Playchoice 10 Dual Monitor has no sound

[shane7951]

A couple of weeks ago the sound on my dual monitor Playchoice 10 went out. The speakers aren't hissing or anything. I made sure the volume knobs were up, everything else works great. I'm not very experienced with arcade machines so any help would be appreciated.

[fluid_matrix]

A couple of weeks ago the sound on my dual monitor Playchoice 10 went out. The speakers aren't hissing or anything. I made sure the volume knobs were up, everything else works great. I'm not very experienced with arcade machines so any help would be appreciated.

Cheapest and easiest thing to try, after ensuring all connections are still good, would be a cap kit. Those have a Sanyo 20ez monitor. I highly recommend changing all the caps out on both the audio board and monitor chassis. You can get a deluxe kit (monitor and sound) for under $20 shipped from Bob Roberts. If your decide in just the audio board kit, that one runs about $12 shipped.

www.therealbobroberts.net/caps.html

[shane7951]

Cheapest and easiest thing to try, after ensuring all connections are still good, would be a cap kit. Those have a Sanyo 20ez monitor. I highly recommend changing all the caps out on both the audio board and monitor chassis. You can get a deluxe kit (monitor and sound) for under $20 shipped from Bob Roberts. If your decide in just the audio board kit, that one runs about $12 shipped.

www.therealbobroberts.net/caps.html


Thanks man. Is this easy to do? I've never done anything like that before.

[fluid_matrix]

Thanks man. Is this easy to do? I've never done anything like that before.

If you aren't experienced in soldering, I'd recommend having somebody else do it for you. A simple mistake can ruin the monitor chassis PCB. I consider myself fairly experienced, but had somebody else do my DK Jr. for me.

Removing the monitor is as simple as undoing 4 bolts and pulling the complete chassis out. From there, you will need to remove the board. I recommend taking pictures of where everything goes so you don't have any questions when putting it back together.

If you have any questions, please don't hesitate to ask.

[98PaceCar]

If you aren't experienced in soldering, I'd recommend having somebody else do it for you. A simple mistake can ruin the monitor chassis PCB. I consider myself fairly experienced, but had somebody else do my DK Jr. for me.

Removing the monitor is as simple as undoing 4 bolts and pulling the complete chassis out. From there, you will need to remove the board. I recommend taking pictures of where everything goes so you don't have any questions when putting it back together.

If you have any questions, please don't hesitate to ask.

If you don't have experience working on a monitor, DO NOT EVEN ATTEMPT TO FIX IT. You can very easily give yourself a nasty and possibly fatal shock if you don't discharge the monitor properly. Soldering experience is the least of your worries when doing repairs like this.

Your best bet is to find a local repair guy that will either do it for you or teach you how to do it. It's not hard, but if you do it wrong the results can be disastrous.

[fluid_matrix]

If you don't have experience working on a monitor, DO NOT EVEN ATTEMPT TO FIX IT. You can very easily give yourself a nasty and possibly fatal shock if you don't discharge the monitor properly. Soldering experience is the least of your worries when doing repairs like this.

Your best bet is to find a local repair guy that will either do it for you or teach you how to do it. It's not hard, but if you do it wrong the results can be disastrous.

discharging the monitor, while it can be "shocking", is typically over-rated. Watch a few vids on youtube and you'll soon find its easier than one would think. I was worried at first, but after discharging my 20ez, realized it really is easier than we are led to believe.

[shane7951]

Yeah I'll probably end up just having a repair guy come out to take care of it and I can learn along the way. I also have a 1979 Stern Dracula pinball machine where the right flipper barely responds and when you turn the machine on it makes a "swirling" noise of every sound it produces.

[98PaceCar]

discharging the monitor, while it can be "shocking", is typically over-rated. Watch a few vids on youtube and you'll soon find its easier than one would think. I was worried at first, but after discharging my 20ez, realized it really is easier than we are led to believe.

It's only over rated until you screw up. While no, it's not hard, doing it properly and safely are not something to take lightly. Having a casual attitude about it will only lead to disaster.

But hey, I've only been collecting and repairing arcades since 1997 so what do I know. I'm sure YouTube is a much better teacher than someone with 16 years of experience.

Good luck to the OP. I'm out of this one.

[fluid_matrix]

It's only over rated until you screw up. While no, it's not hard, doing it properly and safely are not something to take lightly. Having a casual attitude about it will only lead to disaster.

But hey, I've only been collecting and repairing arcades since 1997 so what do I know. I'm sure YouTube is a much better teacher than someone with 16 years of experience.

Good luck to the OP. I'm out of this one.

Wasn't saying it's something to be taken casually. Just saying that it's typically over dramatized about how difficult it is to discharge the monitor. I'm not trying to claim I'm any professional or anything, but discharging and removing my 20ez from the cabinet was the least of my worries when it required a cap kit. Taking the necessary precautions, you should still be able to have that monitor out of the cabinet in 15 minutes.

And honestly, IMO, YouTube can be a better resource for learning things over trying to visualize something explained via words and sentences in a forum, as one can see exactly how it's done. I'd never discharged a monitor before either, but yet felt more than comfortable enough after watching a video or two. Everybody has to start somewhere, no?

[Graham Mitchell]

I had a donkey kong with a similar problem.

Upon inspection we found one of the wires connecting the speaker to the pcb was disconnected. We reconnected it and realized it was cut for a reason--the machine was making a horrible buzzing noise. So, no sound at all sounds like the speaker may not be connected. Did you check that?

We were able to fix the problem fairly easily by recapping the audio board on the monitor chassis, like the original responder to this thread suggested. It's not part of the monitor, so you don't need to worry about discharging it. Nintendo just put all their audio stuff on the chassis for some reason. The board separates from the chassis if you disconnect a couple wires and unscrew one screw...at least that's how it works in a donkey kong. Not sure about a pc10.

Now if you're going to remove or alter the monitor I would be worried about a shock. Leave that to the pros.

[Fellpuppet]

I need some help too if anyone can point myself and a buddy in the right direction. Light or no sound its a single pc10 board when another main board is in sounds are fine But with this board its gone or VERY light.

I know that pins 1 and 2 of the CPU outputs the sound and that pin 20 on the main pcb edge connector outputs sound, I'm trying to figure out what's the the sound circuit by checking what's between CPU pins 1+2 and the edge connector pin 20. Trying to find which part is bad...

What I did:
- Replaced the CPU and tested each pin connection
- Replaced capacitors C37, C24 and C30

Next, I plan to:
- Replace capacitor C32
- Replace chip LM3900N
- Replace chip TC4066BP

There has to be a fix for this Or at least a answer to why or what thanks everyone