LCD TV and Monitor basic troubleshooting guides - Page 7

**budm** · 11-21-2014, 03:38 PM

Backlights driving methods.

asjad · 11-22-2014, 07:08 AM

what is problem Samsung lcd le32a457c1d no display and picture but only blue

**selldoor** · 11-22-2014, 07:18 AM

Please start your own thread (with pictures of YOUR boards)
This is a "Sticky" for reference only.

**budm** · 12-05-2014, 02:10 PM

SMD Codes.
http://www.s-manuals.com/smd

m.k. · 12-07-2014, 11:27 AM

Hi,No schematics are available to my knowledge.
I have recently repaired the motherboard with problem of No operation except power led blinking when operating with remote or panel switches.

Just heated the metal shielded box which has the micro processor ICs.

**triplefour** · 12-16-2014, 12:08 AM

how do people still not know how to read/use a forum???

**budm** · 12-16-2014, 01:37 PM

how to recognize t-con defects_SAMSUNG

**budm** · 01-04-2015, 05:57 PM

Panasonic and KEMET high freq switchung polypropylene cap for power supply.
KEMET POLYMER TANTALUM (sub for NEC TONKIN NE CAP) for SAMASUNG main board

**budm** · 01-05-2015, 09:24 PM

Samsung LNXXA550P3 series with bad caps on the main board, TV makes squealing static sound through speakers, cycle on and off, etc.
Temporary solder in 100uF 10V low ESR cap in parallel with C102 to see if it solves the problem, but make sure the power supply caps are OK first.
KEMET Polymer Tantalum caps can be used.

skanknpunx · 01-07-2015, 12:27 AM

I need a service manual for Sharp LC-46le620ut cant find one online for free. any healp would be great

**budm** · 01-07-2015, 12:31 AM

Try here:
http://elektrotanya.com/?q=showresul...at2=schematics

**budm** · 01-07-2015, 03:59 PM

http://elektrotanya.com/sharp_lc-42l.../download.html

skanknpunx · 01-07-2015, 04:14 PM

Sorry, but I am not seeing where to download it on that page Without it taking me to another website or installing 3rd party software. Where on the page can I click to download and just get the manual?

thanks

**selldoor** · 01-07-2015, 04:30 PM

Skanknpunx - you are really messing this teaching thread up - start your own

**budm** · 01-08-2015, 11:50 AM

http://www.badcaps.net/forum/showpos...&postcount=129
http://www.badcaps.net/forum/showthread.php?t=25555

This PANASONIC Polymer Tantalum will work too (as used and confirmed by aaronwt6):
http://www.badcaps.net/forum/showpos...&postcount=129

http://www.mouser.com/Search/Product...67-10TPE47MAZB

**budm** · 01-08-2015, 05:44 PM

Another confirmed bad caps on SAMSUNG MAIN BOARD for LNXXA55X series.
http://www.badcaps.net/forum/showthr...362#post518362

Please note that the BAR marking on those two TANTALUM caps = POSITIVE pin.

Kilroys · 01-13-2015, 07:06 AM

Ready for 2013 Samsung lcd ?

abrar.javed · 01-17-2015, 07:49 PM

learning tv repair and these repair manual must be very useful

trinamcan · 01-18-2015, 08:09 AM

Quote:

Originally Posted by budm

LCD panel disassemble to get to bad lamps assemblies, SAMSUNG 25" TV/MONITOR, also show how to verify if the lamps are bad using spare lamps.
This failed unit you can smell Ozone.

nhìn các bạn sửa tôi rất thích , chúc các bạn vui , tôi là thành viên mới

shadeengineer · 01-18-2015, 01:03 PM

I have a Samsung ln52a550p3fxza, replaced the bad caps about a year ago, now have a strange issue when first powering up the tv, there appears to be off colored distortion through out the screen, then periods of green pixalition on black areas, after a period of time picture returns to normal, scanned through the forums, checked for other reports of this issue without any luck. I suspect T-con board but would like your opinions, Thanks

11-22-2014, 07:08 AM	#122
asjad New Member Join Date: Nov 2014 City & State: jhelum punjab My Country: pakistan I'm a: Knowledge Seeker Posts: 2	Re: LCD TV and Monitor basic troubleshooting guides what is problem Samsung lcd le32a457c1d no display and picture but only blue

11-22-2014, 07:18 AM	#123
selldoor Slow Learner Join Date: Dec 2010 City & State: Lancashire UK Posts: 7,853	Re: LCD TV and Monitor basic troubleshooting guides Please start your own thread (with pictures of YOUR boards) This is a "Sticky" for reference only.

12-07-2014, 11:27 AM	#125
m.k. New Member Join Date: Dec 2014 City & State: indore m.p. My Country: india I'm a: Knowledge Seeker Posts: 1	Re: LCD TV and Monitor basic troubleshooting guides Hi,No schematics are available to my knowledge. I have recently repaired the motherboard with problem of No operation except power led blinking when operating with remote or panel switches. Just heated the metal shielded box which has the micro processor ICs.

12-16-2014, 12:08 AM	#126
triplefour Badcaps Veteran Join Date: May 2014 City & State: Hilo, HI My Country: USA I'm a: Knowledge Seeker Posts: 1,336	Re: LCD TV and Monitor basic troubleshooting guides how do people still not know how to read/use a forum??? __________________ Don't fear the repair...

01-07-2015, 12:27 AM	#130
skanknpunx New Member Join Date: Jan 2015 City & State: va My Country: usa I'm a: Knowledge Seeker Posts: 5	Re: LCD TV and Monitor basic troubleshooting guides I need a service manual for Sharp LC-46le620ut cant find one online for free. any healp would be great

01-07-2015, 12:31 AM	#131
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 Try here: http://elektrotanya.com/?q=showresul...at2=schematics

01-07-2015, 03:59 PM	#132
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 http://elektrotanya.com/sharp_lc-42l.../download.html

01-07-2015, 04:14 PM	#133
skanknpunx New Member Join Date: Jan 2015 City & State: va My Country: usa I'm a: Knowledge Seeker Posts: 5	Re: LCD TV and Monitor basic troubleshooting guides Sorry, but I am not seeing where to download it on that page Without it taking me to another website or installing 3rd party software. Where on the page can I click to download and just get the manual? thanks

01-07-2015, 04:30 PM	#134
selldoor Slow Learner Join Date: Dec 2010 City & State: Lancashire UK Posts: 7,853	Re: LCD TV and Monitor basic troubleshooting guides Skanknpunx - you are really messing this teaching thread up - start your own

01-08-2015, 05:44 PM	#136
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 Another confirmed bad caps on SAMSUNG MAIN BOARD for LNXXA55X series. http://www.badcaps.net/forum/showthr...362#post518362 Please note that the BAR marking on those two TANTALUM caps = POSITIVE pin. Last edited by budm; 01-08-2015 at 05:54 PM..

01-17-2015, 07:49 PM	#138
abrar.javed New Member Join Date: Jan 2015 City & State: UP My Country: INDIA I'm a: Knowledge Seeker Posts: 1	Re: LCD TV and Monitor basic troubleshooting guides learning tv repair and these repair manual must be very useful

01-18-2015, 01:03 PM	#140
shadeengineer New Member Join Date: Jan 2015 City & State: Estill springs My Country: United States I'm a: Knowledge Seeker Posts: 6	Re: LCD TV and Monitor basic troubleshooting guides I have a Samsung ln52a550p3fxza, replaced the bad caps about a year ago, now have a strange issue when first powering up the tv, there appears to be off colored distortion through out the screen, then periods of green pixalition on black areas, after a period of time picture returns to normal, scanned through the forums, checked for other reports of this issue without any luck. I suspect T-con board but would like your opinions, Thanks

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