Minolta XE - Page 139

| Automatic Snap Shot}
% D-1,_ 0K
NO
Connection of A base plate Rry
sliniede: 4 B base plate Rrm
Check on conduction between IC-A4 10 at Defective IC-A
and IC-A5 ee
(Remove lead wires of Rra and Rr. )
(slide resistors)
Defective adjustment
Defective contact of Rsy and Ray
Fig. 1
Check
on
defective
lead
wires,
defec-
tive
soldering,
wiring
of
SW2
and
SW2'
Jb
Check on 254A constant current
(Remove Rp resistance CdS C.)
a
a
a
>
2
°
Hn
°
3
<=
3
po
2
Dt
.
oa
4
9
ay
+
>|
rl
on
ep
~y|
vol
a]
fl
is!
=)
oK
pa { Wenual]
B.C Manual
“t No 3 D-2
a oa
H Check on i
{Batteries!
= 386 ~ 389mV
bet ween [C-A 7
and IC-A 8
lPointer does not move or
ca | k : eter work +t
Check
on
_m
|
movement
is
unstable,
HMO voltage at grounding }—lm Base plate A ov
section
-—1
Defective
adjustment]
Fig.
2
Defective contact of battery box|
Defective soldering and defective lead
wire to SW6 on BC base plate.
Base plate B
plate
Check on power screw fastening, sondering
of lead wire connecting base plates A
:
-
-—Bmy
Disconnection
of
pattern
|
Fig.
3
Wire
connection
voltage
plate A
Check on power source] _p.JSW1 (+) of base about av) hs boty ta Se portion from
Lim ISW1 (—) of base
SW3 (+) of base
plate B
plate A
roca
Lei Check on charging vol-
tage to C2
3.0—-~2,5-0-3.0V
At manual snap shot
3.0-+1.6-0-3.0V
Check on trigger
level voltage
(Shorteircuit SW5)
unit
La
A-M
change
SW]
me
Vt
mi
Defective
contact
or
stain
of
A-M
Com. unit Loud
Check on voltage vari-
ations at Cs (+) unit
(Shortcircuit SW5 and
measure in | sec.)
AUTO _0.92-+2.5-+0.02V
Manual
pid Check on voltage veri-
imi Defect in the portion from SW1 (+) of base
plate A to SW3 (+) of base plate B.
us) Defective contact of SW1l (+)
Fig. 4
SW3 (=) unit 3y}— eg contact Check SW3 alone.
AAUTO snap shor J] Between C2} —SY0V}- AY Defective soldering of Ci] Fig. 5
Defective
soldering
of
IC-B
diode
No.
6.
D
(—)
unit
‘about
a
i
-B
di
:
A-M
change
SW
Lifted
from
patterns
Rg
and
Rip
and
contacts
change SW
r—Miabout VF Ris to base plate B.
Defective
soldering
of
lead
wire from
ation at Mg (—) unit
(Shortcircuit SW5 and
measure in 1 sec.)
mi
OV
or
Defective
contact
of
stain
of
A-M
Lunstale!
change
SW
Pay
oct
m|
Disconnection
and
defective
solder-
i
all
ing
of
Mg
lead
wire
Fig.7
AUTO
Manual
=0.07-3.0-+0.07V
im} Check on conduction
Check on conduc-
tion to SW5 alone
'
I
I
l
l
i]
|
|
1
!
1
I
!
]
I
l
|
!
i]
!
|
!
|
!
I
|
I
!
!
|
1
|
I
I
I
l
|
(measured per 1 sec.)
I
|
|
|
|
l
|
|
!
I
I
I
I
I
I
!
|
1
|
!
|
!
J
!
I
I
!
!
1
]
[
!
of SW5
OK
[Mechanical Shutter }
No!
im Check on shutter block |
at the speed set
to B
chattering J
Fig. 6
Fig. 6
No condue- |
tion but Defective contact