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Old 16th Dec 2017, 2:45 pm   #16
aechopan
Retired Dormant Member
 
Join Date: Dec 2017
Location: Oxford, Oxfordshire, UK.
Posts: 9
Smile Re: Alba 3112: completely disoriented

Quote:
Originally Posted by Station X View Post
A simple test would be to connect your meter on ohms range to the live and neutral pins of the mains plug. With the set turned on you should read around 1200 ohms. If you see infinite resistance, short-circuit R24 and see if the reading is then correct.
You all are great, guys, thanks a lot for all the advice and patience.
Sorry also for the late reply, I am a doctoral student and I had a deadline this week.

I just checked the value of the resistance measured between the + and - mains when switched on. The multimeter registered 0, so I shortcircuited R24 it as you suggested, StationX. The value reported is ca. 1329 Ohm.

My guess for next steps would be:

-Replace that resistor (R24) for a modern one (100 Ohm, 0.25 W).
-Replace capacitors evidently leaking:
  • C31 with 0.022Uf Class X1, 440V
  • C28 with 4.7nF Mylar/Polyester, 100V
-Replace the scary mains cable made of nylon by a modern one (2-Core 3A).

Does anything sound crazy?
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