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I search schematics for Crest MT1500

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Matt276 View Drop Down
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    Posted: 06 November 2018 at 5:59pm
Hello,

I looking schematics for Crest audio MT 1500

I need it to repair my JTS UA6

My trouble : 


NTC burst at start 

please help needed Cry
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kedwardsleisure View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2018 at 6:28pm
did you replace the NTC? They sometimes spark when they get old, no other fault. I assume that the rest of the amp works ok after it's little firework show.

Kevin

North Staffordshire

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M4trix View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote M4trix Quote  Post ReplyReply Direct Link To This Post Posted: 07 November 2018 at 12:12am
Originally posted by kedwardsleisure kedwardsleisure wrote:

They sometimes spark when they get old


Old Sparky ?


LOL
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Matt276 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Matt276 Quote  Post ReplyReply Direct Link To This Post Posted: 07 November 2018 at 7:57am
yes I have already replaced the NTC but after 3 starts the problem come back

- // mode work on 2 channel
- stereo mode A is ok but nothing on B

I checked Toshiba 2SA1943 and 2SC5200 I found nothing
I checked also D25XB60 seems good 
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