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Old 23rd June 2014, 04:35 PM   #1
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Default supply rail voltage at gates??

I have a post in the class d section. Then I noticed the car section so I'm gone a post Here now lol

I have amp I'm working on. And I amp getting supply rail voltage at the gates. What else could cause this besides a blow driver ic. I removed the driver board and now I dont get the rail voltage at the gates. I poked at all the parts on the driver board and there is no shorts. Could a blown op amp in the input stage cause this? I notice one of the 8 leg ic's in the input stage 3 of the legs are shorted or connected together on he board. I haven't checked yet to see what the chip is if its an opamp or not. Will be doing so when I get home. But if anyone has an idea that may cause this besides the class d driver. Would be a great help thanks
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Old 23rd June 2014, 05:55 PM   #2
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Location: Louisiana
Exact make and model?
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Old 23rd June 2014, 06:10 PM   #3
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Quote:
Originally Posted by Perry Babin View Post
Exact make and model?
Kaption DZ-2000.1
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Old 23rd June 2014, 09:00 PM   #4
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I don't have anything on that amp. If no one else answers your questions, post good quality photos of the entire amp and another of the audio driver board if it has one. It may be a clone that others are familiar with.
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Old 23rd June 2014, 10:10 PM   #5
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Quote:
Originally Posted by Perry Babin View Post
I don't have anything on that amp. If no one else answers your questions, post good quality photos of the entire amp and another of the audio driver board if it has one. It may be a clone that others are familiar with.
Alright thank u
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Old 26th June 2014, 08:24 PM   #6
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here are some pics of the amp
[IMG]Click the image to open in full size.[/IMG]

[IMG]Click the image to open in full size.[/IMG]

[IMG]Click the image to open in full size.[/IMG]

[IMG]Click the image to open in full size.[/IMG]

[IMG][url=http://postimg.org/image/mlemzu435/]Click the image to open in full size.

[IMG]Click the image to open in full size.[/IMG]

[IMG][url=http://postimg.org/image/bgu9savqp/]Click the image to open in full size.

[IMG]Click the image to open in full size.[/IMG]

[IMG]Click the image to open in full size.[/IMG]

[IMG]Click the image to open in full size.[/IMG]

[IMG]Click the image to open in full size.[/IMG]

Last edited by ryley_999; 26th June 2014 at 08:26 PM.
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Old 26th June 2014, 08:52 PM   #7
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Post the photos by using the 'Go Advanced' button below the quick-reply window. I'm assuming that the photos are MUCH larger than the size they're showing up as in the previous post.
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Old 27th June 2014, 01:26 AM   #9
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Please read the section taking good quality photos on the basic repair page and then post a good quality photo of the audio driver board.
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