Oki MICROLINE 80 Maintenance Manual page 70

68
~-------------------------------------------------------
;'Linter do,"s not operate at all when power is switched on.
YES
YES
Check back panel fuse.
Check fuse Fl on
circuit board.
Check +24 V.
Space pulse motor
drive is fat.<lty.
Check contact of
connector.
YES
Check crystal
oscillation.
> - - - - - i
Q2 (8048), Ql
(8155) faulty.
TR2 is faulty.
YES
Replace fuse.
Replace
circuit board.
Check contact
of CN4.
Replace
circuit board.
Replace
circuit board.
Carriage keeps running to right or left when power is switched on.
YES
YES
Replace home
sensor.
Replace
circuit board.