Description
DEVICE: MF/HF, SSB, TRANSCEIVER PARTS
BRAND: SAILOR, SKANTI, DEBEG
TYPE: RECEIVER SIGNAL PATH 915, SAILOR 4000 SERIES
The receiver signal path includes antenna input protection, pre-selection filters, 1. mixer where the input signal is mixed with the 1. local oscillator signal of the synthesizer, a 45 MHz crystal filter, 1. IF amplifier, and 2. mixer. The local oscillator frequency for the 2. mixer is 44.544 MHz corresponding to a 2. IF frequency of 455 kHz. The 2. IF filter is a narrow-band crystal filter. In the 3. mixer the IF signal is mixed with 456.7 kHz producing an AF signal centred around 1.7 kHz.
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 |
| 1501 | Receiver Signal Path 915 jumper or cable |
Receiver Signal Path 915 Synthesizer Board 911 |
| 1601 | Receiver Signal Path 915 or cable | Receiver Signal Path 915 Synthesizer Board 911 |
| 1701 | Receiver Signal Path 915 or cable | Receiver Signal Path 915 Synthesizer Board 911 |
