V12 no disc spin

**Predz** · 09-17-2006,09:38 PM

Hi guy's
got a UK v12 here
powers on OK (switch from red to green)browser fires up ok
control seems fine
but disk will not spin and no laser activity
there is no chip fitted and i can seee no sign's off 1 ever being fitted?
could this still be laser coils fried?
thx in advance

check'd all fuses,they all check out ok

T07N · 09-18-2006,02:28 PM

Try replacing the laser. The worst thing that could happen is the laser controller chip burnt.

**Predz** · 09-18-2006,05:52 PM

tried that T07N still the same

is there anyway to test the controller chip? apart from the way suggested?
and is it possible for it to be replaced

T07N · 09-18-2006,05:56 PM

I do not know how you can test the laser controller chip but I know you need skills to replace it. It's pretty difficult because there are a lot of pins you must solder the board.

**EspeN** · 09-20-2006,06:05 AM

Replace the 303 tracking resistors with 100k/130k

T07N · 09-20-2006,05:59 PM

Espen, never heard of doing that before. How would that help? Wouldn't that decrease the laser's ability to read?

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