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Search: Posts Made By: axlmastr
Forum: Troubleshooting TVs and Video Sources 11-15-2018, 05:30 AM
Replies: 4
Views: 113
Posted By axlmastr
Re: Insignia NS-48D51NA15 48" TV - No Backlight but image is present

One additional thought I just noticed upon review of the board. The CapXon caps in the corner nearest the black heatsink are rated 68uF 200v. My voltage output at the 2P connector (blk/wht wires) to...
Forum: Troubleshooting TVs and Video Sources 11-15-2018, 05:21 AM
Replies: 4
Views: 113
Posted By axlmastr
Re: Insignia NS-48D51NA15 48" TV - No Backlight but image is present

Thanks for the response. At least someone did.

I don't plan on repairing other tv's so an LED tester is not an option. There is a thread posted by Robert Phelps in Dec 2017 titled "insignia ns-48...
Forum: Troubleshooting TVs and Video Sources 11-04-2018, 02:07 PM
Replies: 4
Views: 113
Posted By axlmastr
Insignia NS-48D51NA15 48" TV - No Backlight but image is present

The symptom is no backlight. If looking at the screen from the right angle or using a flashlight I see the image and of course sound works. I remember repairing earlier monitor backlight issues with...
Forum: Troubleshooting TVs and Video Sources 10-20-2018, 06:57 PM
Replies: 16
Views: 730
Posted By axlmastr
Re: insignia ns-48 no backlights

I have the same model TV to look at. The symptom is no backlight. If looking at the screen from the right angle or using a flashlight I see the image and of course sound works. I remember repairing...
Forum: Troubleshooting TVs and Video Sources 11-21-2016, 06:31 AM
Replies: 27
Views: 1,858
Posted By axlmastr
Re: LG 37LG10-UM has grey screen color and ghosting

Thanks I'll give it a try and post my findings
Forum: Troubleshooting Audio Equipment 11-20-2016, 06:40 PM
Replies: 3
Views: 3,814
Posted By axlmastr
Re: Apple HiFi A1121

I recently sold the Apple HiFi "as-is" to a buyer on ebay with full disclosure of the issues. A lot of cold solder joints on these unit's power supply PCB. I just didn't really care too much to fix...
Forum: Troubleshooting TVs and Video Sources 11-20-2016, 11:58 AM
Replies: 27
Views: 1,858
Posted By axlmastr
Re: LG 37LG10-UM has grey screen color and ghosting

The IC AS15-U is installed and running cool. I now have color and a full display without the odd contrast issue. See pictures.

I have now a bit of colored noise in the display. Thin random lines...
Forum: Troubleshooting Computer Displays 11-17-2016, 06:37 AM
Replies: 5
Views: 927
Posted By axlmastr
Re: Syncmaster SA350 LED loses backlight - 2nd time seeing this monitor

@1supertech - You are referring to the main fuse F901 next to the 12V power connector? Yes it's good because the unit powers on perfectly as stated in the initial post.

This is not a dead monitor...
Forum: Troubleshooting Computer Displays 11-17-2016, 06:24 AM
Replies: 5
Views: 927
Posted By axlmastr
Re: Syncmaster SA350 LED loses backlight - 2nd time seeing this monitor

@Capleaker - This doesn't have a PSU board since it's power is integrated in the board pictured as evident by the low voltage connector in the bottom left of pic one. This has an external brick...
Forum: Troubleshooting Computer Displays 11-16-2016, 04:52 PM
Replies: 5
Views: 927
Posted By axlmastr
Syncmaster SA350 LED loses backlight - 2nd time seeing this monitor

I had another thread here for this same monitor where I corrected a separate issue by replacing the IC401 on the board and uploading the firmware (red light of death).

Now the same monitor is...
Forum: Troubleshooting Audio Equipment 11-16-2016, 04:40 PM
Replies: 33
Views: 17,561
Posted By axlmastr
Re: harmon/kardon sub-ts14 makes high-pitched squeal sound

I found a company in Illinois on ebay that does electronic service work. They have individual listings for all of the various plate amplifiers like the subject of this post. They offer to fix it like...
Forum: Troubleshooting TVs and Video Sources 11-16-2016, 09:15 AM
Replies: 27
Views: 1,858
Posted By axlmastr
Re: LG 37LG10-UM has grey screen color and ghosting

I ordered the the AS15-U IC the other day and will post my findings when I get it soldered in. It's a pain finding the real thing these days. Sooo many counterfeits!

I have a new post for another...
Forum: Troubleshooting TVs and Video Sources 11-13-2016, 11:18 AM
Replies: 27
Views: 1,858
Posted By axlmastr
Re: LG 37LG10-UM has grey screen color and ghosting

Ran it for 5 min

Touched top of IC with the tip of my finger to a count of 2 sec and.... OWWW! Hot like you said it might be.

Used one of those handheld laser thermometers to get as close to an...
Forum: Troubleshooting TVs and Video Sources 11-13-2016, 08:41 AM
Replies: 27
Views: 1,858
Posted By axlmastr
Re: LG 37LG10-UM has grey screen color and ghosting

These two rows are marked XPOL_1 & XSTB_1. The top row has a "B" before it.

Here's the voltages:

Top Row L-R: 15.56; 15.51; 15.49; 14.08; 15.39; 15.13; 1.05; 0.18
Bottom Row L-R: 15.50; 15.42;...
Forum: Troubleshooting TVs and Video Sources 11-11-2016, 01:29 PM
Replies: 27
Views: 1,858
Posted By axlmastr
Re: LG 37LG10-UM has grey screen color and ghosting

Okay I'm game. How would I measure the gamma voltages?
Forum: Troubleshooting TVs and Video Sources 11-11-2016, 12:57 PM
Replies: 27
Views: 1,858
Posted By axlmastr
Re: LG 37LG10-UM has grey screen color and ghosting

Thanks for the reply, but if it were backlight then the screen would be dark and the image would need to be seen with a flashlight. The image is quite bright so backlight is not an issue. Though I...
Forum: Troubleshooting TVs and Video Sources 11-11-2016, 08:09 AM
Replies: 27
Views: 1,858
Posted By axlmastr
Forum: Troubleshooting TVs and Video Sources 11-05-2016, 12:39 PM
Replies: 27
Views: 1,858
Posted By axlmastr
Re: LG 37LG10-UM has grey screen color and ghosting

Thanks. It's not my first rodeo here. I've been busy with other projects to take the pictures. They'll be up later today. Didn't really expect a response.
Forum: Troubleshooting TVs and Video Sources 11-05-2016, 08:34 AM
Replies: 27
Views: 1,858
Posted By axlmastr
LG 37LG10-UM has grey screen color and ghosting

I have a friend's LG3710-UM Prod date Dec 2008 to look at.

When turned on the screen is light grey with a sort of ghosting effect when the "no signal" icon dances around the screen. All four...
Forum: Troubleshooting Computer Displays 09-25-2016, 06:23 AM
Replies: 3
Views: 1,108
Posted By axlmastr
Re: Inspiron laptop boots to white screen with tested replacement screen assembly

@diff - Yes I did test it before ship as with all my items. I did state that in my post both in the title and the message. It's a 15" clearly stated in the listing but after so many people don't read...
Forum: Troubleshooting Computer Displays 09-24-2016, 05:45 AM
Replies: 3
Views: 1,108
Posted By axlmastr
Inspiron laptop boots to white screen with tested replacement screen assembly

I just sold a tested screen assembly from a Dell Inspiron 5150 on ebay. This is the whole assembly not just the panel so all the buyer has to do is bolt it on and connect the LVDS cable, wifi, etc....
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 09-24-2016, 05:13 AM
Replies: 6
Views: 955
Posted By axlmastr
Re: Dell Vostro 1510 display issues

This thread is closed. I received the correct answer in another category.
Forum: Troubleshooting Computer Displays 09-05-2016, 07:13 AM
Replies: 2
Views: 747
Posted By axlmastr
Thumbs up Re: Dell Vostro 1510 display has lines

Thank you kc8adu! Once again you have come through with an expert's answer!
You :rock:
Panel is ordered and my friend will be happy when I get it installed.

This thread is considered closed!
Forum: Troubleshooting Computer Displays 08-28-2016, 01:26 PM
Replies: 2
Views: 747
Posted By axlmastr
Dell Vostro 1510 display has lines

Friend's machine. I have board-level repair skills he doesn't.

Machine fell from a 5 ft shelf to a tile floor. No visible signs of damage other than a small crack in the upper right corner the...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 08-11-2016, 01:27 PM
Replies: 6
Views: 955
Posted By axlmastr
Dell Vostro 1510 display issues

Friend's machine. I have board-level repair skills he doesn't.

Machine fell from a 5 ft shelf to a tile floor. No visible signs of damage other than a small crack in the upper right corner the...
Showing results 1 to 25 of 88

 
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