Ericsson 1341-B, Руководство по обслуживанию

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4. Change the board.
5. Reload EEPROM customer data into the telephone.
6. Check the function of the telephone and, if necessary, align as described in
Fault Finding and Alignment on next page.
Fault Finding and Alignment
The tables below will inform you about test points and test data pertaining to
the radio and logic/audio boards. This information will aid you in testing but
also in fault finding. In general, the following procedure can be used:
1. Align the boards in the sequence stated below.
2. If you find that a specified value cannot be obtained, use the tools mentioned
in point 3 below to trace the reason.
3. The built-in Test Program will give you access to the function or signal you
want to investigate, and any signal data you may need is found in the section
Connectors and Signals. There you will also find illustrations showing the
distribution of signals on the respective connector pins.
The telephone is to be tested with the following settings if nothing else is ex-
plicitly stated:
DC power supplied either via battery connector 6.8 V, or system connector
6.8 V.
Channel 1 RX = 935.0125 MHz, TX = 890.0125 MHz
TX power Test program, option 2:8
AFC ON Test program, option 15:1
Audio switches ON Test program, option 20:3
MANCHESTER switch OFF Test program, option 23:0
SAT tone OFF Test program, option 22:3, 22:5
Handset switch OFF Test program, option 21:0.
The above settings are automatically executed when entering the test program.
Channel selection: Enter channel number followed by #
Tx Power on: If Power Reduction(test #76) is activated,
PL2 and PL3 are indicated on the LCD by a #.
For detailed information regarding the adjustments, refer to Appendix B; Test
Program.
SERVICE: Telephone
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