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Old 02-05-2014, 12:37 AM   #1
aanan
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Default Quanta QL8 / TW8 schematics request

FOXCONN ML94V-0
Totaly dead no led .
i need schematic.
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Old 02-05-2014, 01:25 AM   #2
tomodachi
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Default Re: Foxconn ml94v-0

Thats a Quanta QL8 / TW8 motherboard.
And this is the discrete GPU version of yours, might help.
And if you can share the symptoms I can help u. I repaired lots of that motherboard when I was working on a RMA center.
Most problem is shorted mosfet,tantalum caps and cold solder at Vcore chip.
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Old 02-05-2014, 02:47 AM   #3
aanan
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Default Re: Foxconn ml94v-0

Quote:
Originally Posted by tomodachi View Post
Thats a Quanta QL8 / TW8 motherboard.
And this is the discrete GPU version of yours, might help.
And if you can share the symptoms I can help u. I repaired lots of that motherboard when I was working on a RMA center.
Most problem is shorted mosfet,tantalum caps and cold solder at Vcore chip.
Thanks for reply tomodachi.
ALW 5v & 3v absent i chek pu8 ISL6237IRZ-T pin no 6 18v but pin no7 LDO 0 v & 0 ohm reading between pin no7 to gnd icheck pc121 it is ok please your opinion.

Last edited by aanan; 02-05-2014 at 03:05 AM..
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Old 02-05-2014, 03:27 AM   #4
tomodachi
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Default Re: Foxconn ml94v-0

Quote:
Originally Posted by aanan View Post
Thanks for reply tomodachi.
ALW 5v & 3v absent i chek pu8 ISL6237IRZ-T pin no 6 18v but pin no7 LDO 0 v & 0 ohm reading between pin no7 to gnd icheck pc121 it is ok please your opinion.
What do you mean LDO is 0 ohm ? is it totally shorted ? also check the +3VPCU rail to the ground.
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