v3 eject not reacting after Duo2SE

**Lobster** · 01-31-2005,01:12 PM

After I installed this chip the drive opens and closes randomly, now it doesnt open at all, after removing the chip. What could be the problem, does anyone know?

**TRABEL** · 01-31-2005,05:43 PM

check point Z , you must have shorted the resistor or ****ed it up.
check for any other shorts on bios and on pint B and I.

had same problem after dou install . point z was ****ed , i have changed the resistor and all working 100%

**Lobster** · 02-01-2005,09:43 AM

hey there was a solder bridge but i fixed it, checked w multimeter and cleared it up, but problem remains. which resistor are you talking about? its probably ****ed all right. how do i change it?

**loy** · 02-01-2005,10:09 AM

check the resistor banks with a multimeter check if they have the correct values

**Lobster** · 02-01-2005,01:23 PM

!!!! but i dont know the resistor values to begin with!! is it possible to wreck the controller chip? do you have values for the pins (in ohms between adjacent pins)?

**TRABEL** · 02-02-2005,09:48 AM

well its a resistor bank , 4 resistors in a raw .
so all should be the same value.
so just check all 4 of them , also check from 1 point to the controller chip.
anyhow , on my ps2 the resistor look fine , but only when i changed it was all fixed.

threeclaws · 02-05-2005,10:37 PM

I'm having the same problem but on a V4, after I installed it the PS2 woudn't play backups, so I figured something was screwed up at A, B, I, since those were the points I had a problem with.

After I tried to fix those points the eject doesn't work, for me at least it can't be Z since there isn't a resistor there, I've desoldered A, B, I, and still the eject doesn't work.

I think I might have to go ahead and let a pro take a look

**N£TM£ÇH** · 02-05-2005,10:41 PM

You guys have shorts on the pins.. check with multimeter, use desoldering wick, flux and use a razor blade and slide the blade in between each set of pins.. Also its not a bad idea to clean the area with a solvent and a toothbrush.

threeclaws · 02-05-2005,11:11 PM

I spent the last 3hrs working on it, shoulders are a bit sore

So I'll take a look tomorrow, thanks for the advice, I guess I didn't clean up as well as I thought.

**G@vin** · 02-06-2005,05:03 AM

hi alll
l had the same problem on a V3 with duo2se (no eject even with no chip installed) the only way l could of fix mine was to replace the Z point resistor ...l got one from a old v4 board....l hope this helps..
Gavin

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