Pentax MZ-5 User manual

PENTAX ®
Service Manual
ENGLISH
PENTAX AtZ·S~~~rz
..
PRODUCT No.27250
M z-5 OUARTZ DATE
(Silver)
PRODUCT No.27251
M z-5 QUARTZ DATE
(BI ack)
PRODUCT No.27254
Z X-5
(Si Iver)
PRODUCT No.27255
Z X - 5 QUARTZ DATE
(Silver)
PRODUCT No.27256
M Z-5
(Si Iver)

.,,
[ TABLE OF CONTENTS )
Page
Specifications · · · · · · · · · · · · • · · · · · · · 2
LCD & Finder indications • • • • · · · · · · · · · · · 2
Disassembly
and Assembly procedure
L I External parts I · · · · · · · · · · · • ·
I L_ Adjustment and confirmation
I 8- 1. Function check {p.13)
3
I
I
I
I
8-2. Adjustment and check with computer program (p.14)
8-3. Exposure value and DX switching confirmation {p.15)
8-4. AF and PZ confirmation (p.16)
r-- 7.1 Top cover I . . . . . . . . . . . .
I
2. l Soldering of Main unit I·
I
12
4
3.l Main unit and Front housing block I· · · · · · · 5
I
r-- 6. I Main unit I · · · · · · · · · · · 10
I
4.1 Main P.C.board I · · · · · · · · · · · · · 6
I
5. I Front housing block . . . . . • . . . 7
L- 8- 6. Mirror function check (p.17)
8- 7. 1st and 2nd mirror position (p.17)
Adjustment and Confirmation
8- 1. Function check · · · · · · · · · · · · · • · 13
8-2. Adjustment and check with computer program 14
(Auto exposure and Auto focus)
8- 3. Photo sensor position · • · · • ·
8-
4. Exposure value and DX switching con.firmation
8- 5. Auto focus and Power zoom confirmation
15
16
16
8- 6. Mirror function check · · • . . .
17
8- 7. 1st and 2nd mirror position
. • . • 17
Others
Mechanical back · · • · · · · · · · · · · • · 5
AF joint stroke · · · • • • 9
Viewfinder focus and Parallax 9
Program software
flow chart
Table
of testers, jigs and tools
Order list of testers, jigs and tools ·
18
22
23
Method of making DC power adapter (handmade jig) · • · · • 24
27250
l/24

Type:
Format:
Usable Film:
Exposure Mode:
Shutter:
Lens Mount :
Competible Lens:
Autofocus System: ·
Power Zoom:
Viewfinder:
Viewfinder Indication:
Extomal LCD panal
lndlcetion:
Self·timer:
Mirror:
Fiim Loading:
Film Wind & Rewind:
Exposure
Meter:
[ SPECIFICATIONS ]
TTL autofocus. auto-exposure 35mm SLR with built· in TTL auto n .. h (RTF)
24x36mm (Approx.
13x36 in panoramic format)
35mm parforated cartridge
film. DX·codtd film with ISO 25-5000; non-DX coded films with ISO 6· 6400
Programmed AE Mode. Shutter-Priority AE Mode. Aperture-Priority AE Mode. Metered Manuel Mode. Bulb
Mode
Electronically controlled vertical-run focal·plane shutter. Electromagnetic release. Speed range:( 1)Auto
1
/2000-30 soc.(stepless).(2)Manual I /2000·2 nc.(3)Bulb. Shutter lock by setting Drive mode switch
et L
Pentu K..1 bayonet mount(K-mount with AF coupler. lens infonNtion contacts and power
cont1cts)
Ptntu K...r. l(., •• K ••• and K-mount lenses art usable. Autofocus is pos.sible using AF Adapter with K·K.-
mount len11s.
TTL pha11·m11ching 3 point autofocus system switchable to Spot focusing, AF operational brightness
range: EV·l
to lB(at ISO 100 with f /1. 4 lens). Focus lock av1ilable using shutter release button. Focus
Mode: AF(predictive
AF provided), M1nu1l( MF]
3·Speed Intelligent Power Zoom lens with bullt·in motor with FA zo om lens
Ptntaprism finder. Natural-Bright-Matte focusing scr11n. F',.ld of viow
!929'. Magnification:O.BOX(with
50mm lens
at co), Diopter: ·2.5 to +1.5 diopters. Panorama format frame
Focus lnformation:ln-focus (Green lamp (OJ
Is lit). front or back focus signals and unable·to-focus indica·
tor (Green lamp blinks), Shutter speed indication, Aperture indie1tion, Flash reedy Indication (
~ ) Is lit. Bar
graph(uposure compensation).Over or Under uposure indication in Manual Exposure Mode. ( gi ) expo·
sure compensetion indication
(
P) •Progremmed·AE Mode. [ Tv] •Shutter-Priority AE Mode. (Av) ~Aperture·Priority AE Mode. [ M J
•Metered Menual Mode. (bu] •Bulb-Mode, Film speed• 6. 6400. ISO indication. ( <:l--l •Film status
inform1tion, ( Cll ) s B1ttery exhaustion warning, Fam counter~0-99 ( ~ ):Built - in fl.sh ready indication
(
~ ) •blinking slowly flash recommendad w1ming ( ~ ) • bf"inks rapidly Inappropriate lens warning, ( <I> )
a Red ., tye reduction flash mode [ El )•Au1om1ie flash function, [ ... J~PCV signal indicotion
ElectronieaUy.controlled type with delay time of 12 sec. St1rt by depressing of shutter ra
laast button.
Opetation confirmation:
By audible PCV signals. Cancelable 1fter operation
Instant-return mirror with
AF secondary mirror
Film advances automaticahy to 1st frame after beck cover is closed. Film information window is provided
Auto
wind/ rewind by built·in motor. Consecutive or Single advance mode. Approx.2.0
framu/sec.(consocutivo mode), Auto rewinding starts at end of roll. Film rewind/completion of rewind·
ing is displayed on the LCD panel. mid·roll rewind button will rewind film in mid·rolt
TTL multi(6)-segmont metering. Metering range from EVO to EV2 1 at 150100 with SOmm f/1.4 lens.
Canter-weighted and Spot metering mode can ba
Ht
Exposure Compensation : +/· 3EV in 0.5EV step increments
Flash : Sorias-control. Retr1ctable
TTL Auto Flash (RTF). Guide numb.:11 (IS0100/m). lnumlnation 1ngle cov·
ors
28'MI lens angle of mw, Flash-sync-speed in the range from 1/100 to a slower speed. Day.light-sync
flash. Slow·speed·sync flash. Contrast·control·synch flash (ISO range•
25-400 ). Automatic fluh function.
Rod·eyo reduction flash
Flash •ync:
Power Source:
Hot shoe with X-contact with coupled with Pentex dedicated 1uto flashes.
ISO range• 25 - BOO
Two 3V lithium battery (CR2 or equivalent)
Battery Exhaustion Battery exhaustion symbol ( Cll ] is lit (blinking when tho shutter is locked; no indication on the right·hand
Werning: edge of the viewfinder.)
Dimenslo.n
and Weight: 135.0mm(W)x90.0mm(H)x61.5mm(D) (S.3"x3.S-x2.4") 400g(14.1 oz) body only without batteries
Supplied Accessories: Hot Shoa Cover
Fe. Release Sockot Cap F. Camara Strap F .. Eye Cup f., Finder Cap
Bock
cover:
In terchangeable for replacing with Data Back Fe
[ LCD AND FINDER INDICATIONS J
• Finder indications
• LCD panel indications
int AF frame
Finder LCD

,
1. External parts
1- 1. Back cover and Bottom cover assy.
A201 (Back cover)
7 screws
Open the battery cover
... - ....
,, .......
·-
A401 (Bottom cover) O - A4l~---~
O-A412 (Battery cover assy.)
1-2 . Top cover assy.
• 8 screws
A1 88
• Lift the top coverfrom the body, and then discharge
electricity
of the main capacitor with a 100- lk ohm
resistor. .. · fig. <D
TY-CNL·Dl.7X6.5
Unsolde.ring
(0- Q201 + QlOO) 4 lead wires ... fig. ®
(0-TlOO + T51) 6 lands ..· fig. @
(A330 ) 1 black lead wire .. · fig. @
0- A301 (fop cover assy.)
Xe+ (blue)
Retainer screw (GND)
[ Note
of assembly ]
_a/
/"TY -CNL-01 .7X6.S(NI) ,
\(inside the batt chamber) A 184
Brown . (QlOO)
• [ AdYConfirmation ] Photo sensor position (p.15)
Clean
every connecting lands (0-TlOO, O-A301) before installing.
6 lands
Arrange
the lead wires and 1lex ible boards as shown in the diagram right.r.=== == ::;'tii)~1f}'}4
• Arrange T51 and the black lead wire from A330 on the slope of 1..3.
Arrange the 4 lead wires (QlOO) between 0- Q201 and 0-TlOO.
Make sure that
the contact brushes (fv, Av) are not damaged,
and make
sure that the height of the brushes should be 4.3 mm.
1-3. Front covers
• 5 screws
A185
Al53 (Body covering, left)
A7 (Rewind
SW) AIBB
• O- Al02 (Front cover assy.)
•
Al03 (Cover frame)
Al50 (Grip)
[ Note
of assembly ] l
"f! -CNL-01.7X4.5
· Set both Body and 0-A102 with the AF-po sition. '(discontinued)
· A35
(Batt contact piece) and A36 (Batt cover SW ...) should not project
over
the battery chamber as shown in the diagram right
[ Adj/Confirmation ] Function check (p.13)- Adjustment with computer program (p.14)-
O.Smm <
-Exposure value and DX switching confirmation (p.16)- AF·PZ check (p . 16)

2. Main unit and soldering
[ Note of Disassembly and Assembly ]
• Turn the Panorama lever to normal frame.
2-1. Unsolder the lead wires and lands as
shown
in the fig.( CD ,® ,@ ,@ )
• Remove the flexible boards from the
positionning studs.
[ Note
of assembly ]
•
Set the LCD frame plate underneath
the
LCD to the positionning hole of
the Front housing.
Arrange lead wires. •·· fig. (D
Put on PT(lx7) and PT(l0x8). ... fig.@
2-2.
2 screws .. • fig. @
0- M301 (Eyepiece assy.), M311 ®
2-3. A307 (Spot AF switch)
A34,(Cusion) x2 ..• fig. <J)
4124
TY-CNL-Gl.7x3.0
TY-CNL-DL7x3.5(Ni)
TY-CNL-Dl.7x4.0
(N300)
A33
27250
TY ·CNMl.7X4. 5.
O-M301+M311
7 lands
(DX)

-
3. Main unit and Front housing blo ck
3- 1. Remove 6 screws.
Al62
(Reinforced plate)
Peel off two PT(lxl5)s on the bott om.
3- 2. Re mov e the Front housing from the main
unit with paying attention of the flexible boards.
[ Note of assembly ]
• Arrange the le
ad wires and T81 as shown
in the diagrams right and below.
• Set both Shutter block and the viewfinder
with the
nonnal frame.
· Set both Shutter bl ock and Front housing
at the charge condition.
· Make sure that the gap "a" should be as shown below.
• Tighten scre ws in numerical order
( <D ,® ,@ ,@ ) as shown in diagram s.
[
Adj/Confirmation ] Mechanical back
Sta ndard: 45 . 46 + 0.02 mm
Al
a<0 . 2mm . ': ' /
Front hous ing block
TY-CNL·E2.0x 3.0
©
I TY-CNM-2.0 X6.S
TY -C NM ·2.0X7.S y CD i

4. Main P. c. board (0-TlOO)
4-1. Unsolder lead wires and lands.
..• fig. @ ' ® ' cr> '©
4-2. Photo sensor part ... fig.@
Release socket part .. • fig. ®
Finder LCD part .. • fig. CD
6124
(0-J201)
Black-
Yellow__.-.
13 lands
(0-MlOl)
[ Note of assembly ]
Install 0-TlOO in numerical order
of diagrams.
• Install the Finder
LCD as shown in the fig. <D .
6 1
3
TY-CNL-Fl.7x3.5
~
~
27250
(S300)
T'r'-C.Nl-F
l.?ic2.5

5 . F r on t h o u s i n g b 1 o c k [disassembly and assembly)
( Disassembly procedure J
1.2, L3 (Fresnel lens, Pentaplism)
S300 (AF motor block)
0- MlOl
(CCD block)
0- J201 (TTL flash photo sensor assy.)
GlOO (Diapluc1gm control block)
0- M41 (Finder mask assy.)
0- B52 (Mi nor seat assy.)
Al04 (Mount 1ing)
Front housing assy. and related patts
Assembly procedure ]
5-1. Front housing assy. and re lated patts
· 0-Al21 Goint lever assy.)
Wll (0.03 /adj.), Al23 (...lever retainer screw)
B41 (Light seal plate, bottom)
B65 (Mirrnr shock absorber)
KlOl (f-volume), Al61 (Insulation spacer)
MS, M7 (Condenser lens)
5- 2. Al04 (Mount ring)
-1. Al43 (Exte1ior tube)
· Al45 x5, Al47, Al48 (Connector pin)
• Al46 x7 (Connector pn sp1ing)
-
2. 0- Al26 Ooint lever plate assy.)
T301 (Mount P.C.board), 0A(3x4)
· Install Al43
Ol\ O-Al26 with a screw.
·
0-Al28, Al27, 1 screw
-3. 0- Kl02 (Diaphragm coupler 1ing assy.)
· Al35 x2 (Restitution spring)
-
4. Al04 (Mount ting)
Al05 (Mount spiing)
All8 (Mount washer)
AHO (...guide plate spiing)
0-Al08 (...guide plate assy.), All5
Al04, All9 (...retainer screw), 4 screws
5-3. 0- 852 (Min-or seat assy.)
-
1. Install the 2nd min'Or shaft of 0- B52 fast,
and then install 0- B52.
- 2. Install B66 in to the housing and 0- B52 with
equalizing both sides of866.
-3 . Apply a bond at the middle of B66 to fix 0- B52.
- 4. B58 x2 (Mirror seat receptacle)
859 (...retainer plate), B60 (Plate retainer)
863,
857 (...actuating lever, ...lever shaft)
862 (2nd muTOr actuating sp1ing), apply a bond
as shown in the
diagram 1ight.
27250
lY•CH\.·t• . 4• l)
CC..•l>IUtl
M~ ,\
~M7
l't· c..s t, l . ) , $
•C.IO IU) tJ
KIOI /\
A 161 1..,Jl' \
~~
Fig.5- 2- 3, - 4
7/24

5- 4. 0- M41 (Finder mask assy.)
-1. Set to the normal frame by moving the lever of O-M41. M
50
M \
49
-2. When installing O-M41 with a screw, make sure that \ •
the tips
of panorama shutters should be positioned ~ ~
lY •CNM t.11 ). , ~ ...... !
between the housing and the frame of 0- M41. re . '°'um '-.... !l ·
- 3. M49, MSO (Find" soloot <OUp!&, ···'°""'" •pring) 0 • M 41 ~
M49--® ~ ~-MSO
5-5. GlOO (Diaphragm control b lock)
- 1. Apply Gl26 to 10 shafts of th e housing. Bl
1
- 2. Hold the shaft part of mirror seat assy.
between BU (Mirror drive lever)
and 820 r.10
( ... restitution spring). 819 (Mirror drive spring)
-3. BIO (Shutter charge lever), B9
B9, Bl7 (Diaphragm set lever, .. .lever spring),
Bl8 (Lever restitution spring)
-
4. Moving B9 ( ... set lever) down, install 87
(Shutter charge cam).
- 5. Aligning both positioning hol es with 87 and
0- BS (... drive cam assy.), install 0- B8. ··· (a)
- 6. B4, 83 ( .. .reduction gear B, A)
- 7. B5 ( ... reduction gear C), apply Lll5 to the whol e of 85.
-
8. B6 (Mirror idle gear)
-
9. Clean the contact lands ofT71 using
with contact cleaner.
-IO.Pushing
down the sliding plate (b),
push in latch lever (c) to hold the sliding plate.
- 11.GlOO · O-S250 (Mirror motor assy.), 4 screws
-12.Solder one
black lead wire (Al05-T71).
-13.When installing 2 lead wires
on O-S250,
solder them as shown
in the diagram.
Red (85 mm)
5- 6 { Confirmation ] Mirrorfunction check (p.17)
5-7 ( Adj/Confirmation ] 1st and 2nd mirror position (p.17)
5- 8. O-J201 (ITL flash photo sensor assy.)
0- J201, 2 screws
8/24
Make sure that the terminals of 0- J201 should
not stand
out
27250
819
81?
B'f
(Gtul\) <~yl
T'f-CNL·l>1.7x3.S
Black (75 mm) 'TY-CNl-l>r.7x3.S
O - J20t-~
TY·CNM 1 . 713 . 5~& I
fC . 60923511 ------~
5-5-12
Black (Al05)

5- 9. 0- MlOl (CCD block)
( Required equipment ) Hexagonal driver 1.5 mm
Amrnging the flexible board ofO -MlOl, instal l 0-MlOl.
M104 x3 (CCD block spring), W65 (t=0.5) x3
Ml03 x3 (CCD block adjusting screw)
[ Adjustment ] CCD block temporary pos iti on
Screw in each Ml03 until it stops, then screw back 1 or 1 .5 tums.
* App ly super-glue to between the head ofM103 and W65
after adjusting the pos iti on by using a computer.
5- 10. S300 (AF motor block)
- 1. Install surely the power- zoom pins of S300 to the housing,
and anange the lead wires and flexible board as shown in
the diagram tight.
-
2. S300, 2 screws (apply the screw- lock agent)
( AdyConfirmation ) AF joint stroke
[ Required equipment ] Vemier ca lipers
1. Set the focus mode switch to "AF".
Red
(80 mm)
2. [ Confirmation ] When the mount l ock bu tton is not pressed, the AF coupler of AF motor (S300)
should project from the mount surface by 1.3 mm or more.
3. ( Confirmation ] When the mount locJc button is pressed and released the mount lock pin comes to
mount surlace, the AF coupler sho uld not project out of mount s urface.
[ Adjustment ] Turn an eccentric screw on O- A121 Qoint lever assy.), and apply the screw- lock
agent to the screw after adjusting.
4. Confinnation ] When the mount lock button is pressed and released, the Joint lever (0-Al21)
"\ ~'"'
5-11. L2, L3 (Fresnel lens, Pentaprism) l~\.
should be moved smoothly.
- 1. L3, M8 x2, BT(24x30) Me
2 S M 6 ( . Ml~7 • / '- --
- . crew two 1 s ... retamerscrew) equa ll y. , -.....
-3. M17 (Dust prevention seal)
-4. Insta ll M21 ( ... retainer plate h olde r) as sho wn in the diagram . Mrs
L3 \
- 5. Hook M4 (Fresnel lens retainer plate) int o M21,
and then put L2 on M4.
- 6. M22- OOA - H (Focus adjusting washer)
[ Adj/Confirmatio n ) Viewfi nder focus and Parallax
[ Required equipment ) Collimato r, Focus master lens
· Install the eyepiece (0-M301) temporaril
y.
[ Adjustment ] Adjust viewfinder focus by replacing Focus
adjusting washer
A- H (M22 - 00A to H) .
Standard: 0 + 0.07 mm
( Adjustment ] Adjust parallax (right/left) by turning two retainer
screws (Ml6), and apply the screw- lock agent to Ml6 after adjusting.
Standard: Right/Left 1° or less
Top/Bottom 1• 50 ' or less
27250
'
Q/?4