TABLE OF CONTENTS . Introduction a. Classification of parts numbers of Product No, 23111 b. The structures and the functions c. Electrical timing switch mechanism Assembly and adjustment Bounce prevention mechanism Magnet actuator plate Timing contact switch lever assembly Shutter rod Timing switch assembly Magnet Adjustment of mechanical exposure time T. Adjuster Power switch Memory block Switch supporter plate .
2/19 1. INTRODUCTION This service manual is prepared for servicing Product No. 23111 SAHIB PENTAX ES. SAHIB PENTAX FES is the developed camera from SAHIB PENTAX SYMPTOMATIC (Product No, 23102). More than 50% of the parts of ES are common with those of SYMPTOMATIC, ES consists of 15 kinds of mechanical and electronica structures. Each structure has each Parts number and Description starting from Al, BI, Cl, wwwemnn. In this service manual, exclusive characteristic features of ES are described later.
a. Classification of parts numbers of Product No. 23111. Mechanical and electronica structures are classified as follows: A. Body proper and cover parts B. Mirror housing C. Film winding mechanism D. Film rewinding mechanism E. Shutter mechanism re F. Switch mechanism I. Electronica timing switch mechanism K. Aperture variable resistor L. Optical parts M. Prism seat N. CdS mechanism O, Ammeter R. ASA volume resistor 5. Magnet T.
4/19 * Timing switch This is used for deciding proper exposure time of electronic shutter coupling with shutter mechanism and electronic circuit of exposure time setting. This feels starting time of shutter mechanism, and converts it to electric signal, after that starting time is formed in time controller circuit, This is called as timing switch, TIMING SW, Fig.
* Memory block In formations to decide exposure time are required very quickly within the period between the time after release button is depressed in cocked condition and the time before the mirror begins to {lip up. Correct information are sent to the circuit steadily, especially in case of varied light quantities with stopped down aperture, or in case of no exposure is given to CdS cell with mirror-up, after camera mechanism begins to function with depressed release button.
2. ASSEMBLY AND ADJUSTMENT SAHIB PENTAX ES is similar to SAHIB PENTAX SYMPTOMATIC {Product No. 23102) mechanically. There are many adjustment ways for assembling SYMPTOMATIC camera, but these adjustments are already described in SAHIB PENTAX SYMPTOMATIC SERVICE MANUAL, ES camera includes some exclusive mechanical and electronica structures, In the following article, only the exclusive assembly and adjustment are described. > 3.
5. TIMING CONTACT SWITCH LEVER ASSEMBLY (0-E151) Timing contact switch lever assembly (0-F151) is installed to the shaft where Magnet actuator plate assembly (0-E 13) and Intervention stopper (E152) are installed. Timing contact switch lever assembly (0-E151) should be installed horizontally, if the tips of it touch to the other parts, shutter exposure times will show uneven. Correct it by bending with tweezers.
7. TIMING SWITCH ASSEMBLY (0-11) In cocked condition, Timing switch assembly {0-11} is installed, inserting the tip inner than the shaft of Timing contact switch lever assembly {0-F 151). Two small washers are used underneath Timing switch assembly (0-11) to prevent the basic material from breaking when fastening the two retainer screws. BASIC MATERIAL Fig.10 Adjustment : In cocked condition, connect the lead wires soldered at Timing switch assembly (0-11) to circuit tester.
8. MAGNET At first, install magnet adjusting screw (A138) to camera body, making the clearance at one and a half reverse turns between the neck of screw and camera body. Magnet assembly (0-S) is retained with nut and a screw. Armature or it's pin should not touch to camera body. " Armature pin should come just in the middle of the hole of Top mec. plate assembly (0-C1I). No clearance is desirable between the armature pin and Magnet actuator plate assembly (0-E13) in cocked condition. A138 Gm pin = 1.
9. ADJUSTMENT OF MECHANICAL EXPOSURE TIME * Curtain speed shutter speed tester (PAPACY, PANIC) First curtain 11, 5ms at 1/1000sec Second curtain 11. 5ms at 1/1000sec The adjustment procedures are quite same with SYMPTOMATIC (Product No. 23102} * Bounce adjustment of first curtain First curtain bounces adjusted at 1/b0sec by screwing in or out Bounce stopper adjust screw (E109). The adjustment procedures are quite same with SYMPTOMATIC (Product No.
PA16~C or PA-C T ADJUSTER (TAQ 1101) Sid Fig 15 When the difference of both exposure times does not exceed 0, Tms, the magnet must be adjusted again by turning the Magnet adjusting screw (A138) clockwise slowly, But if it is turned too much, the magnet does not keep the second curtain at 4V. Sometimes, the magnet has some troubles itself, in that case, replace the magnet. 11. POWER SWITCH The clearance of both contact pieces should be adjusted in 0, 5mm, Fig.16 12.
POWER SW. £84 tin, ASA VOLUME RESISTOR ASSEMBLY (0-R) When this part is installed, care should be taken not to make uneven turning of it's turning part. Install the parts as shown in the Fig. 19 Fig.19 15. FRONT COVER COMPLETE ASSEMBLY Before installing this part, check Diaphragm couplet lever (K17) whether it Front board adjusting collars (All & A112) should turns smoothly or not. be per-assembled.
Mechanical back adjustment Mechanical back measurement is 45. 46mm, Mechanical back is adjusted with Front board adjusting mut (A109 and A110), turning left or right with Special tool (23107K-Al09-A) or tweezers. © | 23107K—AI09-A MECHANICAL BACK 45.46mm Fig.21 Check of memory block Set shutter speed at After cocking the shutter, release the shutter 10 seconds later. Digital auto volt meter must show under 10mV.or 12mV.
How to install Ammeter (©1) When replacing Ammeter use meter installing tester (MC-11-01}. Power source (6V) is supplied from T. adjuster, and Ammeter (©1) is connected to meter installing tester with lead wires. {Refer to Fig. 23) Set Switch at 1000, look at the needle of Ammeter (Al) through view finder. ‘When the needle does not point at 1000, move Ammeter slightly so that the needle will point at 1000. and check the needle whether it functions smoothly from 1000 to I. 1 AMMETER_ T.
. ADJUSTMENT OF ELECTRONICALLY EXPOSURE TIME Adjustment of mechanical exposure time, as mentioned before, is basically the same with that of SYMPTOMATIC (Product No. 23102). After exposure time is adjusted mechanically, electronica exposure time is adjusted with the adjustable resistors installed in print pattern assembly Open diaphragm metering. 8 DC57v MASAI OPEN POSTURE TIME EVE 1ms VIZ 156ms =55 Eve 250 ms Evil ! 158ms Fig.
* Stop down metering (ASAMA, 1X, £8, DC5,7V) move up OS switch lever (A69) in front of EVIL window, camera is set in the conditions as mentioned above, After releasing the shutter, if exposure time shows 1/60, it is not necessary to adjust it, But exposure time shows faster or slower than allowances, adjust the adjustable resistor (VR2). VR2 Fig {Note) 1.
. BATTERY CHECKER ADJUSTMENT Battery checker is adjusted with DC4. 4V, Set shutter dial at AUTOMATIC. Depress the battery checker button and look at the needle through view finder, Check whether the needle comes in the slotted corner nearest 60, if it does not come, adjust the adjustable resistor {VR7). CURVY 44Y JE nO Fig.32 Adjustable resistor should be adjusted in the following order. VR3 VRS VRZ VR6 VRS VR7 This order should be kept strictly. YR3 VRE VHS VRS VR HE a VR4 VR1 VR? Fig.33 VR1 &.
. OTHER ADJUSTMENTS In this service manual, only the exclusive adjustments for ES camera (Product No, 23111) are described. So, the other adjustments, not described here like Mechanical back adjustment, Focusing and so forth, are quite same with SYMPTOMATIC (Product No. 23102). Refer to the service manual of SYMPTOMATIC, 20, DISASSEMBLY In disassembling ES camera, the following cares must be taken. 1. 2.
Product LIST OF SPECIAL SERVICING TOOLS No. 23111 SAHIB PENTAX ES Note: 1. The following tools are for exclusive use of SAHIB PENTAX ES, The tools other than those listed below is the same as those used for Product No, 23102 SAHIB PENTAX SYMPTOMATIC. Please refer to the LIST OF SPECIAL SERVICING TOOLS for Product No. 23102 for details.
