Xerox 3050 Service Manual page 173

Copier is Disabled by the Ke
A
Lock (Key Lock switch Open
r
if the problem persists, replace the Controller
RAP (W/O TagIMOD 25)
PWB ( ~ 3 ) .
(311 2/93)
This R A P
is
used to locate problems with the
Key Lock Switch and associated circuitry. The
following message will be displayed: Copier
i s Disabled by the KeyLock.
NOTE: The circuit
diagram
and the
component locator drawings are on the
following page,
Initial Actions
Ensure that Connectors A2P216 on the
Low Voltage Power Supply (A2) and
S23 J1IP1 are correctly installed and
fully seated.
Procedure
Open the right side door and cheat the right
side door interlock switch (S21).
There is
+
5 VDC at A2 PI1 216 Pin 15 with the
Key Switch open
(in
the off Position).
Y N
(
Replace the LVPS Driver PWB
(A2).
A2 PIJ 216 Pin 15 goes from
+
5 VDC
to less
1
VDC
when the Key Switch is turned on.
Y N
Go
to FLAG 1 and check the wiring for an
open circuit. If there
is
no open circuit
replace the Key Switch (S23). If the
problem persists, replace the LVPS Driver
P W B (A2).
r
LVPSI DRIVER PWB (A2)
2-21
5
Copier is Disabled b the Key Lock RAP
~ I O ~ a ~ l MOD 25)