Minolta X-300 - Page 31

23
Hi
Check
and
adjustment
of
release
lock
voltage
and
LED
blink
voltage
Check
(Release lock voltage | Standard | 2.46+0.1V
GILED blink voltage Standard | 2.56+0.1V
ein case of out of standard above, adjust those as following procedure.
Mi Measuring instruments : Constant voltage D.C power source (MODEL 524B, E-1. E-2)
: Digital multimeter (Type 2508, 3476, 2507)
: Direct current tester
Mi Checking procedure
1. Check the current consumption at B setting (inel’d *# indication) using measuring instru-
ments as follows.
Fig. |
| eS « Camera
(=
|
OC
power
source
‘Ovmwt:
3”
|
Shutter
dial
:
B
\
re)
Touch
SW:
ON
Connection of : --Battery case contact
fA\ power source —---Batter case base plate
2. Measure the release lock voltage while reducing slowly the voltage of D.C power source
from 3V. :
3. Choose a proper resistor (Ry) for B.C from the graph (next page) according to measured
value (Checking procedure | & 2), and solder it on portion A or B in Fig. 2.
e Note---Measuring temperature should be within the range of 25=5°C.
MFig. 2
(
nn
a
i
Le
a
f
ook
f
|
o
Mi Checking high and low shutter speed limits
Mi Measuring instrument : Shutter tester ‘Model S-2101. FS-1DMN4)
T.High shutter speed limit (shutter speeds in other than high luminance operation in A mode.)
@(lheck the shutter speed with the shutter dial set to A.
| Standard | 0.69~1.38ms |
2'Low shutter speed limit (shutter speeds in other than low luminance operation in A mode.)
® Set the shutter dial ta A, and then check the exposure time with light to the receiver
interrupted.
| Standard | Within 5 sec. |