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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
Summary of Contents for OM-4
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