Vivitar 283 Service Manual page 36

Automatic Electronic Flash
Model 283
8. TROUBLE:
Sufficient light indicator (green light) stays on or blinks - automatic circuit working.
ACTION
INDICATION REMARKS
Check D9 for leakage
Leaks Replace it
9. TROUBLE:
Calculator dial light not working.
ACTION
INDICATION REMARKS
Check for voltage at bulb DS2
YES Replace bulb
NO Check wi ring to bulb,
dial light switch, and
R 11 ; replace or
repair
as necessary
10. TROUBLE :
No flash via shoe- sensor plugged in-PC cord not connected- unit can be flashed with
open flash button
ACTION
INDICATION REMARKS
A . Check jumper across pins A and 8 in sensor GOOD Go to step B
FAULTY Repair
8. Check wires from sensor receptacle to PC
GOOD Go to step C
board 8
DEFECTIVE Repair or replace
c.
Check contact of spring on PC-AC input
GOOD Check shoe and con-
board (39)
necting wiring; repair as
necessary
No contact Repair
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Vlvlter 37460598 (11/80)
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