Lexmark C734 Service Manual page 403

System board listing (continued)
See "System board diagram" on page
Connector
JPH1
Printhead
(continued)
JSB1
Cartridge SB
JSEC1
Security jumper
JT1
Test Connector
JT2
Test Connector
JT7
Test Connector
JT10
Test Connector
JT11
Test Connector
JT12
Manual Reset
JTDBUG1
Debug
JTLBT1
LB trace port
5-2.
Pin # Signal
35 D_VDO_A-
36 Ground
37 I2C_CLK_PH
38 TG_VDO_LADJ_CD
39 I2C_DATA_PH
40 TG_VDO_LADJ_AB
1 S_SB_Y
2 Ground
3 S_SB_C
4 Ground
5 S_SB_M
6 Ground
7 S_SB_K
8 Ground
1 V2
2 Ground
3 Ground
1 Ground
2 Ground
1 Ground
2 Ground
1 Ground
2 Ground
1 Ground
2 Ground
1 Ground
2 Ground
1 MAX811_MR_
2 Ground
1 GD_DEBUG
2 Ground
1 Ground
2 TG_WF_RXD
3 TG_WF_TXD
4 +5 V dc or Ground
Pin # Signal
Connector locations
5026
5-9