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Search: Posts Made By: budm
Forum: Troubleshooting TVs and Video Sources Yesterday, 11:53 PM
Replies: 60
Views: 339
Posted By budm
Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

When you indicated the component is shorted, what is the RESISTANCE reading in both direction?
What was the resistance of the that shorted 15V Zener that you first found in the beginning.
Forum: Troubleshooting TVs and Video Sources Yesterday, 09:53 PM
Replies: 20
Views: 1,041
Posted By budm
Re: Lg 55ga6400 trying to power on but turn off completely

Right now the main is not sending the required signals (BL-ON and Dim) for the backlights to come on.
Forum: Troubleshooting TVs and Video Sources Yesterday, 06:24 PM
Replies: 5
Views: 118
Posted By budm
Re: my SHARP LC-40LE810UN has issue help needed to find and fix.

I do not see 1 long 3 short error code in the service manual. Are you sure what you are seeing?
Forum: Troubleshooting TVs and Video Sources Yesterday, 05:20 PM
Replies: 5
Views: 67
Posted By budm
Re: Lg 42lb5600-uh

The 102V is the feeding Voltage to the boost converter circuit that boosts up the Voltage to 208V (with load), the load is not in place then the Voltage will go up till it reaches the OVP (Over...
Forum: Troubleshooting TVs and Video Sources Yesterday, 03:48 PM
Replies: 20
Views: 1,041
Posted By budm
Re: Lg 55ga6400 trying to power on but turn off completely

1) It is best to start a new thread since yiur TV is not the same model as the OP.
2) Make sure to provide good clear pictures of the whole backside of the TV showing all the boards.
3) P-DIM=17mV...
Forum: Troubleshooting TVs and Video Sources Yesterday, 03:39 PM
Replies: 46
Views: 647
Posted By budm
Re: Sony KDL-37XBR6 Black Screen :(

Check the fuse first, it will be really small fuse.
Forum: Troubleshooting TVs and Video Sources Yesterday, 03:21 PM
Replies: 2
Views: 51
Posted By budm
Re: Sharp Aquaos LC52X20E Blinking Code

Service manuals: https://elektrotanya.com/showresult?what=Sharp%20LC52X20E&kategoria=&kat2=all
I do not have the time to download them yet.
You can download them and study them in the mean time.
Forum: Troubleshooting TVs and Video Sources Yesterday, 03:17 PM
Replies: 1
Views: 33
Posted By budm
Re: Telefunken 32" LCD TV Model TLCD-32HDA

1) When you first turn on the TV, do see the backlights even flash on for seconds?
2) Do you have about 380 ~ 400VDC when measure right between the two legs of the main filter cap?
3) Do you have...
Forum: Troubleshooting TVs and Video Sources Yesterday, 03:09 PM
Replies: 60
Views: 339
Posted By budm
Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

See my post #53, you need to locate and test bunch of Voltage test points per some example that I can see from the pictures, there are many more on that T-CON board.
Forum: Troubleshooting TVs and Video Sources Yesterday, 03:10 AM
Replies: 46
Views: 647
Posted By budm
Re: Sony KDL-37XBR6 Black Screen :(

Don't you see the part designators as shown in the diagram?
There is fuse F1422, MOSFET Q1423 in the diagram that I even put red circle on them, I spend lots of time looking through many pages to...
Forum: General Electronics Technical Discussion Yesterday, 01:25 AM
Replies: 8
Views: 107
Posted By budm
Re: how to automate relay testing

First, understanding the test method.
http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=13C9138_Verification_Diagnosis_AppNote&DocType=CS&DocLang=EN
Forum: Troubleshooting TVs and Video Sources Yesterday, 12:37 AM
Replies: 23
Views: 393
Posted By budm
Re: Samsung UN60EH6050FXZA no picture or sound Only a blue screen

Example of integrated T-CON and fuse:
https://www.badcaps.net/forum/showthread.php?p=843246#post843246
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 11:55 PM
Replies: 60
Views: 339
Posted By budm
Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

If you look at the T-CON board both sides you will see many Voltage test points, I.E ...
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 11:37 PM
Replies: 60
Views: 339
Posted By budm
Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Those two parts have white body, correct? They are capacitors not resistor.
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 11:32 PM
Replies: 60
Views: 339
Posted By budm
Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

BTW: https://www.badcaps.net/forum/showpost.php?p=845149&postcount=7
You never give me the result of this request.
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 11:27 PM
Replies: 60
Views: 339
Posted By budm
Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

BTW, can I see good clear straight shot pictures of the T-CON board?
I still think you have problem with T-CON board after searching about 14-blank code.
I.E....
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 11:00 PM
Replies: 60
Views: 339
Posted By budm
Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Never jump the control pin directly to the Voltage source, especially with 12V, you can damage the receiving circuit, and if you accidentally jump to the wrong pin it will even worst which you can...
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 10:49 PM
Replies: 60
Views: 339
Posted By budm
Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

All you have to do is to measure the Voltage between the two legs of that diode you put in, that Zener is for protection, the circuit will function without it, you do not need to have that zener in...
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 07:58 PM
Replies: 12
Views: 179
Posted By budm
Re: LG tv flickering

Not surprised.
If you are going to be working with a lot of newer TV with LED backlights you should invest in LED backlights tester.
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 07:56 PM
Replies: 5
Views: 67
Posted By budm
Re: Lg 42lb5600-uh

Open circuit some where in the LED string.
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 07:49 PM
Replies: 23
Views: 393
Posted By budm
Re: Samsung UN60EH6050FXZA no picture or sound Only a blue screen

https://www.badcaps.net/forum/attachment.php?attachmentid=180890&d=1533239308
IC9101
OP is confused, that is picture of the main board, there is no T-CON board to replace, I am beginning to doubt...
Forum: Troubleshooting Power Supplies and Power Supply Design 08-17-2018, 06:37 PM
Replies: 13
Views: 117
Posted By budm
Re: Need help with LED Power Supply Design

Yep, all of that just to light up LEDs.
Forum: Troubleshooting Power Supplies and Power Supply Design 08-17-2018, 05:58 PM
Replies: 13
Views: 117
Posted By budm
Re: Need help with LED Power Supply Design

OP said the 10 LEDs are connected in parallel. I have a feeling they are not in parallel.
Forum: Troubleshooting Power Supplies and Power Supply Design 08-17-2018, 04:25 PM
Replies: 13
Views: 117
Posted By budm
Re: Need help with LED Power Supply Design

Can we info about that LED assembly? Are all 10 LEDs directly connected to each other in parallel without any balancing resistor for each LED?
Connecting LEDs directly in parallel is not good idea...
Forum: Troubleshooting TVs and Video Sources 08-17-2018, 02:41 PM
Replies: 46
Views: 647
Posted By budm
Re: Sony KDL-37XBR6 Black Screen :(

You have to look at the schematic diagram of the main board to locate that MOSFET first.
Showing results 1 to 25 of 500

 
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