Ricoh FT7060 Field Service Manual page 251

SERVICE CALL CONDITIONS
The exposure lamps light while in a waiting or an idling
°
condition.
The circuit of the exposure lamps opens.
°
Turn the main switch off and on.
Do the exposure lamps light?
Y N
I
Does SC 1 remain off?
Y N
°
°
circuit is not open.
Press the print key.
Do the exposure lamps light?
Does
from
Y
Replace the lamp regulator.
Replace the exposure lamp if when the exposure
lamp circuit is open.
Replace the lamp regulator if the exposure lamp
the lamp regulator trigger voltage (CN228-2) go
HIGH (+20 volts) to LOW?
N
Does the output voltage on main board (CN208-A3)
go from HIGH (20 volts) to LOW?
Y N
Replace the main board.
Check and correct the harness and/or connector.
8-39
12 July '86