Re: Sony vaio VPC-EB mbx223/ no start,no power no led
I found the problem. The PU3 (BQ24753ARHDR) (NS982402) is not functioning at all because i'm not getting a reading. I checked pin 5 (ACDET) and Pin4 (ACDRV) nothing. I have 19.4v from PF1 and PL1. I assuming the PU3 is dead should I replace it?...
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Re: Sony vaio VPC-EB mbx223/ no start,no power no led
can you describe pin 4 in more detail. Are you talking about the first ground wire (according to the pic) from the power jack. I interested in this repair because I have a MBX223 motherboard no longer showing any signs of life after three months of usage. I change the power jack and the power board, but still nothing. I've attempted to try your grounding method, but i was unsuccessful at it as i'm not sure if i'm grounding the correct pin. What is pin 4?...
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