Measure the time of exposure at 1/1000 sec, and check whether the exposure is consistent. Also find out
if there is any even-lessness if viewed from the rear.
Then measure the time of exposure at 1/15 sec.
The best way of checking the shutter bounce is to carefully watch from the back side of the picture
format, releasing the shutter at 1/60 sec. by holding and directing the camera toward a bright
background, say, white walls or the sky.
Check the exposure time at 1 sec. Also find out if there is any irregularity in the sound of the governor.
Also check the "B" and "T" setting performance.
l. SYNC. CONTACT
With the speed dial set at "B" or " T," release the shutter to check the FP and X flash contact
conductance, using a circuit tester usually available on the market.
m. MEASUREMENT OF MECHANICAL BACK
Place the camera body on the test board and measure the dimension of the mechanical back, with
particular attention not to scratch the film guide rails, etc.
n. VIEW FINDER FOCUS
With a collimator, or by using a thin distant subject 200 meters or more away as a target, check the
infinity focus of the camera. Find out if there are any dirts, dusts, piles or stains within the visional range
of the finder.
Clearly visible dirts are usually found on the ground glass.
230-2
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Summary of Contents for PENTAX S3
Page 1: ...PRODUCT NO 230 2 ASAHI PENTAX S3 SERVICE MANUAL 230 2 1...
Page 37: ...EXPLODED ILLUSTRATIONS Fig 1 230 2 37...
Page 38: ...Fig 2 230 2 38...
Page 39: ...Fig 3 230 2 39...
Page 40: ...Fig 4 230 2 40...
Page 41: ...Fig 5 230 2 41...
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