Fisher 220 Receiver

bcrescen · 6th October 2007, 06:05 PM

Just picked up an early Fisher solid state receiver. It has a walnut case and I thought it had tubes until I took it apart. It sounds good but has one problem. When switched to mono it drives both speakers with equal balance. When switched to stereo mode one channel is very faint. I can only hear output when turned way up.

Any thoughts as to whether this is a output transistor issue or other problem. I cleaned all of the pots and switches with no success. Thanks in advance for any advice.

Bruce

Netlist · 6th October 2007, 07:59 PM

This would indicate that both channel output stages are not the problem. (Can drive both speakers)
Try tracing the signal in the input stage, before the volume pot.
Perhaps it's only your interconnect or source causing the problem.

/Hugo

bcrescen · 8th October 2007, 12:23 AM

I'm glad you don't think it is the output transistors. I have the same issue when playing FM radio so source isn't problem. I'll check aroung the volume pot.

Thanks.

6th October 2007, 06:05 PM	#1
bcrescen diyAudio Member Join Date: Sep 2005	Fisher 220 Receiver Just picked up an early Fisher solid state receiver. It has a walnut case and I thought it had tubes until I took it apart. It sounds good but has one problem. When switched to mono it drives both speakers with equal balance. When switched to stereo mode one channel is very faint. I can only hear output when turned way up. Any thoughts as to whether this is a output transistor issue or other problem. I cleaned all of the pots and switches with no success. Thanks in advance for any advice. Bruce

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
need diagram fisher receiver 600T	november	Solid State	1	2nd July 2009 03:59 AM
fisher xp 60c	tim614	Multi-Way	0	6th July 2008 02:51 PM
Fisher 500-C	crick	Parts	0	8th July 2007 05:43 PM
FS: Fisher KX-100	speaker	Swap Meet	1	12th May 2007 10:14 PM
Hey i need help with receiver........EXPERTS HELP(two channel receiver)	Andre Baptiste	Parts	1	1st May 2004 10:20 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

6th October 2007, 07:59 PM	#2
Netlist diyAudio Moderator Join Date: Jan 2003	This would indicate that both channel output stages are not the problem. (Can drive both speakers) Try tracing the signal in the input stage, before the volume pot. Perhaps it's only your interconnect or source causing the problem. /Hugo

8th October 2007, 12:23 AM	#3
bcrescen diyAudio Member Join Date: Sep 2005	I'm glad you don't think it is the output transistors. I have the same issue when playing FM radio so source isn't problem. I'll check aroung the volume pot. Thanks.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)