Disable Onboard Speaker 1.6 Mark 4 and 5

Is there a way to disable the on-board speaker other than just unplugging it?

I ask the question this way because I have two 1.6 units with working headset jacks, the machine thinks sound is happening. I cleaned and worked the plug around in the headset jack. No joy. No beep at boot so not O.S. related.

What should the "readings" be on the motherboard where the headset jack is soldered. Is there a way to hot-wire around the speaker jack as a means of testing for a stuck switch in the sockets?

I also checked continuity from the base on the speaker plug to the pins. Tested speakers and they are o.k.

Now what?

Any ideas would be appreciated. LAQGZBM and NTWGZBM.

Jeff

 

Check the Microsoft volume control to make sure that it is not muted. U should find it in the control panel

 

Been there and done that when I was running Microsof. But even with no O.S. would I not get a beep after the Bios self test? No beeps no nothing.

Thanks

Jeff

 

I'm not sure I think I get a beep at POST but I cant remember now. I know that the speaker and volume control is in the OS.

 

No beep at post during normal operation... If you hear sound from the jacks but not the speakers... You have bad speakers... Believe me!

 

I'm assuming that you're talking about a CF-29.... but anyways... can't you disable it in the BIOS rick?

 

Update: There is no sound during POST or booting up at least with my unit.

 

I don't recall the speaker being in the BIOS of any CF-29... But I am too lazy now to go down into the shop to see. Still... even IF that were the case.. . The whole sound system would be shut down with nothing from the jacks.

He has bad speakers... I see this all the time.... They are around $14 each and easy to replace.

 

There is nothing in the BIOS to disable the speakers if I recall correctly. I think that it's a driver problem.

 

Just tested three speakers. One new that I got from TB a while back, one used but good and the one on the Mark 5. No beeps or anything else.
If you hold the F7 key at post normally it produces a beep whether or not there is a HDD or CDROM in the unit. I just tested that function in a Mark 3. Are the 4s and 5s different?
Read it in a manual somewhere and also in this forum. But no sound on the Mark 5. I did this bit before with the Mark 4 and set it aside as a non-issue because I really don't like all that bleeping beepin'.

Now what? I'm thinking the shop.

Thanks for the replies.

Jeff

 

I would think u have to
right click on the volume icon
adjust audio properties
under speaker settings click ADVANCED BUTTON,
under the speakers tab make sure, pc speaker is selected in the dropdown.

In Linux u can go to
KMix
settings
configure channels
add the main speakers to the visible channels.

 

An old trick I use is to hold down "any" key during post. The bios sees it as a keyboard error and beeps.

 

I thought about this a long time before posting this question. It is an intriguing problem.

1. I have enough sense to try a different speaker or two.(actually 3)
2. The headset jack works fine after the O.S. is loaded.
3. There is no sound (beep) even from the rear speaker jack when holding a key down at boot.
4. There is no sound (beep) when shutting down using the power switch even from the rear speaker jack.

I tested this just now with a Mark 3. I plugged a speaker into the rear jack and to confuse me all the more error beeps and shut-down beep came through the plugged in speaker (not the on-board one)((just to be clear)). Are the Mark 4 and 5 that much different?

So I am back to:
1. The switch in the headset jack. How do I test it? This doesn't quite fit as again there are no error beeps from the headset.
2. The beep sounds are disabled either intentionally or otherwise in the Bios. (see the part several posts back where I pulled the CDROM and HDD and got sounds (error beeps from the Mark 3 speaker).

I'd like to have a working Mark 4 or 5 to play with just to sort this out in my own mind.

My next step will be to flash (or whatever they call it) the Bios on both units.

 

As I recall.. Someone mentioned that there can be some sort of goop (technical term) that can build up on the back jack and mess up the speaker... Your only other hope I think.

Did you just plug in the new speaker and test it or did you actually mount it to ground the base?

 

I grounded the base with a short jump wire and scissor clips.

 

Rick,
Sorry about the short answer I had to go feed some critters and park the jeep in the barn. Feels like rain.

I will confirm here in the next hour that I had a good ground.

Thank you.

Jeff

Make that alligator clips.

 

Was this a test to see if I really had the case open or what. This Mark 5 now wears a completely new speaker installed exactly as the old one came out. The base magnet is isolated from the copper strip that is part of the heat sink with a piece of foam, the speaker is sitting on an o-ring and all the clips are shielded from the rim of the speaker by Kapton tape. In other words isolated from any ground. Is this right?
Like I said it's exactly as it came apart. Oh yeah, and the speaker doesn't work.
Do you have a picture of one installed right on a Mark 5?
If the copper gizzy (tech term) is supposed to ground the magnet, this would be an easy way to disable the speaker.
The new speaker looks cool in there though.

Jeff

 

Maybe the speakers work and your ears are bad? Now how do you test an ear? Or better yet what does a new ear cost? Does anyone have a Heartland part number for a pair of ears? Are they sold in sets or can you buy them individually?

 

Barrel of laughs ain't cha. Do you have a Mark 4 or 5 you could whip the bottom off of? Take a nice little picture etc.

I like your avatar. Looks like me in the winter. Gray beard and gray tape rule.

 

All I got is a CF 29E Mk2 and a CF 29B Mk1 parts buggy. I did find this photo via my favorite reference photo site (fleabay).

avatar is Red Green. A PBS show that is a must see.

 

Exactly. The image is perfect. Is there insulating foam under the copper strip that goes over the speaker?

Jeff

 

2 More photos

 

I have no idea. I stole the photos from fleabay. The insulation shouldn't matter. The 2 wires just go to a coil that works like an electromagnet. The wires get power and move the metal piece that is connected to the paper cone back and forth to make noise. For this simple application polarity doesn't really matter.
Why Panasonic electrically insulated the speakers I don't know. I am not sure I have ever seen a speaker that had either wire connected to the metal housing.
Earphone/headphone jacks work like this. With nothing inserted it makes a connection via a small spring steel contact to send the signal back to the speaker(s). When a plug is inserted it pushes the contact away and reroutes the signal to the external device.
It should have 3 connections and the case ground. The long barrel is the so called neutral and the tip is the switched on/off signal.
If you have an old microphone or earphone you can cut the end off and test with it. Solder the cut cable to the speaker and plug it in to any audio device.
Another idea. Did you happen to turn the volume down with the hotkeys?
I am fairly certain the hotkeys control things at the board level and independent of the OS. Boot the thing and Crank the volume with the hotkeys.
Sometimes devices are wired with the headphones on a low output and bypassing controls. That would explain the jack working.

Shawn

 

The sheet of copper under the loudspeaker works as a cooler and has to spread the heat from the chipset. The loudspeaker plug found his socket near the memory slot.

 

The situation here is that I bought the Mark 5 with the idea of swapping the MB into the Mark 4 which was the first no sound unit. Of course it turns out the Mark 5 doesn't have sound either. And it's pretty.
Does anyone care to take the HDD and CDROM out of their Mark 4 or 5, hold F7 down (or any other key as deere suggested) and see if they get a beep tone on boot. I KNOW it beeps with at least one Mark 3. Make that three, I just checked.
I'm going to play with a cut off plug a bit and then I think I will re-flow the solder on one of the units at the headset jack.
I'm not too sure the second part of my signature is completely accurate.

Jeff
And thank you all.

 

O.K. this is solved and I would like to know WHY.

I finally got around to running pana restore discs on the Mark 4. Did it a couple three weeks ago on the Mark 5. Sound was magically restored.
Then I switch to a Linux disc and the sound is still there.

So, the system restore discs tweak or un-tweak the bios or some other hidden file in some way I assume. By the way the Mark 4 loaded the new XPPro version with the sound muted in the volume icon. So SOMETHING was telling the sound to stay off. What was it?

Any insight?

Jeff just curious

 

It was the winged monkeys. I'm telling you.

mnem
*Places order for RAID Spray for LARGE Pests* Dude... Amazon.com has EVERYTHING.

 

So you don't know either.

 

My guess would be the same hotkey driver issue that has plagued our little beasts since day one on this forum; I suspect that when it gets installed incorrectly, or that procedure call gets corrupted in the audio driver, then it gets stuck in "muted" mode and you can't get it out cuz the hotkey doesn't work right.

mnem
*Best educated guess*

 

That's better. I knew you could do it.

So the procedure call occurs after the bios does it's thing and before the OS fires up? Or as a hidden part of the bios? Or does the audio driver have memory of it's own?

Anyway they work perfect now. And as soon as I replace a touchscreen the Mark 5 will be a dandy. Though I do like it without the touchscreen layer and screen protector. Very bright.

Thanks,

Jeff