STTNG crackling sound

[Gonzo]

Hi folks, very odd issue but I'm sure that one of you clever fellows will know what's going on.

 

[Deleted member 2463]

checked the cables are near the lcd?

 

[Deleted member 2463]

and check the sound board ribbon cables too - retreat.

 

[Gonzo]

checked the cables are near the lcd?

Yes Neil, I took everything off and back on again. Checked the ribbon and the LCD connections.

I'll check again tomorrow just to be sure. Thanks

 

[Poibug]

Does it change if you adjust the volume.
Are the screws holding the board tight?

I had similar issue once, and I fixed it by replacing the big capacitors.
Don't forget, that game us over 25 years old and that's getting old for a capacitor!

 

[Gonzo]

Does it change if you adjust the volume.
Are the screws holding the board tight?

I had similar issue once, and I fixed it by replacing the big capacitors.
Don't forget, that game us over 25 years old and that's getting old for a capacitor!

Yes indeed, the louder I turn up the volume the more clarity the sound has.

 

[J.C.Rox]

Does it change if you adjust the volume.
Are the screws holding the board tight?

I had similar issue once, and I fixed it by replacing the big capacitors.
Don't forget, that game us over 25 years old and that's getting old for a capacitor!

+1 for replacing big caps, was also on my sttng and fixed the crackle, I was a newbie at the time so sent board to @pinballmania

 

[myPinballs]

Not always as simple as the main ac filter caps I’m afraid though and not worth just changing random parts. I’d be starting more in the tant cap area of the audio amp/pre amp section.

if you want to send to me @Gonzo I can sort out for you no worries

 

[Deleted member 2463]

Just a recommendation for Jim’s board repairs my BoP board was dead and Jim brought it back to life. Turnaround was a week.

But also pinmania did a great job overhauling my nine ball!

Sent from my iPhone using Tapatalk Pro

 

[Gonzo]

Not always as simple as the main ac filter caps I’m afraid though and not worth just changing random parts. I’d be starting more in the tant cap area of the audio amp/pre amp section.

if you want to send to me @Gonzo I can sort out for you no worries

+1 for replacing big caps, was also on my sttng and fixed the crackle, I was a newbie at the time so sent board to @pinballmania

Just a recommendation for Jim’s board repairs my BoP board was dead and Jim brought it back to life. Turnaround was a week.

But also pinmania did a great job overhauling my nine ball!

Sent from my iPhone using Tapatalk Pro

Thanks folks. I've had a few bits and pieces from Jim before so that sounds like a plan.

As much as I'm happy to get my hands dirty, a circuit board is probably a step too far.

 

[M4carp]

I can solder pretty good but I don’t have the skills to diagnose faults apart from seeing the obvious things.
I wouId send it off to the experts to diagnose and repair. Be back in no time.
Sound boards can be pretty tricky to track faults down.

 

[Poibug]

Not always as simple as the main ac filter caps I’m afraid though and not worth just changing random parts. I’d be starting more in the tant cap area of the audio amp/pre amp section.

if you want to send to me @Gonzo I can sort out for you no worries

With regards to capacitors, that are over 25years old it is good to replace them anyway just for preventative maintenance , if someone is comfortable in doing them, and their skills don't wreck a board.
But I understand what your saying.
In this case sending to @myPinballs makes sense, as sure he will get it back to the op in 10 days or so.

 

[Gonzo]

With regards to capacitors, that are over 25years old it is good to replace them anyway just for preventative maintenance , if someone is comfortable in doing them, and their skills don't wreck a board.
But I understand what your saying.
In this case sending to @myPinballs makes sense, as sure he will get it back to the op in 10 days or so.

Yeah thanks, Jim is getting it this week so it should all be sorted soon