technical manual for sailor compact hf ssb t2130 - Gopher Proxy

3 SERVICE T2130
3.4.2 OUTPUT FILTER (MODULE 2)
3.4.2.1 ERROR 71. VFORWARD LOW
3.4.2.2
Check if the error comes up on all frequencies (one in each filter). Fault is probably in relay RE14-2 or
in the cabling from module 2 to the Connection Board (6).
If the error only comes up in one filter, check the input/output relays (eg. RE01-2, RE07-2), and then the
filter capacitors.
3.4.2.3
Check of the Vforward detector.
Select service programme SP-29, see chapter 3.9.
3.4.2.4
Measure the RF-output voltage on the Connection Board (6) with an oscilloscope approx. 200 Vp-p.
Then check the DC voltage on U01/1 pin 1 approx. 6.5V.
3.4.2.5 ERROR 78. INTERNAL SWR TOO HIGH
3.4.2.6
Check R27 and R28 (the power resistors to the left of module 6) with an ohmmeter value 50 ohm ±10%.
3.4.2.7
Check relay RE14.
3.4.2.8 ERROR 73 AND 75
Connect a 50 ohm load to the output terminal on the Connection Board (6).
Select service mode SP-29, see chapter 3.9.
3.4.2.9
Check
Vforward U1 pin 1 approx. 6.5 V
Vreverse U1 pin 7 approx. 10.5 mV.
3.4.2.10
IF Vforward and Vreverse are ok. Then the fault is in TX-Processor (3)
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