igt i game 3902 sound only one side

[bud0143]

hello everyone hope all are well and safe. my i game stopped having sound out of right side, i also have a s2000 with same problem. how do i fix it.. thanks

[rickhunter]

Do you have a spare multimedia lite board to try out?

[bud0143]

Hi, no spare parts, where do I get one?

[bud0143]

This is a picture of my S2000 board

[rickhunter]

Oh, you don't even have a multimedia lite board (for sound simm).  So you may have either a blown speaker, wiring issue, or bad amplifier board.  See if you can switch the speaker wires coming out of the amplifier board to see if the sound moves over to the other speaker, if it does, your speaker is good.  Then you can proceed an test the wires to make sure there is continuity from the speaker to the amp board.  If that is ok, then I would try another amp board to see if it fixes the issue.

[RB]

The S2000 likely has a stereo harness in the top box but without a MML you only get sound from the left speaker. I would not recommend using a MML & SIMM on that 501 MPU. It will produce static in the speakers. You can change it to a mono harness or just wire both speakers together.

The 3902 game does likely have a bad MML. I have plenty if you need one. PM if interested.

[bud0143]

Thank you all for your help. I order amp board today i hope all stays safe and well

[Tilt]

Hope you meant MMLII sound board.  Amp board failures are really rare.  MMLII boards are usually responsible for loud popping noises and static (or no) audio out of one channel.  It's normally caused by one of four capacitors failing. 

RB is correct on the S2000.  No MMLII board with a stereo wiring harness will result in only audio out of the left speaker. 

[channelmaniac]

I moved the thread out of my repair logs section.

Thanks.