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Bash 300s

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#2
Check the power supply board - its should be the same ones that are in some Klipsch (as you mention) and Martin Logan Plate amps. Read me the model number. I may have a power supply board. You may not need to replace the entire plate amp.
 
#4
No, I mean the label on the power supply board. It should say BASH XXXXXXX, It looks like the board on the right in the pic.

This is all you should need. These BASH power supplies are in many plate amps
 

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#9
john65b said:
I have Indigo 600131 Rev 0.

Not quite sure these are compatible...my guess is they are.
Click to expand...

John, that looks like a shot of a Martin Logan plate amp I'm busy with - and it has the exact same 600131 part number.

Would you be able to tell me the value of R426 please? It's directly above the L/H power supply electrolytic. Mine's o/c.

Thanks,
Aldo
 
#11
Thanks John. I found a similar Indigo based design and going by that one, I'm almost certain it's 160K. My original device was eaten up by corrosive glue so not much left to go on. Other than one swollen electrolytic, I don't see anything else obviously wrong. The fuse is still original and intact. Will give it a try tomorrow and report back.
 
#16
Just an update. Fitted a 160K, replaced both 220uF 200v electrolytics (I had 470uF, same diameter, taller can), cleaned up all the glue mess and it works fine. The only maybe slightly useful thing I can add to this thread is D14 (on the little drive board for the PSU Fets) is a 1N3070. It's a small signal diode and many would probably use a 1N4148 - but... I checked the datasheets for both and the 3070 has double the Repetitive Peak Reverse Voltage. Because these boards can be such pigs to repair, well, it may be better to stick to the 3070.

And thanks John for being willing to look, and for the other suggestions.
 
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