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Laney VC30 OD Channel Dead


 
3/13/2005 5:25 PM
lonzo
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Laney VC30 OD Channel Dead
Looking to p/u a Laney VC30 1x12 combo, but it has a strange problem in the dirty channel. The dirty side has very,very low output and it's not distorted. The drive knob crackles a bit at about 40% of full but does not do anything. The OD channel volume is barely audible when wide open.  
Clean channel seems to function properly and at the appropriate volume.  
 
Bad V2,maybe?  
 
Thanks for the assistance  
 
lonzo
 
3/17/2005 2:55 PM
lonzo
Replaced V2 & swapped tubes around with no cure to the thin / dead OD channel.  
 
Any suggestions would be greatly appreciated.  
 
thanks,  
lonzo
 
 
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3/19/2005 6:39 AM
me again
aside from the loss of volume/low output it sounds similar to my problem, which is discussed in thread "No Subject"  
could possibly be a similar problem
 
3/21/2005 5:33 PM
paulh
Just off the top of my head, it could be a broken pot. Does this unit have PC mounted pots?  
Also check to see if you have supply voltage (100-300v) DC going to pins 1 and 6 of the preamp tubes.
 
4/25/2005 5:44 PM
lonzo
Supply voltage is good...thanks  
 
Pulled the chassis this weekend and found the gain / drive pot (PC mounted scoundrel) to be the source of my problems. A new one is on the way from Mouser...  
 
Thanks for everyone's suggestions and advice.  
lonzo
 
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