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Search: Posts Made By: mon2
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Today, 10:27 AM
Replies: 8
Views: 68
Posted By mon2
Re: help me, Dell 7567 compal la-d993p 1.6v on power button

So it sounds like it is coming down to the EC controller @ UE1.

Wait on others to comment but it does not seem correct to have this lower voltage on an INPUT pin to the EC.

Also, the VIO for...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Today, 09:36 AM
Replies: 8
Views: 68
Posted By mon2
Re: help me, Dell 7567 compal la-d993p 1.6v on power button

Diode reading is healthy.

See attached.

The same switch lead goes to this APS CONN. Can you remove the cable or connection to remove the load on the RE31 resistor ?

Then check if the voltage...
Forum: BIOS Requests ONLY! Today, 08:49 AM
Replies: 2
Views: 23
Posted By mon2
Re: Asus x512d

1v8 for a flash bios chip is normal these days. It is very possible that your flash device is truly designed to operate @ 1v8.

What are the full markings on the flash device ? With this detail ->...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Today, 07:20 AM
Replies: 1
Views: 25
Posted By mon2
Re: Tomtom GO 920 touch screen doesn't work anymore

Replace the digitizer - see many on Ebay / Aliexpress.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Today, 06:12 AM
Replies: 1
Views: 19
Posted By mon2
Re: Macbook Air A1465 - 820-00164-A , No reaction to power button

Yes.

Reference:
https://www.logi.wiki/index.php?title=PPBus_G3H

Check the voltage of the SMBUS lines (SDA & SCL) which are used to communicate with the ISL regulator to dial up the boost...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Today, 05:04 AM
Replies: 1
Views: 25
Posted By mon2
Re: HP Envy 15 inch HP-Vanilla-6050A28-A03 no image

Remove all power. Meter in resistance mode.

What is the resistance to ground of the coil with no power?
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Today, 04:32 AM
Replies: 1
Views: 29
Posted By mon2
Re: laptop screen pull glue strips

Hi. Try "LCD tape". It is common for mobile screen repair. You can buy complete tape kits for macbook, ipad and imac markets on AliExpress.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals Today, 02:35 AM
Replies: 6
Views: 116
Posted By mon2
Re: iMac A1312 Mid2011 820-2828A microphone not working

Remove all power. Meter in lowest resistance scale.

Check the resistance from the pin on the connector and to the one side of the inductor on this trace. It should be ~0 ohms.

Then check after...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 08:02 PM
Replies: 2
Views: 42
Posted By mon2
Re: Dell Vostro 3550 (v A01 with BQ24707) Plugged in, Not Charging

See attached.

Is your board layout similar ?

1) Meter in DC volts mode (20v scale is ok).

2) Measure the voltage of each pin on the battery connector and post the readings here for a review....
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 05:51 PM
Replies: 8
Views: 68
Posted By mon2
Re: help me, Dell 7567 compal la-d993p 1.6v on power button

Configure the meter into diode mode.

Remove all power.

Red meter probe (yes red) to ground.

Black meter probe to the same test point.

What is the diode mode reading?
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 03:45 PM
Replies: 3
Views: 56
Posted By mon2
Re: Dell E5550 no power up

PQ6A and PQ6B = 2 x mosfets inside a single package (ie. Dual mosfets inside the package).
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 03:44 PM
Replies: 8
Views: 68
Posted By mon2
Re: help me, Dell 7567 compal la-d993p 1.6v on power button

Remove all power.

Check the resistance to ground of RE31 (pin #2) on the side that is 1v6.

What is the resistance reading ? Also post the scale used on the meter.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 03:09 PM
Replies: 62
Views: 885
Posted By mon2
Re: Macbook 820-3115 missing 3V42_G3H

How much current can your power supply support ?
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 02:27 PM
Replies: 12
Views: 104
Posted By mon2
Re: dell E6410 no power

Excellent. What was the fix ?
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals Yesterday, 01:54 PM
Replies: 2
Views: 71
Posted By mon2
Re: Need help for Gainward RTX 2080 Super repair

Confirm the small SMD components are present near the PCIe gold fingers.

Sometimes, a part can be damaged or go missing which will halt the detection of the PCIe adapter (any). Do inspect both...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 11:34 AM
Replies: 62
Views: 885
Posted By mon2
Re: Macbook 820-3115 missing 3V42_G3H

Watch this video:

https://www.youtube.com/watch?v=EWuzmIz7hOE

Then with your power supply set to 0v8 (yes < 1v0), current @ 2A-5A should be ok, apply the red power supply lead onto PPBUS_G3H.
...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 11:13 AM
Replies: 17
Views: 191
Posted By mon2
Re: [help]asus x510unr rev 3 dead

Ok. To confirm, you have PL8302 lifted by one leg or removed from the board ?

Still have this low resistance ? Then review the trace with PSP8302 -> leads to a resistor @ PR8313. Is this correct ?...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 11:08 AM
Replies: 12
Views: 104
Posted By mon2
Re: dell E6410 no power

Attached. It is from a paid sub that is locked.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 10:40 AM
Replies: 17
Views: 191
Posted By mon2
Re: [help]asus x510unr rev 3 dead

Can you confirm the measurements for PQH8301 mosfet?

Which scale on your meter was used?

These are very low resistance values and appears to be shorted.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 10:21 AM
Replies: 12
Views: 104
Posted By mon2
Re: dell E6410 no power

Confirm that VBAT is present to power U36 (RTC_CELL_VBAT).
Forum: Schematic Requests ONLY! Yesterday, 10:18 AM
Replies: 3
Views: 60
Posted By mon2
Re: asus p553UJ rev 2.0 schematic

Not aware of any public schematics for this logic board but see a repair guide that is locked to my paid sub.

Post pics of the cap that has failed and pics of the region of the logic board. Caps...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 10:16 AM
Replies: 11
Views: 206
Posted By mon2
Re: Identify IC. Board code: 2019G1 Moorea 13 intel 18744-1

I would share the ORIGINAL pic from your motherboard and this new reference from Ebay with a supplier on Aliexpress. They are quite bright and able to source the weirdest parts from within China.
...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 10:11 AM
Replies: 17
Views: 191
Posted By mon2
Re: [help]asus x510unr rev 3 dead

Which jumper are you referencing ? Each jumper is fixed on the logic board ?

Only pjp8303 has been removed ?

If yes, focus on the 2 mosfets linked to this voltage rail.

Place the meter in...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 09:58 AM
Replies: 17
Views: 191
Posted By mon2
Re: [help]asus x510unr rev 3 dead

Confirm the partial schematic posted earlier. If you have broken each of the 'X' marked PCB jumpers, why is there such a low resistance to ground on the LEFT side = regulator side of the traces ?
...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 09:51 AM
Replies: 3
Views: 974
Posted By mon2
Re: 8440p no display on internal screen

1) See attached.

2) Confirm there is no damage to the LCD connector / interface cabling for the display panel.

3) Meter in DC volts mode (30v or higher is ok). Carefully measure the voltage on...
Showing results 1 to 25 of 500

 
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