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| Sony vaio VPC-EB mbx223/ no start,no power no led https://vlab.su/viewtopic.php?f=55&t=6017 |
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| sebuncle [ 27 фев 2012, 17:42 ] | |
| Заголовок сообщения: | Sony vaio VPC-EB mbx223/ no start,no power no led |
hi , motherboard M960 rev1.1 mbx223 doesn't start , no led , no power , no charge. I check on power button 3v are no present 19v is present on PF1 and PL1. 19v is present on PQ2 but only on pin 1 to 4 , on pins 4 to 8 there's 0v (i change PQ2 it's the same)  i check SN608098: no voltage (i don't have datasheet) i check BQ24753A: PVCC have 19v Can you tell me where i have to check i don't have schématic thank you |
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| MSF113 [ 27 фев 2012, 18:40 ] | |
| Заголовок сообщения: | Re: Sony vaio VPC-EB mbx223/ no start,no power no led |
Check CMOS battery voltage first. |
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| sebuncle [ 27 фев 2012, 19:07 ] | |
| Заголовок сообщения: | Re: Sony vaio VPC-EB mbx223/ no start,no power no led |
hi, battery CMOS have 2.54v connector battery on motherboard have 0v |
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| MSF113 [ 28 фев 2012, 08:18 ] | |
| Заголовок сообщения: | Re: Sony vaio VPC-EB mbx223/ no start,no power no led |
The voltage on the CMOS battery connector should be about 3V |
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| sebuncle [ 14 мар 2012, 17:30 ] | |
| Заголовок сообщения: | Re: Sony vaio VPC-EB mbx223/ no start,no power no led |
hi , which component gives 3v on this connector? best regards |
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| phoma [ 15 мар 2012, 01:31 ] | |
| Заголовок сообщения: | Re: Sony vaio VPC-EB mbx223/ no start,no power no led |
sebuncle писал(а): hi , which component gives 3v on this connector? best regards CMOS battery |
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| sebuncle [ 17 мар 2012, 01:00 ] | |
| Заголовок сообщения: | Re: Sony vaio VPC-EB mbx223/ no start,no power no led |
phoma писал(а): sebuncle писал(а): hi , which component gives 3v on this connector? best regards CMOS battery ok when cmos battery is connect i have 2.54v 
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