Re: Sony VPCSB (MBX-237) dead after bios flash
Hi Francisco, sorry about the late reply, resistance betw. pin7 and ground is 2.3 ohm. thanks again.
derattes
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Last Activity: 04-05-2025, 03:28 PM
Joined: 09-27-2013
Location: london
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Re: Sony VPCSB (MBX-237) dead after bios flash
I replaced pc205 but still same thing ...pin6=19v, pin7=0v .
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Re: Sony VPCSB (MBX-237) dead after bios flash
I agree. There should be 5v on pin 7, however for some reason it gives 0v on pin 7 . Perhaps the ISL6236 is not 100% equivalent?
The power board connected to motherboard has 0.56v in all pins of the small connector and 0.56v in the first pin of the large connector(I bought this powerboard from ebay) , I wonder if this is the correct reading? Shouldn't it have 5v in each connector?
Thank you very much for your help Francisco.S !Leave a comment:
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Re: Sony VPCSB (MBX-237) dead after bios flash
I've just replaced SN608098 with a ISL6236 but still have 19v on pin 6 and 0v on pin 7 . I really dont know where to go from here...
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Re: Sony VPCSB (MBX-237) dead after bios flash
Do you think I can replace SN608090 with a SL6236 ?Leave a comment:
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Re: Sony VPCSB (MBX-237) dead after bios flash
Hi, Francisco.s , after replacing pr324(which was open) I now have 19v on pin6 of SN0608098 and still 0v on pin7 of SN0608098. Also, SN0608098 is not getting hot... Any suggestions?
thank you very much for your help!Leave a comment:
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Re: Sony VPCSB (MBX-237) dead after bios flash
Is there any way I can test the powerboard cnx458? Also, I have 2v on pin6 of SN0608098 and 0v on pin7 of SN0608098. Any ideas?Leave a comment:
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Re: Sony Vaio VPC-SB26FG cannot power on
Hi Guys, unfort. it wasnt just the mosfet, I get some readings now from the new mosfet but still not powering on . I'm not sure if the power board is fully working.I have 0.5v from the powerboard 6 pins connector(connected to motherboard) Does anyone has the schematics for the powerboard cnx458 ?Leave a comment:
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Re: Sony Vaio VPC-SB26FG cannot power on
Hi guys! Have 2 motherboards with same problem... I found that r460 mosfet near SN0608098RHBR is dead. I have just ordered one from ebay, ref. SIR460DP-T1-GE3 . I will post results soon. By the way, anyone has schematics for the power board(cnx458) or have any experience with that? one of mine is dead too.Leave a comment:
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Re: Sony VPCSB (MBX-237) dead after bios flash
Hey OrientalSniper. Have you got any news ? Did you find the faulty component? I have exactly the same problem here.. Been working on it for 3 days now, Do you have any reading on the r460 next to SN0608098 ? I have zero.Leave a comment:
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