Pentax MZ-S Service Manual

27640 -9/34-
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11
1-
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-1
11
11.[Check] Shutter speeds, X
1.[Check] Shutter speeds, X1.[Check] Shutter speeds, X
1.[Check] Shutter speeds, X-
--
-Time lug.
Time lug.Time lug.
Time lug.
[Jigs, Tools, Testers]
[Jigs, Tools, Testers][Jigs, Tools, Testers]
[Jigs, Tools, Testers] Shutter tester (1/6000sec. Measurable), AE master lens(ML-245).
1） Check manual shutter speeds.
[Note]
[Note][Note]
[Note] When measuring exposures not at the center of the aperture(1
st
and 2
nd
) , please
use Shutter testers with master lens mounted and the light is slanted light or pin-point type.
[Standard]
[Standard][Standard]
[Standard] Tolerated range of manual shutter speed.(Center of Aperture)
S.Speed(sec.) Exposure time(ms) Exposure value(EV)
1/6000
0.112～0.283 ±0.7
1/4000
0.172～0.345 ±0.5（～1/3000sec.）
1/2000
0.370～0.644 ±0.4（～30sec.）
2）Set 1/180 sec. and check X time lug.
Parallel light(24mm running time)
Ref. Value(Spot beam、21mmRunning time)
1
st
･･･ Over－0.05 ms 1
st
･･･ Over 0.25 ms
2
nd
･･･ Over 0.8 ms 2
nd
･･･ Over 1.35 ms
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1-
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-12.[Check] Exposure value
12.[Check] Exposure value12.[Check] Exposure value
12.[Check] Exposure value・
・・
・DX correspondence.
DX correspondence.DX correspondence.
DX correspondence.
1）Set camera at Programmed auto mode and measure the exposure values.
[Preparation]
[Preparation][Preparation]
[Preparation] Shutter tester, Master lens for AE.(ML-245)
[Standard]
[Standard][Standard]
[Standard] Exposure Value(Master lens for AE、Aperture A position)
Brightness(LV) Tolerated range(EV)
LV6～14 ＋0.70～－0.50
LV15
＋0.95～－0.25
LV16
＋1.20～±0.00
☆ Check other exposure mode if necessary.
2）Check DX correspondent.
[Preparation]
[Preparation][Preparation]
[Preparation] DX correspondent film（ISO400, 200, 100, and others.）
Load film and make sure that the LCD indication is matching with ISO of the film inside.
(Supplement：It can be checked with ISO 5000 film.(All contact pieces are closed.)
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11
1-
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-13.[Check] Checking Data imprinting.
13.[Check] Checking Data imprinting. 13.[Check] Checking Data imprinting.
13.[Check] Checking Data imprinting.
[Testers]
[Testers][Testers]
[Testers] Regulated power supply.
1-13-1. Checking Data imprinting LED.(Back cover)
[Note]
[Note][Note]
[Note] Be sure not scratch on contact piece.
1） Apply 4.5V to the terminal⑨(+) and ⑧()
as shown in Fig.
2） Check 1 LED turns on by making contact terminals ① and ⑧().
3） Check LED by shorting between ②～⑦ accordingly.
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11
1-
--
-13
1313
13-
--
-2. Checking Data imprinting.(Main body)
2. Checking Data imprinting.(Main body)2. Checking Data imprinting.(Main body)
2. Checking Data imprinting.(Main body)
[Preparation]
[Preparation][Preparation]
[Preparation] Logic tester・Analogue(Needle indication)Circuit tester.
[Note]
[Note][Note]
[Note] Be sure not scratch on contact land.
1）Same as the indication in viewfinder, connect resister(1k-2.5k) temporary for checking.
2） Turn Main SW ON (All LED should turn ON) and check followings.
3） DC 5V should exist between land ⑧ and ⑨(+).
Check to see if 2～4V output exist when shorting between
the land ⑨(+) and ①～⑦.
1k－2.5k

Pentax MZ-S Specifications

General

Brand	Pentax
Model	MZ-S
Category	Digital Camera
Language	English