Minolta X-300, X-370 Service Manual

X-300 [ 2 025 - 100 ]
X- 3 70 [202 5- 3 00]

.....

For U.S.A. & Canada

TYP E O F CAMERA

Ele c trically controlled 35 mm focal plane shutter
SLR AE camera
Photography system : Aperture priority A E and

Standard lens I MD60mm F L2. MDSOnua F 1.4,

Lana mount ' M inolta S L R bayonet mount
Film used : J13S rolled film
Size of image field 24mmX36ma

SHUTTER

Ele c tric ally controlled focal plane shutter

(T ravelin g holizontally)

Shutter speed : Auto---4 sec. to 1/1000 sec.

Shutter speed dial
Shutter release

Self timer

EXPOSURE CONTROL·

Light metering system T T L center-weighted

Detector element I 1 S ilicon photocell a
Auto exposure interlock range

Film speed scale : ASA/tSO 12-32 00 (locked every

AE lock

Metering switeh

VIEW FINGER

Type SLR pentaprism type
Focusing screen : Center*··Split-image and micro-

Viewfinder showing : 95% of 24mmx36mm film-

Magnification I 0 .9* (using 50 mm lens at no set

Dioptric power — 1 diop.
Finder indication 1

manual pbotofraphy

MD50mm F 1.7. MCS Omm F2

Manual- 1. 1/2. 1/4. 1/8. 1/15.

1/30. 1/60. 1/12S. 1/250.
1/ 500. 1/1000 see. and 3
(bulb).

Click stop endless dial

: Electromagnetic release, remote

cord, wireless controller 1R-1
can b« mounted.
Shatter release locks in ease of
battery voltage drop.
With main switch at ON.

Electron ic self-tim er starts by
depressing the operating button.
Operation is indicated by camera-

front LED blink.

Shutter release notice is given.

Self-timer operation can be

canceled anytime before release.

average metering.

: EV 1 -18 (ASA /IS O 100 i/1.4 lens)

1/3 step)
Only for A mode.
Operation by pushing self-tim er

lever down.

By touch switch or depressing
of operating button slightly.
Memorizing of metering and

finder LED indication for 15

see. after the sw itch O FF.

prism

Periphery··Acute Matte

frsme area

ting)

; Mode indication in use (A . M)
; Shutter speed scale with LED

indication

t Slow shutter speed indication for

1-4 see (<7)

I Over-/under- range LED indication

blinking at 4 Hz ΙΔ /^ )

B-setting indicator ( a )

IY IIN 0 U A

Setting shutter speed in dicator
(Shutter speed L ED blinking at
4 Hz)
Flash-ready signal (LED next to
*60’' blinking at 2 Hz)

Battery cheek (by mode indication:
Indicator ON when batteries are
serviceable: blinking when near
exhaustion: no LED s light when
exhausted)

M irror

FLASH SYNC

Syne speed

Hot shoe

Slide-uo quick return

X contact, electroflash is synch
ronized at speeds slower than 1/60
sec; flash bulb is at speeds slower
than 1/15 see.
Direct contact, sync auto control
contact

RUM WINDING. REW INOING

Film winding By lever. Winding at an angle of

Film counter Auto resetting calculation. With

Film rewinding I By rewind button and crank

BACK COVER

Opening/Closing by pulling up knob, snapping back
the cover.

With grip, me mo holder (IS O . DIN. A SA table)

130* (preliminary angle: 30*)
Auto winding by Motor D rive 1 or
Auto Winder

t W ith Safe Load Signal

Safe Load Signal

system: auto reset of rewind
button.

POWER

Two I. 5 V alkal ine-manganese ( LR44: Eveready A-76
or equiv.) or two 1.55 V silver-oxide ( SR44: Eveready
G-13 or equiv.)

OTHERS

Battery holder and Eyepiece cap

SIZE A N O W EIGHT

51. 5 x 90x 137 mm (2x3-9/19x5-3/8 in.)
470 g (16-9/16 oz.) without power cells

ACCESSORIES

Flash

Winder
Remote control

Others

: Auto Electroflash 320X. 200X. 132X.

118X

; Motor Drive 1. Auto W inder G

; W ireless Controller IR - l set

Remote Cord S / L
Interchangeable Minolta lenses
and applicable Minolta S L R system
accessories.

Comparision table between 2 0 2 4 an d 2 0 2 5

I . Appearance

Item

• Top cover

• Mode/shutter speed
selector

• Film -advance lever

Back g rip

Bottom cover

Bavonet lens mount

Main switch

2 0 2 4

Yes

SU S

Same shape

2 0 2 5

No

B S

(Cr. plating)

(o nly d ifferences ire described)

Not·

• For 202S. only s ilv e r model is
availab le.

• Disco ntinuity of Auto lock
mech. of mode/shutter speed
selecto r.

Marking: JA P A N or M A R A Y SIA

• ON-O FF changeover

• No audible p iezoelectric

warning mark

I . Function

Item 2 0 2 4

Direct autoflash

metering

Sync terminal

Preview button Yes

Audible p iezoelectric

warning

F-number indication
in viewfind er

Connection with Multi-
Function Back

Yes

Yes

Yes

Yes

Yes

2 0 2 5

• D iscontinuity of direct autoflash
metering contact.

• Flash fires manually with PX
serie s (360PX can be used as

- No

No • No e lee tric shock prevention.

No

No

No

No

sensor auto).

• No flash-d istance checker in

viewf inder.

• Discontinuity of slow-shutter
sync function.

• No tlow-shutter-speed warning.

• No self-timer audible beeps.

• Back cover: fixed type (not
detachable)

• Disco ntinuity of contact
term inals.

Not·

REPAIR

■ The contents of this manual are mainly related to the adjustment
procedures for the 20 25.

Exc ep t for Exposure ad j u s t ment In s ta l la ti o n of exte rna l p art s, se e 2024 Ser vi c e Manual.
“Page" col umn provide wit h shows r e la te d page of 20 2 4 S e r vi ce Manual R ep air Guide

m

■ Assembly and adjustment procedures P a ge P ag·

GQSody a ss em b ly 1 (spool, spro ck et, win din g base plate A)

■ Sp roc ke t g ea r po sit ion ing me thod .............................................................................................................. 2

EB o ay a s se m b ly 2 (w in d in g shaf t) ................................................................................................................... 3

■ Winding gear pos itio nin g met hod................................................................................................................... 4

■ Reversion stop lev e r stop ti mi ng ad j us t m e nt........................................................................................ 4

S l Body asse m b ly 3 (w in d ing base p la te B) ................................................................................................

■ Overrun ec ce n tr ic pin ad jus tm e nt ............................................................................................................... 6

■ Check of windin g me ch an is m·

QQF r on t b ase p late block as se m oly 1 (shutte r, m irr or box. m ag n e t base pla t e)

■ Check of mag ne t at tr a c ti o n ............................................................................................................................ 12

C ll Front b ase plat e blo c k as se m bly 2 ( f in der block, bayon et m oun t front cover, etc . )
3 0Front base p l a t e blo ck as s em b ly (mo u n tin g fro nt base p la te block onto body)

■ Shutter gear pos iti on a djus t men t ................................................................................................................... 15

■ Shu tt er charge adj ust ment

COF Ie xi b le P . C board insta ll a t ion ....................................................................................................................... 17

■ Body back a d ju st me nt ......................................................................................................................................... 19

■ Finder back adju s tm e nt .................................................................................................................................... 20

■ Exposure a dj us tm e n t

Qj ASA in cli na ti on adju st me nt .......................................................................................................3

GOa /D convers ion refe re nc e vo lta ge ad j u s t ment ....................................................................3

QjMan ua ! SS adj us tm e n t ................................................................................................................4

Sl A-a u to lev el ad ju s tment ............................................................................................................5

■ Check of LED i ndic ation ............................................................................................................E

■ Check and ad ju st me nt of r ele a se lock volt ag e and LED blink v olt ag e

■ Check of l imits a t high and low sh u t te r speeds ...........................................................6

■ inst a l la t i o n o f external parts ......................................................................................................... 7

......................................................................... * ............................................... 7 — 8

............................................................................................................................... 16

.................................................................. 1

5

.....................

.................

..............6

........

9

13
14

■ Shu tter b lock ass em b ly pro cedur e

■ Shutt er block a d j us tme nt .................................................................................................................. 8

■ Mir ror box a s se mb ly pr o ce d ur e ....................................................................................................................... 37

■ M easu ring ins tru m ents ............................................................................................................................... 41

■ Foc u s i n g p late r e p l a c e m e nt p r ocedure ......................................................................................................... 42

..............................................

- ................................................................. 31

■ Adjustm ent and checks to be made Pa ge Pag e

[DBody. win d in g uni t

■ Sp r ock e t g e a r p ositi o n i n g ........................................................................................................................................2

■ Win d i n g ge a r p ositi o n i n g ........................................................................................................................................4

■ Fi l m co unte r o p e r a t ion g e a r po s it io n i n g ............................................................................................. · .· ·· · 5

■ Re v ersion stop le ver s to p ti m i n g a d ju stme n t ..............................................................................................4

■ Ove r ru n ecc e ntr ic pin a djus t ment .....................................................................................................................6

■ Sprocke t c l a w positi on ch ec k ..............................................................................................................................7

■ Re v e r s i o n st op le ver timin g c h e c k .....................................................................................................................7

■ Winding o p e r a t i o n le ver timing c he c k ............................................................................................................8

[£Shutter ope rati on

■ Shut ter g e a r p o s it i o n adj ustm ent ........................................................................................................................ 15

■ Shut t er c harg e ad ju stm e nt...................................................................................................................................... 16

■ Shut t er curt ain p o sitio n c h eck .............................................................................................................................33. 34

■ Mi r r o r m agn e t a t t r act i on che c k ........................................................................................................................ 12

■ R e l e a se loc k v o lt a ge c h e c k .................................................................................................................................28

■ S yn c h r o X time la g ................................................................................................................................. 8

3 3 Shutter sp e ed

■ Cu rt a i n sp e e d a djust m e nt........................................................................................................................4, 8

■ Manual SS a d j us tme nt...............................................................................................................................4. 8

5)Auto exp o su re

■ ASA in c l inati o n a dju stment.....................................................................................................................3

■ A / 0 c onve r s i o n r e f e r enc e vo l ta ge a d j u s t ment .......................................................................3

■ A - aut o lev e l adjus t men t ..........................................................................................................................5

■ Chec k of r e l e a se magn e t a t t rac t i o n

■ Check o f li mits a t high and low s h utter s pe ed s

.............................................................................................................. 12

..................................................................6

[Sl e d

■ Che c k o f L E D i nd icati on.......................................................................................................................

■ Chec k of L E D bli n k v o l t a g e ............................................................................................................... 6

5

Q0Vie wfin der, focu sin g

■ Body back ad ju st m e nt .............................................................................................................................................. 19

■ Fin d e r bac k a djustment

■ Mi r r or ang l e a djus t m en t ....................................................................................................................

................................................................................................................

...

.............. 20

........................

39 , 4 0

η

Pr ecautions

■ The follow ing prec autions m ust be taken concerning all p lastic p a rts.

1 . When clean ig . use Flortsolve or alcoh ol. Do not use thin ner, keto n e, ether , et c.

2 . Se cure all part s w i th the sp ec if ie d sc re w s , taking care not to e x e nt ex c e s s iv e stre s s to them.

■ Handling of the flexib le board

The flex ib l e board u ses MOS ICs and is v e ry s e ns i ti ve to s t a t i c e l e ctricity . The re fo re , the fo llo w
ing points m us t be kep t in mind when repa irin g.

• When han dling the flexi bl e board it s elf or w ir ing it to the body, use a con du ctio n mat to pre v en t

sta ti c ele c t ri c it y , and per fo rm all work as shown in the ill u s t r a t i o n below.

■ When grounding is impos sib le, co nn ec t the cable to a lar ge m e ta l p la te is te el desk or shelf ) .

■ Preparation for adjustments

■ Temoorarv nut
(2017-3309-75)

____ _ _

AS A f tfu ift hoioe r

-------

Mam SW h o tt er

I Fo r the general adjustm ent

check, use b attery.

(Use new battery)

or

■ Exposure adjustment

■ Resistor positions and adjustments

■ Fig. 1

lock voltage. LEO Win* voltage

■ Beforehand set A S A film speed to A S A 100 properly as below:
S e t A S A brush holder within range of A SA 100.

■ Fig. 2

AS A Drusft h oiO *r

S V resistor pi ate

level

conversion reference voltage

i288mVI

0 Π Adjustment of A S A inclination

iM e asu ring instrum entI D igital m ultimeter (Type 2508, 3476. 2507)
I Adjustm ent procedure

1. S e t the metering switch to ON and adjust by turning VR« so that the voltage at the point
in Fig . 1 is
Depending on the tem perature when adjusting, use the table below to get adjustment voltage.

144± 2 mV

(In case of 25‘ C room temperature)

(A dju stm e nt voltage]

Temper·wre (*CI
AdiHUMit reiuje (aV)

15±15

1331 2

20*15 25115

144 12

14 1.512

3012. 5

146.512

j~2l Adjustment of A/D conversion reference voltage

■ M easuring instrument: D igital m ultimeter (Ty pe 2508. 3476, 2507)

■ A dju stm ent procedure

1. S e t the m etering switch to O N and adjust by turning V R» so that the voltage at the point
in F ig. 2 is
Depending on the tem perature when adjusting, use the table below to get adjustment voltage.

288±3m V

(In case of 2 5 'C room tem perature)

(A d justm ent voltage]

Tem peratu re CC) 15=2.5
AJiuUMK voiufe (bV)

2012.5
283 13 288 13 233 13

27113

25115 30115

00 Adjustment - of manual S S

■ Measuring instruments: S h u tte r tester (Model S-2101, FS-1 D M N4)

■ Adjustmen t procedure

• Determine position of T V brush, referrin g to F ig. 2, or looking at s hutter speed L E D .

■ Fig. 2 R elation betw een T V brush
holder position and manual
S S

Reference

1 . Shutter soeed adjustment and check (see the table below)

Step

Φ

<2>

<3)

Item Part adju ste d Adjust m en t (check)

1/1000 curt ain
sp ew check

1/1000
adjustment

1/60 cheek

X time lag

--

S ,
ecce nt ric pm

--

------

( Both I st 4 2 nd cur ta in s
are within 1 3 m s .)

0.9 8 ms

(16—18. S ms)

(Rang e A : 0.4 ms o r morel
(Range 8 1 2 .4 m s or more)

If it is mor e than 1 3 m s o r le s s than 1 0m s. ad just the
2 nd curtai n speed.

Che t k it with S S 1/60 and if is de fe c ti ve , pe rfo rm
the adjustmen t on P. 8 .

Rem a r ks

--

• When the exposure unevenness at steps © ~ "d ) is over 0 . 3 EV in both B -A and B-C
ranges, and over 0. 4 E V in the A-C range, adjust the curta in speed as follow s.

• For the shutte r speed standard, refe r to the inspection standard.

2 . C urtain speed adjustment

Adjust by turning the ratchet so that the 1 st and 2nd curtain speeds are

1/ 1000.

IF ig. 3 (Increasing the curtain speed)

I Fig . 4 (decreasing the curtain speed)

11 = 0 . 3ms

at

• Remove the battery case base plate while
pushing ratchet to release the ratchet claw
and the rachet return.
(D o not return it com pletely.)

• Return it sufficiently and adjust by slowly

increasing the curtain speed.

5

SI Adjustment of A-auto level, check of L E D indication

■ M easuring instrum ents: Luminance box (M odel L-2101. L-222. L-223)
: E E tester (Model EE-2101. EE-2111)
: S S adaptor for E E teste r <Model SD -2101)
: M a ste r lens for S-auto (2005-0001-75)

■ Adjustm e nt procedure

1. S e t the camera and measuring instruments as follows.

• A fte r setting the m aster lens, turn it counterclockwise to put aside the looseness to one
side.

• Luminance box · Camera · Master lens · EE teeter · SO-21 01

K value : 1.2 Shutter dial : A Aperture'. F 5. 6 K value dial : 1.2 Aoerture switch : F 5.6

S: Luminance : EV 1 0. 15 ASA: 100 Distance: ASA dial : 100 Luminance switch: Same as

if: When using luminance box (L-222 or L-223). set it at EV' 11, and use a ND f ilt e r (M IN O L T A

ND 5 0 % F O R A D JU S T M E N T ) .

2. A d jus t and check as fo llows:

Step Luminance

EV 10

1

EV 15

2

■ Fig. 2

Shutter speed
adj ustment

34 ms

---

E E level
allowable range

---

±0. 4EV

Pan adjusted

V R . (Fig. 2)

(Check only)

Indication allowable range

(*0 .5EV)

m

1/60
1/30
1/15

:φ :

m

• 9-

—

m

:φ:

lu m ina nce
box.

I C h ec k a nd ad ju s t m e n t of re l ea se lo c k volta g e a nd LED blink vo l ta ge

■ Check
OQRelease lock voltage
G ]LE D blink voltage

• In case of out of standard above, adjust those as fo llowing procedure.

■ Measuring instrum ents I Constant voltage D .C power source (M O D E L 524B, E - l. E-2)

■ Checking procedure

1. Check the c urrent consumption at B setting ( in c l’d * indication) using m easuring instru
ments as fo llow s.

■ F ig. 1

Standard
Standard

D igita l multimeter (Ty pe 2508, 3476, 2507)

: D irec t current tester

2 .46± 0.1 V

2.56=0 .1 V

g n

0.C p o w tf sourct lO utDuC JO

2. M easure the release lock voltage while reducing slo w ly the voltage of D.C power source

from 3V.

3. In case of out of standard, replace R u (68-390ΚΩ),

■ Fig. 2

I® "

Θ

a Camara

Shutter dial : B
Touch SW I ON
Connection of : ©···Battery case contact

power source 0··· Batter case base plate

■ C hecking high and low s hutte r speed lim its

■ Measuring instrument : S h u tte r tes ter (M o del S-2101. FS- 1DM N 4)
Q]High shutter speed limit (s hutter speeds in other than high luminance operation in A mode.)

• Cheek the s hutter speed with the shutter d ial set to A.

Standard 0.69— 1 .38ms

2 ] L o w shutter speed limit (sh utter speeds in other than low luminance operation in A mode.)

e S e t the shutter d ial to A . and then check the exposure time w ith light to the receiver

interrupted .

Stand ard

Within 5 sec.

Q External parts (completion)

[§] s onibo n d

SC-108

Turn the film advance lever
on·-halt turn to lit it into
the winding shaft.

Film advance
lever

B F ig . 2 T V brush holder position

Rewinding knob

ASA
Operation knob

<0132 3

Top cover

■ Set main switches to OH (cover and body
sidesi Turn in the direction ot the arrow

Shutter dial

TV Srusn
nolder

Bottom cover

613 25 (x 2)

ASA brush
holder / s i

Front top cover

Sh utter block adjustment

■ M easuring instruments: Cam era standard tes ter (Model ST-5101)
: S hutter tester (Model S-2101. F S-1DMN4)

(Prepara tio n s

1. Mount the shu tter onto the front base plate block and install it onto the body (as shown
in Fig. 1).

2 . Connect the tester as shown in Fig . 2. 8,*c!t

■ Fig. 2

3

Oocrai· in· snu lttr >» dtscnUM on P 11 <20 24 R m tr Guk mi

I A dju stm ent procedure

Q ]Curtain speed adjustm ent

I . Set the S S - S E L of ST-S101 to 1000 and adjust by turning the c urtain spring cylind er

shaft so that both curtain speeds are

• When the curtain is not open, shift S S - S E L to 60 and make a rough adjustment befo
rehand so 'ha t both curtain speeds are about 12 ms. and then adjust again with the
S S - S E L set to 1000.

CZShutter speed adjustment

1 . W ith the S S - S E L set to 1000. release the shu tter and adjust by turning the S j ecce ntric

pin so that the shutter teste r indicates

3 )X time lag adjustment

1 . Connect the synchro cord of the shutter tester to the camera. ( Fig. 2)
2 . W ith the S S - S E L set to 60. release the shu tter and check to be sure that the speed is

0.4m s or more in range A and 2 .4m s or more in range B

To make the adjustment, bend the end of the X contact.

■ Fig . 3

11 = 0.3ms

0.98 ms

( F ig. 31

( Fig . 4)

■ Fig. 5

• Increasing me · Decreasing the
curtain speed curtain speed

Q] Spool, sprocket, winding base plate A

g ] 3 3 40

7761 -2040-07

■ r.

■ Fig. 1 3037 spring setting

Sat «tin He ciutcn

I SoO Cktt fur

® 9762-2040-07

Winding base plate A

■ S«t it onto a m M i wttn in·

t omck t r fi>f (3055! m

position Taaa c an not to

• Ik » f u r esengafm ant-

I S i l n serecMt as sftmn m

Fi*. 1 and lit w tra n i M u

pun A.

■ Fig. 2

Sprocket

v.

Sprocket shaft

■ F 't 3
o£> 9721-0150-13

iF ig. 3 Installing direction

of E-ring

Pmn comple tely

9771 -0150-13

■ Sprocket gear positioning procedure

I Ρις. 1

1. W ith the winding idler geir crest fitted in hole * 1 of winding base plate A and with the
sprocket idler gear bottom fitted in hole ξ;. set the sprocket gear so that the sha ft under
the sprocket gear is parallel w ith winding base plate A.

2. Then, put a mark on the tooth of the winding idler at hole a>. as shown in F ig. 2.

• After marking the winding idler gear, aiign the mark with hole ai and set the sprocket
gear as shown in F ig. I.

■ Fig. 2

3

2] Winding shaft

Assemble the p arts in the order (T '~(§)

■30661

I Fig. 1 3025 spring setting

I D o not allow it to ride on tt» winding fn r .

(F it the winding m alt, allowing It to move

in me direction ol tti arrow.)

■ Winding gear positioning procedure

B F ig. 1 Winding idler gear position B F ig. 2

1 . Make sure that the winding idler gear is positioned as shown in F ig. 1.

2 . A llow 3036 to move in the direction of the arrow, then set the winding g ear so that the punch

mark of the w inding gear is aligned w ith the mark of the winding idler gear. (Fig. 2)

4

■ Reversion stop lever stop timing adjustment

1 . Position the winding operation plate as shown in Fig . 3, and temporarily set the winding opera

tion lever.

2. W ith the winding claw and reve rsion stop lever fitte d into the winding gear as shown in F ig.

3. press the winding operation plate in the direction of arrow (§) w hile applying a load to the
sprocket in the direc tion of arrow ® so that the winding claw is set secu rely onto the wind
ing gear.

3. Applying a load to the sprocket and winding operation plate as shown by ® and (B). turn the
reversion stop lev er shaft until the winding operation le ver is disengaged from the winding
operation plate. (F ig. 4)

Ξ Ι Winding base plate B

Stopper boss

9762-2060-07 ( *

Winding base
plate B

1404

Fig. 2

3416

1107

iM r n n t ii t a it loading signal Itv tr 13422 ! pushing u

in Ians direction and «<1 3407 wfuie cnargtng th·
soring 13 404 1 by about 3/4 turning m in· direction
Of arrow

■ Do not let il go unoer 3ME

■ F it 3

■ Fig. 1

Winding g ur

• Mm· sure mat the punch m art of
tn* W inding p a r is correctly facing
me c»nt«t of the winding idler
gear, and tnen set 3410 so that
the V groove is positioned as snown

at·m

■ Fig. 2 3416 spring setting

i! 235

i CIiCK.·

0345

3410

■ Pos ition in g

■ Fit. 1

■ Fig. 3 3414 spring setting

■ Fig. 4 3424 spring setting

■ Afte r completion of the assembly work, mount the film
carry out the adjustmen ts and checks on P. 6. 7. 8 .

advance lever and

■ Overrun eccentric pin adjustment

1 . A fte r «rinding, hold the film advance lever and turn th« eccentric pin (9291) cou nterclockwise

until the sprocket shaft (3052) touches the winding shaft rece iver. (Fig. 1)

2 . Return the winding le ver sligh tly, and then wind it again to set it in the condition shown in

Fig. 2.

3. Then, shift the sprocket shaft by finger toward the body cente r to set it in the condition
shown in Fig. 3. and slowly turn the eccentric pin (9291) clock wise until the overrun preven
tion lever Is engaged with the ratchet of the sprocket shaft.

iF ig. 3

- 9791

• Checking adjustm ent: During the winding lev er operation, the end of the overrun prevention
lever should not be caught by the sprocket claw. A fter winding is

completed, the lever should he engaged with the claw .

■ W inding mechanism check

CD Position of sprocket claws

A f te r winding, hold the winding lever and return the sprocket in the direction of the arrow. as

shown in F ig. 1. The sprocket claw positions should then be as illu strated.

■ Fig. 1

[13 Reversion stop lever timing

Slow ly tu rn the film advance lever w hile applying a load to the sprocket. The winding opera

tion lever should disengage from the winding operation p late a fter (or at the same time) the

second s tep of the reversion stop le ver begins to engage with the claw of the winding gear.

■ Fig. 2

(3]Check and adjustment of windi ng operation lever timing

• A fter winding completion, slo wly return the film advance lever. The winding stop lev er should
engage on the 1 st stop position of the charge operation plate. Before it engages ot. the 2 nd stop
position, φ the winding claw and (

ing operation plate. The order of φ and (2) is reversable.

• And also make sure that a clearan ce should be visible between winding stop lever and charge
operation plate a fter winding stop lever engages with the 2 nd stop position of charge operation
plate.

■ Fig. 3

2) the winding operation lev er should disengage from the wind

If adjustment is not made well as mentioned above, replace winding stop lever with a new one.

'T iming failu re of winding operation

lever may occur by rep lacing parts of
winding mech. w ith accumulated

^tolerance of each part.

Puncn mar*

■ Note:
The following symptons may occur by replacing parts of the winding stop lever A-set even timing

of winding operation lever is normal.

X/ The symptom of replacing 0322-01 hy 0312-01.

Idle winding may takes place cause of winding claw is not engaged even winding stop lever
engaged on 2 nd stop position.

The symptom of replacing 0312-01 by 0322-01.

Winding stop lever may not engage on the 2 nd stop position or no clearance appears even
winding stop le ver engaged.

J

Types of winding stop lever. A set

Parts No.
2017-0312-01 no marked 1 3 6
2017-0322-01 mar ked | 3 S

Mark | L irnnl

4] Front base plate block assembly-1

I Refe r to the arrangement of the lead w ires on the next page.

I install m· release megnet on the mirror

box wnose MP return lever is charged

wnile ouehing the release lever in the
direction of arrow (reieasinf of magnet
att ractio n .

I Refer to P. 11 for overcharge adjustment

after installing.

9612-1630-01 <x 2 I

I Check the release

magnet attraction.

(P 121

Shutter

Install with charge
completed

Mirror angle adtustment (P. 39)

■ Release magnet attraction check

■ Measuring instruments t C onstant voltage D.C power supply (Mo de! 524B. E - l, E-2)
: D ial tension gauge (500g. 300g)

■ Checking procedure

e Attractio n check

■ Fig. 3 S eparation voltage

e S eparation voltage c heck"- A s shown in F ig. 3. connect to a D .C power supply and check to

.......As shown in Fig. 1. set a tension gauge to the release magnet, and then

check the value 3 times when the con tact piece sep arates.
( If a tension gauge of more than 270g is not available, a spring scale
of about 500 g can be used instead as shown in Fig . 2)

Standard

see if the contact piece separates at 1.8 V or less.

Separates at 1 .8V
or less

5J Front base plate block assembly-2

iT ig ht screw * in order φ ~ < 3 ).

9612-1635-07 (x 3 )

F No. infinder base plate

For the adjustment of Ψ M o . tnfinder attar im tall int.

raft* to P. 21 .

Front base
plate block

9611-1625-07 ( x 2)

> 0

Fig. 2 1028 bonding

position

Lam lock i k W

1028

7

IF , |.l

AV resistor

■ Os m l toucn ttw m r*tor surface

- w ith lingers. ,

'« O 0175 *S>

■ Ply attention le
irntelling direction. ^

1028 O j

1005

Remote control itOe

I Fig. 2

Front cover

9611-1620-01

(¥ ) LOCXTITE 242 ( X i )

- Remote control term in i

Φ

9611 -2040-04 ( X 4 )

Tight s crews in order φ — ® .

2 Front base plate block assembly

I A fter completion of assembly, perform the shutter gear position end shutter cherge adjustments.

f 9761-1730-07

Front base plate

block

R«t#f to Jtiomoty
procedure P 3 11

14

(P. 15. 16/

!S j 3W0

SiMiT al 9*01

I lead e irt *rran««m*nt

9761* 7060-07

?7β ι-:οα ί-ο7 ·.

Tight screws m oraer

L — 6,.

f t U

-Let mutter cnerf· | « v C m o we tn

| tn· a*f*c:ion of trm Mtrrrm *n a irntatl

tn· front s « * out· ouxjl

— [5j LOCXTITE 2«

Sere» he x · of 9113 )

Battery case
base plate

9 ftl! -2030-01

< - 3 ·

^9771 -0200-13

*{oj 33<0

Tiffiten «1 m ft* *»v

button o*oress«a.

I Tafc e car· not to
tcrstcn m· Out ton.>

9761 -2050-07 * 4

■ Tight screw s in order

rr>-—ii .

the ι ·Μ « ir e » tn rou*n t n · ^ oto^r

■ Shu tter gear position adjustment

1. Engage the gears so chat the mark of charge gear A faces the cen ter of charge gear C , and
tighten 9012. The gear engagement clearance should be 0.1 — 0. 2mm.

IF iq. 1

Charft fw A

■ Sh utter release procedure

■ In this cam era, the m irror operation mechanism is started w ith the separation of the release
magnet ( R M ag). Therefore, after mounting the shutte r block on the body, the shutter cannot
be released unless the flexible P .C board is insta lled w ith the wiring completed. Fo r th is
reason, the shutter should be released bv the following method when p erform ing any checking
or adjustm ents, such as for winding, m irror box, shutter release, etc.. afte r assembling the
front base plate block as shown on P . 14.

CD By using a release tool (2 0 1 7-0003- 75)

3] By using a battery

■ Caution In both methods CD and E3. supply power until the completion of shutter operation.
(Oth erwise the shutter tester may fail to give a correct indication.)

■ Shutter charge adjustment

1. S lowly turn the film advance lexer and check the o ver-charge from the time the 2nd curtain
is stopped (th e 2 nd curtain stop lever moves from (J) to (§ >, as shown below) until the film
advance lever stops by checking the movement of the sprocket id le r gear.

16

Caution I If the winding operation is not smooch, or if the overcharge exceeds two teech.

immediately scop winding and adjust.

■ Adjustment procedure

• Overcharge is less than 1 tooth

• O vercharge is over 1.5 teeth

... ...

Turn the e ccen tric pin (9281) counterclockwise.

..........

Turn the c ccen tric pin (9281) clockwise.

• If the adjustment by the eecentrie pin is not sufficient, shift charge gear A by one tooth.
'I n the case of an undercharge, shift it in the direction of *ai, and in the case of an over
charge. in the direc tion of <t>*. as shown in Fig . 2.)

17

[7] Flexible P . C board installation

I Afte r installing the flexible P . C board and soldering the leed w ires, carry out the adjustment of

P 19— 29.

Ilf the shutter block has been disassembled, ad just it before mounting the circuit board. (P. 36)

ASA resistor

■ Fig. 1 Removing method of
operating button

Nip 202 3 tn the oiroction 0 1

ar r ow using p l i e rs or t t w li h ·.
When installing i t push t h·

operating butto n.

■ install the parts within the
dotted lint after the
adjustments of P. 1^-P. 2 9 .

Self timer lever v

& (¥] EYERGRIP —

9761 -2050- 07 f x 2 )

9761 Ur u

-2050-07 (x 2)

^-enfl

Side cover B

Side cover A

Β Γ ι ΐ th· pos i t i ons

self timer SW *oa

Self time r le v e r
wfwfl inste llinf.

1016

of

■ Preparation for adjustments

Temporary nut
(2017-3309-75)

Brush holder

Mam SW holder

■ For the general adjustment
check, use b a ttery.

(Use new b attery )

or

Body back adjustment

I Measuring ins tru m ents : B ody back gauge

F la t plate (fo r 2005)
D ial gauge

I Adju stm e n t procedure

Check and c o rre ct the fla tness of the pre ssure p la te contact surface b efo re measuring the body
back.

[Sta n d a rd ]

43.72 mm

- 0. 02

• I f the body back is low e r than the standard value, inse rt
adjusting wash ers under the bayonet mount.

[Typ e s of adju sting w a shers)
Pa rt No.

Thickn ess (mm)

2005-1061-81 2005-1052-81 2005-1063-81

0.0 2 0.05 0. 1

• I f the body back is higher than the standa rd value, r epl
ace the bayonet mount w ith the bayonet mount used for
repair (2017-1010-81) and adjust in combination with the
adjustin g w ashers.
The flange of the bayonet mount used for repair is 0. 1
mm thinne r than th at of the reg ular bayonet mount (2017—

10 1 0-01 ) .

Viewfinder back adjustment

I Measuring instruments I 1000 mm collimator (Model RC-1000 I , Q. HI)

: M aster lens for 054 finder back adjustment (054-5202*79)
: M agnifier

I Ad ju stm ent procedure

1. Set the camera so that the chart image is as shown in F ig. 1, and set the scale of the
master lens to 43. 565.

e A fte r setting the master lens, turn it counterclockwise to put aside the looseness to one

side.

I Fig . 2

2 0

I Fig. 1

Green « M ia I S r r· "

1-43.565

Collimator ensrt ιιηχ·

-1OCO m m

2. Make sure that the scale of the master lens is positioned as shown in F ig. 2. and move
the 3 adjusting screws of Fig . 3 up and down uniformly to adjust the vertical line of the
chart image.

■ Fig. 3

e If the microprism is p artially obscure, adjust the vertica4 balance by using the screw s,

taking care not to deflect the vertica l line of the chart image.

3. When the helicoid of the master lens is turned to adjust the focus after operating the
shu tter several times, the scale position of the m aster lens ihould be as follows:

iF ig. A Allowable range

Green

43.S85—

43.565

0.545