Kyocera KM-3035 Service Manual page 213

(2) No image appears
(entirely black).
Causes
1. No main charging.
A. Broken main charger wire.
B. Leaking main charger housing.
C. The connector terminals of the high-voltage
transformer PCB make poor contact.
D. Defective main PCB.
E. Defective high-voltage transformer PCB.
2. Exposure lamp fails to light.
A. The connector terminals of the exposure
lamp make poor contact.
B. Defective inverter PCB.
C. Defective scanner drive PCB.
D. Defective main PCB.
Causes
1. No main charging.
2. Exposure lamp fails to light.
Replace the main charger unit.
Clean the main charger wire, grid and shield.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if YC7-4 on the main PCB goes low when maintenance item
U100 is run. If not, replace the main PCB.
Check if main charging takes place when CN1-3 on the high-voltage
transformer PCB goes low while maintenance item U100 is run. If
not, replace the high-voltage transformer PCB.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if the exposure lamp lights when CN1-1 and 1-2 on the
inverter PCB go low while maintenance item U061 is run. If not,
replace the inverter PCB.
Check if the exposure lamp lights when YC1-3 on the scanner drive
PCB goes low while maintenance item U061 is run. If not, replace
the scanner drive PCB.
Check if YC37-3 on the main PCB goes low when maintenance item
U061 is run. If not, replace the main PCB.
Check procedures/corrective measures
2FD/2FF/2FG
1-5-39