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Search: Posts Made By: Andrew F. Ali
Forum: Troubleshooting Computer Displays Yesterday, 09:43 AM
Replies: 10
Views: 119
Posted By Andrew F. Ali
Re: CRT TV LG RT-29FB75VE noise faint on screen

There is a capacitor or GND connection loose.
Forum: Troubleshooting TVs and Video Sources 07-07-2019, 01:31 PM
Replies: 5
Views: 136
Posted By Andrew F. Ali
Re: LG 32LE5500 bad video

There a voltages test points on the T-CON Bd. to measure. However, you could disconnect one of the Ribbon cables connecting the T-CON Bd. to the Long Panel Bds. on the Screen. Do left side then right...
Forum: Troubleshooting TVs and Video Sources 07-07-2019, 01:25 PM
Replies: 12
Views: 213
Posted By Andrew F. Ali
Re: LG 42" Plasma Model 42PG20R-AFB (No picture)

Clear focused close-up shots.
Forum: Troubleshooting TVs and Video Sources 07-07-2019, 01:23 PM
Replies: 12
Views: 210
Posted By Andrew F. Ali
Re: samsung un55f6300af no power

What did you do to fix the problem? Replace or resoldered loose connection?
Forum: Troubleshooting TVs and Video Sources 07-07-2019, 01:19 PM
Replies: 3
Views: 98
Posted By Andrew F. Ali
Re: insignia ns-50d550na15

That should work.
Forum: Troubleshooting TVs and Video Sources 07-07-2019, 01:18 PM
Replies: 29
Views: 444
Posted By Andrew F. Ali
Re: LG 55LS4500 No Standby light will not power on

This sounds like a bad backlight issue. He doesn't seem to understand what budm is saying and asking. If you jumped the Std-by 3.5V to the PWR-ON and getting the 12V and 24V. He should leave that...
Forum: Troubleshooting TVs and Video Sources 07-07-2019, 01:08 PM
Replies: 19
Views: 252
Posted By Andrew F. Ali
Re: Panasonic tx55cr730b no picture

Do you have all the signals/voltages required by the PSU from the Main Bd.? You seem to have the signal/voltage required by the Main Bd. from the PSU.
Forum: Troubleshooting Power Supplies and Power Supply Design 07-07-2019, 01:05 PM
Replies: 11
Views: 184
Posted By Andrew F. Ali
Re: Smart Charger 29 volts @ 1 amp how do I change it 25 volts

Use a step down buck converter. That is the safest thing.
Forum: Troubleshooting Computer Displays 07-07-2019, 01:03 PM
Replies: 2
Views: 48
Posted By Andrew F. Ali
Re: Asus VH235T-P 2 seconds to black

Did you do a full capacitor change out and replaced with hi-quality caps? or the re is aloose connection or cold solder joint. Look especially at the LED Driver and LED backlight wiring.
Forum: Troubleshooting TVs and Video Sources 07-06-2019, 09:19 AM
Replies: 5
Views: 136
Posted By Andrew F. Ali
Re: LG 32LE5500 bad video

Looks like a bad T-CON Bd. to me.
Forum: Troubleshooting TVs and Video Sources 07-05-2019, 09:35 AM
Replies: 22
Views: 237
Posted By Andrew F. Ali
Forum: Troubleshooting TVs and Video Sources 06-19-2019, 11:49 AM
Replies: 4
Views: 141
Posted By Andrew F. Ali
Re: TV Main Board cross over

Yes you can do a swap. I discovered this by accident when I couldn't find the exact Main Bd. and in desperation fitted a similar Main Bd I had and to my surprise it worked. The Replacement Bd had...
Forum: Troubleshooting TVs and Video Sources 06-13-2019, 08:51 PM
Replies: 2
Views: 152
Posted By Andrew F. Ali
Re: Soldering advice.

Either use a higher wattage soldering iron or hold the coil end with a long nose pliers on the component side of the board and solder normal way. I have along nosed vice grip pliers that I use.
Forum: Troubleshooting TVs and Video Sources 06-13-2019, 08:45 PM
Replies: 4
Views: 182
Posted By Andrew F. Ali
Re: LG 60PA6500 (Plasma) no picture, with sound

First of all, PLASMA TVs do not have a T-CON Bd. I think you mean is the LOGIC Bd. Check if you have 5V from the Y-SUS Bd. going to the Logic Bd.
Forum: Troubleshooting TVs and Video Sources 06-13-2019, 08:41 PM
Replies: 11
Views: 264
Posted By Andrew F. Ali
Forum: Troubleshooting TVs and Video Sources 06-10-2019, 10:13 AM
Replies: 2
Views: 90
Posted By Andrew F. Ali
Forum: Troubleshooting TVs and Video Sources 05-31-2019, 09:00 PM
Replies: 30
Views: 500
Posted By Andrew F. Ali
Forum: General Electronics Technical Discussion 05-22-2019, 06:53 AM
Replies: 14
Views: 306
Posted By Andrew F. Ali
Re: Increasing input voltage of DC-AC inverter - possible ?

Could you use more batteries and regulate the batteries voltage to the desired input voltage??
Forum: Troubleshooting TVs and Video Sources 05-22-2019, 06:49 AM
Replies: 12
Views: 209
Posted By Andrew F. Ali
Re: Lg 32ln570b

You should replace the 3 existing LED strips with new strips. Problem solved.
Forum: Troubleshooting TVs and Video Sources 05-16-2019, 03:46 PM
Replies: 17
Views: 379
Posted By Andrew F. Ali
Re: Condensate burst on board BN-00506A

I meant I will follow RJ's advice.
Forum: Troubleshooting TVs and Video Sources 05-16-2019, 09:08 AM
Replies: 17
Views: 379
Posted By Andrew F. Ali
Re: Condensate burst on board BN-00506A

I would RJ but will also change all the following parts: IC801, DM803, CM808, RM803 and DM801.
Forum: Troubleshooting TVs and Video Sources 05-16-2019, 08:49 AM
Replies: 5
Views: 128
Posted By Andrew F. Ali
Re: Samsung

Basic PLASMA troubleshooting would suggest a defective Logic Bd. Verify for me the Y-Main Bd. is supplying the Logic Bd. with 16Vdc which is usually derive from the M5V source.
Forum: Troubleshooting TVs and Video Sources 05-16-2019, 08:42 AM
Replies: 8
Views: 1,565
Posted By Andrew F. Ali
Re: Sony KDL-65W850A 5 blinks error

With all boards connected set your meter to 750V DC then attach the black meter probe to the chassis and the red probe to the L+ pin of the connector going to the Backlights. Plug-in the TV and...
Forum: General Capacitor Questions & Issues 05-10-2019, 01:05 PM
Replies: 10
Views: 291
Posted By Andrew F. Ali
Re: Car amp, headunit and crossovers

My guess is. If everything is working fine why go looking for trouble. I'll do any/all corrective maintenance when a problem arise.
Forum: Troubleshooting Audio Equipment 05-10-2019, 12:56 PM
Replies: 4
Views: 138
Posted By Andrew F. Ali
Re: Peavey 600E amp/mixer

Replace the Main Filter Capacitors. They may be 330uF 450V or thereabouts.
Showing results 1 to 25 of 500

 
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