Minolta 9000 Service Manual page 209

Servicing measures against "with motor drive (MD-90), continuous winding (2-3
frames) in single-fram2 advance mode"
Symptoms
2.3 frames advance in single-frame advance mode, when right side 'from photographer) of operating-
button is kept down 'Sw.2 ON) with camera held for photographing.
Depending on the way of pressing operating-button. more frames advance.
Cause
When the right side of operating-button is pressed, solder for Sw.2 sub-contact short-circuits to
GND contact irelease switch does not turn ON securely. The Sw.2 turns ON/OFF repeatedly
(chattering) by vibration of motor drive or finger. causing continuous winding.
NO contact
Servicing measures
Bind GND contact with acetate tape /9344-2391-30" cut off.
= \
"— Acetate tape 384.2391:30)
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