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Re: Troubleshooting a 250 model 1 Bass amp [message #27395 is a reply to message #27394]

Tue, 25 June 2019 17:04

Byteviolator
Messages: 13
Registered: June 2019

Junior Member

Hi Steve,

Thanks for your input. I think I may have overestimated my troubleshooting skills!
1) The two main filters are a easily reversible fix, they are still in place.
2) Should I start with Q1 on the 5065 and work my way through or start with the power transistors Q10 - Q13?
3) Should I also be looking at the caps on 5065.
4) With the 3 wires connected to the 5065, I'm measuring about 43mV on the output jack when the amp is on

I've changed the power cable to a 3 pronged because I was getting zapped while unplugging the input jack and holding the chassis (should have taken that as a warning to slow down)

Thanks again

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[Message index]

		Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Mon, 24 June 2019 20:00
		Re: Troubleshooting a 250 model 1 Bass amp By: stevem on Tue, 25 June 2019 06:08
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Tue, 25 June 2019 17:04
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Tue, 25 June 2019 17:19
		Re: Troubleshooting a 250 model 1 Bass amp By: chicagobill on Wed, 26 June 2019 13:29
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Wed, 26 June 2019 16:04
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Wed, 26 June 2019 16:38
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Thu, 27 June 2019 07:37
		Re: Troubleshooting a 250 model 1 Bass amp By: chicagobill on Thu, 27 June 2019 15:47
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Thu, 27 June 2019 21:03
		Re: Troubleshooting a 250 model 1 Bass amp By: chicagobill on Thu, 27 June 2019 23:50
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Fri, 28 June 2019 20:28
		Re: Troubleshooting a 250 model 1 Bass amp By: chicagobill on Sat, 29 June 2019 00:15
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Mon, 01 July 2019 11:25
		Re: Troubleshooting a 250 model 1 Bass amp By: stevem on Mon, 01 July 2019 12:17
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Mon, 01 July 2019 15:29
		Re: Troubleshooting a 250 model 1 Bass amp By: chicagobill on Mon, 01 July 2019 13:17
		Re: Troubleshooting a 250 model 1 Bass amp By: stevem on Tue, 02 July 2019 06:11
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Tue, 02 July 2019 17:11
		Re: Troubleshooting a 250 model 1 Bass amp By: chicagobill on Tue, 02 July 2019 20:07
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Tue, 02 July 2019 22:07
		Re: Troubleshooting a 250 model 1 Bass amp By: stevem on Wed, 03 July 2019 05:38
		Re: Troubleshooting a 250 model 1 Bass amp By: Byteviolator on Thu, 04 July 2019 17:51
		Re: Troubleshooting a 250 model 1 Bass amp By: stevem on Fri, 05 July 2019 06:55

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