Olympus OM-4 Manuel de dépannage - Page 14

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C. External Observations:

Erratic bar graph readings.

"Spot-Auto" speeds erratic,

"Auto" and "Manual" speeds may be normal,

1. Capacitor C-108 (filter) may be open or not

soldered. It is near IC-103 but also connects across

pins 7 and 8, IC-102. Value is 0,015 MF.

2. Check if bar graph is stable in BC mode. If so,

check R-130, near IC-101.

3. Check for dirty wipers on AV-VR and SV-VR,

3. Release Malfunctions

A. External Observations:

Shutter will not release (or erratic) in "Auto"

or "Manual," although mirror is up.

Mechanical shutter function is normal

LCD is normal.

Supply voltage is above 2.65v.

OLYMPUS OM-4, PAGE 14