Hi

I´ve got this Hitachi 3d super woofer, when using the tuner the volume is low, but when i use line the volume is fine, i know that the 3d can play pretty high. ( adjustÏng the amplifire so radio ad line in is the same?)

Thanx

Toolman 

You could try sending a PM to isolator42 who is Mr 3D. Or maybe he'll pop in and see the thread! Your thread title should work

yep get the servisol stuff and watch it fix itself like magic

Hi

Servisol??? u mean contactcleaner? take it apart and clean the volume control??

Thanx

Toolman

Yep...switch / contact cleaner will remedy most issues like this as corroded contacts can cause a million different problems...luckily switch cleaner is cheap and dead easy to use.  Just open the 3D up and spray some into each switch or slider then work the switch 30 or 40 times to clean it.  Let is dry then power her up.

Good idea to do the headphone socket and the record bar too...the record bar is a long thin metal bar on a circuit board usually behind the deck...it has a little slider that moves up and down in the metal housing...squirt some cleaner in and work the thing back and forth a load...job done

I've had boxes that did nothing but buzz load start working perfectly with just some good old switch cleaner.  Use Servisol or Deoxit...depends where you are in the world as to what brand you can get

Hi Again

Both volume control and the line in-tuner-aux.tape switch?

thanx

Toolman

Denmark

You need to do every switch in the box...volume, balance, tone, power, function etc etc...every one can have seemingly unconnected effects on the sound so clean every single one

Hi Again

I cleaned every contact, but no luck (

is it possible to adjust the volume inside( with a screwdriver ) the 3d, to make it louder?

Thanx Again

Toolman

Hi Again and thanx for your help

I´ve cleaned everything. all sockets/sliders/record slider.

Tape output is fine,line in is fin, but tuner is low (

maybe i need new circuitboard? any help needed.

Thanx

Toolman