SAILOR RX EX SIGNAL PATH 715

Description

DEVICE: MF/HF, SSB, TRANSCEIVER PARTS

BRAND: SAILOR, SKANTI, DEBEG

TYPE: RX EX SIGNAL PATH 715, SAILOR 4000 SERIES

The RX signal path includes protection, antenna attenuator, RF- and IF amplifiers, mixers, filter bank, demodulator, squelch and audio line drivers. The RX signal path performs the handling of the received antenna signal and delivers an AF signal to the control unit via DC Power Supply/Interface Board where the AF-signal is converted from an unbalanced to a balanced signal. The EX signal path includes the AF compressor, modulator, filter bank, mixers and EX amplifier. The EX signal path generates the modulated RF signal for the power amplifier. The RX / EX Signal Path 715 is controlled by the TU Control Board 910 and receives its injection signals from the Synthesizer Board 911.

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.