Led Test - Oki OF5900 Maintenance Manual

7.11

LED Test

Start
Perform LED TEST. (See 6.7)
All LEDs light?
Yes
End
OKIFAX 5700/5900
No
Any LED does not light?
Yes (One LED or
some LEDs light.)
ALARM LED lights?
Yes
DARK LED lights?
Yes
NORMAL LED lights?
Yes
LIGHT LED lights?
Yes
STD LED lights?
Yes
FINE LED lights?
Yes
EX. FINE LED lights?
Yes
PHOTO LED lights?
Yes
7 - 14
Checking Points:
No (No LED lights)
1. Check the connection cable.
2. Check the oscillator OSC (OPE).
3. Replace MCNT (R76) board.
4. If not solved, replace CPU of
OPE unit.
No
No
No
No
No
No
No
No
Check the corresponding
LED(s) on OPE board.