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| rst 5.6 & rct 7.6 service manual 2007_rev1.0
RST5.6 & RCT 7.6 Sears Service Manual 2007
Membrane Key Pad Overlay Troubleshooting
Symptom
Possible Cause
Test Procedure
Repair
All or some of the keys on the
console will not work.
Ribbon cables connecting the
membrane keypad to upper
board are not seated properly or
are disconnected or membrane
keypad is defective.
Upper board or raised tactile
buttons defective.
-Verify the ribbon cables are
connected securely into the
upper board.
Reference Upper Board Wiring
Diagram (User 1 & 2
Connections) (p. 18 & p. 19)
-Keys are pressed and there are
corresponding beeps, but
console does not respond.
(Sometime the key will not
beep until it is released.)
Remove and reseat cables
.
Replace upper board.
