Amp Problem

definer · 8th May 2004, 05:38 PM

I have a Fisher CA-854 amp that has a strange problem. The volume is either all on or all off - there's no middle ground. Doesn't seem to be a pot problem. Any ideas?

Ken

boholm · 8th May 2004, 07:16 PM

A short circuit between wafer and signal on or after the potentiometer?

Both channels or just one?

Netlist · 8th May 2004, 07:21 PM

Check/replace D206 and D207. Both 10V zeners.

/Hugo

definer · 8th May 2004, 10:04 PM

Both channels

8th May 2004, 05:38 PM	#1
definer diyAudio Member Join Date: May 2004 Location: North of Tampa	Amp Problem I have a Fisher CA-854 amp that has a strange problem. The volume is either all on or all off - there's no middle ground. Doesn't seem to be a pot problem. Any ideas? Ken

8th May 2004, 07:16 PM	#2
boholm diyAudio Member Join Date: Apr 2004 Location: Copenhagen	A short circuit between wafer and signal on or after the potentiometer? Both channels or just one? __________________ Best regards Bo

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8th May 2004, 07:21 PM	#3
Netlist diyAudio Moderator Join Date: Jan 2003	Check/replace D206 and D207. Both 10V zeners. /Hugo

8th May 2004, 10:04 PM	#4
definer diyAudio Member Join Date: May 2004 Location: North of Tampa	Both channels

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