LCD TV and Monitor basic troubleshooting guides

**budm** · 01-23-2013, 11:27 AM

I cannot find the original post so this is the new post that I will have it liked to my signature file. It will be good if it can be on the sticky.

Notes: When make voltage measurement in the DEADLY Primary (HOT) side, the negative leg of the LARGE filter cap will be the ground ref.
The chassis will be the ground ref for the Secondary (COLD) side.
You should at least plug the unit you are working on into the GFCI outlet for safety.

**Beowulf** · 01-23-2013, 12:52 PM

Thanks Bud M.

Have not seen it yet and I already like it.

Steve.B · 01-23-2013, 03:06 PM

Great job Bud M. Very handy and informative guides. I am sure these will be of great use to a lot of people. Certainly agreed that these should be 'stickied'.

**Beowulf** · 01-23-2013, 04:55 PM

Oops forgot to say I vote for this to be stickied.

**tom66** · 01-23-2013, 05:02 PM

Excellent guides. Sticky please! Along with the factory reset guide of Randtek's that got buried.

**budm** · 01-23-2013, 05:26 PM

Yes, the stickied for the factory reset too, that is really good one.

**retiredcaps** · 01-23-2013, 06:58 PM

I'll ask ratdude747 (moderator) to make this a sticky. He's a reasonable person to work with and quick to respond when he's not busy with school.

This will hopefully decrease the frequent questions and workload for everyone.

**ratdude747** · 01-23-2013, 08:47 PM

Quote:

Originally Posted by retiredcaps

I'll ask ratdude747 (moderator) to make this a sticky. He's a reasonable person to work with and quick to respond when he's not busy with school.

This will hopefully decrease the frequent questions and workload for everyone.

BAM!

Thread stuck.

**tom66** · 01-23-2013, 08:53 PM

Quote:

Originally Posted by ratdude747

BAM!

Thread stuck.

Is it possible to sticky this one, too?
http://www.badcaps.net/forum/showthread.php?t=24809

**tibimakai** · 01-24-2013, 11:42 AM

Excellent work Bud!!
May I ask you, if you could include in these documents, some pictures with the standby voltage area(or other important areas of the device), the most important ICs(and what they do), how do we know if the PS should have 166V or 450V.

Foppel · 01-24-2013, 12:28 PM

Hi Budm i like your cats

Thanks for the Links. This page also helps me a lot: http://youclickspk.blogspot.de/p/tes...l#.UQF8yGf3G71

cheers - Foppel

**budm** · 01-27-2013, 07:25 PM

This is SONY training manual for the T-CON.

**ohmmy** · 01-29-2013, 10:11 AM

Wow great little tutorial budm. Explains things neatly and in correct sequence. Great guide!

coxtel81 · 02-02-2013, 11:57 AM

Excellent work

dejesus · 02-06-2013, 03:36 PM

This inf. is great. A lot to learn in this side. hard to find inf. like this. Great!!!

**budm** · 02-14-2013, 11:24 PM

TFT voltages:
Sanyo LCD display training manual.
AS15G (EC5575) spec

Washed out picture:
http://www.badcaps.net/forum/showthr...mma#post304275

rukmani · 03-10-2013, 08:46 AM

thank sir good work...................

Ahakim · 04-07-2013, 04:20 PM

Need full Schematic of LG 32LD330 model. Who can help???...

HerbTech1 · 04-09-2013, 07:27 PM

Thank you very much for this post. Lots of good reading ahead.

sinaaa · 04-22-2013, 01:11 PM

Need full Schematic of samsung ln32c450e1d model. Who can help?

01-23-2013, 12:52 PM	#2
Beowulf Senior Member Join Date: Dec 2012 City & State: Newark, NJ My Country: USA I'm a: Knowledge Seeker Posts: 151	Re: LCD TV and Monitor basic troubleshooting guides Thanks Bud M. Have not seen it yet and I already like it.

01-23-2013, 03:06 PM	#3
Steve.B Member Join Date: Dec 2008 City & State: North Devon My Country: UK Line Voltage: 230v AC 50Hz I'm a: Knowledge Seeker Posts: 79	Re: LCD TV and Monitor basic troubleshooting guides Great job Bud M. Very handy and informative guides. I am sure these will be of great use to a lot of people. Certainly agreed that these should be 'stickied'.

01-23-2013, 04:55 PM	#4
Beowulf Senior Member Join Date: Dec 2012 City & State: Newark, NJ My Country: USA I'm a: Knowledge Seeker Posts: 151	Re: LCD TV and Monitor basic troubleshooting guides Oops forgot to say I vote for this to be stickied.

01-23-2013, 05:02 PM	#5
tom66 EVs Rule Join Date: Apr 2011 City & State: Leeds My Country: UK Line Voltage: 230Vac 50Hz I'm a: Professional Tech Posts: 32,373	Re: LCD TV and Monitor basic troubleshooting guides Excellent guides. Sticky please! Along with the factory reset guide of Randtek's that got buried. __________________ Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead! Free service manuals: http://www.toms-service-manuals.com/ -- 72 LED/LCD TVs, 5 monitors, 28 plasma TVs, and 2 AVR 6.1 amplifiers fixed! -- I repair Pioneer 9G Plasma Main Boards & KRP-M01 Media Receivers (PM me for info) 2 Pioneer KURO 9G, 12 Panasonic LCD/Plasma, 1 Sony LCD, 1 NEC Plasma, 2 Yamaha HTS, 5 Sharp LCDs, 5 Toshiba LCDs, 7 Philips Plasma/LCD, 1 Hitachi Plasma, 11 LG LCD/Plasma, 18 Samsung LED/LCD/Plasma, 1 Thomson Plasma, 1 Atec LCD, 1 Hanspree LCD, 1 Xerox LCD, 1 Harwa LCD, 2 Proview LCD, 2 Hyundai LCD, 1 "Onn" LCD, 1 Grundig LCD, 1 Dell LCD, 1 iiyama LCD, 1 Acer LED, 1 Logik LCD, 1 Baird (China) LCD, 6 Bush LCDs, 22 Vestel LCDs (Best->Worst)

01-23-2013, 05:26 PM	#6
budm Badcaps Veteran Join Date: Feb 2010 City & State: S.F. Bay area My Country: USA Line Voltage: 120V 60Hz I'm a: Knowledge Seeker Posts: 39,206	Re: LCD TV and Monitor basic troubleshooting guides Yes, the stickied for the factory reset too, that is really good one.

01-23-2013, 06:58 PM	#7
retiredcaps Badcaps Veteran Join Date: Apr 2010 City & State: Canada Posts: 9,200	Re: LCD TV and Monitor basic troubleshooting guides I'll ask ratdude747 (moderator) to make this a sticky. He's a reasonable person to work with and quick to respond when he's not busy with school. This will hopefully decrease the frequent questions and workload for everyone. __________________ --- begin sig file --- If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post. We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings. Please do not post inline and offsite as they slow down the loading of pages. --- end sig file --- Last edited by retiredcaps; 01-23-2013 at 07:02 PM..

01-24-2013, 11:42 AM	#10
tibimakai Badcaps Veteran Join Date: Jan 2012 City & State: Los Angeles/San Dimas, CA My Country: USA Line Voltage: 120VAC 60Hz I'm a: Knowledge Seeker Posts: 3,476	Re: LCD TV and Monitor basic troubleshooting guides Excellent work Bud!! May I ask you, if you could include in these documents, some pictures with the standby voltage area(or other important areas of the device), the most important ICs(and what they do), how do we know if the PS should have 166V or 450V.

01-24-2013, 12:28 PM	#11
Foppel Member Join Date: Jan 2013 City & State: NRW My Country: Germany Line Voltage: 230VAC 50Hz I'm a: Hobbyist Tech Posts: 28	Re: LCD TV and Monitor basic troubleshooting guides Hi Budm i like your cats Thanks for the Links. This page also helps me a lot: http://youclickspk.blogspot.de/p/tes...l#.UQF8yGf3G71 cheers - Foppel

01-29-2013, 10:11 AM	#13
ohmmy Senior Member Join Date: Jan 2013 City & State: MA My Country: USA Line Voltage: 120VAC 60Hz I'm a: Knowledge Seeker Posts: 161	Re: LCD TV and Monitor basic troubleshooting guides Wow great little tutorial budm. Explains things neatly and in correct sequence. Great guide!

02-02-2013, 11:57 AM	#14
coxtel81 New Member Join Date: Feb 2013 City & State: GALATI My Country: ROMANIA I'm a: Knowledge Seeker Posts: 2	Re: LCD TV and Monitor basic troubleshooting guides Excellent work

02-06-2013, 03:36 PM	#15
dejesus Member Join Date: Jan 2013 City & State: orlando, florida My Country: usa I'm a: Knowledge Seeker Posts: 98	Re: LCD TV and Monitor basic troubleshooting guides This inf. is great. A lot to learn in this side. hard to find inf. like this. Great!!!

03-10-2013, 08:46 AM	#17
rukmani New Member Join Date: Mar 2013 City & State: bihar My Country: india I'm a: Knowledge Seeker Posts: 2	Re: LCD TV and Monitor basic troubleshooting guides thank sir good work...................

04-07-2013, 04:20 PM	#18
Ahakim Member Join Date: Apr 2013 City & State: charleston, WVa My Country: USA Line Voltage: 117VAC 60Hz I'm a: Hobbyist Tech Posts: 64	Re: LCD TV and Monitor basic troubleshooting guides Need full Schematic of LG 32LD330 model. Who can help???...

04-09-2013, 07:27 PM	#19
HerbTech1 New Member Join Date: Apr 2013 City & State: Hamilton, ON My Country: Canada I'm a: Knowledge Seeker Posts: 2	Re: LCD TV and Monitor basic troubleshooting guides Thank you very much for this post. Lots of good reading ahead.

04-22-2013, 01:11 PM	#20
sinaaa New Member Join Date: Apr 2013 City & State: damascus My Country: syria I'm a: Knowledge Seeker Posts: 1	Re: LCD TV and Monitor basic troubleshooting guides Need full Schematic of samsung ln32c450e1d model. Who can help?

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