Minolta XE - Page 137

BHow to Short-Circuit SW 5
ated in the drawing.
As SW5 is turned ON during shutter release
only, short-circuiting it may sometimes be
convenient in tracing the causes of trouble.
On this occasion, use the lead wire as indic-
*% Incidentally, use the constant-current power
source as short-circuit of SW5 consumes
13~15mA current at all times.
MVoltege at Electric Circuits of Principal Check Position
T
Voltage Check Before Shutter , | |
Position Faience During Exposure After Exposure Remarks
| | Wattage falls scmewhat
swWwl W3+
C, Tee 3. 0V 3. 0V 3.0V during exposure while the
_ | batteries are in use.
| Some variations occur
’ Tv 4 550~590mV | : i
C,+SWe2 Mean value=570mV | Ty 4 550~590mV Tv 4 550~590mV depending on light
j quantity.
Voltage falls somewhat
Rit SW5— OV 3. 0V OV during exposure while the
batteries are in use.
Ci-— C3- OV OV OV
At AUTO exposure The instantaneous 0V
3.0-+2.5-0V : | display cannot be judged
ce Saws a0 At manual exposure 3. OV by the digital tester.
3. 0-1. 6-+0V
4
: ; When SW5 is ON,
Cit Ru- OV 01, 7~2. 5V OV genoa
At AUTO exposure
Rig com =2.5V 7
(Trigger level) OY At manual exposure OV
=1,6V
When the magnet turns
0-0. 08 =3.0V or off, the counter current
Me oY less aN becomes about 20V
momentarily.
Av 6 Release photometering
Rsv Sy §1120~180mV | 99 sony 120~150mV with some variations in
Mean value ~134mV temperature.
4S—19mV 4S—i9mV sees :
Met 1/15S—65mV Falls somewhat | 1/15S—65mV _| Within the photometering
1/1000S—135mV 1/1000S —135mV 8
Current
Consumption = 125~200nA ~1limA = 125~220nA