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Search: Posts Made By: Th3_uN1Qu3
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 08-09-2018, 07:57 AM
Replies: 9
Views: 160
Posted By Th3_uN1Qu3
Re: Alienware X51 R2 alien head LED color issue

Bad LEDs 99%. I have even seen some LEDs on case fans die lately.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 08-09-2018, 07:55 AM
Replies: 4
Views: 81
Posted By Th3_uN1Qu3
Lenovo ID pin resistor values

Hello, as you know, for Lenovo laptop, the AC adapters have an identification pin. They use a simple system with a resistor to ground from the ID pin.

Here are some values for the resistors:
65W...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 08-06-2018, 08:08 AM
Replies: 31
Views: 352
Posted By Th3_uN1Qu3
Re: acer es1-711 problem..... white screen and now black screen

These low-end machines are barely worth repairing at all anymore. I have earned a lot more from parting out one of those that I got partially broken (USB ports not working, shorted inside SoC) than I...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 08-06-2018, 08:01 AM
Replies: 9
Views: 124
Posted By Th3_uN1Qu3
Re: HP Pavilion DM4 6050A2402401 Motherboard no CPU Vcore

If you have VCC and Enable, it means the controller should turn on the power to the CPU. Since you say you do not have a short on any of the mosfets, replace the controller chip.
Forum: Troubleshooting Power Supplies and Power Supply Design 08-06-2018, 06:13 AM
Replies: 10
Views: 267
Posted By Th3_uN1Qu3
Re: iiyama PSU repair from LCD monitor [fixed]

Just a crap capacitor, but that also shows a marginal design of the PSU. A few months ago, I fully recapped a Fujitsu Siemens monitor built in 2006 that i use as my secondary at work, because it had...
Forum: Other Devices with Bad Capacitors 08-06-2018, 06:05 AM
Replies: 5
Views: 138
Posted By Th3_uN1Qu3
Re: EVGA Titan X Maxwell suspected bad caps

I have tried to reball a Titan Black once, it didn't do anything different after reballing, it would still crash when drivers were installed. The GPU chip is dead, sorry.
Forum: Troubleshooting TVs and Video Sources 08-05-2018, 11:13 PM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

I'll take some pics of the minor maldischarge that occurs now until warm-up, after removing the temp sensor. It's a whole lot better even at start-up.

I did tweak it a little more before bed last...
Forum: Troubleshooting TVs and Video Sources 08-05-2018, 02:57 PM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

Lower Vs makes the trails on high contrast and image retention really bad. Also, it has a really noticeable impact on brightness. I have really sensitive eyes, maybe I notice it more than most...
Forum: Troubleshooting TVs and Video Sources 08-05-2018, 09:25 AM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

Hmm. Low Va seems to cause other misfires so i turned it back to stock setting of 55V. -Vy almost all the way down and Vs at 203.6V. I would have liked to be able to keep Vs higher as it makes the...
Forum: Troubleshooting TVs and Video Sources 08-05-2018, 06:22 AM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

To clarify, along with the 10V boost in Vzb, the control board also does other adjustments when it reaches that temperature threshold, as bringing Vzb back down does not remove the noise. I do recall...
Forum: Troubleshooting TVs and Video Sources 08-04-2018, 01:32 PM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

It still acted up without the thermal pad coupling it to the screen. So I took the CTRL board out again, put some flux on the sensor and removed it with my hot air station. :D

The sensor was...
Forum: Troubleshooting TVs and Video Sources 08-04-2018, 10:45 AM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

Thanks for chiming in Tom, I did notice the panel performs differently at different refresh rates, but i'm sticking to 60Hz for now, because the firmware kicks it out of "PC Mode" at anything other...
Forum: Troubleshooting TVs and Video Sources 08-04-2018, 05:33 AM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

I have built some new coils with 20 strands of 0.3mm wire each. They get about as warm as the originals, so there is a significant current going thru them. The issue is still there.

I have fitted...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-26-2018, 07:00 AM
Replies: 31
Views: 740
Posted By Th3_uN1Qu3
Re: Let's talk about BGA Chip suppliers

You should contact SEE directly and tell them about it, maybe they got some bad stock. I have had zero issues with them so far.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-26-2018, 06:59 AM
Replies: 3
Views: 110
Posted By Th3_uN1Qu3
Re: Password remove for Olivetti S1530 (AMI Bios)

Thanks to member Andrew_R, the password he sent me was the correct one.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-25-2018, 09:22 AM
Replies: 3
Views: 110
Posted By Th3_uN1Qu3
Password remove for Olivetti S1530 (AMI Bios)

Hello guys, I have this laptop with BIOS password. Could not find a BIOS dump anywhere. It is an AMI BIOS. Maybe someone here could remove the password for me?

Thank you.
Forum: Troubleshooting TVs and Video Sources 07-24-2018, 05:36 AM
Replies: 31
Views: 4,100
Posted By Th3_uN1Qu3
Re: Building a cheap ACF tape bonding machine

Sadly, this never took off due to the lack of time, maybe, just maybe, i'll get back into it this year.

Sad to hear about that deal in South Africa. Big manufacturers are determined to screw us...
Forum: Troubleshooting TVs and Video Sources 07-24-2018, 01:16 AM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

Ok, i might have cracked this. Not the panel, of course. :D

Freeze spray showed that the issue is not in the main or the control boards.

I have noticed that the color noise only occurs on...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-23-2018, 11:56 PM
Replies: 31
Views: 740
Posted By Th3_uN1Qu3
Re: Let's talk about BGA Chip suppliers

If it were lead free, it may have melted a little bit but it definitely would not have attached to the board properly. If it sat down on the board at 193C then it was leaded solder, indeed.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-23-2018, 05:17 AM
Replies: 31
Views: 740
Posted By Th3_uN1Qu3
Re: Let's talk about BGA Chip suppliers

Just remembered: I have also undervolted the HP 625, will search thru my notes and skype for the resistor value, i was able to lower the core voltage of the NB to 0.93V (IIRC) maintaining perfect...
Forum: Troubleshooting TVs and Video Sources 07-23-2018, 03:03 AM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

Here's some photos of the boards and the resoldering work i've done on them. Especially on the Z-Sus, that's some horrible wave soldering there, LG. Shame on you.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-23-2018, 02:43 AM
Replies: 31
Views: 740
Posted By Th3_uN1Qu3
Re: Let's talk about BGA Chip suppliers

And here is a Macbook Pro 2011. Replacement chip sold as "bulk".
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-23-2018, 02:36 AM
Replies: 31
Views: 740
Posted By Th3_uN1Qu3
Re: Let's talk about BGA Chip suppliers

The second one is an ASUS X552CL, nVidia GPU had code 43 in device manager, reflow did not change anything. This chip I bought brand new as it was very cheap. With the new chip everything worked...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-23-2018, 02:34 AM
Replies: 31
Views: 740
Posted By Th3_uN1Qu3
Re: Let's talk about BGA Chip suppliers

Here is some more work done with chips from SEE-IC. These have been done a while ago but hadn't gotten around to posting them.

First up is a HP 625. I replaced the Northbridge chip just to check...
Forum: Troubleshooting TVs and Video Sources 07-22-2018, 12:17 PM
Replies: 30
Views: 526
Posted By Th3_uN1Qu3
Re: Getting a LG 60PZ850 tomorrow - anything to watch for?

Went to the hardware store, sadly they did not carry any freeze spray or duster... Picked up a can of contact cleaner though. I also found all the screws needed to assemble the stand (the former...
Showing results 1 to 25 of 500

 
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