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#381 |
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
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![]() Correct way to report the Voltage reading at the connector:
CN201 connector from Power Board to Main Board: Pin__Label_____TV off volts__TV on volts 1____3.3V________3.33__________3.31 2____AC-DET______3.41__________3.39 3____PS-ON_______0.08__________3.28 4____12V-AU______0.60_________12.24 5____GND_________0.00__________0.00 6____GND_________0.00__________0.00 7____GND_________0.00__________0.00 8____12V REG_____0.56_________12.24 9____12V REG_____0.54_________12.24 10___BL-ERR______0.00__________3.26 11___LED-ON______0.00__________3.24 12___LED-BR______0.00__________0.82 13___NC__________0.00__________0.00 14___T2V T CON___0.04_________12.24 15___T CON_ON____0.00__________3.17 Thanks for splinke for making easy for us to help: https://www.badcaps.net/forum/showthread.php?t=70560
__________________
Never stop learning Basic LCD TV and Monitor troubleshooting guides. http://www.badcaps.net/forum/showthr...956#post305956 Voltage Regulator (LDO) testing: http://www.badcaps.net/forum/showthr...999#post300999 Inverter testing using old CFL: http://www.badcaps.net/forum/showthr...er+testing+cfl Tear down pictures : Hit the ">" Show Albums and stories" on the left side http://s807.photobucket.com/user/budm/library/ TV Factory reset codes listing: http://www.badcaps.net/forum/showthread.php?t=24809 Last edited by budm; 07-05-2018 at 05:56 PM.. |
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#382 |
New Member
Join Date: Jul 2018
City & State: FPO AP
My Country: USA
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Posts: 6
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![]() Hey all! I''m not sure if it's ok to ask some help from this thread or if i'm supposed to post a new thread. I'll go ahead and state my issue and just let me know if i'm doing something wrong lol.
Anyways, my Sony 46" KDL46V5100 just stopped working, as i was watching, it suddenly had like a faded blurring picture and just went black and no sound whatsoever. It's been like that since. So reading the LCD trouble shooting guide posted in the thread, it sounds like my main board needs to be replaced and wanted to see what you think. Symptoms: No picture, no audio and no backlight. I also did the flashlight test and didn't see any images. Troubleshot: - Power supply board: I have my standby 3.3V and ON/OFF 3.3V, and the 15V & 12V going to main board. I also have 12V going to the TCon board. Unsure about power supply: - Dimmer(.49V), backlight on/off(1.15V), inv_err(2V), gnd, & barancer_err(0V), this connecter i measured at leads to the main board. I assume these voltages aren't correct and should be more? - VCC(12V), FB(0), FB(0), GND, GND, LD(11.4), LD(11.4V), this connector leads to the inverter board. Are these voltages good or no good? I get 11.4V on LD and 0V on FB and i don't know what these are. The VCC 12V is there tho and that's what the board is marked at so that should be good. I also checked the power supply fuse and that's good. So after reading the troubleshooting guide again, I'm thinking the main board. Please let me know what you think, thank you in advance! |
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#383 |
New Member
Join Date: Aug 2018
City & State: red sea
My Country: sudan
I'm a: Knowledge Seeker
Posts: 3
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![]() Thank you
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#384 |
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
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![]() LG 50LA6205 bad panel with taped off fixed by neilc6 and davi.p
https://www.badcaps.net/forum/showth...904#post851904 |
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#385 |
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
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![]() Info about T-CON:
Info provided by http://tvrepairsolution.blogspot.com http://tvrepairsolution.blogspot.com...l-rowgate.html |
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#386 |
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
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![]() AOZ9148 LED driver IC used in many Samsung LED power supply section.
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#387 |
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
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![]() Samsung UN50H5203
https://www.badcaps.net/forum/showthread.php?t=72153 https://www.badcaps.net/forum/showthread.php?t=72173 This is related to LED driver topology such as the one using AOZ1948 IC. Samsung boards BN44-00775A, BN44-00772A use that topology. |
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#388 |
New Member
Join Date: Oct 2018
City & State: port said
My Country: Egypt
I'm a: Knowledge Seeker
Posts: 1
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![]() Great job Bud M.
Very handy and informative guides. Keep it up |
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#389 |
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
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![]() SONY LCD TV (I.E. Sony KDL-55EX700, Sony KDL-46EX710) 7-Blink code for temperature error. This can be fault direction, it can be due to problem in the HLR board.
https://www.badcaps.net/forum/showthread.php?t=46810 https://www.badcaps.net/forum/showth...ard#post706697 |
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#390 |
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
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![]() TFT-LCD Production Process Explained: LG
https://www.lgblog.com.my/2014/10/15...ess-explained/ Understanding Today's LCD Screen Technology: Samsung https://pid.samsungdisplay.com/en/le.../lcd-structure |
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#391 |
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
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![]() LG T-CON Training manual.
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#392 |
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
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![]() Some interesting read about the TV display technology.
https://www.displaydaily.com/article...heir-tv-allies |
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#393 |
Badcaps Veteran
Join Date: Sep 2012
City & State: Germany
My Country: Germany
I'm a: Knowledge Seeker
Posts: 266
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![]() http://televid-sib.ru/index.php?topi...9572#msg139572
TRAINING VESTEL 17MB 120 Registration required! |
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#394 |
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
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![]() Panasonic training material:
http://service.panasonic.ca/pcs/EXT_...circuit_v2.pdf Last edited by budm; 12-07-2018 at 11:29 AM.. |
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#395 | |
New Member
Join Date: Sep 2008
Posts: 8
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![]() Quote:
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#396 |
Badcaps Veteran
Join Date: Sep 2012
City & State: Germany
My Country: Germany
I'm a: Knowledge Seeker
Posts: 266
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![]() Panasonic Training LCD TV links
See Page 15 LCD TV and Monitor Basic Troubleshooting guides Last edited by thoma; 12-14-2018 at 08:50 AM.. |
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#397 |
New Member
Join Date: Dec 2018
City & State: algiers
My Country: algeria
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![]() Many thanks
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#398 |
New Member
Join Date: Nov 2017
City & State: Athens
My Country: Greece
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![]() Great job ,guys. Happy new year.
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#399 |
New Member
Join Date: Jan 2019
City & State: Oroquieta city
My Country: Philippine
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Posts: 1
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![]() Please help.! What is the problem Sony 32bx320 with sound but no pictures
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#400 |
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
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