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Old 01-20-2013, 02:55 PM   #1
lillevig
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TCD240 Power Supply Schematic

Had the power supply go out on my TCD240 box. Fortunately, I had a spare unsub unit stored away for just this purpose so I'm back up. Initial indications are that it is the 5 volt side that is bad. No bulging caps, no obvious hot spots on the board so maybe it's just the regulator. here's the question: does anyone have a schematic for this thing?
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Old 01-20-2013, 07:39 PM   #2
replaytv
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I could probably draw you one if you needed it real bad.
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Old 01-21-2013, 07:46 AM   #3
unitron
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Quote:
Originally Posted by lillevig View Post
Had the power supply go out on my TCD240 box. Fortunately, I had a spare unsub unit stored away for just this purpose so I'm back up. Initial indications are that it is the 5 volt side that is bad. No bulging caps, no obvious hot spots on the board so maybe it's just the regulator. here's the question: does anyone have a schematic for this thing?
What voltage readings are you getting under load on the +5 and +12 lines?

I think those schematics are printed with a special ink made of unobtanium.

Even without bulges, I'd try replacing the caps under the heat sink overhang.

You know, the ones that are hardest to get to.
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