 75
9
1/10W
14 4
D219
10
MA8082-H-TX
1 2
15 5
D220
MA8082-H-TX
1 2
FB216
FB1
0UH
FB217
FB1
0UH
FB218
0UH FB1
F FB219
0UH FB1
FB207
FB1
0UH
R238
PS202 R239
2.2k
2.2k
1/16W
1/16W
G
• Divided circuit diagram
One sheet of A-P2 board circuit diagram is divided into two
sheets, each having the code A-P2-a to A-P2-b . For
H
example, the destination ab1 on the A-P2-a sheet is
connected to ab1 on the A-P2-b sheet.
1
a b
Ref. No.
Circuit diagram division code
I
A
-P2-a
(RGB PROCESSOR)
J
4 5 6
D209 D210
5V
2 2 2
3 3 3
1 1 1
RED1
GREEN1
BLUE1
R210 R211
75 75
1/10W 1/10W
DDC1_VCLK TO P1-a
R253
47
HS1
1/16W
RED2
R256
47
VS1
1/16W
R201 0
DDC1_SCL GREEN2
R202 0
DDC1_SDA
TO P1-a
R203 0
DDC1_GND BLUE2
DDC1_5V
2 2 2 2
1 1 1 1
D216 D218
MA8082-H-TX D224
D217
MA8082-H-TX
MA8082-H-TX
D213
D212
MA3075WA-(TX)
MA3075WA-(TX)
2 2 2
INPUT_SEL
3 3 3
1 1 1 TO P1-b
R227 R228
75
75
1/10W 1/10W
C260
0.1
25V
F
DDC2_VCLK TO P1-a
R235
47
1/16W HS2
R236
47
VS2
1/16W
R205 0
DDC2_SCL
R206 0
DDC2_SDA
TO P1-a
R207 0
DDC2_GND
DDC2_5V
2 2 2 2
D225
MA8082-H-TX
1 1 1 1
D222
MA8082-H-TX
D221 D223
MA8082-H-TX MA8082-H-TX
C240
IC207 0.1
25V
TC74VHC125FT(EL)
F
SYNC SELECT
FB201
0UH
FB2
STBY5V
C259
0.1
25V
F
GND
4-13
7 8 9
L201
47µH
5V
C201
C203
47
0.01
10V
25V
B
C205
22
10V
C207
C209
47 C210
0.01
0.1
10V
25V 25V
B R212 F
47 VCC1(R) VCC2(R)
1.7
1/16W 2.0
C213
IN1(R) OUT(R)
C216
47
0.01
10V C212
VCC1(G) GND
25V 0.1
R215
B 25V
47
1.7 NC NC
F
1/16W
IN1(G) NC
C214
R217
0.1
47 VCC1(B) VCC2(G)
25V 1.7 2.0
1/16W
F
IN1(B) OUT(G)
IN1(H) GND
IN1(V) VCC2(B)
R222 2.0
47 GND OUT(B)
1.3
1/16W
IN2(R) GND
1.1
R224
47 GND OUT(SOG)
C220
1/16W 1.3
47
IN2(G) VCC
10V
C222
NC NC 0.1
R229
25V
C221 47
GND OUT(H) F
C223 0.01 25V B
1/16W 1.3
47
IN2(B) OUT(V)
10V
IN2(H) GND
4.9
C224
IN2(V) SW
C225 0.01 25V B
47
10V
IC205
M52758FP
VIDEO SW
C226
0.01 25V B
STBY5V
IC208
TC74VHCT14AFT(EL)
R241
INV 10k
1/16W
C234 4.3 0
4.7
HSCTL POLH
10V
1.0 4.9
C/HSYNC
C236 INEXIH
14 13 12 11 10 9 8 3.0 4.9
1
C237 VIDEO
16V INPOLV
0.47 0.9 0
F
10V VSEPA EXIV
B 5.4
VSYNC INVCC
4.9 0.4
CVPOL HDRV
0 0
1 2 3 4 5 6 7 CVEXI CLAMP
0 0
CPSEL VDRV
0
GND CPWID
IC206
BA7078AF-E2
SYNC DETECTOR
C241
0.1
25V
F
R244 C249 C250 C247 C248 C246 R243
0.47
1M 0.47 0.1 1 1 0
1/16W 10V 25V 10V 16V 16V
B F F
B F
R250
0 IC211
TC74VHC125FT(EL)
BUFFER
TH201
14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11
C268
C239
100p
50V 0.1
25V
CH
F
1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4
IC210
TC74VHC86FT(EL)
C285
SYNC SELECT
1000p
50V
SL
IC203
TC7S32FU(TE85R)
SYNC SELECT
4.9
OUT GND
IN A
VCC IN B
14 13 12 11 10 9 8
IC209
TC74VHC04FT(EL)
INV
1 2 3 4 5 6 7
10 11
12
ab1
C287
22
10V
1
C211
0.1
25V
F
ab2
2
C215
0.1
25V
F
ab3
3
C218
0.1
25V
F
ab4
AGND
ab5
R231
47
1/16W
POLH
EXITH
TO P1-b
POLV
EXITV
R242
1k 1.0 Q201
1/16W
2SC2712G-TE85L
BUFFER
D207
0.4
1SS355TE-17
R208 R255
3.9k 680
1/16W
1/16W
C284
100p
50V
C242 CH
100p R267
22
50V
CH 1/16W
ab6
4
ab7
HS
TO P1-b
VS
P3-a
10 9 8
R252
100
1/16W
5
5 6 7
ab8
R283 R284
15k 15k
1/16W 1/16W
4.9
4.9
ab9
B-SS3534<AEP>-A-P2-a(24)
4-14
• A - P2-a BOARD WAVEFORMS
1
H
0.8 Vp-p (H)
2
1.0 Vp-p (H)
3
H
0.8 Vp-p (H)
4
5.0 Vp-p (H)
5
5.0 Vp-p (V)