David Fernando Bellsolá
New member
Hello my dear friend of the repair world. I have a highly sodomised motherboard. An 820-2879-B. I don't know what happend to it. It came in a bag by mail. And worst of all others repair shop "see it" before me.
The problem strong green light in original, not orange when battery conected. Turn on chime or half chime and them shuts down. Fan spins.
First i ultrasonic clean it. I make a few messurements with an oscilloscope and i can see a very tiny ripple. Al messurementes are in range.
Amd a footnote rossman speak's like Jerry Seinfeld =).
I hope i can get some help if it cannot be fix there's no problem i have many mone in this bag.
=)
The problem strong green light in original, not orange when battery conected. Turn on chime or half chime and them shuts down. Fan spins.
First i ultrasonic clean it. I make a few messurements with an oscilloscope and i can see a very tiny ripple. Al messurementes are in range.
| 820-2879 | Valor | Valor medido |
| PPVCORE_S0_CPU | 1,25 | 1,25 |
| PP1V05_S0 | 1,05 | 1,05 |
| PPVCORE_S0_MCP | 1,05 | 1,05 |
| PPDDRVTT_S0 | 0,75 | 0,75 |
| PPDDRVREF_S3 | 0,75 | 0,75 |
| PP1V5_S0 | 1,5 | 1,5 |
| PP1V8_S0 | 1,8 | 1,8 |
| PP5V_S0 | 5 | 5 |
| PP3V3_S0 | 3,3 | 3,4 |
| PP1V5R1V35_S3 | 1,5 | 1,5 |
| PP3V3_S3 | 3,3 | 3,3 |
| PP5V_S3 | 5 | 5 |
| PP3V3_S5 | 3,3 | 3,3 |
| PP0V9_S5 | 0,9 | 0,9 |
| PP3V42_G3H | 3,42 | 3,3 |
| PPDCIN_S5_S5 | 18,5 | 18,5 |
| PPBUS_G3H | 12,6 | 12,6 |
| PPBUS_S5_IMVP_VTT_ISNS | 12,6 | 12,6 |
| PP3V3_S5 | 3,3 | 3,3 |
| PP0V9_S5 | 0,9 | 0,9 |
I hope i can get some help if it cannot be fix there's no problem i have many mone in this bag.
=)
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