Pentax ME Service Manual

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TROUBLESHOOTING:
Typical battery drain
Meter: 1.7-2.0mA
Shutter open: 10mA
Behaviour with batteries
Fastest speed only except at mechanical shutter settings
Replacement parts
Circuit board T100 and Seiko shutter E000 available from Pentsx
only as complete modules; other parts available individually
Troubleshooting steps for specific problems
1. Shutter gives only mechanical speed at auto, LEDs don't turn on
Battery voltage at flex circuit
Check for +3V between ground and each red wire at top of flex
circuit. No voltage: check battery box and red wire solder
connections.
Main switch
Check for +3V at center lead (uninsulated connector) to front-
plate circuit board A129 with release-side partially depressed.
No voltage: check main switch for poor contact. You can also
check the main switch by shorting between the red wire at the
flex circuit and the center terminal at the front-plate circuit
baord. The short should turn on the meter. If it does, the main
switch is the problem.

Pentax ME Specifications

General

Type	35mm SLR
Lens Mount	Pentax K mount
Flash Sync	1/100s
Weight	460g (body only)
Film Rewind	Manual crank
Exposure Modes	Aperture priority auto, Manual
Exposure Metering	TTL center-weighted
ISO Range	12 - 1600
Viewfinder	Pentaprism
Focusing Screen	Split image with microprism
Battery	2x SR44 or 1x 4LR44
Film Advance	Manual lever