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MALFUNCTION

PROBABLE CAUSE

REMEDY

Locked lens can be rotated slightly positioning incorrect brightline frames.

Worn slot in lens mounting flange

Replace lens mounting flange

Lens seats roughly or loosely in lens mounting flange.

Worn or damaged flange ring (23) fig. 39

Worn or damaged spring ring (25) fig. 39

Replace flange ring Replace spring ring

Light leaks on film.

Loose or missing eyelets (43) fig. 39

Hole in shutter curtains

Deformed shutter curtains

Damaged or missing light shields.

Defective or misadjusted shutter brake

Defective guide spring (14) fig. 30

Replace eyelet

Replace defective curtain Replace curtains Replace light shields.

Replace or adjust shutter brake.

Replace guide spring

Shutter does not completely traverse film aperture when release knob is depressed.

Shutter curtain ribbons Fig. 1-2 loose

Light shield felt strips loose.

Loose stop disc retaining nut (29) fig. 35

Slow speed escapement hanging at shutter speeds below 1/50-second

Reglue ribbons

Reglue felt strips Adjust and tighten nut

Clean and repair slow speed escapement

Unequal spacing between frames.

Loose stop disc retaining nut (29) fig. 35

Loose sprocket wheel screw (34) fig. 35

Improper friction of rewind knob assembly fig. 31

Improper adjustment of compensating friction clutch fig. 1-2.

Adjust and tighten nut

Tighten screw.

Clean, lubricate and adjust rewind knob assembly

Readjust friction clutch

Baseplate lock has no positive stop.

Locking plate stops (5) fig. 22, bent

Angled stop fig. 22, bent or broken

Straighten stops

Straighten stop or replace baseplate.

Baseplate lock has insufficient friction.

Defective upper or lower spring washer (7) & (10) fig. 22

Replace spring washer



MALFUNCTION

PROBABLE CAUSE

REMEDY

Shutter speeds below 1/50-second too slow.

Foreign matter in slow speed escapement

Slow speed escapement dry

Remove foreign matter Clean and lubricate

Shutter speeds below 1, 50-second too fast.

Slow speed escapement anchor does not fully engage

Hair spring on gear (8) Tig. 32 defective

Spring tension of second shutter curtain too high

Readjust anchor

Replace slow speed mechanism

Reduce spring tension

Shutter speeds higher than 1/50- second too slow.

Foreign matter in shutter mechanism

Dry shutter mechanism bearings.

First Shutter curtain spring tension too high

Second shutter curtain spring tension too low

Clean and relubricate

Clean and lubricate bearings. Adjust tension

Adjust tension

Shutter speeds higher than 1/50-second too fast.

First shutter curtain spring tension too low

Second shutter curtain spring tension too high

Adjust tension Adjust tension

Uneven exposures

Foreign matter in shutter mechanism

Dry shutter mechanism bearings.

Shutter spring tensions not properly adjusted

Clean and relubricate

Clean and relubricate bearings

Adjust spring tensions of shutter curtains.

Flash bulb does not fire when shutter release is depressed.

Note: Shutter must be correctly adjusted before troubleshooting synchronization.

Damaged flash lamp socket

Flash lamp socket lead defective

Foreign matter between contacts or precontact switch (S1) fig. 4-13

Pitted or burned contacts of switch (S2) fig. 4-13.

Repair or replace socket Resolder or replace lead

Clean contacts

Replace synchro adjusting lever and clean contact switch of synchro adjusting arm.



MALFUNCTION j PROBABLE CAUSE

REMEDY

Flash unit fires when connecting cord is inserted in flash lamp socket.

Shorted flash lamp socket

Flash lamp socket lead grounded

Precontact switch upper spring (S1) fig. 4-13, grounded

Insulating cap (35) fig- 31 of arresting lever missing

Repair or replace socket Repair or replace lead

Remove ground. Replace insulation plates if required

Replace insulating cap

Flash bulb fires when winding shutter.

Shorted precontact switch

Remove short

Flash unit fires erratically.

Intermittent open in flash lamp socket

Intermittent open in flash lamp socket lead

Intermittent contact of precon-tact switch (S1) fig. 4-13. due to foreign matter

Dirty, pitted or burned contacts of switch (S2) fig. 4-13

Broken or disconnected ground wire (9) fig. 31

Repair or replace socket Resolder or replace lead Remove foreign matter

Clean switch contacts. Replace synchro adjusting lever if necessary.

Resolder or replace wire

Flash bulb fires too early or too late.

Incorrectly adjusted contact arm fig. 4-13

Readjust synchro adjusting arm.

Electronic flash does not fire when shutter release is depressed.

Damaged electronic flash socket

Foreign matter between contacts of precontact switch (3) fig. 4-15

Pitted or burned contacts of precontact switch (3) fig. 4-15.

Foreign matter between contacts of main contact switch (4) fig. 4-15

Pitted or burned contacts of main contact switch (4) fig. 4-15

Electronic flash socket lead defective

Repair or replace socket Clean contacts

Replace flat spring (20) fig. 35 with contact spring and contact spring (9) fig. 30

Remove foreign matter

Replace short contact spring (9) and long contact spring (3) fig. 30

Resolder or replace lead

Electronic flash fires when connecting cord is inserted in electronic flash socket and shutter is wound or released.

Shorted electronic flash socket.

Electronic flash socket lead (16) fig. 30 grounded .

Grounded long contact spring (3) fig. 30.

Repair or replace socket Repair or replace

Remove ground. Replace insulation plates (2) & (4) fig. 30 if required




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