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Re: troubleshooting continued. [message #30916 is a reply to message #30913]

Thu, 10 March 2005 16:26

PakProtector
Messages: 935
Registered: May 2009

Illuminati (2nd Degree)

this is a new one for me...but then a lot of them are. I would first suggest you check resistances cold and compare between the two. I would suggest there is trouble with the side that has variable LED brightness. The volume know thing is quite weird IMO. Confirm your pin connections, sometimes mirror image/dyslexia-like symptoms have bitten me on the back side.

Check ground to grid, ground to cathode, check that grid-ground resistance is dependant on volume position, and check input jack-ground DCR. If you get somethig unexpected, post your findings.

Some ballparks, input jack-ground ~100kOhm
grid-ground 0 at minimum vulume, 100k at max.

regards,
Douglas

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[Message index]

		troubleshooting continued. By: Manualblock on Thu, 10 March 2005 15:52
		Current between ground and plate? By: colinhester on Thu, 10 March 2005 16:05
		Re: Current between ground and plate? By: Manualblock on Thu, 10 March 2005 18:33
		Measuring current By: colinhester on Thu, 10 March 2005 18:50
		Re: Measuring current By: PakProtector on Thu, 10 March 2005 21:20
		How much difference? By: colinhester on Fri, 11 March 2005 08:48
		Re: How much difference? By: PakProtector on Fri, 11 March 2005 09:01
		Re: troubleshooting continued. By: PakProtector on Thu, 10 March 2005 16:26
		Re: troubleshooting continued. By: Manualblock on Thu, 10 March 2005 18:27
		that's the funny part... By: PakProtector on Thu, 10 March 2005 18:50
		Re: that's the funny part... By: Manualblock on Fri, 11 March 2005 09:20
		Re: that's the funny part... By: PakProtector on Fri, 11 March 2005 09:36
		Re: that's the funny part... By: Manualblock on Fri, 11 March 2005 11:42
		198DCV from B+ to B- for Guinevere By: colinhester on Thu, 10 March 2005 21:31
		Re: 198DCV from B+ to B- for Guinevere By: Manualblock on Fri, 11 March 2005 09:19

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