Toshiba Equium 5160D Series Preliminary Maintenance Manual page 120

Video Feature Connectors
The video features identified in Figure B-23 are the graphics DRAM upgrade sockets and the
LBP VESA connector. If the S3 ViRGE graphics option is used, two DRAM devices (1 MB)
are soldered to the system board in place of the DRAM sockets for a total of 2MB of video
memory. When the S3 V+ graphics option is used, the DRAM sockets are used to allow user
installation of 1MB of video memory, in addition to the 1MB that is already soldered to the
system board.
Table B-55 provides the pinout and signal listing for the LBP VESA feature connector.
Table B-55 LBP VESA Feature Connector (J1K1)
Pin Signal Name / Function
1 Ground
3 Ground
5 Ground
7 Enable External Pixel Data
9 Enable External Sync
11 Enable External Pixel Clock
13 N/C, not used
15 Ground
17 Ground
19 Ground
21 Ground
23 N/C, not used
25 Key (no pin)
27 Key (no pin)
29 IICCLK
31 IICDAT
33 EN1
USB Side-By-Side Connector
The USB connection to the COM2 serial port must be made using the COM2H header (J3N1)
on the system board. Table B- 56 lists the signals and pinout for the COM2H header.
TM
Equium Series Maintenance Manual------------------------------------------------------------ B-8
Pin Signal Name / Function
2 Pixel Data 0
4 Pixel Data 1
6 Pixel Data 2
8 Pixel Data 3
10 Pixel Data 4
12 Pixel Data 5
14 Pixel Data 6
16 Pixel Data 7
18 PCLK, Pixel Clock
20 BLANKING
22 HSYNC, Horizontal Sync
24 VSYNC, Vertical Sync
26 Ground
28 Key (no pin)
30 Ground
32 N/C
34 EN2