[69er]

Found something in a store for students of architecture. It´s 0.5mm PVC. Looks exactly like the original.

[69er]

Hi quatttro,

where is the relay in a Beogram cd?

best regards

69er

[69er]

I checked the secondary keyboard several times (as i had the issue of not sitting correctly with another BS9000). Bu – no – it wasn´t that.

Now i am somehow guessing (after trying to understand the circuit) that the IC14 on PCB32 (74HC138) could be a candidate. I ordered one and will try to exchange that one. Somehow everything around keyboard one and two goes through that IC.

Am i totally wrong?

 

Best regards+

69er

[69er]

Hi Mark-fs,

thank You for the hint – i will do so.

What i am wondering, that both (the cd allocaton buttons plus the door opener button) and the main keyboard are not working. Arent these two seperate cables, or do they connect to the same IC and PCB?

Best regards

69er

[69er]

@Mark-fs: what does put a scope mean?

@Beobuddy: which IC should I look first?

 

i don’t have an oscilloscope.

 

thank you all for your help

 

69er

[69er]

Am I really the only one who has/had this issue?

best regards

69er

[69er]

So, I dismantled close to everything. What a mess.

followed the cable from the lid opening and cd buttons to the respective pcb.

attached and loosened it all several times.

assembled everything together and …

 

 

 

 

 

 

 

 

… nothing. No change. This beosound currently just wants to be controlled remotely.

 

Doesn’t want to be touched directly ?

 

i think now, I need a replacement pcb, just don’t know which one.

 

i think I checked all TMs

 

best regards

 

69er

[69er]

Really curious – never saw this behavior before.

i could live without the keyboard, but always opening the lid by hand (against the spring) doesn’t make fun.

 

what I also don’t understand. Why both sides don’t work, assuming they are not connected via one cable

69er

[69er]

Update

 

you need to put the glass on.

now tm71 runs through and states ok.

i can now play radio and cds with the remote.

 

buttons still dead

 

best regards

69er

[69er]

Hi Bill,

thank You for your hint.

unfortunately it isn’t that easy. I was hoping for a quick win.
i checked mentioned cables and now I am one step worse.

still no button response and now

only radio is working.

Tm27 does show the slc err, but in tm71 the whole unit shuts down after opening and closing the door.

Before my opening, tm71 was running quite good. what did I made wrong?

best regards

69er

[69er]

i found the error – see my other post

[69er]

Its still not winding as it should – any idea here?

[69er]

And now it works again

 

 

i am getting mad

[69er]

It’s totally weird.

now sometimes it works sometimes not.

after rewinding 5 times in both directions I reassembled the whole thing together and now it doesn’t rewind again (with housing).

????

 

[69er]

Is there still one piece available – i would like to built one beolink 5000 (mine doesn´t show anything on the screen, but works).

Best regards

69er

[Author]

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