Hi, I need help, i dont know what part is the one marked in red arrow in the pic.
Its an P168c chinese phone mother board photo from a working one, mine dont have that part, it seems cracked I think is a BT1 or something like that.
The other problem is when I turn on the phone, all works fine, and the lcd displays the info for a few seconds and then the lcd turns off, but the phone is still working. then a few more seconds the screens turn on again for a couple of secs an then off again. when the lcd is on and i press a button it goes off. i dont know if that BT1...
pcjiet
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Last Activity: 04-11-2011, 11:08 AM
Joined: 12-20-2010
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Re: HP w2007 white screen problem
sorry, the caps are 1000uF 16v not 100uF... -
Re: HP w2007 white screen problem
I replaced those 3 caps, they are 100uF 16v each, but the multimeter read the same voltage 6.3 v. What could it be? or may be this is the correct voltage?...Leave a comment:
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Re: HP w2007 white screen problem
the values are:
1) L2: the multimeter in range of 20k ohms marks 5.23, 5.22, 5.21, 5.20, 5.21...
in range of 200 ohms marks 1820, 1821, 1822, 1823, 1824...
2) D10 catode: multimeter in range of 200 ohms marks 21, in range of 20k marks 0.00
3) D10 check: my multimeter dont have a beep, so i will put here the marks: in "diode test" range marks 267 inverting the proves marks 1036. With ohms set in range 20k marks 5.45 and inverting the probes marks 1 in the left of hand
4) u1 check: in range of 20k ohms...Leave a comment:
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Re: HP w2007 white screen problem
this is the pic of the fuse (F5) there are no marks on it, its just blue, in the pic you can see the little cable burned or opened inside the fuse....Leave a comment:
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Re: HP w2007 white screen problem
i will replace the caps, but how can i get another of those tiny fuses, whats the value or the amperage?Leave a comment:
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Re: HP w2007 white screen problem
1 on the left hand sideLeave a comment:
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Re: HP w2007 white screen problem
- the F5 dont mark a thing, the 2 multimeters dond mark nothing.
- the left diode from the photo marks 26.9v to 27.2v and the right diode near the output cables marks 6.2vLeave a comment:
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Re: HP w2007 white screen problem
hi thanks for answering ^^, i done the multimeter check in post #2 and it marks 0.5 ohms, then the multimeter is ok right? I think the F5 is open, mabe because those 6v, what should i do next? btw i have a digital and an analogic multimeters.Leave a comment:
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Re: HP w2007 white screen problem
here are the logic card and the pcb... in the board atached to de LCD screen, i check in diode mode the F5, i think is a fuse and there is infinite resistence, mabe is the bad one. But what about the 6v in the marked 5.1v spots?...Leave a comment:
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Re: HP w2007 white screen problem
This are the pics, do you think its the power board? or mabe the logic board?...Leave a comment:
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HP w2007 white screen problem
Hello, nice o meet you all...
I have a HP W2007 LCD 20" monitor. Some day i was playing a game and my screen turn all in full white screen.
I was searching for a solution but no luck.
I opened the monitor and check capacitors and seems to be all ok.
I check the voltage in the power board (E131175) in P802 cable, the board says 5.1 V in 4 points but my multimeter says there is 5.9v in each of the 4 points. the Is this ok?
please help me!
sorry for my english :P
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