Kyocera KM-4230 Service Manual page 449

2A3/4
(1) No image appears
(entirely white).
Causes
1. No transfer charging.
A. Broken transfer charger wire.
B. The connector terminals of the
high-voltage transformer PCB
make poor contact.
C. Defective main PCB.
D. Defective engine PCB.
E. Defective high-voltage
transformer PCB.
3-6-4
Causes
1. No transfer charging.
Check procedures/corrective measures
Replace the wire.
Reinsert the connector. Also check for
continuity within the connector cable. If none,
remedy or replace the cable.
Check if CN1-84 on the main PCB goes low
when maintenance item U101 is run. If not,
replace the main PCB.
Check if CN5-B7 on the engine PCB goes
low when CN1-84 on the main PCB is held
low while maintenance item U101 is run. If
not, replace the engine PCB.
Check if transfer charging takes place when
CN1-7 on the high-voltage transformer PCB
goes low while maintenance item U101 is
run. If not, replace the high-voltage
transformer PCB.