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VRDS 10 doesn't spin up
VRDS 10 doesn't spin up
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Old 23rd June 2020, 11:43 AM   #1
waltube is offline waltube  Italy
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Default VRDS 10 doesn't spin up

Hello,

I have seen some thread about VRDS10.
In my situation the tray is working fine. After power on the laser moves inside and the lens moves three-four time up and down as manual details.
With the cd inserted the mechanism push the cd up, the laser assembly goes inside but the motor doesn't run.
I checked ( with service manual) the test point but only the first step because the others must be verified with the motor running

Any idea?

There is a way to check the light of the laser?

Thanks

Walter
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Old 23rd June 2020, 09:38 PM   #2
ManoloMos is offline ManoloMos  Spain
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If the lens moves when you start up the cd, the most probably is laser don't read. Try clean lens, and the lens that is below the upper lens.
See lubrication too. If not read, the laser pickup is worn out.
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Old 23rd June 2020, 09:54 PM   #3
MAAC0 is offline MAAC0  Portugal
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You have to test for focus. If no focus signal motor doesn't spin.
Check if there is a focus test point than goes high or low when focus OK.
Clean the lens, check on a dark room from the side at 45 degrees or with some smoke or paper above if the laser actually turns on.
Do You see the red light? DON'T STARE AT THE LASER FROM ABOVE !!
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Old 24th June 2020, 09:18 AM   #4
waltube is offline waltube  Italy
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Thanks for help.

I will check accurately the laser.
I haven't seen the light but I need to be sure.
The problems are the spare parts

Walter
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Old 24th June 2020, 09:26 AM   #5
waltube is offline waltube  Italy
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On service manual all the test and verifications of signals are with the cd in play!
There isn' t a troubleshhoting.

Walter
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Old 28th June 2020, 08:00 AM   #6
waltube is offline waltube  Italy
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Hi

I have checked the laser beam but no light
Also I test the voltage on R407 and it reaches the value od 1.044 volt only when I press eject/load
The laser moves inside then up/down three times , at this moment I can read the voltage.
Divided by 22 ohm I got 47 mA that is fine with the value written on label of the laser, 465.
But the motor doesn't spin up

So I believe that the laser is broken

Walter
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Old 28th June 2020, 09:33 AM   #7
ManoloMos is offline ManoloMos  Spain
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Yes, all point to broken laser. Around 2V is the typical voltage at the diode laser, you should measure it. A check up of the laser power circuit is not a bad idea too.
The last chance is to move the potentiometer of the power laser and increase power.
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Old 28th June 2020, 04:05 PM   #8
waltube is offline waltube  Italy
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Thx Manolo
the pot of power is close to the laser or on main board?

Walter
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Old 28th June 2020, 04:12 PM   #9
ManoloMos is offline ManoloMos  Spain
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In the laser itself, a tiny brown potentiometer.
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