Description
DEVICE: MF/HF, SSB, TRANSCEIVER PARTS
BRAND: SAILOR, SKANTI, DEBEG
TYPE: TU CONTROL BOARD 910, SAILOR 4000 SERIES
The digital part includes the micro controller, address decoder, program PROM, configuration PROM, non volatile RAM, real time clock, ScanBus data communication driver, ATU interface, digital TU-bus driver, remote interface and drivers for the analog circuits. The analog part includes voltage regulators, analog interface circuits and analog output drivers. The TU Control Board 910 performs the digital and analog control of the transceiver functions requested by the control unit or the built-in or external modem.
If you see one of the following error codes after performing the Self Test, replacing this card may solve the problem.
Self test description
Two self tests are included:
1. Telephony selected by the ‘FUNC’, ‘TELEPHONY’ and ‘TEST’ menu items.
2. DSC selected by the ‘FUNC’, ‘DSC’ and ‘TEST’ menu items.
The self test is performed autonatically and is used for verification of all functions, except the ones where PA power is applied. All tests will automatically be performed succesively until the last test has passed or an error condition has occurred. If an error is encountered the self test stops and the display shows ‘Error code:’ and 4 digits the test no. and the error no. where the failure has occurred.
| ERROR CODE | POSSIBLE ERROR SOURCE | MODULE |
| 3302 | ATU – TU communication failure Cabling DC Power Supply/Interface 935 – TU Control Board 910 or Cabling DC Power Supply/Interface 935 – Connection Board 936 or Cabling Connection Board 936 – ATU Board 945 |
ATU Board 945 DC Power Supply/Interface 935 TU Control Board 910 |
