I have someone wanting me to fix their receiver and tuner. I am not sure how different it is from an early tube set.
I know the tuner is a TX-300 but I know nothing about the record player attachment.
Any thoughts?
Me
Good luck with it. Right off to bat I see you are going to need a head shell and cartridge and needle for the turntable.
And a counter weight and a platter, lol
Why would she buy it like that.....
It is an AR-XA
The TX-300 is an amplifer (only); it has no built-in tuner and will require a separate tuner to receive radio signals.
ah ok,
I am hoping this lady is not trying to get sound from it then, lol
Me
Question She said she has the turntable parts but someone said the fuse was blown. I read that the fuses are special..
Can anyone tell me what fuse it is and if I can get it?
Thanks
Me
Depends. Do you mean a fuse in the turntable or a fuse in the amplifier?
I haven't heard of very many turntables having fuses, but if the amp has a blown fuse, you should try to get the service data for it which will give the proper ratings for the fuses.
You can find it here:
http://www.hifiengine.com/manual_library...-300.shtml
You will have to create an account to download the manual (free).
Good luck.
Sorry, I should have specified: You need the
service manual, not the owner's manual.
The owner's manual won't have anything like that in there. The service manual should.
If you like, I can look when I get home. (I have a hifiengine account.)
I will see what she says. She said she had it so I asked for a pic and the numbers on it.
Thanks for the help Ron.
Me
Interesting...
Each stereo channel has two fuses (total of four, 2A each) plus a 2.5A slow-blow fuse for the line (mains).
So...go order some fuses. 1/4 x 1-1/4 inch, four 2 amp and one 2.5 amp slow-blow.
Away you go...away you go...away you go...
P.S. A word of warning:
Do not run the amplifier without speakers hooked up to left
and right channels - otherwise, you may blow some (or all) of the output transistors!
Ron
This is the first time I hear about output transistors blowing without the load....never had it happened to me while I was into building transistor amps. Do you know why?
Funny thing about this stuff, tube powered can be fixed, most solid state is hazardous landfill. You can still get a decent turntable for little money on EPay. But scour the web for a schematics and information.
Mike
You would know more about this than I as you are an engineer, but...
From what I have read, transistor amps operated under a no-load condition can go into oscillation which can drive current high enough to fry (short out) the output transistors.