Canon A-1 Repair Manual page 100

2) The AE Start Lever position and Aperture
Signal Lever overcharge
making this adjustment.
(1976) section 2.28 and
should be adjusted before
See the AE-l Repair Guide
2.2 9 for these adjustment.
1. Mount an FD SOmm 1:1.4 lens.
2. Charge the mechanism so the AE c harge latch rest on
the first (upper) step of ' t he AE charge lever .
(Fig. 2-11)
AE Charge
Latch~r
- -
,..
Fig. 2-11
3. Put an ohmmeter from screw "A" to the Test Point.
(Fig. 2-12).
Screw
A
Lead (Red)
Lead (Sky Blue)
~~;;
_ _ - - Pattern 3
- - - - Pattern 2
- - - - Pattern 1
Test Point
Fig. 2-12
4, In this condition (step 1, 2) check that the AV brush
1s on the check bit position. (In this case the check
32
point 1s a space in the pattern.)