Minolta XE - Shutter Block Performances Check; 1 Confirmation of manual split-second timing

WiShutter Block Performances Check ~*
@ WChecking points:
1. Confirmation of manual split-second timing
2. Confirmation of chattering of SW. 4
3. Confirmation of Mg attracting voltage
4. Confirmation of synchro time lag
[1|Confirmation of manual split-second timing
@Measuring instruments:
: 081 standard circuit tester (Model SC-1)
: Digital time counter (Model TC-1)
: Shutter tester
WStandard value:
“SS
SEL”
set
position
of
Indication
of
shutter
tester
GR
tine
|
081
standard
avometer
Standard
value
|
Allowable
value
1/1
1000ms
758~
1320ms
(+0.
4Ev)
ls
1/4
250ms
|
189~330ms
(+0.
4Ev)
251ms
1/1000
|
0.98ms
|
0.563~1.71ms
(+0.
8Ev)
2ms
Note:
Allowable
values
are
central
values
of
shutter
tester.
For
unevenness
refer
to
inspection
standard.
WChecking procedures:
1.
Incorporate
the
shutter
into
the
body,
and
connect
lead
wires
of
SW.
4
and
Mg
of
the
shutter
block
to
081
standard
avometer
as
shown
in
the
figure
below.
Digital time counter
SW 4 (Yellow)
g : 081 standard circuit tester
Meg (Black)
+ Digital time counter
SEP-COM SW: SEP
Trigger level A-CH: +1(¥V)
B-CH: +1(V)
Trigger slope A- CH: +
B-CH: +
* Shutter tester
Curtain
traveling
direction:
DOWN
FUNCTION: EXP-T
©
081
standard
avometer
SS SEL:1, 1/4, 1/1000
V SEL: 3.0V
7
Setting
of
measuring
instruments
@ Shutter tester
2. Check that measured values for 1/1, 1/4 and 1/1000 are within standard values.
Note: Digital time indication may vary depending on chattering of SW. 4.