Digest for sci.electronics.repair@googlegroups.com - 1 update in 1 topic

John Keiser <johnkeiser@juno.com>: Nov 18 09:02AM -1000

On 11/14/2021 2:20 PM, John Keiser wrote:
> Am I on the right track?
> What should I do next?
> Thank you for any advice.
 
With the excellent advice and encouragement of Mr. Terrell I believe the
problems are caused by a defective regulator IC [TA7179P].
The part is long obsolete but before brewing a work around [same IC
fails in arcade games and Roland devices] I will wait for a Chinese IC
marketed as a replacement. [Fraud for $2? Maybe.]
I will report back with the result next year.
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