Kyocera AD-63 Service Manual page 217

2FD/2FF/2FG
Problem
(40) Poor contact in the upper
The size of paper in paper length switch con-
the upper drawer is nector terminals.
not displayed
Defective upper paper
correctly.
length switch.
Poor contact in the upper
paper width switch con-
nector terminals.
Defective upper paper
width switch.
(41) Poor contact in the lower
The size of paper in paper length switch con-
the lower drawer is nector terminals.
not displayed cor-
Defective lower paper
rectly.
length switch.
Poor contact in the lower
paper width switch con-
nector terminals.
Defective lower paper
width switch.
(42) Poor contact in the bypass
The printing width of paper length switch con-
the paper on the nector terminals.
bypass tray is not
Defective bypass paper
detected correctly.
length switch.
Poor contact in the bypass
paper width switch con-
nector terminals.
Defective bypass paper
width switch.
1-5-52
Causes
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC13-B2 on the main PCB goes low when the upper
paper length switch is turned on. If not, replace the upper paper
length switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the levels of YC12-3, YC12-4 and YC12-5 on the main
PCB change alternately when the width guide in the upper
drawer is moved. If not, replace the upper paper width switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC13-A19 on the main PCB goes low when the lower
paper length switch is turned on. If not, replace the lower paper
length switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the levels of YC12-9, YC12-10 and YC12-11 on the
main PCB change alternately when the width guide in the lower
drawer is moved. If not, replace the lower paper width switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC6-B11 on the main PCB goes low when the bypass
paper length switch is turned on. If not, replace the bypass pa-
per length switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the levels of YC6-A1, YC6-A2 and YC6-A3 on the main
PCB change alternately when the insert guide on the bypass
table is moved. If not, replace the bypass paper width switch.
Check procedures/corrective measures