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Korg Stage Echo transformer?
Korg Stage Echo transformer?
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Old 14th March 2018, 11:58 AM   #1
Alexwfm is offline Alexwfm
diyAudio Member
Join Date: Sep 2013
Default Korg Stage Echo transformer?


I'm fixing a Korg Stage Echo 300 that has a shorted bias IF transformer.
As expected I couldn't find any markings on the part as well as the schematic that only shows it's variable, center tapped on both primary and secondary.
..what would you do in this case?
I can see a short on the secondary and if I lightly touch the casing of the transformer the primary also shorts making the current limiting resistors (39ohms) burn.

I attached the bias circuit.

Thanks in advance.
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