Yashica FX-DQUARTZ - LED, Beep, and Warning Indicator Problems

2-2) "B" LED indication appears at LV15.
Check:
(1) Incorrect Off-Set voltage against high light. (re-
adjust).
(2) F.P.C.
(3) Amplifier.
3) Shutter speed LED does not light properly at manual mode.
3-1) Check: (1)
(2)
(3)
(4)
(5)
Shutter dial contact.
Shutter base plate.
Dirty shutter base plate.
F.P.C.
Amplifier.
4) Wrong indication of shutter speed LEDs. (More than three shutter speed LEDs come
on simultaneously,
or No LED comes on).
4-1) lncase of "Over"-"B" indication.
Check:
(1)
(2)
(3)
Shutter speed LED.
F.P.C.
Amplifier.
4-2) In case of N (flash) mode.
Check:
(1) Shutter speed LED.
(2) Bad contact of accessory shoe.
(3)
TR-9, R22, R23.
(4) F.P.C.
(5)
Amplifier.
5) No beep at all. (self-timer or over-exposed situation.)
5-1) Beep at "OVER" indication, but not working when self-timer is used.
Check:
(1)
(2)
(3)
TR-3.
R14, R15.
F.P.C.
5-2) No beep at "OVER" indication, but it is working when self-timer is used.
Check: ( 1 )
D2.
(2) F.P.C.
5-3) No beep or very small beep, when "OVER" LED indication or self-timer is used, but self-timer
and
"OVER" indication itself are normal.
Check:
(1)
TR-4.
R16, R17.
Shoe spring
of amp I ifier.
(2)
(3)
(4)
(5)
P.C.V. (Piezo Ceramic Vibrator.)
F.P.C.
5-4) Tone of P.C.V. is not normal.
Check:
(1) F.P.C.
(2)
Amplifier.
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