I have seen board views on *************
Not putting link as not sure what the rules are
Can anyone download for me
Thanks...
lcdcaps1
Badcaps Veteran
Last Activity: 09-19-2024, 12:42 PM
Joined: 10-20-2011
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Thanks. Do you have a board view please
Thanks again...Leave a comment:
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Hi
AllLeave a comment:
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Compaq La-1701 Rev 2.0 schematic board view
Hi
All
Does anyone have a board view for
LA-1701 REV 2.0 HP Compaq nx700, schematic and board view
Thanks so muchLast edited by lcdcaps1; 05-25-2024, 06:34 AM. -
Thanks for the reply
I can replqce with a 5v1 zener diode smd which is 0.5 w
or 5v1 zener diode 1w which is through hole
I'm thinking if I replace with the 1w zenner diode it will add a bit more protection
any thoughts please
Thanks...Leave a comment:
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Would it be better to replace it with a 5v1 diode or a 5v6 diode, please
i think the glass might be cracked...Leave a comment:
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I am thinking that should i replace with a new better zenner diode as I am replacing the chipLeave a comment:
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In the process of doing it...Leave a comment:
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You were right
I got 1.6 ohms across the motor terminals and
i got 1.7 ohms across the diode both ways
i got 0.002 v drop both ways...Leave a comment:
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Is there any way to know if the Zenner diode is ok without removing it...Leave a comment:
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Can I use
1N4734A
5v6 1w
instead of smdLeave a comment:
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Thanks for the reply
I will do that
does that mean the Zener diode would still be ok
After speaking to the person who gave this to me, to look at
They said they plugged in another cable that had the same connector but the power adapter was different
was not usb
I believe that this is why the TP4056 blew
I I replace the TP4056 and deal with the burn damage
will it work again or should I replace the zener diode as well with a higher one
Thanks...Leave a comment:
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Yes I tested the diode it was a showing low ohms reading both ways...Leave a comment:
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Thanks for the reply
When you say a 1w diode
is that still a 5v1...Leave a comment:
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Usb rechargeable hair clippers blown tp4056 and zener diode
Hi
all
I have a usb rechargeable hair trimmers that should work plugged in and charge
it stopped working no led norhing
I've opened it up and see the tp4056 chip has blown
There is a zener diode that I tested and get a near short ohms reading no matter which way my leads are
I don't know what to replace this with
Please help
thanks so much... -
Re: 820-2610-A Sys onewire help, no green light. Please help from the gurus
Thanks for the reply piernov
Really appreciate it very much
Do I replace U6915 as well as the transistors
The reason I am asking this is because I read that one blows the other and this keeps on happening
Thanks again...Leave a comment:
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Re: 820-2610-A Sys onewire help, no green light. Please help from the gurus
HiLeave a comment:
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Re: 820-2610-A Sys onewire help, no green light. Please help from the gurus
Here are some more measurements
PPBUS_G3H 08.39v
PPBUS_CPU_IMVP_ISNS 08.39v
PPDCIN_G3H 16.63v
PP3V42_G3H 03.40v
PP5V_S3 0v
PP5V_S0 0v
F7040 08.38V
F6905 16.63V
D6900, PIN 1 0V
U6915 PIN 1 08.29V
U6915 PIN 2 GND
U6915 PIN 3 0V
U6915 PIN 4 08.15V
U6915 PIN 5 16.62V
Q6920, PIN 1 source 0V
Q6920, PIN 2 gate 0v
Q6920, PIN 3 drain 0v
Q6920, PIN 4 source 0v
Q6920, PIN 5 gate 0v
Q6920, PIN 6...Leave a comment:
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Re: 820-2610-A Sys onewire help, no green light. Please help from the gurus
Hi
Below are the voltages i have got so far
My CHGR_ACOK voltage seems low
If someone can verify this. I will appreciate it very much
Thanks
PPBUS_G3H 08.39v
PPBUS_CPU_IMVP_ISNS 08.39v
PPDCIN_G3H 16.63v
PP3V42_G3H 03.40v
PP5V_S3 0v
PP5V_S0 0v
F7040 08.38V
F6905 16.63V
D6900, PIN 1 0V
U6915 PIN 1 08.29V
U6915 PIN 2 GND
U6915 PIN 3 0V
U6915 PIN 4 08.15V
U6915 PIN 5 16.62V
Q6920, PIN 1 source...Leave a comment:
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Re: 820-2610-A Sys onewire help, no green light. Please help from the gurus
I will be getting these measurements shortly...Leave a comment:
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