Re: Nitro 5 AN517-52-78C3 LA-J891P FH52M
Sorry not UG9, I would say UC1 I have a problem with Nitro 5 AN517-52-78C3 LA-J891P FH52M.
Thermal camera detekted shurt on PQB12, After removing PQB12, the shurt stil stay, pin 5 on PQB5 shurted to the Groung. I connected 6V direktly from Power supply to pin5 and and I see UC1 with slowly heater.
what would you recommend to me, is the UC1 defective?
I Also remove PUB1, but it has nothing changed.
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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Nitro 5 AN517-52-78C3 LA-J891P FH52M
I have a problem with Nitro 5 AN517-52-78C3 LA-J891P FH52M.
Thermal camera detekted shurt on PQB12, After removing PQB12, the shurt stil stay, pin 5 on PQB5 shurted to the Groung. I connected 6V direktly from Power supply to pin5 and and I see UG9 with slowly heater.
what would you recommend to me, is the UG9 defective?
I Also remove PUB1, but it has nothing changed....
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Re: Lenovo Ideapad 5 15ARE05 NM-C811 No Power
PU1701
pin 1 12,29v
pin 2 0v
pin 3 0v
pin 4 0v
pin 5 0v
pin 6 0v
pin 7 0,22v not stabil
pin 8 0v
pin 9 5,09v
pin 10 3,64v
pin 12 0v
pin 13 3,41v
pu101
pin 1,4,7,10 is 20,23v
pin 5,8,11,13,14 is 0v
pin 6,9,12,15 is 0v
pin 2 0v
pin 3 0v
I don´t now how, but the pr114 is now 2,78v on pin2...
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Lenovo Ideapad 5 15ARE05 NM-C811 No Power
Lenovo Ideapad 5 15ARE05 NM-C811 No Power GSS55D&GS55E
At the beginning the device only had a problem with the display, it always flashed, but minimally, I connected different displays several times, and suddenly it no power more, maybe someone can help me. I attach Schematick and BV.
As soon as I connect the power supply nothing happens, everything is zero. but when I connect the USB-C power supply, the thermal imaging camera shows me that the RTS5457V-GR_QFN40_5X5 gets 30-35 degrees hot for 5 seconds, but I think its ok, according to ampermer 20V 0.94A,...Last edited by Vesko356; 10-17-2023, 04:28 PM. Reason: Attached schematic and boardview removed and replaced with link!
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Re: A1708 820-00840-01 20V 0.94A no Power
I found something, what I can't explain. When I connect my power supply to USB-C port 1, I get 20V on fuse F3000 and at the same time 12V on fuse 3010, and that's wrong, I tested that on a working board, also when I connect my power supply to USB-C port 2 so I get 20V on F3010 and 0V on F3000.
And thank you for the Korean website, it helps me a lot. I'll take a closer look. If you think of anything, please write to me
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Re: A1708 820-00840-01 20V 0.94A no Power
what can I do more?
there someone write me, that I have to check shurt on PPVCCPCH_S5G
Any Idea how to check this?
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Re: A1708 820-00840-01 20V 0.94A no Power
resistance between pins: 7 and 8 on U7650 1.604
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Re: A1708 820-00840-01 20V 0.94A no Power
L7030 1,34v
q7030 ppdcin_g3h_chgr 20v
q7040 ppvbat_g3h_chgr_reg 13v
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A1708 820-00840-01 20V 0.94A no Power
Measures :
PPBUS_G3H 13V
PPDCIN_G3H 20V
PP5V_S5 3 to 5V not stabil
PP3V3_S5 1 to 3V not stabil
PP3V3_G3H 3,40V
After I removed I removed Charger and Battery, and measured the resistance to ground.
PP5V_S5 1,500M
PP3V3_S5 0,040M ( not stabil, goin up slowly)
voltage to ground without connected Battery
P3V3S5_EN 3.3V
P5VXX_EN 0.00V
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Re: Microsoft Surface Pro 7 NEED BIOS. HELP!
maybe some components are missing, can someone compare that with their own motherboard....
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Re: Microsoft Surface Pro 7 NEED BIOS. HELP!
I have a bootloop with a BIOS chip, and even without a BIOS chip, can it be that something else is defective?
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Macbook Pro A1706 5V no power
can some one help with A1706 No power, the board looking goog, no liquid to see....
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