Service manual

EPSON EPL-5800 Revision B
Appendix Connectors 96
7.2.3 Connector Pin Assignment
LVPS
CN1
• Heater lamp
• Thermostat
3---
CN2 (To C361MAIN board) 7 ---
CN3 Interlock Switch 3 ---
Table 7-2. Connector CN1/2
Pin No. Signal I/O Description
2-9,21-27,35,37,38,
49-54,56-60,62-64
D0-D31 I/O
Data bus
11-20,28,29,31-33,36
45,46,55,65-68,71
A0-A23 O
Address bus
44 /CS O DIMM Select signal
34 /RD O Read signal
47,48 /WR0,/WR1 O Write signal
40-43 /BE0-/BE3 O Byte enable signal
69 /ID I Detect pin
10,30,61 VCC --- +5V
1,39,72 GND --- Ground
70 NC --- (Not used)
Table 7-1. Connector List
Connector Description Pin # Table
Table 7-3. Connector CN3
Pin No. Signal I/O Description
1 /STB I STROBE signal
2 - 9 DATA1-
DATA8
I/O
Data signal (Bit 1 to 8)
10 /ACK O ACKnowledge signal
11 BUSY O BUSY signal
12 PE O Paper End signal
13 SELOT O (Always HIGH)
14 /AUTO I 1284 mode request signal
15 NC --- (Not used)
16 GND --- Ground
17 CG --- Chassis ground
18 NC --- (Not used)
19-30,33 GND --- Ground
31
/INIT I
The printer is kept in busy state while this
signal is in LOW state.
32 /ERR O ERROR signal
34 NC --- (Not used)
35 +5 --- +5V
36 /SELIN I (Always LOW)
Table 7-4. Connector CN4
Pin No. Signal I/O Description
3 /LCD O Chip select signal
4 A1 O Address signal
5 /LCDWR O LCD Write signal