[antlestxp]

I am leaning that way. The sensor arm on the 8002 looks nicer too. The left and right arrows actually do something. Was there an issue with the original ribbed design? I don’t notice any performance difference between the two. Seems to have less static than the newer platter.

[antlestxp]

Got it up and running. Circled back to the basics. Checked my solder work. Pulled as much as the old solder my vacuum could. All new solder. Cleaned and checked all mechanicals. Then checked my work and calibration of the control panel. It was the control panel. My adjustment was close but not close enough. Had the relocate the new receivers into a better position then readjust with the screws. Soldered a connector to the panel I could leave measuring equipment to made quick work of it. Now I just need to finish up the rest of the adjustments to the tone arm.

 

Thanks again. This is my 4th and probably final beo. RX2 TX2 4002 and now this 8002. Every table I have wanted over the years.

 

8002 up and running

[antlestxp]

No I’m still working on this one. I meant I got a 4002 running from your blog a while ago.

[antlestxp]

Very helpful. Your posts got me through a 4002 restoration! I used a camera to determine the emitter was faulty.

[antlestxp]

sonavor wrote:

Sorry, I didn’t read the previous threads closely. It sounds like you have set the steady-state levels on the scanning buttons where the LDRs measure 620 mV. I would connect an oscilloscope to the sensor signals and see if any are showing any signs of problems. Here are the sensor measurements I captured on a Beogram 8002 a little more than a year ago. The oscilloscope measurements are towards the end of the post. There are also photos of where the test probe wires are soldered to. -sonavor

Thanks for pointing me in the right direction. Looks like you probe at r11 and r8 for the 2 receiver diodes. Do you know what part number the receiver diodes are if they are the problem.

[antlestxp]

I have replaced the emitter diode on the encoder. I can’t find the correct part for the 2 receivers.

[antlestxp]

Everything in the control panel has been replaced and adjusted to spec. New bulb and photo sensors went in. It seems like an issue with the rotary encoder. The arm moves for a couple seconds before it stop. I’m going to check the connections between the encoder and cpu again when I have free time.

[antlestxp]

Die_Bogener wrote:

You start a Beogram to play without a record? Nice, you will destroy the MMC if it continues. That’s a safety feature.

As you can see there is no cart attached. If a 45 is placed on the platter it does the same as well as a 12. It is clearly stopping short of the record detection process.

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