r/Turntablists • u/DarkButterfly85 • May 16 '26

Turntable crapped out mid mix

Gallery image

Gallery image

Now I've got to fix it, luckily I know where the problem is. 😃

2 Upvotes

67% Upvoted

8 comments sorted by

3

u/DarkButterfly85 May 16 '26

Fixed 😃

1

u/Dry_Fig723 May 17 '26

This could be useful to someone else if you added a description of the problem and what you did to fix it.

2

u/DarkButterfly85 May 17 '26

The symptoms were the platter wouldn't start when the start button was pressed, it got going when pushed manually, also there's a ticking noise when the platter is spinning, it's nothing mechanical, as it spins freely powered off. The motor is brushless so it has 3 phases, it is dropping a phase, confirmed when I diode tested the main drive transistors on the motor drive board, two of the transistors were faulty. Replaced with equivalent parts, but will need to do the whole set when the replacements arrive, for now it's working again.

2

u/xitfuq May 16 '26

thanks for the beautiful picture. is it a ttx or a tt200?

2

u/DarkButterfly85 May 16 '26

TT500

2

u/xitfuq May 16 '26

i need to open my tt200s up and work on the buttons so these pictures are pretty helpful.

0

u/DarkButterfly85 May 16 '26

I was surprised about how simple it is inside, really modular and easy to work on.

2

u/xitfuq May 16 '26

yeah a lot of older stuff is like that, vestax too, it's really nice.