Lexmark C543dn Service Manual

5-8 Service Manual
5025-2xx, 4xx
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JOPT1
Optional—Tray(s)
1TXD_PP
2 Ground
3 Ground
4RXD_PP
5 +24 V dc
6 Ground
7 +5V_OPTIONS, +5 V dc
8S2
9 Ground
10 Ground
JPH1
Printhead flat cable connector
1 VDO_HSYNC1_C, +5 V dc
2 VDO_PH_OK, +3.3 V dc
3 VDO_HSYNC0, +5 V dc
4 VDO_LEN0, +3.3 V dc
5 VDO_BOOST3
6 +3.3 V dc
7 VDO_BOOST1
8 -5V_PH, +5 V dc
9 VDO_BOOST2 (Shade B)
10 +5_PH, +5 V dc
11 VDO_BOOST0
12 Ground
13 D_VDO_7+
14 D_VDO_7–, +1.5 V dc
15 Ground
16 D_VDO_3+, +1.5 V dc
17 D_VDO_3–
18 Ground
19 D_VDO_6+
20 D_VDO_6–
21 Ground
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 Pin no. Signal

Lexmark C543dn Specifications

General

Brand	Lexmark
Model	C543dn
Category	Printer
Language	English