Lexmark W820 - Page 339

Connector Locations 5-33
4025-XXX
BD13 I/O PWB↔MCU PWB (2 of 7)
The following table shows the signal names for this BD:
BD14 I/O PWB↔MCU PWB (3 of 7)
Signal Name Description
MMOT$ON Switches Main Motor. 5V=Off. 0V=On
DMOT$ON Switches Developer Motor. 5V=Off. 0V=On
DMOT$REF Control signal for the Developer Motor.
FAN$LOW Switches Fuser Fan speed. 5V=Low speed. 0V=High speed
TNR#EMP Signal from the Toner Sensor. 5V=Near empty. 0V=Level ok
FAN$FAIL Monitors Fuser Fan. 5V=Fan operation problem. 0V=Fan operation normal
PWBA MCU(3/7)
PWBA I/O
P/J402
12
13
15
16
17
18
19
20
21
22
23
24
25
26
28
29
31
32
33
BLK
P/J452
9
8
6
5
4
3
2
1
40
39
38
37
36
35
33
32
30
29
28
MC#CLK
CRU$DATA
CRUM$PWR
STS##FSR1
STS##FSR1
SNR#FUT
SNR#STK
SOL#EGATE
OMOT$REV
OMOTSFWD
SNR#FEXIT
CL$RGATE
CL$FEED1
STS##FSR2
STS##FSR2
L/H$INTLK
CRU$CLK
DMOT#PHS
MMOT$PWM
P/J403
13
14
15
20
5
4
3
32
P/J453
SNR##SIZE1
SNR#LVL1
SNR#REGI
SNR#NOP1
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK