Ibm 6400 Main Wire Harness Test Tables - IBM 6400 series Maintenance Manual

Top view; as seen when plugged
PIN NO.
into the CMX board.
19 17 15 13 11 9 7 5 3 1
POD CCF PLAT M
PMD LRP LRIB M
20 18 16 14 12 10 8 6 4 2
CCF = Card Cage Fan
LRIB M = Left Ribbon Motor
LRP = Left Ribbon Post
PLAT M = Platen Open Motor
PMD = Paper Motion Detect (Switch)
POD = Paper Out Detect (Switch
Resistance
Device P106 Pins Normal
7.2 – 8.8 Ω
LRIB M 2, 4 and 6, 8
1.35 – 1.65 Ω
PLAT M 1, 3 and 5, 7
LRP 10, 12 Open across pins
Short across post
CCF 9, 11 4.6 KΩ
PMD 14, 16
8 MegΩ
18, 20 Open
POD 13, 15
8 MegΩ
17, 19 Open
P106
NOTE: For cable shell connector
assembly/disassembly, see
Figure 30 on page 199.
Main Wire Harness Test Tables
Top view; as seen when plugged
into the CMX board.
19 17 15 13 11 9 7 5
P107
MPU PLO EHF PAPR M
CVO RRP HBF RRIB M
20 18 16 14 12 10 8 6
Device
RRIB M
PAPR M
HBF
EHF
RRP
PLO
CVO
MPU
IBM 6400
PIN NO.
3 1
4 2
CVO = Cover Open (Switch)
EHF* = Exhaust Fan
HBF = Hammer Bank Fan
MPU = Magnetic Pickup
PAPR M = Paper Feed Motor
PLO = Platen Open (Switch)
RRIB M = Right Ribbon Motor
RRP = Right Ribbon Post
*Only in cabinet models
Resistance
P107 Pins Normal
7.2 – 8.8 Ω
2, 4 and 6, 8
0.417 – 0.681 Ω
1, 3 and 5, 7
10, 12
2.7 KΩ
9, 11
4.6 KΩ
14, 16 Open across pins
Short across post
13, 15 Continuity: switch closed
Open: switch open
18, 20
Continuity: switch closed
Open: switch open
670 Ω
17, 19