Hasselblad 503CW User manual

503CWOMS.EPS
960807
COPYRIGHT © 1996 ANDERS ENGSTRÖM
ANDERS ENGSTRÖM, ILLUSTRATÖR
Östra vägen 46
430 91 HÖNÖ
tel/fax [phone]
[email protected]
Victor Hasselblad AB
Göteborg Sweden
Service Manual
Copyright © 1998 by Victor Hasselblad AB. All rights reserved. No parts of this material may be reproduced, stored
in retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopy, recording, or
otherwise, without the prior written permission of the Company.
October 1996

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Camera body 503CW
Contents list
Revision 1 May 1997
General
Camera body 501C
Camera body 503CXi
Camera body 503CX
Camera body 500C/M (Classic)
Exploded view: Winding crank
Exploded view: Left hand wall and electronics
Exploded view: Right hand wall
Exploded view: Front bayonet plate
Exploded view: Auxiliary shutter and mirror assembly
Exploded view: Mechanism plate
Exploded view: Gear housing
Exploded view: Shell
Sub-assembly: Front bayonet plate and auxiliary shutter with mirror
Adjustment, final assembly and calibration of the flash meter
Reassembly
Disassembly
Tools
Camera body 501CM

Related Service Infos
Revision 4 January 2001
503CW - 501C - 503CX/CXi - 500C/M - 501CM
20/93 Flash metering circuit redesigned - 503CX
04/94 New camera - 501C
05/94 Exploded views and spare part specifications - 501C and 503CXi
06/94 Spare part No. changed - 500C/M and 503CX
12/94 Pin fitted in bayonet plate - 501C
04/95 Tripod foot modified - 501C and 503CXi
09/95 New tool - 503CXi
10/95 Updated pages - 503CXi
02/96 Signal arm shortened - 501C and 503CXi
14/96 New Service Manual - 503CW
14/97 New camera body - 501CM
15/97 Modifications - 501C and 503CW
28/97 Camera body in black finish - 501CM
12/98 New film speed range - 503CW
02/99
10/99 Discontinued parts - 501C, 503CXi, 503CX and 500C/M
Stray-light - 503CW, 501CM, 501C, 503CX/CXi and 500C/M
08/00
New CD-ROM - Version 1.3
09/00 Washer added in the gear box - 501CM and 503CW
01/00 New CD-ROM - Version 1.2
14/00 Discontinued parts - 500 series cameras
12/96 Tripod foot adapter/kits
17/93 Fitted with wrong spacers - 503C/M and 503CX
01/01 Modified magazine hook - 501CM and 503CW
1.

Related Service Infos
Revision 4 January 2001
503CW - 501C - 503CX/CXi - 500C/M - 501CM 2.
New CD-ROM - Version 2.0
04/01

June 1998
Camera body 503CW General description
1:1
Revision 1
Camera type: Single lens reflex camera with 6 x 6 (2 1/4 x 2 1/4 in) max.
film size. Interchangeable lenses, film magazines, viewfinders
and focusing screens.
Weight: 610 g.
Lens mount: Hasselblad bayonet mount for CF and C lenses.
External
dimensions: 91L x 114W x 110H (3 9/16 x 4 1/2 x 4 11/32 in).
*Acute-Matte D designed by Minolta
Design: Mechanical, with an aluminium alloy camera body shell cast in
one piece.
Viewfinders: Folding focusing hood interchangeable with reflex viewfinder,
prism viewfinders with or without built-in exposure meter or
magnifying hoods.
Film advance: Manual advance or motor driven with Winder CW.
Simultaneous shutter cocking.
Winder CW winding time: 1.05 sec, approx. 0.8 frames/sec
in continuous mode.
Flash control: TTL/OTF-metering. ISO 16 - 1000 with flash adaptors
SCA390 or SCA590 for connection with flash units from the
SCA300 or SCA500 systems respectively. Metering area within
40 mm diameter in the centre of the image area.
Note! From camera serial No. 19ER18271 the ISO range is
changed to 64 - 4000.
Tripod coupling: 1/4 in and 3/8 in socket threads and base plate for quick
coupling attachments.
Focusing screen: Hasselblad Acute-Matte D* focusing screen.
Sales code No. 42204.

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503DGRM1
961018
COPYRIGHT © 1996 ANDERS ENGSTR
Ö
M
ANDERS ENGSTRÖM, ILLUSTRATÖR
Östra vägen 46
430 91 HÖNÖ
tel/fax [phone]
[email protected]
October 1996
1:2
Camera body 503CW Camera release sequence
April 1998
Revision 0
Release sequence
Pre-
released
position
Variable
timing
interval
Key
position
Mirror
Auxiliary
shutter
Lens shutter
Aperture f 2.8 f 22
1/500 sec

Tools
Camera body 503CW
October 1996
Revision 0
Tool No. Description Used for
2:1
V-2200 Bender Signal arm adjustment
V-2201 Bender Mirror arm adjustment
V-2202 Bender S-arm adjustment
V-2203 Bender Release arm adjustment (aux. shutter)
V-2205 Bender Supporting tool when using V-2201
V-2206 Winding knob Substitutes regular winding crank during
repair work
V-2211 Pin driver Fitting the locating pin in the front plate
and the front gear bracket
V-2224 Bender Release arm adjustment
V-2229 Focal length gauge Adjustment of the focal length,
mirror 45ºangle and focusing screen
V-2236 Microscope Focusing screen adjustment
V-2354 Exposure gauge Release sequence control
V-4151/52 Focusing tester Focusing screen adjustment
V-4704 Key Focusing screen adjustment
V-4705 Focusing screen adapter Focusing screen adjustment

Tools
Camera body 503CW
October 1996
Revision 0
Tool No. Description Used for
2:2
V-5423 Riveting jig Replacement of aux. shutter flaps
V-5942 Exp. gauge Release mechanism adjustment
902474 Test box ELX/CX Calibration of the TTL flash meter
902658 Key angle gauge Adjustment of the front key angle
(V-2075)
904644 Bayonet plate Stop lever adjustment
970600 Service Test System Calibration of the TTL flash meter
905020 Screwdriver Screws in the mirror box

January 2001
Camera body 503CW Disassembly
3:1
Revision 1
Camera shell
Remove the lens, film magazine, view finder, focusing
screen and winding knob.
Remove the screw (830060), coupling (22767) and
washer (22799).
Remove the leather (13374), shim (22473), screw
(822701) and ISO selector knob (22495).
Do not damage the sliding contacts.
Remove the cap (22470) from the chassis connector and
peel back the leather covering two screws
(823335). Remove these screws and firmly push the
chassis connector into the body of the camera.
Remove the tripod foot (30763) held by six screws
(829755). Remove the two rear screws (829755) and
the two front screws (820781).
Fig. 1.
The chassis can now be separated from the camera shell.
Ensure that the lens release button (13139), release
button (22759), buffer (22367), teflon cone (103773)
and distance washers (810620) are not dislodged from
the camera shell and lost.
Fig. 2.
Operate the S-release on the camera by pressing the
S-arm (21167) towards the stop. Remove the front gear
cover (22876). Do not remove the side cover (22813)
unless it is absolutely necessary.
The side cover is held in position by the spring (30775)
secured with two screws (829425) and double sided
tape.
Note! If removed, a new cover must be used when the
camera is reassembled.
Fig. 1
Fig. 2

May 2000
Camera body 503CW Disassembly
Revision 2
Circuit board (22575) *22882
CAUTION! When handling the circuit board a
grounded bench mat and a wrist strap must be
used to prevent ESD damage.
Lift the chassis connector out of the hole in which it is seated
in the left hand wall. Remove the two screws (820325) that
secure the photodiode. Gently ease the photodiode through
the hole in the left wall.
Remove the two screws (820011) and the grounding
attachment (22453). Remove the screw (820011) and the
cable holder (12453). Remove the two screws (820015) and
separate the circuit board from the chassis.
Finally, remove the insulating plate (22746).
* Note! The circuit board (22882) is fixed to the wall by an
insulating double-sided tape, screws and attachment.
Fig. 3.
Front bayonet plate (30777)
Disconnect the spring (814512) from the push rod (22369).
Remove the release bar (30375) by gently lifting it with a
screwdriver so that it is freed from the front gear wheel and
then easing it forward.
Remove the front bayonet plate (30777) by removing two
screws (820015) in each of the right and left sides, two
(821017) in the view finder screen frame and two (823655)
in the bottom plate. Carefully draw the front plate forward.
Fig. 4.
Note! The drive spring should be held when the gear wheel
is released to prevent damage to the drive spring by
releasing the tension too quickly.
Rear plate (30300)
(including auxiliary shutter)
Disconnect the arm (22781) secured to the mirror frame by
a clip (817115). Remove the washer (810649) underneath
the arm. Remove two screws (821017) on top of the
focusing screen frame and six (820015) then partly withdraw
the rear plate. When partly removed, disconnect both the
upper and lower connecting rods. The rear plate can now be
removed completely.
Fig. 5.
3:2
Fig. 3
Fig. 4
Fig. 5
823655
820015
821017

Camera body 503CW Disassembly
October 1996Revision 0
3:3
Focusing screen frame (22812)
Remove the two remaining screws (820015) holding the
focusing screen frame to the right hand wall and lift the
frame off.
Right hand wall (21095-1)
Remove (or cut) the foam plastic pad (22582) to get
access to the three screws (820014). Remove the right
hand wall.
Mechanism plate (21125-1)
Remove the damping ring (22287) by first removing
screw (822605) and washer (810836). Put the screw
(822605) back, to keep the spring (30384) in place.
Remove the screw (821631), washer (810532) and gear
wheel (13112). Beneath the gear wheel remove washer
(810826). Remove the mirror spring (814827).
Fig. 6.
Remove the mirror actuating lever (13362) from the
rear of the right hand side wall together with the lens
lock (13280).
Remove the following parts shown in Fig. 7.
1. Spring (814826)
2. Screw (821032)
3. Spring (816914)
4. S-arm (21167) and hub (840701)
5. Release arm (13357) including push rod (22369)
6. Stop lever (22769), clip (817119) and spring
(816752)
Remove the remaining six screws, the stop angle
(13432) and adjustable pawl (13170).
Separate the mechanism plate from the right hand wall.
Fig. 7
3
6
1
425
Fig. 6
13112
822605
22287 821631 814827

DIS10.EPS
Camera body 503CW Disassembly
3:4
May 2000
Revision 1
Remove the lower (13101) and the upper (13100)
connecting rods and dismantle the remaining parts on
the mechanism in the following order.
Fig. 8.
1. Screws (820016) 2 pcs
2. Bearing bracket (13171) and nut (13116)
3. Gear wheel (13167)
4. Screw (822605)
5. Lid (14280)
6. Gear (22699)
Note!
When removing the gear (22699) care should be taken
to ensure that the spring (30384) does not become
displaced.
Reverse side.
Fig. 9.
10. Gear (13182)
11. Auxiliary shutter stop (22436)
12. Clip (817112) washer (810404) spring (816802)
13. Shutter bar (20912) (Note. The gear housing must
be rotated)
Gear housing (30324)
Remove the gear housing from the mechanism plate and
remove the screw (821033) and the cam (22355).
Separate the front and rear section of the gear housing
and disassemble as follows.
Fig. 10.
1. Disconnect spring (816504)
2. Remove activating hook (20919)
3. Locking ring (810938)
4. Washer (810826)
5. Locking pin (812106)
6. Gear wheel (13169)
7. Ratchet wheel (20924)
8. Washer (810840)
9. Gear wheel (13509)
Fig. 8
Fig. 9
Fig. 10
12
13
6
3
5
21
4
10
11
3
4
1
2
6
5
7
9
8

DIS10.EPS
Camera body 503CW Reassembly
May 2000Revision 1
4:1
The lubricants mentioned in the text are:
Grease = Isoflex Topas L32
Oil = Isoflex PDP 48
Gear housing (30324)
Lubricate carefully the washer (810840) with
oil. Lubricate with grease and fit (incl. the above
mentioned washer) the ratchet wheel (20924) into the
front section of the gear housing (30304).
Lubricate with grease and fit the gear wheel (13169).
Note. The correct relationship between the two gears
before inserting the locking pin (812106) into the shaft.
Fit the locking ring (810938) and the activating hook
(20919), lubricate carefully with oil. Fit the spring
(816504) and the washer (810826).
Place the stop gear (13509) into the rear section of the
gear housing (13157).
Lubricate the shaft of the ratchet wheel (20924) and
put the front and rear section together.
Fit the mirror cam (22355) and secure with the screw
(821033).
Note! The position of the mirror cam (22355) relative
to ratchet wheel (20924).
Fig.11.
Mechanism plate (21125-1)
Ensure the auxiliary shutter release connecting rod
coupling and the control gear wheel move freely (i.e.
with no friction). Lubricate lightly with oil. Lubricate
the gear wheel’s cam with grease.
If it is necessary to replace the coil spring (30384) fit it
into the spring mounting on gear wheel (22699) as
shown in fig.12. Use a new spring, contained in its
plastic ring. Lubricate with grease.
20924
30304
810938
20919
812106
13169
816504
810826
13509
13157
22355
821033
Fig. 12
Fig. 11
810840

Camera body 503CW Reassembly
May 2000Revision 2
4:2
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Gear alignment
13182 22699
14280
822605 Gear housing
13167
13171
13116
820016
Mount the gear housing (30324) to the mechanism
plate.
On the reverse side of the mechanism plate lubricate
the hub with grease and fit the shutter stop bar (20912)
spring (816802), washer (810404) and clip (817112).
Fig. 13.
Note! The gear housing must be rotated when fitting
the stop bar (20912).
Lubricate the cam of the gear wheel (13182) with
grease and fit to the mechanism plate.
Note! The position of the gear wheel engagement
according to fig.14.
Hold the gear wheels in position and on the reverse side
of the mechanism plate, position washer (810932) and
lubricate the hub with grease. Fit gear wheel (22699)
together with the coil spring. Lubricate the coil spring
with grease.
Assemble the lid (14280) and temporarily secure with
the screw (822605). Fig. 15.
Tension the spring by rotating the gear wheel (22699)
in the direction shown in fig. 14. Test the operation by
pushing the shutter release connecting rod up and down
several times (tension the spring after each operation).
The gear wheels should rotate freely. Fig. 14.
Lubricate with grease and fit the intermediate gear
wheel (13167), bearing bracket (13171), nut (13116)
and two screws (820016).
Position the bearing bracket (13171) and mesh the gear
teeth, secure the two mounting screws (820016).
Fig. 16.
Mounting
position
816802
810404
817112
20912
30324

Camera body 503CW Reassembly
May 2000
Revision 1
4:3
Fitting the mechanism plate to the right hand wall
On the mechanism plate fit the upper and lower
connecting rods to the pins on the gear wheels. (13100)
for the upper shutter and (13101) for the lower shutter.
Lubricate with grease. Position the auxiliary shutter stop
(22436) in place.
Place the mechanism plate in position on the right hand
wall. Attach the adjustable pawl assembly (13170) with
two screws (820022). Lubricate the pawl with a drop of
oil and ensure that it is free to operate. Attach the stop
angle (13432) with screw (821017).
Secure the mechanism plate with the remaining three
screws (823015), (820020) and (820015).
Note! The longer connecting rod (13101) which
operates the lower shutter is fitted below the lower-left
mounting post behind the signal arm.
Fig. 17.
Connect the push rod (22369) to the release arm
(13357). Place the arm on the pre-greased pin
(836514).
Fit the S-arm (21167), hub (840701), spring (816914)
and secure into position using screw (821032). Check
for ease of operation.
Connect the spring 816914 to the S-arm and position
the straight end to the pin on the shutter release
connecting rod reverse side. Connect spring (814826)
between the two pins. Check for ease of operation.
Fig. 18.
Fig. 17
Fig. 18
82301513100 820020 820022
13170
13101 820015 13432
13357
21167
816914
814826
22436

Camera body 503CW Reassembly
January 2001Revision 1
4:4
Fig. 19
Fig. 20
Fig. 21
Fig. 22
13355
13362
13280
13356-1
816720
30727
Cover 22813
814827
13108
821631
Fit the stop lever (13355) and spring (816752) to the
pre-greased hub. Secure with the clip (817119).
Lubricate the hub (13108) with grease and place a shim
onto it. This shim can be in several thicknesses for
adjustment as follows: 0.10; 0.20; 0.30 mm with
corresponding part numbers 810826, 810827, 810828.
Attach spring (814827) between the auxiliary shutter
stop (22436) and the right hand wall.
Fig. 19.
On the reverse side of the right hand wall fit the mirror
actuating lever (13362) and the lens lock (13280).
Lubricate with grease. The lens lock pin (13280) fits
into a pin on the mirror actuating lever.
Fig. 20.
Secure the mirror actuating lever (13362) temporarily
with screw (821631) from the other side according to
Fig. 19.
Fit the mirror catch 13356-1 onto the pin. Lubricate
with grease. Connect the spring (816720) with its long
shackle in the hole in the right hand wall and the short
one under the mirror catch.
Hold the blocking lever and spring and install the push
fit cover (30727). Check that the mirror catch moves
freely.
Fig. 21.
Connect the right and left hand walls to the bottom
plate (30686), secure with six screws (820014).
Apply safety lacquer to screw-threads.
Put back the foam plastic pad (22582).
Focusing screen frame (22812)
Put the focusing screen frame back and at the same time
secure the upper part of the inner side cover (22813).
Fit the spring (30755) and secure with screws (829425).
Fit four screws (820015), two through the right hand
wall and two (temporarily) through the left hand wall.
Fig. 22.

Camera body 503CW Reassembly
October 1996Revision 0
4:5
Rear plate (30300)
Fitting the rear plate
Fig. 23 and 24.
Lubricate the shutter driving arm’s shaft hub and the
mirror’s moving peg with grease. Connect the arm and
the connecting rods and fix the rear plate into the
chassis. Ensure that the mirror actuating lever grips the
pin on the mirror frame and that the mirror is
positioned correctly on the upper side of the mirror
support.
Connect the driving arm (22781) to the mirror frame
and secure with a clip (817115). Do not forget the
washer (810649) between the frame and the arm.
Check that the mirror and shutter driving arms move
freely.
Secure the rear plate to the camera using six screws
(820015) and two screws (821017).
Check that the mirror and the auxiliary shutters are
centred and move freely. Adjust if necessary the
brackets (Qty. 4) in the side hinges of the auxiliary
shutter and mirror frame.
If the magazine hook (22423) has been removed, put it
back with two screws (823640) and seal the screws with
loctite.
Seal between the rear plate and both side walls using
black silicone or similar. (Lower and upper end).
Fig. 23
Fig. 24
820015 820017

Camera body 503CW Reassembly
October 1996
Revision 0
4:6
Front plate (30777)
Fitting the front bayonet plate to the camera body
Tension the drive spring by turning the outer gear wheel
clockwise four turns. The front key will be positioned at
the red index dot.
A locking pin can be inserted through the inner cog
wheel and the bracket to prevent the spring from
unwinding.
Install the winding knob V-2206 and tension the gear
housing.
Note! Make sure the aux-shutter is closed at this time.
Fig.25.
Install the front bayonet plate. Ensure that the push rod
(22369) passes through the hole in the front plate and
that the lens lock pin (13280) passes through the
appropriate hole when the front plate is fitted and
secured.
Secure the two screws (823655) in the bottom plate
and seal with loctite. Secure the four screws (820015)
in the left and right hand walls, and the two screws
(821017) in the focusing screen frame.
Remove the temporary locking pin.
Fig. 26.
Intermediate gear (13112)
Remove the screw (821631) and fit gear wheel (13112).
Before meshing, align the gear (22699) with the rear
plate and ensure that the adjustable pawl (13170) is in
the middle cut out of ratchet wheel (20924).
Hold the mirror actuating lever from the inside and
secure the gear wheel (13112) with washer (810532)
and screw(821631).
Fig. 27.
Fit the release bar (30375) and the spring (814512).
Perform the necessary adjustment as described
in section 5.
Fig. 25
Fig. 26
Fig. 27
821631 13112 13170
20924
821017 820015
823655

Camera body 503CW Adjustment
October 1996
Revision 0
5:1
The lubricants mentioned in the text are:
Grease = Isoflex Topas L32
Oil = Isoflex PDP 48
Install the winding knob V-2206 and tension the
auxiliary shutter spring (30384) by releasing the pawl
(20919). Turn the knob clockwise and tension the
spring two turns at this time. Test the camera’s
function.
If the spring is too tight the pressure can be reduced by
operation of the shutter mechanism and then pressing
the signal arm down.
Fig. 28.
Note! Always check that the auxiliary shutter is closed
before turning the winding knob, otherwise there is a
risk that the top flap of the shutter will be damaged
when the mirror moves downwards.
Temporarily adjust the key position by loosening the
screws and moving the bearing bracket (13171) forward
until the key position is aligned to the red index dot on
the front plate. If the adjustment is insufficient
disengage the cogs between the front gear wheel and the
gear wheel (13167). Hold the gear by hand during this
operation so that the drive spring tension is not lost.
Fig. 29.
Loosen the front plate just sufficiently to ensure that the
mesh of the teeth is removed and turn the gear one
tooth at a time.
Retighten the screws.
The camera body should now function normally, i.e.
shutter release and winding on can be carried out in the
normal manner.
Fig. 28
Fig. 29
20919 V-2206
Red dot

Camera body 503CW Adjustment
October 1996
Revision 0
5:2
Focal length
The camera body’s focal length is inspected and
adjusted by using tool V-2229. The focal length is
71.40 mm ± 0.03 mm.
Zero the dial indicator by placing it on surface ”A”.
Mount the front plate ”B”into the front bayonet of the
camera.
Connect the camera to the focal length gauge. Ensure
that the rear plate is flat. In the event of any unevenness
loosen the screws which hold the rear plate and push it
in the desired direction. Place the ruler with indicator
clock onto the gauge and move the indicator around the
periphery of the front plate and check that the length is
within the tolerance.
Fig. 30.
Adjustment is carried out by moving the camera rear
plate forward or backward.
Minor adjustments can be done by striking the front
plate tool with a plastic faced hammer.
Fig. 31.
Tighten up all screws.
Note! The focal length is checked once more when
the camera body is mounted in to the camera shell.
Adjustment of the front key’s angular position
Remove the knob V-2206 and insert the bayonet plate
tool 904644. Mount V-2206 again.
Mount the key inspection tool 902658 (V-2075) to the
camera’s front bayonet plate. Ensure the indicator is
pointing upwards when the camera is cocked.
Fig. 32.
Fig. 30
Fig. 32
"B"
Fig. 31
902658
"A"