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Good day heigei, hi if you turn on the speakers but no ON lights came on, the problem is your Speakers' power supply stage, either a fuse opens (most likely) or something got burnt from the plug to the transformer, then to the rectifier diodes (got shorted then fuse opens) or to the regulator section. check also the power switch for poor contacts, of course you may need to open the speakers, If by any chance you hear something like hum.... check for open signal wire, check the IC amplifier also, a bad IC amplifier produce no sound or produce a loud humming/cracking sound. If you have no idea of what im talking about, have it checked by a technician. thats it.
Yes it can be fixed but is the catch your Technician should see ( check the woofers powersupply ie the Transformer could be burnt if i is burnt no voltage will go to the system and this ,means no green light no speaker sound.
Now if there is voltege going to the circute then a component is burnt could be a an IC or Transister , Diode etc this area should checked .
The amps are 8-pin CHN 4558CN [K1D142]
and 8-pin PHIL TDA8199 [LD8136]
The Voltage Regulator is a 14-pin LM324N
There is a 3-pin LM7812CN 12-volt regulator...
They are in the sub-woofer housing which is held in place by tape so it can be pried off if done with care.
Hope this helps.
If you have all the cables and wires in place I would appreciate knowing the connection sequences (someone cut all the wiring to the set I have.)
Hi Mr Goodrice
You may friied the capacitor of power regulator, or power suppy module. have to get to some place to make the change, or you have to RMS the speakers to US to replace. no other thing can be done. also you need a special conector and transformer to get the right voltage there.