Originally posted by dgmaley The light meter circuit in the K1000 is a balanced bridge system. There are two light sensors and two variable resistors. One resistor is coupled to the shutter speed/ ISO speed control, the other is coupled to the lens opening. There are two reasons the meter will 'peg'. One is that one of variable resistors has some corrision on its wiper contact. Moving that wiper back and forth will sometimes wear off the corrision. The second reason the meter pegs is because you have selected a ISO film speed / shutter combination that is not in the circuit's range. Selecting a ISO 3200 film and 1 second shutter will kill the metering circuit, as an example. There's nothing wrong with the camera. The light meter just doesn't cover all possible combinations.
Dave....
thanks for the info, probably the first reason you mentioned in my case. Ive been using iso 400 film. so i guess ill try to move that wiper back and forth. just got to find it first. thanks again for this info.