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Search: Posts Made By: vinceroger69
Forum: Troubleshooting TVs and Video Sources Yesterday, 02:41 PM
Replies: 30
Views: 201
Posted By vinceroger69
Re: 42LK450-UB Noob question

what you will need to do is test the windings on each of those transformers is there a part number on them? can you take a clear photo of one of them
Forum: General Capacitor Questions & Issues Yesterday, 02:13 PM
Replies: 21
Views: 210
Posted By vinceroger69
Re: Replacement capacitor

can you take a picture of what your seeing on the screen when you first turn the set on
Forum: Troubleshooting TVs and Video Sources Yesterday, 02:10 PM
Replies: 30
Views: 201
Posted By vinceroger69
Re: 42LK450-UB Noob question

can you upload a picture of that board so we can see whats fitted as you may be able too run some tests on it
Forum: General Capacitor Questions & Issues Yesterday, 02:01 PM
Replies: 21
Views: 210
Posted By vinceroger69
Re: Replacement capacitor

https://www.promelec.ru/pdf/TDA8359J.pdf
whats the part number of the other ic then we can look at a data sheet
Forum: Troubleshooting TVs and Video Sources Yesterday, 01:51 PM
Replies: 30
Views: 201
Posted By vinceroger69
Re: 42LK450-UB Noob question

on your second picture where does that bottom wire connector go too?
Forum: Troubleshooting TVs and Video Sources Yesterday, 12:46 PM
Replies: 3
Views: 44
Posted By vinceroger69
Re: LG 32LB1R - dont turn on

connection or solder connection on the pin your testing? maybe also worth checking the esr/uf rating on the capacitors on the power supply
a quick read of this thread does suggest it might be a...
Forum: General Capacitor Questions & Issues Yesterday, 12:33 PM
Replies: 21
Views: 210
Posted By vinceroger69
Re: Replacement capacitor

https://www.ebay.co.uk/itm/TDA8359J-Transistor-b12/202190724308?hash=item2f13819cd4:g:aFsAAOSwMl9aXhue

for capacitors you can open a account with rs components they are very cheap and have free...
Forum: General Electronics Technical Discussion Yesterday, 12:18 PM
Replies: 11
Views: 96
Posted By vinceroger69
Re: Wiring up a variac.

The main thing is you have it figured it out now and can use it
Forum: Troubleshooting TVs and Video Sources Yesterday, 12:04 PM
Replies: 30
Views: 201
Posted By vinceroger69
Re: 42LK450-UB Noob question

as this is a older ccfl set i guess it could be a failed ccfl or invertor transformer
Forum: General Electronics Technical Discussion Yesterday, 11:05 AM
Replies: 11
Views: 96
Posted By vinceroger69
Re: Wiring up a variac.

this ebay advert shows one with wiring connected i don't know if its any help...
Forum: Troubleshooting TVs and Video Sources Yesterday, 07:23 AM
Replies: 3
Views: 44
Posted By vinceroger69
Re: LG 32LB1R - dont turn on

What power supply number is used in your tv this maybe be the correct Service manual171712
Forum: Troubleshooting TVs and Video Sources 02-15-2018, 12:20 PM
Replies: 3
Views: 62
Posted By vinceroger69
Re: TV Blaupunkt 32/147I-GB stuck in standby

have you managed too find the firmware that matches your tv and the lcd panel that's used in your set also what mainboard number is used in your tv.
Forum: General Capacitor Questions & Issues 02-14-2018, 02:33 PM
Replies: 21
Views: 210
Posted By vinceroger69
Re: Replacement capacitor

whats the ic part number? capacitors can look good but still be failed with low uf ratings or high esr as a test you can heat the area up with a hair dryer for a couple of minutes does the set then...
Forum: General Capacitor Questions & Issues 02-14-2018, 11:30 AM
Replies: 21
Views: 210
Posted By vinceroger69
Re: Replacement capacitor

maybe one of these testers they test the esr etc of the capacitors too ...
Forum: Troubleshooting TVs and Video Sources 02-14-2018, 10:19 AM
Replies: 21
Views: 353
Posted By vinceroger69
Re: Samsung UE32EH5000 backlight issue fix

just check the vizio leds are the same voltage as some tv sets use 3v or 6v leds
Forum: Troubleshooting TVs and Video Sources 02-14-2018, 10:16 AM
Replies: 15
Views: 214
Posted By vinceroger69
Re: VIANO LED40FHD backlight on/off

This method is also good for repairing leds
https://www.youtube.com/watch?v=RxwdC7V5Ue0
Forum: Troubleshooting TVs and Video Sources 02-14-2018, 06:35 AM
Replies: 7
Views: 110
Posted By vinceroger69
Re: Samsung LE40B652, Backlight is on only for few seconds after switching TV on.

https://www.badcaps.net/forum/showthread.php?t=19987&highlight=inverter+testing+cfl
https://www.badcaps.net/forum/showthread.php?t=37147&highlight=dynex+dx-40l261a12
Forum: Troubleshooting TVs and Video Sources 02-14-2018, 05:43 AM
Replies: 12
Views: 127
Posted By vinceroger69
Re: Vizio E601i-A3 Blown fuse on powerboard

i would remove the mosfet and re test it out of circuit
Forum: Troubleshooting TVs and Video Sources 02-12-2018, 02:13 PM
Replies: 5
Views: 76
Posted By vinceroger69
Re: Toshiba 40HL933G - LED Back Light voltages - should all chains be the same?

lcd panel specs link
http://www.panelook.com/LTA400HM22_Samsung_40_LCM_overview_15903.html
Forum: Troubleshooting TVs and Video Sources 02-11-2018, 03:27 AM
Replies: 35
Views: 533
Posted By vinceroger69
Re: Sony KDL-50w829b

This is the same manual i have posted a few posts above, its a pity sony don't publish schematics like some other manufacturers do.
Forum: Troubleshooting TVs and Video Sources 02-09-2018, 06:31 AM
Replies: 35
Views: 533
Posted By vinceroger69
Re: Sony KDL-50w829b

your lcd tester should of ruled out a mainboard issue, so that narrows it down to the tcon or the actual panel at fault yes buying secondhand parts is hit or miss if they work or have the same issue...
Forum: Troubleshooting TVs and Video Sources 02-09-2018, 04:22 AM
Replies: 35
Views: 533
Posted By vinceroger69
Re: Sony KDL-50w829b

sorry ron i didn't open the pdf, i have just had a search online and cant find a service manual for this model.
Forum: Troubleshooting TVs and Video Sources 02-08-2018, 05:48 AM
Replies: 35
Views: 533
Posted By vinceroger69
Re: Sony KDL-50w829b

maybe be this manual may help ron?
Forum: Troubleshooting TVs and Video Sources 02-08-2018, 03:17 AM
Replies: 6
Views: 108
Posted By vinceroger69
Re: Need help with Panasonic TX-P42U30B - does not turn up

i copied from another thread not sure what your model number is so try at your own risk if want too
Now for future reference and addional information for others who have the solid Red Light fault,...
Forum: Troubleshooting TVs and Video Sources 02-07-2018, 01:09 PM
Replies: 23
Views: 261
Posted By vinceroger69
Re: help with schematic or with fixing this pcb

printed on the pcb where the part is fitted it will say something like Q185 if we have a schematic we can then follow its path etc or was it a mosfet etc you replaced with the pcb marked starting...
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