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Old 08-03-2019, 04:39 PM   #421
budm
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Default Re: LCD TV and Monitor basic troubleshooting guides

Typican T-CON Voltages:
1. Vin: 12V (we confirmed as present)
2. Vdd (Vlogic, Vddd): 3.3V
3. Vda (Vs, Vsource, Vdda Avdd): 14V to 20V
4. Vgh (Vgon, Von, Vddg): 20V to 30V
5. Vgl (Vgoff, Voff, Veeg): -5V to -7V
Attached Files
File Type: pdf tps65162.pdf (2.12 MB, 29 views)
File Type: pdf TPS65167a.pdf (1.56 MB, 28 views)
File Type: pdf RICHTEK SG010_2018_02.pdf (2.56 MB, 26 views)
File Type: pdf RT6905 sch.pdf (63.2 KB, 17 views)
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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
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Old 08-09-2019, 01:06 PM   #422
thoma
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Default Re: LCD TV and Monitor basic troubleshooting guides

Vestel 17IPS20 R9 Powersupply
Attached Files
File Type: pdf 17IPS20_R9_Power_Board_Presentation.pdf (2.59 MB, 33 views)
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Old 08-09-2019, 01:09 PM   #423
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Default Re: LCD TV and Monitor basic troubleshooting guides

Schematic vestel17ips20r9
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File Type: pdf 17IPS20_R9.pdf (259.4 KB, 23 views)
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Old 08-20-2019, 02:24 PM   #424
amazigh
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Default Re: LCD TV and Monitor basic troubleshooting guides

good afternoon everyone
I come to this wonderful forum to ask for help on a vestel power supply, which has the following flaws
the source is from reference 17pw06-2, and is used on a led tv brand led26mpeg4; it was totally dead, after restoring it, it did not work properly again; since the unloaded separate source has all the main voltages; 12v and 5v and 24v; after turning the 12v down to 7.5v and the 24v goes down to 0v, and this personal if any has passed this situation helps please
any help welcome
thanks in advance
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Old 08-30-2019, 01:09 PM   #425
thoma
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Default Re: LCD TV and Monitor basic troubleshooting guides

http://www.lcdrepairguide.com/tcon-panel/
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Old 09-08-2019, 07:16 PM   #426
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Default Re: LCD TV and Monitor basic troubleshooting guides

Backlights PWM.
https://www.tftcentral.co.uk/article...modulation.htm
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Old 09-18-2019, 01:24 PM   #427
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Default Re: LCD TV and Monitor basic troubleshooting guides

T-CON Voltages:
http://tvrepairsolution.blogspot.com...lcd-panel.html
http://tvrepairsolution.blogspot.com...l-rowgate.html
https://lapputerservice.com/2019/04/...d-there-point/
https://elinux.org/images/4/48/TFT-white-paper.pdf

Last edited by budm; 09-18-2019 at 01:37 PM..
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Old 09-20-2019, 06:26 PM   #428
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Default Re: LCD TV and Monitor basic troubleshooting guides

Understanding NTC rating.
Attached Files
File Type: pdf NTC 920-325D-LR-245176.pdf (128.2 KB, 8 views)
File Type: pdf NTC(5).pdf (325.4 KB, 7 views)
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Old 10-15-2019, 04:01 AM   #429
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Default Re: LCD TV and Monitor basic troubleshooting guides

Thank you very much for this post
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Old 11-12-2019, 05:59 PM   #430
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Default Re: LCD TV and Monitor basic troubleshooting guides

LED failure mode.
Attached Files
File Type: pdf LED-Failures-Modes_and_Mechanisms.pdf (569.3 KB, 8 views)
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