Problem with v7 - Bad ba?

**Thinkdiff** · 03-25-2005,06:44 PM

hey.. I have a V7 here that i thought had a bad laser. replaced the laser and now only CDs will boot. I noticed that pin 7 on the BA near the laser is only 55ohms away from GND. Could it be blown and still read CDs? I tried w/ and w/o the Matrix chip in it. And tried adjusting the laser and the POTs (DVD is currently at 1000, factory was at 1560).

**Thinkdiff** · 03-26-2005,11:22 PM

bump.. nobody knows how to check if the BA is bad?

**davbere** · 03-26-2005,11:27 PM

More than likely The BA is fine.
If pin 8 is open to ground the BA is bad.
Try swapping the laser.

**davbere** · 03-26-2005,11:29 PM

Sorry I just noticed you said you replaced the laser.
Is it a new laser ?
What model is the laser ?

**Thinkdiff** · 03-27-2005,12:39 AM

Yes, brand new laser (from richspsxpars.com). It's a 400C. Original laser was also a 400C

**davbere** · 03-27-2005,12:54 AM

You should not have had to adjust the pots.
The only adjustment you need to make with his lasers is the angle of the laser and the heigth. I suggest you put the laser back to its original values and try the angle and heigth adjustments.

**Thinkdiff** · 03-27-2005,12:57 AM

I have tried to adjust the angle (the black screw) quite a bit and didn't make any difference. I didn't try moving the white cog though.

**davbere** · 03-27-2005,01:04 AM

You should set the laser back to its original values and try adjusting the heigth and angle.
How long have you had the laser set to 1000?

SlantedEyEz · 03-28-2005,09:30 PM

ive got a ps2 v7 laser ? anyone interested?
i got it at target, i bought da system took out the laser n returned it. it was about a year ago, i got a pstwo now.
anyone interested?>

**bobcat** · 03-29-2005,01:46 AM

hi there just pm you about the laser.

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