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C. Elimination of certain faults.
1. Shutter flap 750-401.00 falls back.
a) Remove the top-plate 750-001.00. As under disassembly of camera A.2.
b) Bend apart the adjustment slot in the mirror lifting lever 350.04 U 7, until the lift stroke
suffices and the shutter flap passes the mirror holding lever 750-400.05 by about 0.5mm.
Should the lift stroke not be sufficient in spite of this adjustment, then check and if necessary
replace the Schaltsegment 750-709.00 [the assembly the wind lever fixes to?] and
Aufzugsgetreibe 750-704.00 [the lift linkage].
c) Replace the top-plate. See under Disassembly of Camera A.2 but in reverse order. Check
functioning.
2. Shutter does not engage (Shutter flap 750-401.00 runs closed) [ie. second part of shutter
does not catch and runs with mirror?].
Disassemble camera, as described under Disassembly of Camera A.1 - A.3. For repair method,
see Repair Manual for EXA/EXA I C.2.
3. Mirror 300.21-53 replacement.
See Repair Manual for EXA/EXA I C.3.
4. Frame counter failure.
See Repair Manual for EXA IIa C.6.
5. Synchronisation failure.
See Repair Manual for EXA/EXA I C.5. - Adjusting the flash synchronisation EXA I/63.
6. Checking the film transport.
See Repair Manual for EXA/EXA I C.6.
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