Lexmark C540n Service Manual page 241

Controller board connectors (continued)
Note: SW indicates voltage is switched on during a print cycle, otherwise voltages are taken with printer
at Ready state (door closed) and cables plugged in.
Connector
JLVPS1
Low-voltage power supply
JMIRR1
Mirror motor connector
JOPP1
Operator panel connector
Pin no. Signal
1 +5 V dc
2 Ground
3 +5 V dc
4 Ground
5 +5 V dc
6 Ground
7 +24 V dc
8 Ground
9 +24 V dc
10 Ground
11 +24 V dc
12 Ground
13 RELAY_DRIVE
14 ZERO_XING_IN
15 HEAT1_ON
16 Ground
1 MM_REFR
2 MM_LOCK, +3.3 V dc
3 MM_START
4 Ground
5 +24 V dc
1 I2C_DATA
2 V_PANEL+5 V, +5 V dc
3 I2C_CLK
4 Ground
5 OP_IRQ_N, +4–5 V dc
6 +3.3 V dc
7 Ground
5025-2xx, 4xx
Connector locations
5-7
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