Amp Doctor! Please advice.

Schon

Member
Hi,

I just bought a Roland JC120 last week. Its very loud! Have good shimmering cleans, as u would a JC, & respose well with pedals.

There r some problems, though.
- the vibrato & chorus doesn't work. i think it needs an IC replacement.
- there is a 'thud' sound, whenever U switch it on.
- there r still audible sound, from your guitar, even when the vol knob is turned to '0'.
- it eats the internal 3.15A fuses like peanuts.

Anybody out there who could diagnose this?:(
 
I m in JB, so, I ll try d local techs 1st.. very hard to find here. most are TV & home theater specialist..
Anyway, thax 4 all d feedback..
 
I m in JB, so, I ll try d local techs 1st.. very hard to find here. most are TV & home theater specialist..
Anyway, thax 4 all d feedback..

they are good enough to solve your problem,

the electrical principles of amplifier are all the same.
 

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