Accident:9V on OPL3

MIDIbox FM
1

Hi everybody,

yesterday I accidentaly put +/-9V on my opl-pcb for about 5 seconds until I noticed my error. The opl-chip got pretty hot,the yac512 stayed cool.

My question is: Is there any chance for the opl3 to survive that accident or should I desolder it and put in a spare? And what about the yac512? May they be damaged too? As I mentioned above,these chips stayed cool.

???

Any suggestions?

THX

Brother303

2

Why not try it and find out? :wink:

3

hi styrd,

I didnt finish the mbfm so far,so i cant check if it still works right now. Think I´m going to upload the application and check first.

Anyone else any experiences with this issue?

Thanks lot…

Brother303

4

Ahhh… no point in speculating now… Just try it, and if there’s a problem we can attack it.

5

Yes, I has problem with not connected ground between +5V ground and +/-12V ground.

My oscillator was very hot, and others part also, but I only changed this oscillator, created connection between grounds and every was good, so I think try finish , upload software and have fun from this super sound.