Yes they are very nice Chris I will be using the technigues you are Soren Mexico shared with me this spring/summer.

The 3300 CD is done and it works. The lid no longer bangs when it shuts. I did some fiddling with the gearing as well adding a little lube. the belt is in fairly good shape but I should probably replace it soon. I also replaced the rotting rubber lid stopes with felt.

Now when I touch the play button it takes about 3-4 seconds for the door to close the CD to spin up the first track read and the music to start. I have so far mostly been feeding it old scratchy CD's and it has only dropped 1. the sound is clear and very detailed. I have yet to try a CD-R yet. it wouldnt play them before but I could probably live without that option.

I cant make any focus adjustments (if its even necessary) because the information to do that is not avilable in the service manual on this site and I dont see any old ones available at this time. Maybe it doesnt need it anyway.

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Eugene,

This is the standard Philips TDA1541 circuit.

You can make the initial startup much faster by doing my regulator mod, and you can measure the laser current to 50mV, all as shown in my pdf here.

yachadm wrote:

Eugene,

This is the standard Philips TDA1541 circuit.

You can make the initial startup much faster by doing my regulator mod, and you can measure the laser current to 50mV, all as shown in my pdf here.

link

If there is only one pot on the CD servo PCB, it's for the laser current only. And therefore there is no focus adjustment.

Menahem

Thanks Menahem I may need that info for the mess I picked up last summer. This CD player is working as good as I could hope for. Reads CDs and now reads CD-R's within a second or two. The sound is lovely. No sense in rocking the boat at this point

The 3300 I picked up last summer will play CD but struggles with CD-r (ususally wont play them) Its biggest fault is playing the first disc after an extended period on standby   (a couple of days). doesnt like some CD's, new, old it doesnt matter. It does seem to like a Shirley Bassey CD which is what I would use to get it going. Once it "warms up" and plays through a CD or two its fine for the most part.

Considering the deplorable conditions in which it was stored for over a decade I kind of suspect some dried up solder joints. My next step is to open it back up and go over it pretty muck joint for joint.

Chris these look great - Well done!

Eugene - if you struggle to find the correct belt for the lid mech on your CD3300 I can help you there. Maplins sell a 46mm cassette belt which is a perfect fit, part code

Thanks Chris I may take you up on that real soon.

Not really relevent but here are two slightly different display panel designs for a Beocenter 7700. Just thought it would be cool to post a pic of them together before they get stored away, installed or passed along.

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Medogsfat wrote:

@ Step1 - bring 'em on down lad.....

Chris.

I would love to, but they are in Hereford right now !!! I keep asking for them back but my mum seems to be reluctant to part with them atm. I think she prefers the slim profile to the S-45's, as they just moved into a 14 century farm house so speakers in general don't really suit the overall look of the place!

I find your methods quite interesting Chris. My mums o/h is a picture dealer and often restores frames. I am sure he mentioned oil paints for the grain but I like the pen idea!, sounds so much easier and less messy!! I really do think miy speakers would be very difficult as the damage is significantly worse and involves the metal trim 🙁

Depending of course on the level of damage, the alumium trim shouldn't present too much of a problem. I was a metal worker in a former life😐

A photo would be useful.

Chris.

Undergoing sounds test. Everything appears to be working. tape works, tuner is good and all presets. IR is good. Display is good. Sounds real nice. The only small bug is the tone arm drop about 1 or 2 seconds into the first song (parallel Adjustment ?). The heat sinks off the power amp side are even, runs cool at lower volume levels. the sink off PCB 4 (small power supply board behind the transformer can heat up the sinks more so than the amp side. even at moderate volume levels (34).

What a magnificent piece of equipment. I really like this a lot.

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This is my newly acquired, 'poor condition' BC9500. I haven't delved in much. mains cord cut.  But It's in better condition than I hoped. Bought it off Craigslist from Florida, 2190 miles away. Managed to get the CD door open with the screwdriver'trick' (thanks, forum). But the mechanism is a little loose from shipping, so I had to put the transport screws back in to align it. Glad they were there.  Typical glass loose,but it's all there, save a fingernail sized chip that's mostly out of the way. (anyone ever tried repairing chips like this?) I'm missing half of the plastic channel for the lower glass CD side. The most curious thing so far is the screw on the Cassette side. I tried to open it like the other, but couldn't. There's no slot in the screw head! Is that unusual?

Patiently waiting for the P45s I just bought to go with. Hope shipping goes well.  I'm still fiddling with my Beocord 8002. one channel gives nothing but rumble.  The suggestion was it might be in the signal path, but I switched the tape mechanism to a different 8002 (better condition) and the problem persists. changing RCA cables does switch the sound.  Any thoughts?

Cheers, Brian