Buffalo FTD-G931AS Service Manual page 23

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CN301
RXD
6
DB15
TXD
6
11
1
6
12
2
7
13
3
8
14
4
9
PC5V
15
5
10
VGA_CON
D322
D323
TZMC5V6-GS08 NC
4/2/2004-Add R329,R330
TZMC5V6-GS08 NC
D301
D302
BAV99
BAV99
HSI
FB304
430 OHM
VSI
R312
100
 
1/16W
D319
D320
TZMC5V6-GS08
TZMC5V6-GS08
VCC5V
CN302
8/9/2004-Add DVI
CABLE Detect
25
R
26
R331
G
27
B
29
10K
 
1/16W
RGB GND
28
HSYNC
8
VSYNC
15
R332 1K
1/16W
DVI_HPD
 
SYNC GND
6
CLK_DDC2
DDC SCL
7
DAT_DDC2
DDC SDA
14
+5V
16
HPD
11
R333
1/3shield
3
D325
D314
2/4shield
19
LL5232B 5.6V 5%
0/5shield
22
MLL5232B 5.6V
clk shield
18
DAT0+
17
DAT0-
10
DAT1+
9
DAT1-
2
DAT2+
1
DAT2-
13
DAT3+
12
DAT3-
5
DAT4+
4
DAT4-
21
DAT5+
20
DAT5-
23
clk+
24
clk-
D306
D307
D308
JACK NC
BAV99
BAV99
BAV99
C318
C319
C320
VCC5V
0.1uF
0.1uF
0.1uF
FB301
0
 
1/16W
R301
33
 
1/16W
C304 0.047uF
FB302
0
 
1/16W
R302
33
 
1/16W
C305 0.047uF
FB303
0
1/16W
R303
33
1/16W
C306 0.047uF
 
 
R304
470
 
1/16W
C307 0.001uF
R325
C301
C302
C303
75
 
1/16W
NC
NC
NC
R305
68
 
1/16W
C308 0.047uF
R306
68
 
1/16W
C309 0.047uF
R307
68
 
1/16W
C310 0.047uF
D303
VCC5V
BAV99
VCC5V
R308
10K
1/16W
 
R309
100
 
1/16W
R310
1K
 
1/16W
R311
1K
 
1/16W
D324
BAV99/NC
C311
R313
C312
R314
D317
TZMC5V6-GS08
47pF
2.2K
1/16W
220pF
2.2K
1/16W
 
 
VCC5V
CLK_DDC
DAT_DDC
4/2/2004-Add D324 Solution
D321
D318
TZMC5V6-GS08
TZMC5V6-GS08
6
DDC_DAT
6
DDC_CLK
DVI_DET
6
R319
100
 
1/16W
DVI5V
R321
R320
100
 
1/16W
10K
 
1/16W
2004/09/05
ADD ESD
D315
D316
C314
LL5232B 5.6V 5%
LL5232B 5.6V 5%
Solution
0.1uF
R343 10
 
1/16W
R344 10
 
1/16W
R345 10
 
1/16W
R346 10
1/16W
 
R347 10
 
1/16W
R348 10
 
1/16W
R349 10
 
1/16W
R350 10
 
1/16W
D309
D310
D311
D312
D313
BAV99
BAV99
BAV99
BAV99
BAV99
C321
C322
C323
C324
C325
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
RIN
4
GIN
4
BIN
4
SOG
4
GNDR
4
GNDG
4
GNDB
4
VCC5V
PC5V
D304
ST_DET1 6
BAV70
HSYNC
4
2004/08/19 ADD
VSYNC
4
DSUBDDC_5V
R317
R335
R318
U301
10K
 
1/16W
10K
 
1/16W
4.7K
 
1/16W
8
1
VCC
A0
7
2
WP
A1
R315
100
 
1/16W
6
3
SCL
A2
R316
100
 
1/16W
5
4
SDA
GND
M24C02WMN6
operating
R341
NC
voltage-2.5v-5.5v
R342
NC
VCC5V
DVI5V
D305
BAV70
operating
voltage-2.5v-5.5v
DVIDDC_5V
R323
R324
U302
10K
 
1/16W
10K
 
1/16W
R336 4.7K
 
1/16W
8
1
VCC
A0
7
2
WP
A1
6
3
B+
4
SCL
A2
5
4
B-
4
SDA
GND
G+
4
M24C02WMN6
G-
4
R334
R+
4
R-
4
NC
8/9/2004-Add DDC/CI
Solution
DDC_WP 6
4/2/2004-Add W/P control by MCU
CLK+
4
CLK-
4
23
C313
0.1uF
VCC5V
DVIDDC_5V
DSUBDDC_5V
R340
D326
0
 
1/16W
BAV70
U303
12
14
DDC_CLK 6
0A
ZA
13
1A
15
DDC_DAT 6
ZB
2
0B
1
1B
4
ZC
5
0C
3
1C
6
16
INH
VCC
11
SA
10
7
SB
VEE
9
8
SC
GND
C316
0.1uF
74VHC4053
VCC5V
R338
10K
 
1/16W
C315
R337
4.7K
 
1/16W
0.1uF
C317
R339 4.7K
 
1/16W
B
DDCCI_SEL 6
0.1uF
Q301
PMBS3904
Title
TSU16/56AK
Size
Document Number
C
INPUT
Date:
Wednesday, October 06, 2004
Sheet
3
of
6
BUFFALO FTD-G931AS/BK
Rev
B

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