JorgePayar
Member
f7000? Do you mean u7000?
Last edited:
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820-2530 wont turn on
- Thread starter Kyle
- Start date
I'm still not aware of the real resistance of PP3V42_G3H to ground or its voltage. It can't be 2 ohms to ground and 2.6v.
If it is 2 ohms, then inject 3.42v on PP3V42_G3H and find what gets hot. There is a short. But I still find it hard to believe it is 2 ohms if you measured 2.6v before, something isn't right in these measurements.
Remove L6995, place 3.42v from bench power supply where pin 2 of L6995 would go, and ground of bench power supply on ground. Is it delivering excessive current? If NOT, try actually plugging the magsafe in after you inject 3.42v and see if it'll give a green light or turn on.
Remove L6995, place 3.42v from bench power supply where pin 2 of L6995 would go, and ground of bench power supply on ground. Is it delivering excessive current? If NOT, try actually plugging the magsafe in after you inject 3.42v and see if it'll give a green light or turn on.
Put two PC power supply in serie, isolate ground from first PSU, there you will have 24V, 17V, 15V, 12V, 8V, 5V and 3.3V with a lot of amps, if you want variable voltage, use linear regulator LM317, put 5 in parallel to increase amperage on regulated line to about 7.5AMP and a voltage from 1.5V min- 24V max... This was my first power supply 