IBM System/36 Maintenance Information Manual page 80

507 Control Panel Service Check
Notes:
1. This service check needs a dedicated system. Ensure that the customer has ended all jobs and closed all
files.
2. Power off the 5363 before exchanging FRUs.
3. When this service check instructs you to exchange the control panel, see "510 Control Panel Removal"
on page 5-9.
4. Perform this service check to verify any repair.
This service check tests the following control panel functions:
• Security switch
• Lamp test
• Select Function key/Input key
• Display key
You must perform this service check in the sequence given.
1. Power Off/Power On Test
a. Set the Security switch to the Service position.
Ifthe system is powered on, go to step lc. If the system is powered off, go to step 1 b.
b. Power on the 5363 system.
c. If the Power On light is on, continue with step Id. If the Power On light is not on, record a power
SRC of 9901. Suspect the following FRUs:
% FRU
66
Power supply
18 Control panel
8
Operator panel cable
8
Power cord
d. If the Power On light remains on, go to step 2. If the Power On light goes off, record a power SRC
of 9901 and go to step Ie.
Note: Customer data can be lost if jobs are not ended and files are not closed before powering off.
e. Power off, and continue with step If. If the system does not power off, record a power SRC of 990A
and go to step Ig.
5-4
5363 Maintenance Information