Olympus OM-2 Service Manual Part 5 of 5
Contents
1. 5w462 50872 PIo3_LED csod woop Nor ded dover fo Ot tons Onasa dote N TR inan 3 10031 20101 134 SON 137 joo 151 OLAV un 679032 uonsag 10381894 VSV pawog ADO UV 1033 pavog ynoaq9 paadg 1onnug vondag 0151594 TVANVIN e 3 Meter Circuit Diagram CE0555 Base plate B 27IX 135k FAIR 635 SSIR MLA gaza IJK SK 282K Ae ke UN J TET e air Zo 45 Ve Ya Y Y a ore R305 A NW Or Black 4 Synchro Circuit Diagram e a FP x xz 1 125 sec OFF 1 60 sec gt ON sasa 5 Battery Checker Circuit Diagram For oscillation For controlling LED Temperature compensation Vi V2 OFF ON ON OFF From CE0942 base Qs orr on _ oN plate OFF LED OFF ON ON OFF From CE0942 VR base plate mess is2. Counter clockwise turning Becomes slower P Screw CA9102 front leather L Caution Take care not to tighten FP screw too deep because it will be fallen into the inside of the camera body 1126 VI OTHERS 1 Improper battery checker indication Cause Remedy Checkup 1 Improper After removing the whole set of Turn off voltage matching of CE0584 circuit board C from the 2 45 0 04V R202 body remove R202 attached to matching CE0584 and wire it as illustrated re resistor below and select a resistor with c n turn off voltage is 0 1V or more and 2 75V or less which the LED turns off at an voltage less than 2 4V Matching Power Supply a E Digital Multimeter 9 CE0584 circuit board C Resistor Box for meter matching The part wired to the resistor box in the above drawing is R202 which is available in the following 11 types 4700 410 1 16W LED lights ska 2x w i Blinks 2757 Over 0 1v 245 Turns off tang 2 34109 Shutter locks ouurpoonwr Var nv ww 2276 PARTS WHERE OIL GREASE ETC SHALL BE USED CONTENTS Page 1 CEMENT ARALDITE kas awa LEE YA 129 ALON ALPHA eel na 50045380 CEMEDINE 3000RS et ae ee D Ba PLIOBOND MC1770 or EVERSTIC ee ES BELL LOCK SM 136 2 OIL GREASE EP GREASE 3 Sero tT COSMOLUBRIC 142 023P GREASE 143 MOLYCOAT COSMOLUBRIC EE M
3. 3 15V without voltage drop b As the current of about 10mA is consumed when the shutter operates the battery suffers the voltage drop and supplies 3 10V instead of 3 15V Owing to the above reasons the power supply voltage should be set to 3 15V for the exposure meter and 3 10V for the shutter when the constant voltage power supply is used V PERFORMANCES 1 Poor focusing Cause Remedy Checkup 1 Adjust The distance from CA8877 bayonet ment of mount to film pressure plate flange back surface should be 2 Poor focusing in viewfinder A 45 220 02 The distance from pressure plate surface to film rail surface should be B 0 210101 Pressure Plate Surface Bayonet Mount Z EX al Adjustment should be made with CA9106 CA9107 and CA9170 spacer See the OM 1 Repair Manual Surface Select proper piece out of a h series of CA9144 front ring seat and CE0535 back ring seat and adjust focusing Apply pliobond on the side of the ring seat See the OM 1 Repair Manual 20 1 D43 PETAEN 2 WX contacts not conductive Cause Remedy Checkup 1 Conduc CA8602 and CA8603 should be as When tested with WX tion failure follow tester CA8602 and CA8603 between should be conductive at CA8602 x 2 CA8602 should be pushing shutter speed 1 60 sec CE0851 after winding If not bend contact CA8602 or slower and not con piece and 3 ductive at 1 125
4. for M circuit board itself See page 106 This resistor is enough with 500 1Ka because it is a subsitution for MG 48 Name Place Used amp Usage L Remarks KC CE0922D Driver KC CE0920G Driver Used in being mounted to the driver chuck Q 0008 3 06 o To be newly manufactured o Precautions on Usage Since the driver CE0922 is soldered turn KC CE0920G to remove CE0920 upon disassem bling or assembling KC CE0914aG M Circuit Board Adjusting Tool Used upon soldering IC IR 024 and IS 0001Z to M circuit board Usage When this tool is mounted on the M circuit board after inserting each pin of IC into the M circuit board it is automatically set at the optimum height of IC Then it is to be soldered as it were o Mcircuit board and IC should be set with the space of about 0 3mm o If the IC is mounted too high it may cause short circuit between the camera main body die cast and IC So take sufficient care in mounting IC bag OTHERS ceosea i Circuit Diagram LED rag mga Ceas24 RBI w82 Er 255203 F nG b I PAKA pra RSJ B170 x SYNCRO ii corone L J CE050T BATTERY 457x2 SIL ER OCDE H GIB 0 578 e r iso od a y UH a 00 gt CES CEIS 3 t E Shutter Circuit Diagram 2
5. is recommended to tensi n after tentatively tightening the gear shaft Remove CE0502 front plate whole set of meter unit and then whole set of CE0626 bottom plate M unit and thereafter make the repair CA8999 should operate effectively and surely EIL 9 Others 1 Each ASA position of CE0645 AR circuit board 1600 CE0645 AR circuit board 0636 A contact piece 100 Each ASA setting is matched to CE0636 A contact piece The above illustration shows that CE0636 is matched to ASA 100 2 Mounting of CE0635 pulley M 1157 2 Pulley M CA8996 spring gear CE0635 pulley M should be set to 1 1 5mm with CA8996 spring gear as a reference 3 Mounting of exposure meter a ASA 12 Eccentric of CE0630 A lever 2 Center c Engagement of M gear and CA8983 P gear 2 5 teeth d Engagement of CE0633 Q gear and CA9000 pulley gear 3 0 teeth Set CA8981 pulley holder as above and tighten PUK1 7 406SO See ORDER OF DISASSEMBLY 4 Cleaning of CE0547 viewfinder indication plate Use RIGROINE for cleaning Never use mixed solution It can erase the characters EY 1 Viewfinder Indication Plate 5 Constant voltage power supply The reference voltage of the exposure meter differs from that of the shutter because of the following reasons a As the current consumption of the exposure meter is several 100pA the battery can supply
6. sec or CA8603 FX b CA8602 should not project from faster contact the edge of A Lever 1 CE0851 piece ASS Y The clearance between CA8602 CA8602 and CA8603 should and CA8603 should be within 1 0 become conductive after 1 5mm the opening curtain finished running 851 A fitting strip 2 a Kai S should be conductive CASE Hice before the closing curtain CA8603 FX runs and become non P PG O contact piece conductive as soon as the closing curtain starts to ow run Lead wire should be soldered at an angle of 45 2 Conduc CE0842 and CE0843 should be as tion failure follow between CE0842 X 1 CE0842 and CE0843 should have e a clearance of 0 3mm between HK ES and crew of CE0803 gear plate B pieces before winding CE0843 X contact CE0842 CE0843 piece B CE0825 X contact piece A B CE0803 gear plate PAN HK pu 2018N 0 3mm or more 2 CE0842 and CE0843 should not project from CE0825 when winding is done lt Both CE0842 and A CE0843 should not project from CE0825 124 Cause Remedy Checkup 3 CE0842 should be contacted to CE0817 closing claw B and have a clearance of 0 4 0 6 between the metallic dowel of CE0843 before winding 24 26 Lo CE0843 X contact piece B lt E0842 X contact piece A Adjustment is to be made by retight ening PUK1 4 x 1 6SO of CE0842 and CE0843 or by bending CE0842 and CE0843 3 Insuffi cient con
7. 5 Improper changing of shutter speed Cause Remedy Checkup 1 Improper position of CE0552 right side plate After confirming that the roller operates normally strike CE0552 against the post illustrated below and tighten it CE0552 Strike in the arrow direction 2 Improper position of CE0550 roller plate After confirming that the roller operates normally strike CE0550 against the post illustrated below and tighten it Post J CEosso t Strike in the arrow direction 3 Poor insulation of CE0555 circuit board B When CE0546 SL contact piece is attached the insulation should be as follow Between yellow LW and Main Body Between blue LW and Main Body Conductive at B and at other shutter speeds a Between yellow LW and Blue LW Resistance value of each shutter speed is obtained When CE0546 SL contact Piece is not attached the insulation should be as follow Between yellow LW and Main Body Between blue LW and Main Body n oa Between blue LW and YellowLW on This test should be done with the yellow and blue LWs dis connected from CE0591 SW circuit board 118 Cause Remedy Checkup 4 Defective CE0602 B cord 1 ati o N CE0550 roller plate E AK N maa CE0561 stop Replace on re attach CE0602 in the following manner 1 Wind CE0602 cord around the edge of CE0550 roller plate turn
8. OLYCOAT 017P GREASE zs 148 ROCOLPASTE Sa shu A 146 Sign ARALDITE ALON ALPHA CEMEDINE 3000RS PARTS WHERE OIL GREASE ETC SHALL BE USED e PLIOBOND or EVERSTIC PLIOBOND or EVERSTIC 133 PLIOBOND or EVERSTIC e BELL LOCK SM Not necessary on diode side BELL LOCK SM BELL LOCK SM BELL LOCK SM EP GREASE COSMOLUBRIC zi 023P GREASE MOLYCOAT COSMOLUBRIC MOLYCOAT 017P GREASE 145 tb e ROCOL PASTE ROCOL PASTE 147 SPECIAL TOOLS SPECIAL TOOLS Name KC CE0914BG Matching Board Eliminates unnecessary electricity of IC upon matching and check M circuit board Usage See page 106 Place Used amp Usage Remarks KC CE0914CG Cord Aap Used to connect the white LW or circuit board A to the left of SBC at the time of off set adjustment of the comparator of M circuit board See page 104 KC CE0914DG 51K 9 Cord D a Connects the yellow and white LWs when checking if the front casting CE0502 is out of position or checking the operation of M circuit board by itself See page 106 This resistor is enough with 1 57Ka because it is a substitution for AR circuit board CE0645 KC CE0914EG 1Ka Resistor j To be connected to the and terminals of digital multimeter when making the operation check
9. ad the upper part of cord through the lower roller and the lower part of cord through the upper roller respectively in the condition with CE0522 coupling ring placed on CE0502 front plate 2 Thread the upper length through the B spring unit and wind it round B spring plate three winds clock wise with care not to cross and glue there 3 Glue the lower length to CE0635 pulley M Cemedine 3000RS Do not apply Cemedine here When CE0522 coupling ring is struck against the stopper the condi tion should be as shown at left 7 Excessive indication difference between AUTO and MANUAL Cause Remedy 1 Improper adjustment of R306 Replace R306 to have the condition at right Checkup check Points at AUTO MANUAL Shutter Speed F NO 1 30 2 8 1 60 5 6 1 125 11 1 500 11 o Standard 0 3EV for each check point o Set to zero at MANUAL and switch to AUTO and see deviation from the center of each shutter speed value 8 Excessive difference in going and returning meter needle deflection owing to aperture ring Cause Remedy Checkup 1 Insuffi cient tension of CA8999 gear spring When the tension of CA8999 is insuf ficient it may cause excessive unbalance in the meter needle reciprocating movement and im proper returning of cord CA8999 should be tensioned by two winds and replaced if tension is too weak It
10. tact efficiency If the contact efficiency is less than the value described at right when measured by an insulation efficiency gauge clean each contact piece or replace it 1 60 sec at an interval of Ims 60 or higher 1 30 sec at an interval of 2 5ms 70 or higher 4 Check for insulation and continuity Check in the following procedures 1 Check for insulation of FP contact Check with the shutter speed set to in 2 Check for continuity of X contact It should be conductive with 3V when the shutter is released at 1 60 or slower 3 Check for insulation of X contact Set the shutter speed to 1 1 wind the closing curtain midway after the opening curtain run and check insulation 4 Check for switching of X FP contacts Keeping condition 3 set the supply voltage to 3V and switch from X to FP and check continuity of FP contact 1 Should be 30Ma or more at 500V when measured by insulation efficiency gauge 2 X contact should be conductive at 3V 3 Should be 30Ma or more when measured by insulation efficiency gauge 4 X contact should not be conductive and FP contact conductive at 3v nasia 3 Improper time lag of FP contact Cause Remedy Checkup 1 Improper Peel off CA9102 front leather L adjustment around the reset button and adjust of CE0532 by turning the FP screw with screw FP screw driver No 2 Clockwise turning Becomes faster
11. the post and pass the cord through CE0546 SL contact piece 2 Thread CE0602 cord through the roller two positions of CE0561 stopper and then through the roller two positions of CE0522 3 Thread through CE0546 and then through CE0557 cord spring and wind two times 4 Engage the cord in CE0521 dial gear and place it on CE0502 front plate to decide the cord length and then glue to the cord winding portion of CE0557 cord spring Then cut off surplus length 5 Referring to the checkup method at above right decide the position of CE0546 and glue the cord to CE0521 dial gear CE0502 B cord 1 CE0521 dial gear CE0546 SL Contact cord censal Gluing Cemedine 3000RS CE0546 SL contact piece should be in the posit on shown below when the shutter dial is set to 1 1000 Approx 0 8 Gluing of the cord to CE0521 dial gear Drip 2 3 drops of Cemedine 3000RS into the gluing hole of CE0521 The gluing area should be more than 4 ind less than 90 20 30mm 1ece as illustrated below CE0537 ring 225 or more 45 o asie 6 Improper coupling of CE0522 coupling ring Cause Remedy Checkup 1 Defective CE0603 B cord 2 Wind three times clockwise with care not to cross dE If CE0522 coupling ring operates normally check CE0603 When it is found defective replace or adjust it in the following manner 1 Thre
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