I just cleaned all pots with deoxit and when volume is turned all the way down there is still a broadcast coming through on right speaker. Then when I turn up to maybe 3 or 4 the left channel catches up. I can also balance to left and it goes away in right. This has really got me stumped. Checked all connections and nothing. I resoldered one pin on volume but still did not fix.

I didn't understand ...
The broadcast is heard even in tape position ?
that sound like the signal path is cut somewhere ...
Does the right channel pot work ?.

No but in tape position when volume is turned down and you press play it can still be heard out of right channel

So my right channel radio/tape and input plays even with volume turned all the way down except if balance turned to left channel

It happened to me with a mono JVC.
Even after cleaning, at the lowest pot position, musci sounded.
The pot was damaged. It was strange because it worked without noise and as I turned it up the volume turned up too.
But the volume couldn't be lowered at all !!!
At lowest position couldn't read 0 ohms (It MOST read ohms). There was some resistance ..
You should check this ....
and the volume couldn't be lowered at all.
I replaced it and the problem gone.

So I need to replace the volume control

No, bb I think that you need to change the ballance control, because it's not the same situation like on mono boxes.

To check for realy wheter is the ballance control is gone, you may commuting a plug wire from left and right speaker on the main board - amplifier out - (its easy to find that's plugs in down middle on board. Also you must pay attention on + and - connections).
Now if same symptoms is happened but on a left channel, I'm 99% positive that you need to replaced the ballance control.

What I dont understand is if volume is down it should bypass balance control

I think that the bad volume control will be recognized on both chanel, not in only one.
Thats why i think that volume is out of question.

So I am not understanding on how to check the balance control

Did you try with headphones? To see there is still a broadcast coming through on right speaker/chanel.

I still dont understand what to do with your test. But headphones and ext. speakers do the same

quote:

Originally posted by devol-toni:

quote:

Originally posted by devol-toni:
you may commuting a plug wire from left and right speaker CONNECTED on the main board - amplifier out - (its easy to find that's plugs in down middle on board. Also you must pay attention on + and - connections).
Now if same symptoms is happened but on a left channel, I'm 99% positive that you need to replaced the ballance control.

Stereo pot is assembled like two mono pots moved by the same shaft that's concentric.
One section can be damaged and the other still work.

If were a balance issue why the boombox sounds even at lowest volume position ?.
The nonworking balance will only be noticeable if you raise the volume a little.
With the volume at min (lets assume the volume pot is working fine) you can't guess if balance works or not because both signal paths are tied to ground by the volume pot ... so you don't have any signal to balance.
If the boombox sound even at lowest volume position seems like the pot can't tie the signal path to ground at all.

I don't know the hitachi ... only have a Sony CFS580 schematic with balance control to check that .....

Have a look....



When both volume pots are at the lowest position, both signal paths are conected to ground. The balance function (which also works tying the signal path to ground) has not effect. Only if some volume pot couldn't reach 0 ohms the sound will continue even at min volume position (and you could balance it !!!)

The easy way is check pots. All included balance
Volume pots MOST read 0 ohms when they are in the max or min position.

Stereo pots have two mono sections with three leads each. Each pair of each section most read 0 ohms when the pot it's in an extreme (max or min) position.

quote:

Originally posted by devol-toni:
I think that the bad volume control will be recognized on both chanel, not in only one.
Thats why i think that volume is out of question.

You are right. I just took the balance control off and still same problem. I also looked closely and there is 2 pots on tho volume control. Now too get a volume control that will work. Thanks

Obviously I,m wrong with this.

baddbill, I hope that you will solved this problem fast and easy.

success@: thanks for that explanation.

DT thanks again for helping