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68009482001
September 9, 2011
Troubleshooting Charts and Error Codes
Troubleshooting Charts
7-23
Figure 7-21. Recorder RX Audio - A
Apply an on-channel signal at -47dBm,
modulated by a 1kHz tone at 60% rated
system deviation, to the Consolette receiver.
Is there a 1kHz,
~300mVrms tone at U1813-
6 on the Consolette
Mainboard?
Reprogram/Replace Consolette
Mainboard.
Verify “Recorder Configuration” is set to
Record RX only in the Audio Parameters of
the Consolette Configuration.
Is the APX7500 mobile
operating properly?
Refer to the APX7500
Detailed Service
Manual for correct
operation and
troubleshooting.
Is there a 1kHz,
~300mVrms tone at
R2834?
Is ~3.3Vdc
present at
U1813-2?
There may be an issue with the
internal board routing of
VCC_3.3V.
Verify R1896, U1813,
C1855, R1894, R1893,
C1885, Q1806 & C1856 are
placed properly.
Does U1813-1
measure ~2.8Vdc?
Replace U1813.
Reprogram/Replace Consolette
Mainboard.
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Is there a 1kHz, ~300
mVrms tone at the Recorder
Connector (J23-1)?
STOP
Is the RX Codec Adjustment
in the Consolette Configuration
properly tuned?
Refer to the “Receive
Audio Tuning
–
RX_AUDIO” section of
the manual.
~300mVrms tone present
Содержание APX 7500
Страница 1: ...APX TWO WAYRADIOS APX 7500 MULTI BAND CONSOLETTE DETAILED SERVICE MANUAL ...
Страница 4: ...Notes ...
Страница 96: ...September 9 2011 68009482001 4 26 Feature Operation Emergency Notes ...
Страница 116: ...September 9 2011 68009482001 6 10 Cabling Diagrams and Rear Panel Rear Panel Connector Pin Descriptions Notes ...
Страница 156: ...September 9 2011 68009482001 7 40 Troubleshooting Charts and Error Codes Troubleshooting Charts Notes ...
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