Service Manual

4.3.3.2 Shutter function at about 8ms occasionally at "B" or settings slower than
1/125 sec.
There are times where the shutter functions at about 8ms [1/125 sec.] continuously or
once in about ten times.
This is caused because the shutter power switch (SW-2) is not held properly. In other
words, the SW-2 (red and pink) is shortcircuited on the shutter printed wiring panel. If,
after operating the shutter about twenty times, it provides normal function, it is an
indication that the activating lever of the SW-2 fails to hold the power switch-off lever.
In this case, replacement of the shutter is required. 4.3.4 Adjustment of the shutter speed.
In case the shutter functions either excessively fast or slow at all shutter speeds, proper
adjustment can be accomplished by turning the shutter speed resistor ring in the required
direction.
The adjustment screw on the base of the slide resistor assembly is linked directly to the
shutter speed resistor ring. By loosening this screw and turning it either to the left or
right along the guide slot, proper adjustment can be made.
4.3.4.1 Shutter functions at a speed faster than the normal rate.
This is caused when the resistance of the shutter speed resistor (VR-2) is set below the
normal level. Proper adjustment can be made by shifting the resistor in the direction to
the right of the main spindle when viewed from the bottom of the resistor itself. 4.3.4.2
The shutter functions at a speed slower than the normal rate.
This is caused when the resistance of the VR-2 is set beyond the normal level. To make