Canon NEW F-1 Service Manual page 47

9. VR TV (VR 6) Level Adjustment
9.1 Set the aperture to f/5.6 (AVS=5), the shutter speed to "A" and the EV Tester light
source to EV12.
9.2 Release the shutter and adjust VR6 so the exposure tester reads 0 ±.0.1 EV
9.3 Another method is to check the voltage (V TV) at Fig. 4 #2.
It should be: V TV = 1.0433 (VC) * 5mV.
10. Battery Check Mode V AV Check
When E1 (measured at SV ckt. board) is 3.50V and the battery check is on, the output
at #1 (Fig. 4) is 1.108 + 30mV.
11. EV Mode Fig. 4 #1 Output
With the dedicated flash inputs ( |AV|, EF ), the output at #1 (Fig. 4) should be as
shown.
12. VR MAV (VR5) Adjustment
12.1 Set the shutter dial to 1/60 (TV=6).
12.2 Set the light source to EV 12 and adjust VR5 (Fig. 4) so the meter needle is at
f/8±0.3f.
12.3 Reset the light source to EV 9. The meter should be at f/2.8 ± 0.3f. Reset the
shutter to 1/250. The meter should now read f/1.4 ± 0.3f.
Canon NEW F-1 Service manual
Assembly and Adjustment Notes
Page 47