Ricoh FT2260 Service Manual page 208

1 August 1988
Check the exposure lamp continuity.
OK NG
Replace the exposure lamp.
Check the thermoswitch when it is cool.
Closed Open
Replace the thermoswitch.
Check the voltage at CN407-3 on the ac drive board.
Drops to 22.5V
Stays 24V
Replace the ac drive board.
Replace the main board.
<E13>
- Definition -
1. Lights if the CPU does not receive the zero cross signal within 0.56
second.
- Possible causes -
1. Main board defective
2. Zero cross line open
- Action -
Check the voltage at CN111-2 on the main board.
26V 0V
Check the zero cross line from the dc power supply board.
Replace the main board.
s
6-6