Quad FM4 tuner

[AMV8]

Hi

My Quad FM4 tunerhas stoped working on channel. ( I think this may be connected to the damage to the circuit board when the battery leaked ) I am planning to check out the problem but wondered if anyone had a circuit diagram that they would be willing to post.

Thanks

don

 

[AndrewT]

Battery?
What battery?

 

[ANTHONY2181]

Andrew,

The Quad FM4 has a 2.4 v Nicad for Memory backup these usually leak out onto the pcb and makes a nasty mess.

Don,

I have a Quad FM4 repair manual if you need any info. Tell me what board issue it is and I'll photo copy it next week for you.Drop me a mail

Ant2005uk1@hotmail.com)

Regards

Anthony

 

[ejp]

The Quad FM4 has a 4.8V memory backup battery, not 2.4V. These days it and IC1 should be replaced by the new battery-less IC1 from Quad.

NB This thread should be in 'Analogue Source'.

 

[stratus46]

The Quad FM4 has a 4.8V memory backup battery, not 2.4V. These days it and IC1 should be replaced by the new battery-less IC1 from Quad.

NB This thread should be in 'Analogue Source'.

Your last response about a Quad FM4 was to a thread almost 7 years old. THIS one is almost 13 years old. I doubt the OP is worried about it any more.

G²

 

[ejp]

I'm sure he isn't, but this is a site of record, and plenty of other people will be interested, and errors should be corrected, not left to stand forever. It's not a chat site.

 

[Mooly]

...NB This thread should be in 'Analogue Source'.

It is now

 

[tiefbassuebertr]

Hi

My Quad FM4 tunerhas stoped working on channel. ( I think this may be connected to the damage to the circuit board when the battery leaked ) I am planning to check out the problem but wondered if anyone had a circuit diagram that they would be willing to post.

Thanks

don

I think, it is this device:
Doz' Blog: Quad FM4 drifting and amnesia.
the same issues by such batteriy/accu than in Linn's KAIRN - go to
Linn Kairn repair
a good solution to avoid this I have created - go to the images under
https://www.diyaudio.com/forums/analogue-source/334893-linn-kremlin-fm-stereo-tuner.html#post5933659
(post #7)