Olympus OM-2 Service Manual Part 4 of 5
Contents
1. Cause Remedy Checkup 1 Tilted meter needle Re tighten two PUK1 7 x 250 screws of the meter so that at either one of the 4 or side the meter needle is rectangular to the side of the mask when an edge of the needle is aligned to the center of the triangle mark Py sd xposure Meter y The angle should be 90 either on the or triangle center 2 Length of The length of meter needle should be meter needle as shown at right 2 SEs Re tighten PUK1 7 x 250 of the meter n 3 Working The meter needle stop positions at range of AUTO should be within the range meter needle shown at right Adjust by bending CE0641 needle holder Take care not to lose CE0622 teflon tube 4 Vertical displacement of meter needle The meter needle must not contact CE0547 viewfinder indication plate prism etc Adjust by bending the meter needle 0547 4r 4 Improper position of CE0547 viewfinder indication plate Cause Remedy Checkup 1 Improper After correcting the tilting with B a Tilting adjustment eccentric of CE0538 slider adjust of Beccen the position with character eccentric dade em pene tric and of 0595 character lever cie character b Position at AUTO eccentric CE0538 slider T Een 0547 indicator plate The B eccentric adjustment should be made with CE0502 front plate2. hitting pin of CE0805 and the T pin of CE0820 TR plate PS tting Cam CEos05 E0820 TR plate Hitting Pin Locate the screw head of eccen trics in the arrowed direction d Adjust the clearance between _ After winding carefully 0803 gear plate B and CE0816 return CE0816 closing closing daw A claw A in the spring Loosen CE0803 and fix it in such a_ 078 effecting direction degree that it is contacted to CE0816 Improper if 0816 moves o by the pressure of 0842 X con even slightly when it is tact piece A pressed against MG Make re adjustment See next page 0802 gear 1 4 2015 gear plate fastening screw 0803 gear plate 0816 closing claw 0842 X contact piece 218815 Should not move when pressed in the arrow direction after winding See Section II 12 1 d we mov 0802 gear y A IAN CE0803 gear plate B S Should be in contact slightly just touching See Section I 12 1 d 0821 T pin and CE0930 T holder are for the adjustment of higher shutter M Circuit Board lt 3 Should be parallel and closely in contact Other VRs should not be moved 0829 speed gear o 5 imer 400 VR for AUTO adjustment speeds at MANUAL See Section 6 3 4 for the position of each shutter speed hole Cause Re
3. DN D Replace 15001 2 or CE0914 Sj XOX Sh See Adjustment 6 hours te Approx 6 hours e 11 The variable resistor should be locked using adhesive after adjustment 12 Never fail to ground the pincette tweezers and the repairman s body when touching the trigger switch contact piece and SBC 2 Adjustment of CE0914 M circuit board Items Method Remarks 1 Prepa a Remove 0951 bottom cover The powder switch should ration 0955 mat and CE0503 top plate have been turned on before wiring and must not be turned off and on b Release the shutter and lock it with the battery unloaded Main IHE tic pewerisuppiy de e switch and trigger switch ON Siea te mE Uie Set 0591 SW circuit board switch is operated high to AUTO voltage is generated d Set the power voltage to 3 1020 04V e Make the wiring as follow t CE0591 SW circuit board to AUTO Power Supply Digital Multimeter Reverse and when using g bulb voltmeter Meter mA To the ground the spring of battery compartment Matching Board 21020 Items T Method Remarks 4 When CE0502 front plate is removed 1 Connect the clip wired to the battery compartment to the black LW on the bottom 2 Advance the wind lever and turn on the trigger switch When 914 is to be adju
4. Caution Make the test with CE0546 SL contact piece installed Exposure Meter Circuit Diagram and Role of Each Resistor 1 Circuit Diagram Shutter Side as Black or Pink 2413 Exposure Meter MDS Revised R302 R2 R303 R3 R304 2 Role of Each Resistor R301 For correction of low luminance side EV 8 0 R302 For correction of low luminance side EV 4 8 27 R303 For correction of high luminance side EV 11 12 R304 For correction of high luminance side EV 14 16 12Ka R305 Resistance value is same as at shutter speed of 1 60 sec 68 R306 For correction of internal resistance of the meter movable section 2 4Ka Comparison with MDS MDS Revised MDS Coupling Aperture Ring Cord Cord Shutter Dial Current CE0555 Cora circuit board B Movable Section Deflection Angle of BV 2 8 55 15 XS Check Point ASA 100 BV SD FNO 16 1 500 11 14 1 125 11 11 1 60 5 6 8 1 30 2 8 4 1 2 2 8 niles Matching Resistance and Change in Meter Deflection Em 14 0 value R32 small DRLLIL ji i R value large 2 I 1 0 op a 1 value A303 1 T1 large 2 ur 20572 3 Improper position of meter needle
5. removed Adjustment of character eccentric of 0595 character lever 0595 Character Eccentric When adjustment only for character eccentric is to be made remove CE0503 top plate the eccentric will be seen underneath 591 SW circuit board Use RIGROIN or DAIFLON 53 for the cleaning of CE0547 Never use mixed solution It may be erase the characters Mask Center At OFF R CE0547 should not be seen 2a
6. 11 Adjust by changing resistor R303 of 0591 the adjustment is impossible with R303 at minus side adjust to 0 1 0 2 with R301 Thereafter check BV 8 and adjust to 0 1 0 1EV with R304 to compensate for the above After the adjustment reconfirm BV 4 and make the adjustment at BV 16 See the above illustration for the position of each resistor Set the camera as follow ASA 100 Shutter speed 1 60 sec At BV 11 CE0503 remove 0 1 0 1 f stop F5 6 jig lens Set to MANUAL 0503 not removed 0 0 1EV Cautions 1 The lens should be closely in contact with diffusion plate 2 Extraneous light should not enter 4 Detective at high luminance BV 16 Adjust by changing resistor R304 of 0591 SW circuit board See 2 of preceding page for the position of resistors o Set the camera as follow ASA 100 o o At BV 16 Shutter speed 1 500 sec f stop 11 jig lens Set to MANUAL CE0503 removed 0 1 0 1EV CE0503 not removed 0 0 1EV 2119 Cause Remedy Checkup 5 Meter matching BV 1 Preparation for matching Constant voltage should be 3 15V 0 005 KD Jiglens pentaprism and focusing Screen should be attached Q Set the Manual Take care not let light other than that from the luminance box into the cas 0 Turn the shutter dial from 1 1000 side KS Turn the t stop
7. ds 1 4 Left Pin of SBC 1 2 in Tr adjustment T Pin 7 97 0 gt p T Holder Contact Piece Adjust by bending T contact piece T Contact Piece o When fluctuation becomes excessive due to tampering with contact piece replace and adjust it After adjustment by bending there should be a clearance at second step of opening claw between T holder and T contact piece B o When wound T contact piece B should not hit T pin amp Adjustment of mini shutter speed Adjust hitting pin with a special screwdriver Bend 2 tip Hitting Pit SP wdriver 3 Special sere Tl High ASA Becomes worse as Particular part is defectiye ASA value gets higher Check ASA switching Check followability of contact piece A Check the OFF set Check resistor of Adjust comparator AR circuit board Replace GEAR A Replace M circuit board or IS 001Z Check against dust Clean with A cam removed Replace AR circuit board When shutter speed changes gradually by shutter release ENTIS e D Check of OFF set of preamplifier Tr is ON at AUTO P PN Should be 1 5mV or less o Adjustment should be made to 40 5mV or less The power supply should be connected Rigit Pin with black LW Otherwise load batteries Digital Multimeter 4 a Aa E after locking the shutter Caution For checking ma
8. 9 Shutter not released mechanical fault Cause Remedy Checkup 1 Defective a There is no backlash in the left and right direction of CE0870 M mirror movement frame Loosen the screw of side plate and adjust the position 2 Insuffi a Disengaging force of CE0832 cient CE0886 opening claw A excessive release plate B b 886 operates improperly force ED 3 Insuffi Tensile force of CA8447 M cient CA8439 spring is insufficient S release pore Replace it b CA8439 rubs against the body Adjust the position 4 Excessive disengaging force of 0885 release plate Absence of lubricant at the hooking portion with CE0886 re lease plate B _7 CE0886 release plate B Apply Rocol Paste to CE0885 for about Imm b Tensile force of CE0891 release spring is excessive c Surface finish accuracy of the hooking portion of CE0885 is insufficient CE0885 release plate A EUM Cause Remedy Checkup d 0885 operates improperly 0885 should operate smoothly and return with the spring force 10 Defective shutter speed at AUTO Cause Remedy Checkup 1 Defective 0942 switching board a Poor soldering of CE0942 b AUTO MANUAL switching is defective 2 Defective 0914 circuit board CE0935 K contact piece is disconnected b IC
9. Measure 1 8 sec high shutter See Specification 1 1000 sec speeds curtain speeds and mini Standards on the next and 1 500 shutter speed for more than 5 times page sec 89 curtains Specification Standards for Manual Shutter Speed Shutter Curtain Speed The curtain speed should be 11 5 0 1ms for both opening and closing ns The difference in the curtain speed at 1 1000 sec should be 0 990 15 and the opening curtain should be faster 2 Exposure Time Shutter Speed Unit Guaranteed Quality Standard 1 1000 ms 871 1148 ms 0 2EV 1 2 500 436 574 r k 1 4 Esur C 218 287 1 8 az 109 144 1 15 62 9 54 5 71 8 1 30 2 t 27 2 35 9 5 1 60 ise P 13 6 17 9 1 125 TB 6 81 8 97 is 1 250 ari 3 40 4 49 a 1 500 1 985 1 89 2 40 30 3EV 1 1000 0 98 0 77 1 43 0 1 0 45 3 Exposure Uneveness At 1 1000 the difference between and MIN of the channels B and C should be 0 4EV or less in the range b At 1 300 0 3EV or less c At1 250 1 1 0 15EV or less 4 Fluctuations Should be 0 53EV or less in the 1 1000 range b Should be 0 3EV or less in the 1 500 1 1 range 5 Mini Shutter Speed a 0 5ms or faster for all channels B and C b Exposure time should be 0 5 1 42ms for channel B c Exposure uneveness should be 0 6EV or less 90 13 Automatic shutter speed adjustment Cause Rem
10. ak The attractive force related parts should be 60grs or more The surface of CE0811 attractive at 1 8V plate is soiled or scratched Clean or replace CE0811 Note 0811 and CE0813 are finished into a mirror surface te increase attractive force The force lowers considerably if the surface is smudged or scratched See Section 3 2 4 1842 Cause Remedy Checkup 4 Defective main switch a CE0871 and CE0872 M contact piece 1 2 are contacted improperly See page 74 5 Defective M circuit board a Poor soldering on FET Correct soldering b 0925 speed plate and CE0915 shutter speed circuit board are contacted improperly Clean CE0915 or replace CE0925 c Pattern to K shaft is broken The soldered spot of white LW coming from CE0915 d Shortcircuit between CE0913 switching plate 3 and C101 denser for MANUAL 0935 K contact piece is detached 12 Manual shutter speed adjustment Cause Remedy Checkup 1 Prepara tion for adjustment CE032 E0526 S contact piece a Power supply voltage is 3 10 0 04V b When 5 top plate is removed insulate CE0524 S base from 526 S contact piece 4 S base Silver oxide batteries may be used as the power supply m Insert piece of card board etc 4 E Cause Remedy Checkup c Adjust the eccentrics of
11. an 30 seconds and less than 60 seconds O Dark condition means the state that the body cap is applied and the eyepiece frame is faced downward Remove bottom plate desolder brown LW and check 1 8 Remove the resistor for auto limiter and replace it by 1 resistor Use the soldering iron with a pointed tip 8 Protection against leakage current from M circuit board 2 100 0914 M circuit board 1 Precautions for repairing CE0914 1 As the ICs blow out by static electricity be sure to ground the work desk soldering iron pincette nipper operator s body etc when the IC and FET are handled as a single body The pins and 6 of MOS FET are particularly weak and may be destroyed by static electricity of 100V Generally the human body is supposed to have static electricity of 1500 10000V 2 Use rubber fingerstalls Use fingerstalls on the thumb forefinger and middle finger of both hands 3 sure to use silver containing sparkle solder Senju Kinzoku Kogyo S 256 0 86 for soldering Since the pattern of CE0914 contains silver if an ordinary solder is used the silver component may be absorbed into the solder in a long period and the solder may become unstuck 4 Use non acid paste and clean it with DAIFLON S It is sold under the name of Du Pont FREON TE in the overseas market Chemical Formula C2CL3F3 C2H2O0H C2CL3F3 96 CaHgOH 4 5 As electrical elemen
12. edy Checkup 1 Prepara a Manual shutter speed adjustment Silver oxide batteries tion for should have been completed may be used as the adjustment power supply M roe EROR When using a constant voltage power supply NEVER turn on and off ec Mountan 5 6 jigdena the power switch after e the power supply is d Install CE0955 mat wired to the camera e When CE0503 top plate is removed insulate the 2nd synch terminal 2 Adjust Make the adjustment with the 4000 Within 0 0 1EV ment at VR of CE0914 M circuit board to BV 11 0 0 1EV FK lt M S ue crt 4002 VR for AUTO Do not move other VRs 3 Adjust BV 14 Within 020 2EV ment at BVs BV1 Within 0 0 4EV 14 and 15 4 Adjust Within 0 0 ment at BVs 8 and 4 9 Cause Remedy Checkup 5 ASA Check at BV 8 conversion accuracy ASA 2 5 100 200 400 1600 Accuracy EN i 020 25 i 25 mee 020 45 0 2 0 5 0 5 0 5 Stage hoo tev or ranr M 5 mei Difference greater 6 Check of Remove the battery compartment The current should be current cover and place an ampere meter 9mA or less at AUTO consumption between the bottom plate and the BV 4 and 13mA or less battery at Bulb B 7 High This is caused by displacement of luminance OFF set of 0914 M circuit EV faulty at board Readjust the OFF set high ASA Then conduct the manual shut
13. ending old er Coarse adjustment 1 96 0 1ms Adjust to 2 0 5ms coarsely with CE0830 T holder and then make fine adjustment with 0821 T pin See Section 6 2 for the locational relations between CE0832 CE0831 T contact pieces B and CE0830 Caution 0830 T holder is easy to become loose and thus care should be taken when bending d Inspect 1 8 sec if 1 8 sec is out of 125 5ms re adjust with the 30Ka VR and then adjust 1 500 sec again 208812 Cause Remedy Checkup 5 Check of a If the difference is greater than See Section II 12 1 d 1 1000 sec 1 1000 between 1 500 sec and 1 1000 sec Minimize the engagement and clear ance between CE0816 closing claw and CE0803 gear plate B Make the engaging extent to 0 4 0 5mm b When the difference is smaller than 1 1000 due to smaller mini shutter speed Adjust with the hitting pin of CE0805 See Section 12 1 c When the difference between 1 500 sec and 1 1000 sec is smaller than 1 1000 6 Adjust Set to the AUTO mode and short Should be within 0 5 ment of mini circuit yellow and white ASA lead 1 42ms shutter wires by placing a 1K 2 resistor Make 0 8ms as a speed in between target Fluctuations are accept to CA8547 gear A able if they are within the shutter speed H standards CEO0805 N NES Hitting Pin The hitting pin is an eccentric 7 Check of
14. h 10K strap eyelet turned on before wiring and must not be turned off and on once wired Note 2 CE0951 bottom cover CE0950 mat and CE0503 top plate should be removed Digital Multimeter Power E uy or Bulb Voltmeter y Ampere Meter To the ground the spring of battery compartment 5 Disengage CE0931 T contact piece as shown below Matching Board When 0502 front plate is removed simply release the shutter 0930 T holder Ye CE0821 T CE0932 T 0931 T contact piece A contact piece B 205 Checking Items Checking Procedure Remarks 2 Check of automatic operation When 0502 front plate is removed 0 Connect the clip wired to the battery compartment shown in the preceding page to the black LW on the body bottom _Shortcircuit the white LW and yellow LW of CE0914 M circuit board by means of a resistor of about 50Ka When 0914 is to be checked as a single body Shortcircuit and of the digital multimeter or bulb volt meter by means of a resistor of about 300 1 Shortcircuit the white LW and yellow LW of CE0914 by means of resistor of about 50Ka Connect the clip wired to the 2nd synch shown in the preceding page to the purple LW of CE0914 8 Connect the clip wired to the battery compartment to
15. heck main switch and 1V change 941 Checking of circuit operation Checking by current comsumption MG ON 8 9mA OFF 11 13m Shorting part of MG 10 sensor and S base MG coil end and body Purple LW and body Others Check of accurate Auto Manual switching Check contact of K contact piece at 5 lever switching forme Sts Go Shaft k continui 3 Dx Contact Piece 9 Check continuity by tester 10x or 1x At AUTO At MANUAL Tr contact disconnected or short Mat Short lt A T Contact Piece A Disconnected D Disconnect white and yellow LW from circuit board and connect 50K resistor in between Yellow di Solder or bond Check 1V Sr Left Pin 0 99 0 01V Set SW circuit board to AUTO Battery Black LW 7 high luminance or Check at MANUAL Adjust RV101 Check speed resistor Clean speed circuit board Y Y Replace CE0925 or speed circuit board T Check mini shutter Replace M circuit board Analyse or dismantle PETES D Adjustment of RV101 AUTO yra Check of speed resistor Set selector switch to AUTO and measure between left pin 1V of SBC and MANUAL pin 1 1000 12 11500 24 1 280 48 MANUAL Pin 1 128 96 1 60 182 1 30 384 ins 2 M68 Ohm Meter 1
16. is defective c SBC is defective d Poor soldering on FET 3 Defective 0645 circuit AR board 0636 and 0637 A contact piece 1 2 are shortcircuited b Resistors of CE0645 is short circuited with body c 0630 A lever 2 is submerged 4 Defective 0885 0886 releasing plates gagemei en nt Bend the following condition a Insufficient charge due to im proper adjustment of CE0886 When the wind lever is advanced and CE0886 is set to the Ist step of 0885 there should be 0 2 0 4 mm allowance When wound CE0886 should surely hook on the 1st step of CE0885 with the allowance described at left There should be allow ance between CE0886 and the body maat 11 Defective shutter speed at MANUAL Cause Remedy Checkup 1 Defective a Poor soldering of CE0942 0910 3 switching Solder it sufficiently plate of CROMA b CE0910 operates improperly switching board At MANUAL At AUTO Clearance should be 0 5mm or less 0916 cam shaft Hole of M Circuit Board As seen from lower side Bend and adjust CE0910 to have the above illustrated condition Bending and adjusting portion 0 37 x Switching plate 1 Switching plate 2 2 Defective a 0886 is charged insufficiently CE0885 0886 3 celesus See Section 10 4 plates engagement 3 MG a MG attractive force is too we
17. medy Checkup 2 Tempo Set the shutter speed to 1 8 sec The curtain speed should rary setting See Section II 6 3 d if the shutter be 11 5 0 2ms for both of curtain dial is not attached the opening and closing Speed Turn 8531 tension nut of sylinder shafts C amp D to have the The speed of opening curtain speed described at right curtain is recommend See the OM 1 Repair Manual ably faster 20 1 018 3 Setting Adjust to 125 5ms with the 30K n 125 5ms to 1 8 sec VR of CE0914 M circuit board Adjustment for lower speeds e S o c ET Cause Remedy Checkup 4 Adjust ment of 1 500 sec a Verify the difference between each shutter speed of 1 500 1 1000 and 1 250 2ms between 1 500 sec and 1 250 sec ims between 1 500 sec and 1 1000 sec Note If the difference is less 2ms between 1 250 sec and 1 500 sec it is acceptable if there is not lms difference between 1 500 sec and 1 1000 sec Influence of mini shutter speed 0 5 1 42ms at AUTO b Adjustment of curtain speed at 1 800 sec Adjust as described at right with CA8531 11 540 1ms The opening curtain should run faster than the closing curtain The difference should be 0 15mis or less 0932 T contact piece 0930 T hi c Adjustment of 1 500 sec shutter speed 0931 contact piece A CE0821 T pin Fine adjustment Correct by b
18. of the jig lens from F16 side Combination and Reference Value ASA S S FNO Matching Resistance Reference EV 0 1 100 1 2 2 uso 2 Eccentric of A Lever 30Ka 0 1 0 1 1 8 8 6 1 60 303 302 12Ke 16 i s0 11 304 27 Note zero with CE0503 unremoved 2 Matching procedure 0 Adjust the meter needle zero position Set to BV 4 and adjust with the eccentric of A lever If adjustment by lever 2 is inef fective slightly move the position of CA8981 pulley holder See Reference Resistance The reference is 0 1EV with CE0503 removed and is See above table for combination of camera settings 0 1EV when 503 is removed ias Cause Remedy Checkup See Section IV 2 2 Adjustment at BV 8 Set the luminance to BV 8 and adjust by changing resistor R301 of CE0591 SW circuit board 3 Re confirm BV 4 8 Adjustment at BV 11 Set the luminance to BV 11 and adjust by changing resistor R303 of 0591 When R303 adjustment is ineffective at minus side adjust to 0 1 0 2 with R301 Check at BV 8 Compensate the value added by the above adjustment with R304 8 Check at BV 4 2 Adjustment at BV 16 Set the luminance to BV 16 and adjust by changing resistor R302 of 0591 6 Confirm at BV 16 BV 4 See the table in the previous page for c
19. ombination of camera settings 0 1 0 1EV with CE0503 removed 0 140 1EV with CE0503 removed 0 140 1EV with CE0503 removed 0 140 1EV with CE0503 removed 0 1 0 1 with CE0503 removed 6 Defective resistance of CE0555 circuit board B Each resistance value should be within the range shown below If the resistance value becomes out of the range replace the whole set of 0555 121098 7654321 The resistance values should be as indicated in the table next page when confirmed with a tester digital after CE0546 SL contact piece is mounted Wire the yellow and blue LWs to the digital multimeter erat Cause Remedy Checkup Insulation check Resist S S ance Tolerance Range a Between yellow LW value and die casting of CE0502 front plate Hino 77 b Between blue LW and 2 1 500 298 283 312 9 die casting of CE0502 3 1 250 143 138 8 150 1 fotherthan ACD x A c Eyelet hole of CE0555 4 MES pere circuit board B and die 5 1 60 7 Meitsi casting of CE0502 other 6 1 30 57 3 54 4 60 17 oo K d Solder of 055 T ans jene ismod the die casting of CE0502 8 1 8 41 3 39 2 43 4 other than at B 9 1 4 136 2 34 4 38 0 10 392 Moo iSi When the shutter dial is ur it es 27 26 30 14 set to blue LW and nz die casting of CE0502 should be conductive
20. ot use adhesive because it is ineffective with teflon 2 The mter needle should not get stuck with the shutter dial set to 1 2at AUTO EV 8 ASA100 Check by shifting the switch lever from OFF to AUTO and vice versa mrotia 2 Indication accuracy improper Cause 1 Zero point of meter off positioned Power voltage is 3 15 0 005 Remedy Checkup 1f off positioned when confirming in the manner described at right adjust as follow 1 Coarse adjustment a Preparation for adjustment 1 ASA 100 2 f stop 2 8 3 Current 1219A 4 Set the eccentric position of A lever to the center and do not use it in the coarse adjustment Exposure Meter Eccentric of A Lever 9 Slitting faces slightly upward 5 There should be about 1mm clearance between CA8997 spring gear and CA8978 lower boss b Adjustment Loosen three pulley screws fixing CA8981 pulley holder to adjust by slightly moving CA8981 When zero point is to side Turn the pulley clockwise When zero point is off to side Turn the pulley counterclockwise 9008 pulley screw 1 Disconnect the black lead wire of the meter movable section from 0591 SW circuit board 2 Set the camera as follow 1 ASA 100 2 wires of CE0645 AR circuit board 2 f stop 2 8 3 Connect the blue lead wire of the resistor box to the black lead wire of the meter movable sec
21. pli fier 4 Offset 1 The switches on the matching When the OFF set value adjustment of board are set to 5 and 7 is out of 1 5mV preamplifier measure two times at 2 Adjust to 0 0 5mV or less with every 6 hours should the OFF set VR 2Ka for the be within 1 5mV preamplifier See Section 1 10 5 Offset 1 Disconnect the clip from the adjustment of left pin of the right side SBC comparator 2 Connect the left pin of the above SBC with the white LW of CE0640 circuit board A underneath the exposure meter by means of an LW with a clip at each end Take care not to shortcircuit the white LW 3 The switches on the matching board are set to 5 and 7 4 Adjust to the current changing point using the OFF set VR for comparator 10 0 Approx 8mV gt 12mV When the 914 is Checked as single body 4 5mA gt 12m Adjustment is completed 104 3 Operation check of 914 M circuit board Checking Procedure Remarks Items 1 Prepara 1 Before starting the operation Note 1 The power switch tion check confirm that CE0914 is should be previously properly adjusted See Section 2 0914 2 Release the shutter and lock it with the battery unloaded Main switch turns on Adjustment of 3 Set the power voltage to 3 10 0 04V 4 Make the wiring as illustrated below resistor of the 2nd sync
22. sted a single body 1 Connect the clip wired to the strap eyelet to CE0920 sylinder of 0914 2 Connect the clip wired to the battery compartment to the black Lw 3 Turn on the trigger switch 4 Turn the cam shaft to AUTO side See Section 3 2 Note a The wiring of SBCs should be as above b Ampere meter of 1 15mA is most recommendable but a tester of DC50mA range is acceptable 2 iv adjustment IL Set switches of the matching board to 5 and 7 respectively b ASA 12 Adjust to 0 99 0 01V with the VR for 1V 1 2Ka 0 99 0 01V at above wiring of the digital multimeter The ASA rating is irrelevant when CE0502 front plate is re moved and CE0914 is to be checked as a single body For comparator OFF set For preamplifier OFF set Each VR is as above 3 Elimina tion of static meter to of the voltmeter When electricity from each part 1 Connect of the digital multi bulb voltmeter is in use of the bulb voltmeter to of the volt meter and to respectively 4193 Items Method Remarks 2 Turn the Switch 1 in the se quence 7 gt 6 gt 1 Turn the Switch 2 in the sequence 5S 432 3 Turn the Switch 2 in the se quence 23 3 gt 4 5 Turn the Switch 1 in the sequence 196 gt Note The SW circuit board should be surely set to AUTO upon the OFF set adjustment of pream
23. tching board may not be used But it should be used for adjustment Adjustment of comparator Comparator Adjusting VR After setting to B turn it from the film side 5 ow Preamplifier OFFsetting VR S Check of contact piece A follow ability Contact piece A should be in contact with AR circuit board by spring pressure even when the contact piece A is moved slightly up and down e Check of resistor of AR circuit board Disconnect white and yellow LW apply ohm meter and check while turning A cam Oss Resistance Value ASA 1800 800 400 200 100 so 25 12 0 64 o2 179 3 58 7 16 14 3 28 6 57 2 Removal of A cam a Remove C ring Turn it clockwise about 30 b Loosen A contact piece fastening screw left hand screw and remove the contact piece from AR circuit board Remove A cam Precautions for assembling a lever should be brought to bear on the side surface of the A cam Displace A lever outwardly and mount A cam in position e b Tighten the screw taking care to the contacting state of A contact piece 159912 60 sec or less W disconnected Replace M circuit 30 60 sec acceptable Replace resistor Confirm shutter can be released D Checking Mirror should flip down after 60 seconds or longer when shutter is released after dark condition of 3 minutes Acceptable if the mirror lowers after longer th
24. ter settings speed adjustment and subsequently auto shutter speed adjustment See Section of Adjustment of 0914 OFF Set See Section of Adjustment of Manual Shutter Speed 92 14 Diagnostic chart for defective shutter electronic parts Main possible causes and diagnostic procedures to locate defective parts are given in the following charts Interpretation of Chart and Cautions 1 When each diagnosis check point is normal go downward go to the lateral step to right or to left following the arrow mark if abnormal 2 The number in above the check point describes caution method adjustment etc below the chart 3 For other procedures see OUTLINE OF REPAIRS aag Shutter is left opened both AUTO and MANUAL 5 With circuit ON Check circuit Operation Shutter left opened Shutter left opened only in MANUAL only in MANUAL Check by switching AUTO and MANUAL Check short of MG Check attractive plate operation Dismantle main body Replace attractive plate Tr contact is disconnected or short Check with 50K pplied between white and yell LW Check shutter speed resistor heck of shutter speed circuit board White and yellow LW disconnected broken soldered poorly Replace M circuit Check A contac and AR circuit board Repair C
25. the black LW of 0914 5 Connect the clip wired to the Strap eyelet to CE0920 sylinder of 0914 1 The switches on the matching board are set to 5 and 7 2 Set the SW circuit board to AUTO 3 The following conditions should be obtained when trigger switch is turned on and off When 914 is a single body Insert a thermo constrictive tube or similar material between 0914 and cam shaft as shown below to set to AUTO 1067 Checking Checking Procedure Remarks Items TrSW ON CE0914 M circuit board Digital multimeter 4 g _ or bulb voltmeter 2 29v 416 Ampere Meter Approx 8m d TE SW OFF Thermo constrictive Tube SPY Digital multimeter 4 E or bulb voltmeter Cam Shaft Ampere Meter Approx 12mA 3 Check of 1 The switches on the matching manual board are set to 5 and 7 operation 2 Set the SW circuit board to MANUAL 3 Make the same operation as 3 above When same values as in AUTO are obtained normal IV EXPOSURE METER 1 Meter needle stuck Cause Remedy Checkup 1 Discon Teflon tube CE0622 inserted into 1 One CE0622 should nected the needle holder may become be provided on the lower 0622 detached luminance side teflon tube After taking out the fallen tube from inside the camera insert a new tube into the needle holder without applying adhesive Cautions O Take care not to deform needle holder Do n
26. tion Connect the white lead wire of the resistor box to of the ammeter and of the ammeter to the camera body to take the earth 4 Adjust the resistor box to 121 The meter needle should then be within the following range power voltage is 3 15 0 005V o 0 Reference 010 009 2 108 Cause Remedy Checkup Eccentric lever 2 2 Fine adjustment Set the camera as described at right and adjust by moving the eccentric of CE0630 A lever 2 4 Exposure Meter ASA 100 Shutter speed 1 2 sec stop F2 8 jig lens Set to MANUAL 66890 4 When 0503 top plate removed 0 1 0 1EV When CE0503 not removed 0 0 1 Cautions a The lens should be closely in contact with diffusion plate b Extraneous light should not enter 2 Defective at low luminance BV 8 Adjust by changing resistor R301 of 0591 SW circuit board After the adjustment confirm BV 4 and adjust BV 11 and 16 Set the camera as follow ASA 100 Shutter speed 1 30 sec stop Set to MANUAL 2 8 jig lens At BV 8 CE0503 removed 0 1 0 1 CE0533 not removed 0 0 1EV Cautions a The lens should be closely in contact with diffusion plate b Extraneous light should not enter 2108 Cause Remedy Checkup 3 Defective at high luminance BV
27. ts are weak against heat avoid to heat them for long in soldering The standard time for soldering is 3 sec for one spot 6 Dust and smudges particularly on flux and paste should be absent because it lowers insulation resistance Particularly insulation resistance of 1012 or greater is necessary for lower luminance levels When smudged brush and clean with DAIFLON 53 and then check with the SZ binocular stereo microscope Check particularly the pins of SBC trigger switch and auto side contact piece of cam shaft etc 7 When the constant voltage power supply is connected never turn on and off the power switch Turn the power switch after disconnecting the wire of CE0914 M circuit board Turning on and off of the power switch momentarily generates 60 70V 8 Confirm grounding of each component once a day or at the start of working hours by means of a tester Acceptable if the tester needle deflects by the extent equivalent to the voltage of wall outlet AC between the grounding wire and the AC wall outlet 9 special care not to heat teflon over 450 C to prevent generation of toxic gas 101 10 When the OFF set of the preamplifier is changed beyond 1 5mV adjust eo it to 0 5mV or lower thereafter repeat the OFF set checking two times at a 6 hour interval The measured value at each checking should be within 1 5mV If adjustment is impossible replace the IC of 15001 2 or 0914 Acceptable
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