Sailor COMPACT HF SSB T2130, Technical Manual

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3 SERVICE T2130
PAGE 3-2
3.4 TROUBLE SHOOTING
SAILOR Compact HF SSB system has built-in self-diagnostic service system, which is a great help in
locating a fault.
When a fault is detected an error message will be displayed in the RE2100 display.
The following description will help you to find the defective unit or module.
Trouble-shooting should only be performed by persons with sufficient technical knowledge, who have the
necessary measuring instruments at their disposal, and who have carefully studied the operation
principles and structure of SAILOR T2130.
The first thing to check is whether the fault is somewhere in the antenna circuit or power source.
When measuring in the units, short-circuits must be avoided as the transistors would then be spoiled.
LOCATING THE FAULTY MODULE
ERROR MESSAGES, DESCRIPTION
The error messages displayed in the RE2100 display are technically described in the following.
70. MOTOR CIRCUIT ERROR (AT2110)
An error is detected in the circuitry controlling the tune motor MO1 in the AT2110. The TX-processor has
not detected the ‘180o pulse’ from the AT2110.
The error may be one of several possibilities:
If the tune motor MO1 starts running immediately after the power is switched on at the RE2100:
-
Check the level of the ‘180
o
PULSE/AE-CURRENT’ at ST01 pin 3, on the Connection Board (6) in
T2130.
If the level is high (approx. 15 Volt):
The error is probably in the AT2110:
-
Check the ‘180
o
PULSE/AE-CURRENT’ connection between T2130 and AT2110.
- Check the ‘180
o
PULSE/AE-CURRENT’ connection in the AT2110.
- Check the light in the optocoupler OC01 on the Main Board (1) in the AT2110. This may be done
by measuring the voltage drop across the resistor R26 in the Connection and Interface module
(3) in the AT2110.
If the level is low:
The error is probably in the T2130:
-
Check the ‘180
o
PULSE/AE-CURRENT’ connection between the Connection Board (6) and the
TX-processor (3) in the T2130.
If the tune motor MO1 does NOT start running immediately after the power is switched on at the RE2100:
-
Check the voltage at ST01 pin 7 when the power is tuned on at RE2100. The voltage should be approx.
16 Volt.