beogram 5500 turntable repair, gear disassembly?

32 replies
UM
Offline
ummagumma
Bronze
Posted November 22, 2022 at 16:51 GMT
#1650925
So far I've replaced the 2x 10,000uF caps in the 5500 amplifier, and most of the big caps in the 5500 CD player. The 4700uF I ordered was too tall for the CD player PCB to close down again ( doh!! ) so will have to order a shorter one.

 

The 5500 TT parts are here, will take a stab at it later today.

 

At least I have music now :) the CD player is running, I'm curious if it'll get warm like before. I need to order a belt for the 5500 tape deck, too. Motor spins but I assume the drawer belt has stretched/dried out, as it won't grip.

 

Thanks again, for all the help!
UM
Offline
ummagumma
Bronze
Posted November 23, 2022 at 13:34 GMT
Edited November 23, 2022 at 13:35 GMT
#1650950
 

I tested the regulator compared to a new one, and thought it was bad. I'd like to kick the sadistic engineer who designed the regulator mounting system in the groin!! What a stupid setup. Why didn't they just screw it down?

 

Anyway after new regulator, new 1000uF cap C3 & new 1uF cap C4, I am still not getting any voltage out of the power supply.

 

So I'm thinking it must be PS diodes, or there are 2 other caps in there, on the schematic. Hopefully the power transformer is good. I'd think the fuse would have protected that though?

 

Ps do I need to have the TT hooked up to the rest of the system to troubleshoot this? I assume just plugging the power cord in should give me something to work with?

 

Thanks for any advice!
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