(UPDATE) ALTEC LANSING 604-8G PLEASE HELP ME

[estatesalesgalore]

Hello everyone

I know its has been a few weeks since we have spoken last and i wanted to give everyone a update.

Ok so my brother has been a **** and wont help me so i deceided to try this myself. I carefully took apart the driver, and what i found i do not think is normal. There are a bunch of small liquid type pink/red spots, and there are 2 piece which appear to be broken. I have included a photo, and i put arrows in the photo which indicate the breaks and pink/red spots. I would appreciate any advice on where to go from here. I did not notice any broken, or fried wires but yet I am not a expert. I am not sure if those 2 pieces are supposed to be broken and would appreciate it if someone would let me know.

[zelgall]

It looks like an aftermarket diaphragm. It is a bit unsual to see both of the leads broken on one driver. Normally, one goes and the driver stops working. They're easy to replace, just carefully pry the diaphragm up a small amount at a time, working your way around the metal base below the black plastic part. Gently pull the whole out and save it as a momento. Buy a new diaphragm from Great Plains and reinstall it with care. There are alignment pins which make positioning easier but you will probably need a kit to convert the conectors on the dust cap to the newer style spades.

[bowtie427ss]

It is a bit unsual to see both of the leads broken on one driver.

<font size="2" face="Verdana, Helvetica, sans-serif">They don't look "broken" to me, they look quite thoroughly fried from being grossly overpowered.

Just my .02 of course...........

[estatesalesgalore]

Thanks guys

Now I have no idea what the spade or dust cap is... a photo with text or just a good description will help. Or if you could save my photo and circle the dust caps and spades.

[estatesalesgalore]

This is in refenence to the guy that said they looked growsly overpowered and fried.If they were grosly overpowered is it possible that permant damage could have happened to this speaker???

[bowtie427ss]

The "dust cap" is the cover you removed to expose the diaphram.

Spade refers to the type of terminal the replacement diaphragm will have, they don't use screws like the originals. It's just a 1/4 inch flat metal lug that accepts a push on connector.

I think if you mention this to the folks at GPA they can provide you with a "kit" that replaces the original connector wires inside the cover with new ones using the proper connectors for the new style phrams.

If when you remove the bad phram the voice coil has become delaminated (come apart), you need to make sure you get it (the loose wire) all removed from the gap. You'll know immediately when you remove the phram if this is an issue or not.

There is an instruction sheet at the GPA website that gives detailed instructions on replacing your phram, and cleaning the gap.

[bowtie427ss]

If they were grosly overpowered is it possible that permant damage could have happened to this speaker???

<font size="2" face="Verdana, Helvetica, sans-serif">Since it's likely an aftermarket phram those lead in conductors "could" be of a guage that simply couldn't handle the normal rated power of the HF driver, but i'm pretty sure they're only rated at 10 watts continuous. IMO, it took a transient of many times 10 watts to effectively burn away as much of BOTH of those conductors as is missing.

It'll be interesting to know what you find once you pry the phram off the locating pins and get it removed.

[bowtie427ss]

After looking at the pic again, i'm not convinced that's an aftermarket phram, appears to have the altec "L1" stamp. Numbers on the bottom of the mounting hub will tell us for sure.

[dgwojo]

That phragm looks like an Altec 23744 light, too bad it's leads are that far gone, might still be repairable with a little patience, I've dealt with worse!! Dave.

[cclark65]

yea, I have repaired the leads that are broken like that also, but I don't count them as very reliable unless your going pretty easy on them.

Some of them lasted months, some lasted minutes.

However, if you've got the time and skills, it can't hurt to try! If you don't, send it to me and I'll give it a shot. If I can get them soldered back, I'll ship it back and you can try it out. The only thing you'll be out is a little shipping $$. (why would I do this? I am just a nice guy and like to work on stuff!)