Rap 13 Blank Or Garbled Display - Xerox Document Workcenter 150 Service Manual

RAP 13 Blank or Garbled Display
This procedure is used for the conditions of blank
or garbled display. It does not apply to displays
which are legible, but incorrect.
lnitiai Actions:
* Ensure that the connectors on the main PWB
and the control panel are correctly seated.
* Ensure that the connectors and the harness
are not damaged.
Procedure
1. The control panel harness is good.
i " Replace the control panel harness
(PL 2.31).
2. Access connectors CNl and CN2 on the
control panel. Disconnect the connectors and
measure the voltages at the following pins.
CN1.6
_ _ ._ _ _. _ _ _. _ _ _. _. _ _. +5",,c
CNZ-1,2,3,6&12 ----------- +SVDC
The voltages are correct.
i
N Replace the Main PWB (REP 8.1)
3. Replace the Control Panel Assembly
(REP 2.1).
DC CD
-L
+5 "DC
CONTROL PANEL
HARNESS PL 2.1
DATA LINES
CONTROL LlNES
DATA LINES
CONTROL LINES
--
--
C
-
c
,
CONTROL PANEL
PLZ.1
:N2
-
LCD
Document WorkCenter 150
5196
2.7
RAP 13 Blank or Garbled Display