Lexmark C540 - Page 208

5-6 Service Manual
5025-2xx, 4xx
JOPP1
Operator panel connector
1 I2C_DATA
2 V_PANEL+5 V
3 I2C_CLK
4 Ground
5OP_IRQ_N
6 +3.3 V dc
7 Ground
JOPT1
Options I/F
1TXD_PP
2 Ground
3 Ground
4RXD_PP
5 +24 V dc
6 Ground
7 +5V_OPTIONS
8S2
9 Ground
10 Ground
JPH1
Printhead flat cable connector
1 VDO_HSYNC1_C
2 VDO_PH_OK
3 VDO_HSYNC0
4 VDO_LEN0
5 VDO_BOOST3
6 -3.3 V dc
7 VDO_BOOST1
8 _5V_PH
9 VDO_BOOST2 (Shade B)
10 +5_PH
11 VDO_BOOST0
12 Ground
13 D_VDO_7+
14 D_VDO_7–
15 Ground
16 D_VDO_3+
17 D_VDO_3–
18 Ground
19 D_VDO_6+
20 D_VDO_6–
21 Ground
Controller board connectors (continued)
Connector Pin no. Signal