G-110 2K Lcss Pwb Damage Rap - Xerox WorkCentre 5687 Series Service Manual

11G-110 2K LCSS PWB Damage RAP

Use this RAP to determine the cause of damage to the 2K LCSS PWB, so that the cause can
be repaired before a new 2K LCSS PWB is installed.
WARNING
Take care not to topple the LCSS.
The LCSS is unstable when un-docked from the machine.
Do not show the customer how to un-dock the LCSS.
Initial Actions
Check the fuse on the 2K LCSS PWB, If the fuse is good, continue at the procedure. If the fuse
not good, install a new 2K LCSS PWB, PL 11.26 Item 1.
Procedure
The 2K LCSS PWB can be damaged by a component connected to it going short-circuit. If a
new 2K LCSS PWB is installed and power applied to the machine, the new 2K LCSS PWB will
be damaged in the same way. The cause of the damage must be found by following this proce-
dure.
WARNING
Switch off the electricity to the machine, GP 14. Disconnect the power cord. Electricity
can cause death or injury. Moving parts can cause injury.
Remove the 2K LCSS PWB and inspect the components shown in Figure 1 for damage. The
damage to the component may be in the form of a crack, a small crater or a burnt patch. Refer
to Table 1 to locate the component causing the damage to the 2K LCSS PWB.
Status Indicator RAPs
11G-110
Figure 1 2K LCSS PWB components
Table 1 2K LCSS PWB Drive Components
2K LCSS
PWB Driven Normal resistance
component component measurement +/- 10%
U10 Rear tamper PJ312 pin A1 to A3 = 29 ohms.
motor pin A1 to A4 = 29 ohms. pin A2 to
A5 = 29 ohms. pin A2 to A6 = 29
ohms.
U11 Staple head PJ308 pin A8 to A10 = 20 ohms.
motor pin A9 to A11 = 20 ohms
U12 Front tamper PJ312 pin A7 to A9 = 29 ohms.
motor pin A7 to A10 = 29 ohms. pin A8
to A11 = 29 ohms. pin A8 to A12
= 29 ohms.
August 2007
2-332
Fuse
Spared part and
references
Tamper assembly, PL 11.16
Item 1. 11-007-110, 11-008-
110, 11-312-110, 11-313-
110, 11-319-110 RAP
Staple head unit, PL 11.20
Item 5. 11-050-110, 11-360-
110 RAP
Tamper assembly, PL 11.16
Item 1. 11-005-110, 11-006-
110, 11-310-110, 11-311-110
RAP
WorkCentre 5687 Family