Tascam 2488 MK1 Schematic

Adrian Pollock

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Tascam 2488 Mk1
Hi, I am trying to fix this unit that I acquired as a "non-runner". The fault lies with the internal psu. I am handy enough with soldering, using multimeters, replacing components but there is nothing obviously visually wrong with the psu.

With nothing connected to the psu other than mains in, it is giving out the correct voltages, when I hook up the cables to the psu from the various internal circuit boards the output voltage from tge psu drops to zero. Capacitors have been checked, nothing is burnt, loosely soldered. If I had a schematic I could compare what I have with what I should have etc.

Thanks in advance for your help.
 

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