Panasonic KV-S2065L Service Manual page 77

Error Code
F69 Back Side Lamp Lighting Error
F70 Size Detector Error
F80 Double Feed Detector Error
Note:
If neither LCD indication nor memory accessed from CPU work
properly when initializing, LED6 to LED1 ( D106 - D101 ) status can
be available for troubleshooting.
Possible Cause
77
Check Point
Check the CIS ( B ) Cable
Check the CIS ( B ) LED Cable
Replace the Back Side Image Sensor
Replace the DRIVE Board
Replace the MOTHER Board
Replace the MAIN CONTROL Board
Check the Hopper Extension Tray
Check the SIZE DETECTOR Board
Check the HOPPER POSITION Board
Check the RELAY ( LOWER ) Board
Replace the SIZE DETECTOR Board
Replace the HOPPER POSITION Board
Replace RELAY ( LOWER ) Board
Replace the MOTHER Board
Replace the MAIN CONTROL Board
Remove any dust on the Supersonic
Receiver on the WAITING LED Board,
Supersonic Generator on the WAITING
SENSOR Board
Check that the Supersonic Receiver
WAITING LED Board, Supersonic Generator
the WAITING SENSOR Board
Check the WAITING LED Board Cable
Check the RELAY ( LOWER ) Board
Check the Waiting Sensor Cable
Check the RELAY ( UPPER ) Board
Replace the WAITING LED Board
Replace the WAITING SENSOR Board
Replace RELAY ( LOWER ) Board
Replace RELAY ( UPPER ) Board
Replace the MOTHER Board
Replace the MAIN CONTROL Board
Check the Starting Position Sensor
Replace the STARTING POSITION
Board