Very great read!

And reminded me of some trees I climbed looking for root causes on these damned lovable decks!

Sonavor:I was reviewing my pictures of the board and the repair steps and realized something. When I reflowed the solder connections on that small processor board, I only did the solder joints on the trace side. That board is a little tricky as there are a number of solder pads (as for those small 4.7nF caps that are on the component side. In those cases, that is the connection to ground. So I hadn't reflowed that side (they are kind of hidden) and I bet that was the source of the problem.

I got present to that problem when C28 inside the processor "can" didn't ground. Boy! Did that lead to a wild goose chase and much frustration!

Lol the same thing happened to me when I read it.

He would not be denied by the 8002.

pfcs49 wrote:

I hadn't seen this thread until your link to it about the grounding spring on Rajod's 8002 thread. And I bet I know you from VE and you have a PX-2 Yamaha as well? And we both nibbled on a PX-1 that left a bitter taste in my mouth? You're in Oregon? I'm in NJ

Hi Phil, I am just a simple caveman living in a small town in Texas. I am afraid I don't have any Yamaha turntables although I have a lot of Yamaha speakers, preamps and power amps (quite fond of them).

pfcs49 wrote:

How can I get either a printed or digital copy that you mention here? I am going over my VE printed copy which resembles the Beo copy (in that much is illegible or barely so) and copying from yours some of the "cues"

Do you mean the service manual?

-sonavor

sonavor wrote:

I am just a simple caveman living in a small town in Texas

As you see in Johns avatar, he even has long hair and beard, uncombed. NOT so, he is a truly Beoworlder, helpful, friendly and very knowledgeable in all what he does, his threads interesting and something to learn from.

I have a broken beogram 8002. The "motherboard has a broken corner, and the push-keys unit does not function. everything else should be fine. 

All parts are available, except the platter. (made a clock)

Cosmetically it is very nice. Happy to give away parts for any repair project.

I have a broken beogram 8002. The "motherboard has a broken corner, and the push-keys unit does not function. everything else should be fine. 

All parts are available, except the platter. (made a clock)

Cosmetically it is very nice. Happy to give away parts for any repair project.

Keep that parts machine handy.   I might need some getting my third 8002 working.   Not in big hurry though. 

"Do you mean the service manual?"

Yes-the service manual with higher resolution, please.

Well, I,m not a caveman-just a 67yo VW mechanic in a wheelchair. Nice to find someone else who can actually repair things. We are a vanishing breed!

pfcs49 wrote:

Yes-the service manual with higher resolution, please.

You must be referring to the schematic diagram with color highlighting on page 4 of this thread. That isn't from a service manual PDF that is available. As mentioned in the page 4 posting, I created that drawing myself from a scan of the original page (from a hard-copy of the service manual). Then I used Photoshop to add the color highlighting to help me trace that particular part. The only PDF versions of the manual I have are from VE and the service manual section of Beoworld (requires Silver level membership). The VE PDF version of the manual has the full schematic as one image in the PDF while the other PDF scan has the schematic broken into multiple images. Neither of those PDF versions are super high quality. I just scanned that one part so I could show the problem I was trying to solve. Most of the time I work from the hard-copy service manuals.

Not too long after putting my Beogram 8002 back in service (the turntable that started this thread), its display started going on the blink. It doesn't affect the turntable performance so I have lived with it for a while as I didn't feel like re-opening this unit.
Lately, I have been working on some Beogram 4002 turntables so I have been in turntable repair mode. I decided it was time to go in a fix this Beogram 8002 display.
Here is a picture of the problem. You can see that 45 RPM displays okay but standby and 33 RPM have problems.