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REASSEMBLY, REPAIR AND ADJUSTMENT
FUJICA AX -1
Section B
GENERAL:
Before proceeding to the following inspections, check S1 - 2 switch,
ST printed circuit board, S3 switch and self - tinier switch for their correct
correct operations and set positions.
be turned on when the film advance lever is wound up completely
and this switch should not be in contact a metal portion of the
camera body.
1.
Check voltages on pins 1 and 2 of the HA16517, and check the parts, wiring
1.
and circuit related to these pins (with S1 switch turned on and film advance
lever wound up completely).
PIN NO.
1
2
Relative parts
NOTE:
When voltage on pin No. 2 is below 0.9V, the shutter will not start.
In this case, check the wiring up to the M printed circuit board and
the M printed circuit board.
2.
Check voltages on pins 20, 21 and 22 of the HA16517, and check the parts,
wiring and circuit related to these pins.
PIN NO.
20
21
22
FUNCTION
Shutter start input
(with auto - winder
combined)
Shutter start input
S1
-
2 switch, S3 switch, Tr2, Tr3, R32 (20K ),
R34 (20K ), and C15 (0.047
(Tr2 and Tr3 circuits are explained in Section D - 2).
FUNCTION
2nd shutter blind
start signal
1st shutter blind
start signal
Mirror start signal
- 1 0 4 -
Particularly, the S3 switch must
VOLTAGE AND OCCURRENCE
The shutter starts when S2 is turned on.
S2 switch OFF:
0.9V or more
S2 switch ON:
0.3V or less
Without auto - winder:
VOLTAGE AND OCCURRENCE
When held:
0.7V or more
When started:
0.3V or less
When held:
0.7V or more
When started:
0.3V or less
When started:
0.7V or more
Normally 0.3V or less
0.9V or more
F)
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