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Search: Posts Made By: budm
Forum: Troubleshooting TVs and Video Sources 02-15-2020, 05:24 PM
Replies: 6
Views: 133
Posted By budm
Re: How to test tiny black resisters on lcd panel board

We need to see what the image looks like on the screen, your description does not mean much.
We do not even know the make and model of the TV.
We also need the pictures of the whole backside of the...
Forum: Troubleshooting Power Supplies and Power Supply Design 02-15-2020, 03:07 PM
Replies: 21
Views: 344
Posted By budm
Re: Help with car battery charger HT7715

It is 12vdc relay coil (OKS2C-S15DC12V).
See attachment as to what I believe how the relay is driven.
I would expect the clicking to be continuous if the power supply is stuck in start/stop loop if...
Forum: Troubleshooting TVs and Video Sources 02-15-2020, 02:47 PM
Replies: 6
Views: 133
Posted By budm
Re: How to test tiny black resisters on lcd panel board

https://www.badcaps.net/forum/attachment.php?attachmentid=207218&d=1581720168'
What does it look like with some kind of images on the screen instead of the User OSD?
Forum: Troubleshooting TVs and Video Sources 02-15-2020, 02:42 PM
Replies: 2
Views: 46
Posted By budm
Re: Finlux 43utd297b-p won't turn on

Start by attaching some good clear pictures of the whole backside of the TV showing all the boards, also the area where the cat did the business.
Forum: Troubleshooting TVs and Video Sources 02-15-2020, 02:37 PM
Replies: 1
Views: 50
Posted By budm
Re: Toshiba K49QWDR flash on then off

Not much of the info to help troubleshoot the issue.'
Are you sue about the model 'Toshiba K49QWDR'?
How about attaching some good clear pictures of the what we are dealing with?
What Voltage...
Forum: Troubleshooting Power Supplies and Power Supply Design 02-15-2020, 02:28 PM
Replies: 21
Views: 344
Posted By budm
Re: Help with car battery charger HT7715

Well, the click may be from the black relay you have on that board, which means there is power from some where to power the relay.
Forum: General Capacitor Questions & Issues 02-15-2020, 02:19 PM
Replies: 5
Views: 224
Posted By budm
Re: Can i test MLCC caps with multimeter?

The cap may also be connected in parallel with caps, true test for capacitance will be testing off the board.
Forum: Troubleshooting Audio Equipment 02-14-2020, 03:55 PM
Replies: 4
Views: 93
Posted By budm
Re: Jvc TH-D258B No power on standby led

https://www.badcaps.net/forum/attachment.php?attachmentid=207150&d=1581605478
OK, that means the main board has the Voltage regulators, and buck converter to change the 16V to lower Voltage to run...
Forum: Troubleshooting Power Supplies and Power Supply Design 02-14-2020, 03:46 PM
Replies: 10
Views: 109
Posted By budm
Re: speaking of car battery chargers...

Even elecric cars have 12v lead acid batteries.
https://www.plugincars.com/why-do-electric-cars-have-lead-acid-12-volt-batteries-when-lithium-lighter-129118.html

Even TESLA uses lead acid...
Forum: Troubleshooting Power Supplies and Power Supply Design 02-14-2020, 03:36 PM
Replies: 21
Views: 344
Posted By budm
Re: Help with car battery charger HT7715

C24 in the hot side.
You should also check the small lytics caps in the cold side also.
Did you already check all the diode, rectifiers?
Forum: Troubleshooting TVs and Video Sources 02-13-2020, 10:12 PM
Replies: 51
Views: 354
Posted By budm
Re: Vizio M60-C3

http://www.mytvtestpatterns.com/
Or download jpg to your PC: https://www.smpte.org/lifewithoutsmpte/SMPTEColorBars
Or youtube.
Forum: Troubleshooting Audio Equipment 02-13-2020, 06:04 PM
Replies: 4
Views: 93
Posted By budm
Re: Jvc TH-D258B No power on standby led

So the how many Voltage outputs are there from the power supply board, just single 16V output?
Pictures of the power supply board?
Forum: Troubleshooting TVs and Video Sources 02-13-2020, 05:59 PM
Replies: 9
Views: 186
Posted By budm
Re: Lg 55UF850V lines and image displacement

https://www.badcaps.net/forum/attachment.php?attachmentid=207013&d=1581456233
So you no longer see double images (Non Programme) when the new main board is replaced?
Forum: Troubleshooting TVs and Video Sources 02-13-2020, 05:53 PM
Replies: 20
Views: 261
Posted By budm
Re: Samsung LED UN46H5203 No Backlights

You may be able to bypass one to two 3V LEDs, I would not do more than that. The problem is that some LEDs already went bad so you can expect more to go bad later also.
Forum: Troubleshooting TVs and Video Sources 02-13-2020, 05:48 PM
Replies: 1
Views: 62
Posted By budm
Re: Sony XBR-65X850E not powering on or showing picture on screen

[QUOTE=blake.s;942306]I have a Sony XBR-65X850E that seems to not want to do anything. It does not power on or show any picture. The power board checks out and works. Pictures are attached of the tv....
Forum: Troubleshooting TVs and Video Sources 02-12-2020, 04:52 PM
Replies: 20
Views: 261
Posted By budm
Re: Samsung LED UN46H5203 No Backlights

They are not all the same, you have to match the footprint and polarity, Voltage and current rating, etc.
It is better to replace the whole set of the LED strips.
Forum: Troubleshooting TVs and Video Sources 02-12-2020, 04:51 PM
Replies: 9
Views: 186
Posted By budm
Forum: Troubleshooting TVs and Video Sources 02-12-2020, 04:42 PM
Replies: 20
Views: 261
Posted By budm
Re: Samsung LED UN46H5203 No Backlights

You have open circuit on the LED string connected to pin 7 (Anode of #3 LED string) and 8 (Cathode of the #3 LED string which is the Cathide return of the series connected LED strings).
Forum: Troubleshooting TVs and Video Sources 02-11-2020, 05:47 PM
Replies: 12
Views: 160
Posted By budm
Re: Sony KDL-50R550A 5 Blink Error

https://www.badcaps.net/forum/attachment.php?attachmentid=206980&d=1581431272
1) Check the fuse on the T-CON board.
2) Check to see if you do have 12V at both ends of the fuse on the T-CON board...
Forum: Troubleshooting TVs and Video Sources 02-11-2020, 05:26 PM
Replies: 20
Views: 261
Posted By budm
Re: Samsung LED UN46H5203 No Backlights

The connector has pin label for each pin so you should put the name of each pin on the connectors that you report so we can easily see what each pin is for.
Also recheck the way you count the pin...
Forum: Troubleshooting TVs and Video Sources 02-10-2020, 10:21 PM
Replies: 12
Views: 160
Posted By budm
Re: Sony KDL-50R550A 5 Blink Error

We need to see the whole backside of the TV showing all the boards, that will be a starting point.
Forum: Equipment Usage, Soldering, Techniques, and Reviews 02-09-2020, 12:51 AM
Replies: 19
Views: 279
Posted By budm
Re: DC Power Supply QW-MS605D

Please upload good clear pictures so we can see what we are dealing with.
5R0 = 5 Ohms
Forum: Troubleshooting TVs and Video Sources 02-09-2020, 12:43 AM
Replies: 4
Views: 94
Posted By budm
Re: 50UH5500 No picture/sound

Pin 1 STB = PS-ON
Pin 11 ENA = BL-ON
Pin 12 ADJ = Backlights dimmings

So the main board is not sending the control signals to the power supply board.
Forum: Troubleshooting TVs and Video Sources 02-08-2020, 04:19 PM
Replies: 6
Views: 296
Posted By budm
Re: Samsung UN60F7100AF blue screen no image with sound

Please upload good clear pictures of the whole backside of the TV showing all the boards so we can see what we are dealing with.
Forum: Troubleshooting TVs and Video Sources 02-06-2020, 06:47 PM
Replies: 1
Views: 35
Posted By budm
Re: Toshiba, 46ul605u, no backlights

Please upload good clear pictures of the whole backside of the TV showing all the boards, also the straight shot pictures of the whole top and bottom side of the power supply board so we can see what...
Showing results 1 to 25 of 500

 
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