dclass-pro
Senior Member
Last Activity: Today, 10:14 AM
Joined: 12-14-2022
Location: Lecce
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thanks!!! can you send me the whole brd view and the schematic if available? -
ASUS UX363JA No power
Hi guys, I'm repairing a motherboard from an ASUS UX363JA R2.2 that won't turn on, I found a component exploded near the display connector.
I don't have the diagram so I can't figure out what code it has, also if I power the main with the USB-C I have a draw of about 2A at 5V and it doesn't go to 20V.
I checked the mosfets and inductors and everything seems ok, but I don't know what to do.
Do you have any ideas? -
I installed this bios and it finally started working 100% again THANK YOU!!!Leave a comment:
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I installed this bios and it finally started working 100% again THANK YOU!!!Leave a comment:
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I tried writing again and now it works again, but always the same absorption, that is, after 40sec 300mA, can you send me your bios and I'll try?Leave a comment:
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I tried to rewrite the bios but when I turn on the mac I only have a current draw of 187 mA, I saved the original, which I attach here in the post, but now even if I put the original back it draws 187mA and it doesn't start up like before...Leave a comment:
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On F7000 I have 13V stable
on ALL_SYS_PWRGD I have 3.2V
Between all the inductors and ground I do not have a low impedance except on those of the processor L7410 4.7ohm
L8410 6 KOHM
L8060 183 OHM
L7900 112 OHM
L8030 600 OHM
L7960 74 OHM
L7370 14 OHM
L7220 9.6 OHM
L7210 9.6 OHM
L7670 53 KOHMLeave a comment:
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A1708 all voltage ok but no power
Hi guys, I have a macbook A1708 with mainboard 820-00840-A in which I have all the voltages, 3V 5V 1V etc... and when I connect it to the power supply it goes from 5V to 20V but starts with a 600mA absorption and then goes down and stops at 300mA... what can I check?
On the L7030 I have 13V everything seems correct but the macbook does not start.
Can you help me? -
I noticed that DC1 was heating up a lot and so I checked on pin 1 of DC1 and between pin 1 and ground I have a short so 0ohm.
I tried to inject 3v on pin 1 of DC1 and I noticed that it heats up the processor, so it is the one that is shortedLeave a comment:
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Hi guys, sorry for my absence... I discovered the problem.
The +3V_LID line was shorted and unfortunately it comes from the processor.
I'm sorry but it's not repairable, thanks to all guys, see you next time...Leave a comment:
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checking on the diagram I have on the 2 ICs of the 5v and the 3v only the ENLDO_3V5V of about 4.3V but I am missing the 3VL which perhaps must be generated by the charger, but it is not generated by pin 5 ACOK.Leave a comment:
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la-h329p
schematic [B][FONT=Arial][B][COLOR=#111111]la-h329p[/COLOR][/B][/FONT][/B]
schematic [B][FONT=Arial][B][COLOR=#111111]la-h329p[/COLOR][/B][/FONT][/B]
schematic [B][FONT=Arial][B][COLOR=#111111]la-h329p[/COLOR][/B][/FONT][/B]
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I didn't understand in which section I have to put the diagram, can I have the link?
for the charger it mounts the BQ24735R, between the SDA/SCL lines and ground I have about 600K so it seems ok...
here are the values measured with the charger connected:
REGN - 5.9V
VCC - 19V
ACDRV - 25.6V
ACN - 19.3
ACP - 19.3
CMSRC - 19.3VLeave a comment:
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HP la-h329p no power
Hi guys, I have this notebook that does not turn on. HP la-h329p
When I connect the power supply the white light does not turn on but it does not generate the 3v and 5v.
I find the voltage in the P2 pin so the first 3 mosfets are working, I also changed the charger and the problem persists.
On the battery connector I have about 2.8V on +BATT but on SDA and SCL I have 0V.
I checked and the 3v and 5v coils are not shorted to ground.
What can I try? -
thanks guys I laughed, in fact Q9706 was damaged. I changed it and the backlight came back!!! Thanks a lot, but now I noticed that when I close the display the backlight does not turn off. the display always stays on even when closed.
What could it be?Leave a comment:
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so do you recommend me to change Q9706?Leave a comment:
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[B]ALL_SYS_PWRGD[/B] = 3.3V[B]ALL_SYS_PWRGD[/B] = 3.3VLeave a comment:
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R0910 0v-0v
r9715 BKL_EN 0.4v
I2C_BKL_1_SCL ; 3.3v
I2C_BKL_1_SDA ; 3.3v
LCD_BKLT_PWM ; 0.4vLeave a comment:
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I made a mistake in checking, the image is there and the backlight is missing, in fact I see the user at login if I put the flash on the screen... what can I check?Leave a comment:
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