ViewSonic VG181 Service Manual page 26

Service Manual ViewSonic
VG181 July 2000 - Version 1.0
THEORY OF CIRCUIT OPERATION
PIN DESCRIPTION OF U32 :
Vec
Power of TTL input
Odd pixel (second pixel) bus of Red bit 1
Odd pixel (second pixel) bus of Red bit 7
Odd pixel (second pixel) bus of Green bit 2
Ground of TTL input
Odd pixel (second pixel) bus of Green bit 3
Odd pixel (second pixel) bus of Green bit 4
Odd pixel (second pixel) bus of Green bit 0
Power of TTL input
Odd pixei (second pixel) bus of Green bit 1
Odd pixel (second pixel) bus of Green bit 5
Odd pixel (second pixel) bus of Green bit 6
Ground of TTL input
Odd pixel (second pixel) bus of Green bit 7
Odd pixel (second pixel) bus of blue bit 2
Odd pixel (second pixel) bus of blue bit 0
Edge select for latching data
Odd pixel (second pixel) bus of blue bit 1
Odd pixel (second pixel) bus of blue bit 3
Odd pixel (second pixel) bus of blue bit 4
Ground of TTL input
+
2s
=
oO
| 20 | TxXINIS
22 Odd pixel (second pixel) bus of blue bit 5
23 TXIN21 Odd pixel (second pixel) bus of blue bit 6
24 TXIN22 Odd pixel (second pixel) bus of blue bit 7
Unused
Power of TTL input
H-Sync for panel
V-Sync for panel
Ground of TTL input
Data Enable for panel
TXIN25
29 GND
30
TXIN26
Page 24
Confidential - Do Not Copy