Re: Crack Grounding, Tracing The Signal and Power Supply Common/Ground

Bruce65 · 983

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Offline Bruce65

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on: December 30, 2013, 04:14:34 AM
Hello,,

Bruce65 Just finished a Crack for my Son but one Channel is dead.

I have checked all Wiring and solder Joints and I believe everything is correct.

Resistance All Check Good,,but Voltages are somewhat OFF.

I have one question: LED's on the Preamp Tube; Shouldn't they both be lit?  I have one lit and one out.

Both Tubes Glow in two spots,  Any way to Check signal path? need O'Scope?

Bruce



Offline galyons

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Reply #1 on: December 30, 2013, 06:35:56 AM
Bruce,
Post any voltages that are off by more than 10 -15% off.  That is the best way to start diagnoses.

Cheers,
Geary

VPI TNT IV/JMW 3D 12+Benz LP-S>  Eros + Auralic Aries + ANK Dac 4.1 >Eros TH+ Otari MX5050 IIIB2 > BeePre >Paramount 300B 7N7 > EV Sentry IV-A

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Offline Grainger49

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Reply #2 on: December 30, 2013, 12:53:16 PM
If you have any concerns about signal common and grounding the instructions to trace it is in my posted sticky in the Crack folder.


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