PS2 V9 Are my LA and Lens blown? check the values of the multimeter... thnx

Hi to all the guys on this forum, i received one ps2 to fix, it was a 50001 one, v9 khs 400c lens, no la fix done, and it doesnt load any cd/dvd, it ejects fine, and boots to the navigator fine

It only sent a little red light with the lens, and then no anymore, it doesnt read anything

i tested the Lens with the multimeter (200) it gave me these values

FOCUS ----------5.6
TRACKING--------2.6 *** on ps2info.net says that it needs to be on 4 or 5

so then i proceed to check the LA

PIN 21---------641
PIN 20---------1*** No change so i think the la is blown
PIN 19---------641
PIN 18---------643
PIN 17---------528 *

on ps2info.net said that it needs to be all pins from 17-21 between 600 or 700 at continuity mode on the multimeter


other ps2 v9 (la no blown) it gave me these values

PIN 18-21 637 and 17 with fix done about 2xx or something

So what do u think? are my LA or Lens blown?

Thanx a lot for ur help

Verawarez

Your LA is part blown and lens needs replacing at the very least. I'll repost a PM I just sent earlier:

Basically the only way I know if the LA is bad is from the laser lens coils. If one or both are under 4 ohms the LA chip is toasted. They run to pins 18-19 and 20-21, just above the romeo pin. If the laser is plugged into the board you can test the ohms between these pins.

Sometimes you can just use a PCB fix like d-I-v-e-n-e-o sells for $9 and you don?t remove the LA, just lift a few pins, other LA?s are so bad that you need to replace the whole chip. Typically if only one of the coils are bad the LA Fix board should work, if both coils bad the chip may need to be pulled. If you do get the fix board you can still do the Romeo mod on the LA AND fix board, The red PCB power is pin 7, run it to the same 5V line as the Romeo mod shows.

I read about some people using a Dremel rotary cutting tool to cut the legs off of this chip but I have removed one with a soldering iron and a needle to lift one pin at a time and I used flux to help remove the center ground plates.

Of course, after you fix the LA chip you must replace the laser or at least the laser lens with good coils before testing the PS2.

was the romeo done? the lens is definately gone and needs to be replaced. if you haven't done the romeo i'd replace the LA as well and then do the romeo.

Quote:

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Originally Posted by relaxxx

Of course, after you fix the LA chip you must replace the laser or at least the laser lens with good coils before testing the PS2.

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is there Any tuto for replacing the coils of the lens? i dont know if thats what i tried to ment, cuz i heard if tracking or focus is bad, u could fix it replacing a part of another good lens, but i dont know how is called this piece in english at spanish is "bobinas"

Thanx a lot for all ur help

SEE U thanx for all ur help

I've also read you can just replace the coils, but I've never tried it. Its easier to just get another lens.

With HD7 and 400R I?ve not had much luck but replacing the coils on a 400c is quite easy and only takes 10-15 minutes.

Even 400B lens and coils can be used. The fist time I unscrewed the metal plate holding the lens coils and magnets from a 400B and glued it on a 400C (the screw holes do not match) Then I realized you don?t even need to replace the magnet plate. Which is good because it?s nearly impossible to remove 2 of the screws on the 400C without damaging the thin coil wire running to the mounting block. You just desolder the 4 coil points ribbon on the side, then there?s just one screw on top near the ribbon holding the lens coils in place. Remove the screw and lift from that mounting block and the coil and lens will lift right out of the magnet plate. Replace with good coil lens and solder the ribbon back on.

It?s not hard to get hold of some bad 400B lasers with good lenses for next to nothing. Sure beats paying $70 for a replacement 400C!