Originally posted by Johnny Rod So it seems, however I spanked the search facility and tried my own investigations before posting as it isn't an easy one. I may have to bite the bullet in the end and pay someone to fix it but I'd rather try to understand things first.
Check to see if you have the 3 volt supply on the PCB at the top of the camera (make sure it's turned on), also check the connections and resistance of the ASA control (J300) and the lens aperture resistor (J400). If they are all ok then it's probably a fault on the PCB.
Here is a slightly better wiring diagram than is shown in the service manual.
Last edited by Ray-uk; 01-25-2015 at 09:29 AM.
Reason: diagram added