Motorola V8162, Service Manual

Page: 47 / 93

Tests & Adjustments
enter the Step 05 hex value noted in Step 26.
Exit the 72# command by repeatedly
depressing the * button until the display
shows the ’ prompt. Remove the injection
audio signal.
DTMF Adjust
Step 17. Enter the following commands:
09# to mute TX audio
59# to turn off compandor
473# to set receive audio volume to level 3
(disables DTMF boost)
335# to turn on DTMF tone “5”
Step 18. Read the peak deviation on the
communications analyzer. If
reading is 9.0 rad + 10%, proceed to Step 30.
If it is not, enter 72#, use the * button to tog-
gle down to Step 07 (left side of display),
and use the volume control or enter numbers
via the keypad (as explained in Step 6) to
adjust for a deviation of9.0 rad + 10%.
After adjustment, exit the 72# command by
repeatedly depressing the * button until the
display shows the ’ prompt.
Step 19. Enter 34# to turn off the DTMF
tone.
SAT Deviation Adjust
Step 20. Enter 251# to enable a 6000 Hz
SAT tone.
Step 21. Read the average deviation on the
communications analyzer. If the reading is
1.4 kHz + 10% (corresponds to 2.0 kHz
peak), proceed to Step 33. If it is not, enter
72#, use the * button to toggle down to Step
09 (left side of display), and use the
volume control or enter numbers
via the keypad (as explained in Step 6) to
adjust for a deviation of 1.4 kHz + 10%.
After adjustment, exit the 72# command by
repeatedly depressing the * button until the
display shows the ’ prompt.
Step 22. Enter 26# to turn off the 6000 Hz
SAT tone.
Data Deviation Adjust
Step 23. Enter 14# to turn on the 10 kHz
signaling tone.
Step 24. Read the average deviation on the
communications analyzer. If the reading is
5.7 kHz + 10% (corresponds to 8.0 kHz
peak), proceed to Step 36.
If it is not, enter 72#, use the * button to tog-
gle down to Step 08 (left side of display),
and use the volume control or enter numbers
via the keypad (as explained in Step 6) to
adjust for a deviation of 5.7kHz + 10%.
After adjustment, exit the 72# command by
repeatedly depressing the * button until the
display shows the ’ prompt.
Step 25. Enter 15# to turn off the 10 kHz
signaling tone.RX Discriminator Adjust
Step 26. Inject a -50 dBm, 883.020 MHz
RX Discriminator Adjust
Step 26. Inject a -50 dBm, 883.020 MHz
(channel 434) signal FM modulated with a 1
kHz tone at + 2.9 kHz deviation into the
antenna port, using an SLN8576A antenna
test adaptor.
Step 27. Enter the following commands:
08# to unmute the RX audio 474# to set the
receive audio volume to level 4356# to select
the external handset audio path
Step 28. Enter 72#, use the * button to toggle
down to step 0A (left side of display), and
use the volume control or enter numbers via
the keypad (as explained in Step 6) to obtain
100 mV rms +15% at pin 7 of J3 (RX audio