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Service Instructions
Fault Finding and Alignment
The table below shows information about test points and test data of the radio and
logic/audio parts of the board. This information will become an aid in testing as well
as fault finding. In general, the following procedure can be used:
1. Align the boards in the sequence stated below.
2. If a specific value cannot be obtained, use the tools mentioned in step 3 below to
3. The built-in Test Program will provide access to the function or signal to become
The telephone is tested, unless otherwise explicitly stated, with DC-power 6.2V
supplied via a dummy battery.
Channel 1
RF Power Off
AFC Active
Audio Switches On
SAT Tone Off
Manchester Out Off
Volume 4
TX Source ATMS
Earpiece External
Compandor Disabled
Softlimiter Off
Green LED Off
Red LED Off
ICTRL Off
Illumination Off
TP = Test Program
The above settings are automatically executed when entering the test program.
For detailed information regarding the adjustments, refer to subsection Test Pro-
gram in this section.
10
trace the reason.
investigated, and any signal data that may be required is found in the section
Connectors and Signals, where the distribution of signals at the respective con-
nector pins is found.
TP-1:1 (RX = 935.0125MHz, TX = 890.0125MHz)
TP-2:8
TP-15:2
TP-20:3 (TX & RX audio paths unmuted)
TP-22:3
TP-23:0
TP-25:4 (mid range)
TP-27:0
TP-28:2
TP-29:0 (disabled)
TP-32:0
TP-41:MENU+4:0
TP-41:MENU+5:0
TP-41:MENU+2:0
TP-41:MENU+6:0
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