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DRM 85-C, DRM 85
08/2007
29/41
5.2
Test table
se-
quence
type of measure-
ment/adjustment
signal input
device settings
measuring
point/ test
point
required
value
remarks
1
visual inspection
at first dismount the transmitter. See also exploded view.
1.1
switches and
buttons
–
–
–
contacts are not twisted, no
hairline cracks at the solder
points, no mechanical damage
1.2
battery
compartment
–
–
–
see 1.1
1.3
flat ribbon cables
and terminal strips
–
–
–
see 1.1;
terminal strips are locked
2
current and voltage measurement
2.1
operating voltage
3 V
DC
via
battery contacts
DRM 85 = ON
–
+2 V
DC
to
+3 V
DC
LOW BAT:
+1.8 V
DC
current
limitation min.
500 mA
REC LED is
blinking;
the recording
sequence stops
see also the LOW
BAT logfile entry
in the DRM 85
root directory
2.2
current
consumption when
in operation
see 2.1
see 2.1
ampere-
meter in
series to the
power supply
typ. 175 mA
–
2.3
DC/DC-converter
voltage
see 2.1
see 2.1
TP406 "EVER
3.3V" / M2
TP507 / M2
+3.3 V
DC
+1.8 V
DC
see page 39, 41
2.4
supply voltage
AF board
see 2.1
see 2.1
C121 / GND
+3.3 V
DC
–
3
checking the display elements
3.1
checking the
automatic backlight
display deactivation
see 2.1
see 2.1;
No user interaction
–
backlighting switches off after
approx. 15 seconds
3.2
audio level display
see 2.1
see 2.1;
“RECLEV“ = 10 dB
Speak into the microphone
–
AF display deflection
3.3
“REC“ and
alphanumeric
display
see 2.1;
see 2.1;
Press “REC“ button
–
“REC“ lights up
the visible display recording time
counts down
3.4
“PLAY“ display
see 2.1;
See 2.1;
press the “PLAY“ button
–
“PLAY“ lights up;
the visible play time counts up