PS5 EDM 010 No Since of Life , No Beep ?

[kermit84]

Hi all, i hope any one can helps me i have spend now my 6th Day : (

I have no 3v3 and no 5V on the F7002 area where i must look for a short ?
I have remove the 2 capacitors and the regulator chip but i have short : (

Please any one can helps ?

greets

 

[jkyoho]

I guess you have 12v present. Does F7002 have continuity? Did you find short around f7002?
Look for any short around TPS2001D usb mosfets or any other fuses(F7501,F7001)

 

[kermit84]

Hi, thanks for answering, I'm so sad that it's just not possible

I measured the 12V around the coils and power supply alone, also measured 12.18V

F7002 has a short circuit, but the short circuit still remained when I unsoldered the chip and the 2 condensators: (

I have not the 3.3v on 7002 and not the 5V on the Coil : (

I have a short circuit on the 3.3v TJLS chip or as the black ic is called there and next to it is an SMT capacitor that also has a short circuit :/

Do I have a defective bios? Multimeter didn't show any short circuits there, everything was fine :/

Can I do the 1.5V Injection areas with an AA battery? Unfortunately I don't have a lab power supply

thx for helps i hope it gets working : (
here on the pics are short !

 

[jkyoho]

That cap I remember goes to rear USB mosfets vin, So you might need to check for short around the tps2001d on there.

 

[kermit84]

Hi i have check these side and upload a picture the network side is no shorts and the right side have

the capacitor on the outside and the ic legs 123 from up to down short

these is on the 2 sides of the area the same : (

I have no voltages nothing

no 3.3v , no 5v no where i have voltages only i have 12V : (

What i doo now ? : ((

 

[jkyoho]

REMOVE the big cap(goes to pin2,3 of the chip) and check if any of those 2 cap short when they are out of circuit, I see them go dead quit a lot.

 

[kermit84]

Hi , and exactly these 2 Caps are on the circuit on me on short i remove these tomorrow and write here again,

and these can really block the complete circuit to get 0voltage on 3.3v and 5V ??

Thx u Alot for helping : )

 

[jkyoho]

Yes, they are on the 5v standby line. So whenever the 12v goes into the MB, those 2caps get 5v. And if 5v standby been pulled down to ground, you wont get 3.3v standby therefore nothing works)no beeps, no light, silent dead).
FYI, 5v standby goes everywhere on the MB, those caps are just one of the common failure area. Troubleshooting where short comes from without Thermal camera is pain in ass.

 

[kermit84]

Okay, I'll take off the 2 caps tomorrow, I really hope that it's finally the 2 one of them, because it won't get exactly hot or anything :/

I unsoldered everything else on the fuse and around 7002 and checked the short was there anyway

The Values from the Cap when its defective u know the art and value pf or nf or uf ? : (

Are there any other areas? and the blue 6.3v capacitor can't be defective, can it?

 

[jkyoho]

Okay, I'll take off the 2 caps tomorrow, I really hope that it's finally the 2 one of them, because it won't get exactly hot or anything :/

I unsoldered everything else on the fuse and around 7002 and checked the short was there anyway

The Values from the Cap when its defective u know the art and value pf or nf or uf ? : (

Are there any other areas? and the blue 6.3v capacitor can't be defective, can it?

ALUM CAP goes bad normally shows like popcorn/crack. It's possible but rarely happened compared to the MLCC caps

 

[kermit84]

I Thx u alot i have a little question where are the all standby power rails to check ? there can shorts too ?? but where i can look for on the board ?

 

[jkyoho]

FOR EDM-010:
5v standby rail gens from F7001, 1R0 inductor area.
3.3v standby I believe from f7002 area, TLV62090 "SBV"CHIP

 

[kermit84]

Jehhhhsuuuuussss u are my life saver i kiss uuuuu i have it : )))

It was the firstly cap very left no more Shorts, i hope its working but i must buy a svb chip i missing these component only : ))

I have a small question about the SVB chip that regulates 5v to 3.3v, if one of these regulators isn't on eg compared to the F7002 you don't get 3.3v? because I am missing an SVG chip on the F7002 area, so the 3.3v on the coil is also missing there

Do u know the art and the uf or nf or pf from the firtsly cap ??

And i Have not the Power Onn Board any More can i short pin 1 and 2 for turning on ? Picture 2 i have shoot a pic : (

 

[kermit84]

No one Knows the Values ? from the Cap ? : (

 

[jkyoho]

22uF_6.3v_0603 is the cap on your pic#1
you should short pin1 to ground to turn on, and pin2 should be for eject button not the ground

 

[kermit84]

Thank you a thousand times : ))))

Does it have to be 1:1 22uf or can it be more? because I can't find a 22 UF in our shop around the corner

 

[jkyoho]

no big deal more or less value, but careful choose voltage rate

 

[kermit84]

I was the only one who could find the alternative here

22uf 6.3v X5R 20%
in size than 0805

Could I take that without hesitation and solder without anything interfering with the electronics or should I definitely buy the 0603 size? The voltage has remained at the 0805 6.3V

 

[jkyoho]

Oh, that was just up size bigger cap,specs match. You may just need to grind and expose the pad,which goes to the chip pin2/pin3, a bit in order to make it fit.

 

[kermit84]

Solder at an angle and jumper wire and uv paint on it wouldn't possibly work? or best I order, then I'd rather wait before something bad happens : )))