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Search: Posts Made By: budm
Forum: Troubleshooting TVs and Video Sources Yesterday, 03:11 PM
Replies: 286
Views: 85,242
Posted By budm
Re: Samsung LE32R88BD/ BN44-00155A

It is power supply due to the fact that 0.22 Ohms resistor is bad as you have tested it.
Forum: Troubleshooting TVs and Video Sources Yesterday, 01:14 PM
Replies: 4
Views: 89
Posted By budm
Re: LG TV 42LE5500 Power on,backlight ok but picture is bad

The LCD panel has integrated T-CON board, so you need to get to the T-CON and start checking for shorted caps, which is the most common failure.
Forum: Troubleshooting TVs and Video Sources Yesterday, 12:20 PM
Replies: 286
Views: 85,242
Posted By budm
Re: Samsung LE32R88BD/ BN44-00155A

"Tested RM801 on original PSU, but get different readings at different times. After several seconds, sometimes I get a 1. reading at all settings, other times, at highest 20M setting only, reading...
Forum: General Capacitor Questions & Issues Yesterday, 10:02 AM
Replies: 20
Views: 213
Posted By budm
Re: Question about SMD Crystal and proper capacitor placement / pin connections

Do you have DRC turned on while you are laying out the traces to let you know if the trace are correctly terminated, correct clearance as set in the design rules, etc?
Also do the research on SMD...
Forum: Troubleshooting TVs and Video Sources Yesterday, 09:46 AM
Replies: 45
Views: 2,405
Posted By budm
Re: TCL - L50E3020FS not turning on

Looking for the result of each LED string readings.
Forum: Troubleshooting TVs and Video Sources Yesterday, 09:45 AM
Replies: 3
Views: 58
Posted By budm
Re: Samsung Un65fh6001 Center Band

I would inspect the section of the tab bonding board where the LCD panel is connected to the tab bonding board.
Does this panel have tab bonding board on the bottom edge of the panel?
What is the...
Forum: Troubleshooting TVs and Video Sources Yesterday, 09:41 AM
Replies: 286
Views: 85,242
Posted By budm
Re: Samsung LE32R88BD/ BN44-00155A

https://www.badcaps.net/forum/attachment.php?attachmentid=197541&d=1563451977
That resistor is blown, that bad glue is also not removed and you can see corrosion on the left leg of the resistor due...
Forum: General Electronics Technical Discussion Yesterday, 09:33 AM
Replies: 47
Views: 672
Posted By budm
Re: Running a microcontroller in car - power supply aspects

Why would Low (Grounded) signal be problem? The MCU signals are ref. to GND. Am I missing something?
Forum: Troubleshooting TVs and Video Sources Yesterday, 12:19 AM
Replies: 2
Views: 94
Posted By budm
Re: Samsung UN65H8000AFXZA Backlight No Image

So either one of the cable between the LCD panel and the T-CON connected you will get each half of the screen to work?
Forum: Troubleshooting TVs and Video Sources 07-17-2019, 04:28 PM
Replies: 286
Views: 85,242
Posted By budm
Re: Samsung LE32R88BD/ BN44-00155A

That is the 0.22 Ohms resistor so your meter should show 0.22 Ohms + your meter probes wires resistance. So touch your two meter probes together to see what you get then test that resistor, the meter...
Forum: Troubleshooting Audio Equipment 07-17-2019, 01:23 PM
Replies: 5
Views: 85
Posted By budm
Re: Receiver Onkyo HT-R570 no sound .

Do you hear speaker protection relays click on a few seconds later after turning on the receiver?
Do you get audio at the RCA Tape out jacks on the rear panel of the receiver?
Forum: Troubleshooting TVs and Video Sources 07-17-2019, 01:13 PM
Replies: 1
Views: 33
Posted By budm
Re: Seiki SE39UY04 high pitch sound.

It is best to replace the caps as a set since bad cap can have high ESR and may not show any bad visually and capacitance may also show as normal.
Forum: Troubleshooting TVs and Video Sources 07-17-2019, 12:19 PM
Replies: 286
Views: 85,242
Posted By budm
Re: Samsung LE32R88BD/ BN44-00155A

Right now you have power supply problem, the switched 12v & 24v are not present even though the PS-ON is present.
1) Did you verify that the fusible resistor RM801 is OK?
2) Did you verify that the...
Forum: General Electronics Technical Discussion 07-17-2019, 09:59 AM
Replies: 47
Views: 672
Posted By budm
Re: Running a microcontroller in car - power supply aspects

I see, trying to keep wiring as original.
Forum: General Electronics Technical Discussion 07-17-2019, 09:42 AM
Replies: 47
Views: 672
Posted By budm
Re: Running a microcontroller in car - power supply aspects

I am curious as to why the OPTO LED's side are not running of the regulator in your circuit. It looks like you are using OPTO as level shifter.
Forum: Troubleshooting TVs and Video Sources 07-17-2019, 12:32 AM
Replies: 5
Views: 88
Posted By budm
Forum: Troubleshooting TVs and Video Sources 07-16-2019, 01:23 PM
Replies: 4
Views: 89
Posted By budm
Re: LG TV 42LE5500 Power on,backlight ok but picture is bad

Does this TV have stand alone T-CON board or integrated T-CON as part of the LCD panel?
If it is stand alone, what do you see on the screen if you have one ribbon cable between LCD panel and the...
Forum: Troubleshooting TVs and Video Sources 07-16-2019, 09:37 AM
Replies: 5
Views: 88
Posted By budm
Re: Toshiba 37RV530U - No standby LED, no reaction to power button being pressed

1) We need to see the pictures of the whole backside of the TV showing all the boards.
2) We need good clear straight shot for the whole top and bottom side of the power supply board.
3) We need...
Forum: Troubleshooting Audio Equipment 07-13-2019, 08:44 PM
Replies: 18
Views: 5,863
Posted By budm
Re: Replacements for ceramic "cement" resistors on crossover?

What ever style you change them to, they have to be non-inductive type resistors.
Forum: Troubleshooting TVs and Video Sources 07-13-2019, 08:39 PM
Replies: 6
Views: 141
Posted By budm
Re: VIZIO M551D-A2 completely dead

Thanks for the follow-up.
Forum: Troubleshooting TVs and Video Sources 07-13-2019, 12:36 PM
Replies: 3
Views: 107
Posted By budm
Re: Panasonic LCD TV TH-L32C4K (power board problem?)

Try turning down the backlights (not brightness) level to as low as possible to see if it will stay on longer.
Forum: Troubleshooting TVs and Video Sources 07-12-2019, 10:31 PM
Replies: 7
Views: 135
Posted By budm
Re: Sharp led strips

Need to provide the LCD panel model number also.
Forum: Troubleshooting TVs and Video Sources 07-12-2019, 05:33 PM
Replies: 34
Views: 427
Posted By budm
Re: Main board Magnavox 32ME402V/F7

There are many free online electronics learning sites:
https://www.learnelectronicsonline.com/
http://www.learnabout-electronics.org/
Forum: Troubleshooting Audio Equipment 07-12-2019, 12:48 PM
Replies: 4
Views: 114
Posted By budm
Re: harman kardon onyx studio power problem

Please upload good clear pictures so we can see what we are dealing with.
What are the original battery?
When did this issue occur?
Was it working OK with battery before?
Forum: Troubleshooting TVs and Video Sources 07-12-2019, 10:01 AM
Replies: 4
Views: 85
Posted By budm
Re: UN55fh6200 Rebooting when warm

I would also remove the LED connectors, power supply to main board connectors and inspect them to see if any one of them has the sign of over heating, also try tapping on the boards, check board...
Showing results 1 to 25 of 500

 
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