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Search: Posts Made By: Xristakis795
Forum: Troubleshooting Audio Equipment 07-17-2022, 11:06 AM
Replies: 2
Views: 207
Posted By Xristakis795
Re: samsung ht-x250

thanks for the answer
i have already find the service manual
just i ask maybe somebody has the same problem wih mine with this device
and give me a help
Forum: Troubleshooting Audio Equipment 07-16-2022, 02:10 PM
Replies: 2
Views: 207
Posted By Xristakis795
samsung ht-x250

hi to all
i have the above system and it doesnt open even standby
i have measure on cn3 of power supply on pin 4 and 6 5.6 volt
but until there i have not measure any other voltage
i suspect...
Forum: Troubleshooting TVs and Video Sources 06-20-2022, 03:52 AM
Replies: 9
Views: 275
Posted By Xristakis795
Re: samsung le37c630k1w standby lights but no power on

thanks
i have seen this video
its very good
Forum: Troubleshooting TVs and Video Sources 06-20-2022, 03:37 AM
Replies: 9
Views: 275
Posted By Xristakis795
Re: samsung le37c630k1w standby lights but no power on

for what particular ic do you mean sir ?
and the voltages when the plug of power supply connected to the mainboard
which variable from 0 - 12volt its not mean something like short on the main ?
Forum: Troubleshooting TVs and Video Sources 06-20-2022, 12:05 AM
Replies: 9
Views: 275
Posted By Xristakis795
Re: samsung le37c630k1w standby lights but no power on

yes sir i did this the same result
you mean the regulators of the mainboard right ?
i will measure and i will write about
as about as the voltage of power supply instead 5 volt i have only 4...
Forum: Troubleshooting TVs and Video Sources 06-19-2022, 03:14 PM
Replies: 9
Views: 275
Posted By Xristakis795
Re: samsung le37c630k1w standby lights but no power on

from your exprerience something is short on the minboard and causes this problem or the better is to find used mainboard from ebay ?
and on the pins which must have 5 volt and measure 4 volt you...
Forum: Troubleshooting TVs and Video Sources 06-19-2022, 02:32 PM
Replies: 9
Views: 275
Posted By Xristakis795
samsung le37c630k1w standby lights but no power on

hi to all
at first the problem of tv is has light on standby but if i press or fron the remote control or fron the power button to be on it retains on standby
on the above tv i have download the...
Forum: Troubleshooting TVs and Video Sources 06-18-2022, 02:41 PM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

sorry i want to correct something
the problem finally is the tv at the start is standby
when press the power on blinking the green led 7 times after is steady the green led for 10 seconds...
Forum: Troubleshooting TVs and Video Sources 06-05-2022, 12:40 PM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

sir dskall
i found the the schematic of power supply in electrotanya and i have confuse and i wanted from your experience little more help
i thinking to use 2 lamps ccfl T5 for the simulation...
Forum: Troubleshooting TVs and Video Sources 05-30-2022, 10:01 AM
Replies: 17
Views: 646
Posted By Xristakis795
Forum: Troubleshooting TVs and Video Sources 05-29-2022, 01:50 PM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

and what type led must i use ? i mean characterestic volts ?
the tv isn led is lcd with ccfl lamps
Forum: Troubleshooting TVs and Video Sources 05-29-2022, 01:33 PM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

hi again in my case the responsible inverter ic is oz9965gn
i read ho can i do bypass but i cant understand because there isn t schematic

(OZ9925GN Protection Remove

We solder the LED on the...
Forum: Troubleshooting TVs and Video Sources 05-27-2022, 03:23 AM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

thanks one more time for your quick answer
in my case the problem is green led blinking 7 times stabilizing for 10 seconds
almost in this duration i can see picture without backlight with the help...
Forum: Troubleshooting TVs and Video Sources 05-26-2022, 02:54 PM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

can i do bypass on the ic backlight so to pass the fault with backlight so i can convert it to led ?
Forum: Troubleshooting TVs and Video Sources 05-24-2022, 02:25 AM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

i understood
close circuit with ground of chassis
so you tell me to test only one ccfl with one edge to the plug and the other to chassis of tv
or can i use two ccfl with common edge the chassis...
Forum: Troubleshooting TVs and Video Sources 05-23-2022, 02:44 PM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

sir
just to be sure
i can test it with one lamp ccfl right ?
Forum: Troubleshooting TVs and Video Sources 05-23-2022, 01:00 AM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

thanks for the answer sir
and i believe maby its backlight problem
in my case if you notice from the foto i have two plugs go to the ccfl lights
, but each plug has one wire
how can i connect...
Forum: Troubleshooting TVs and Video Sources 05-22-2022, 02:16 PM
Replies: 17
Views: 646
Posted By Xristakis795
Re: lg 42lc55 7 times blinking and after goes out

ok sir
i have take some pictures
Forum: Troubleshooting TVs and Video Sources 05-22-2022, 12:45 PM
Replies: 17
Views: 646
Posted By Xristakis795
lg 42lc55 7 times blinking and after goes out

hi to all
i have the above model lcd tv
the problem is like the title blinking the green led 7 times after is steady green for 30 seconds i can see picture without backlight used a lens and after...
Forum: General Electronics Technical Discussion 05-12-2022, 10:11 AM
Replies: 3
Views: 343
Posted By Xristakis795
Re: question for equivalent igbt

thanks a lot sir Sam just i want to buy from
https://www.tme.eu/en/details/fgd3245g2-f085/smd-igbt-transistors/onsemi/
in yours address the case is to252
in mine is Dpac
will i have problem in...
Forum: General Electronics Technical Discussion 05-11-2022, 12:33 PM
Replies: 3
Views: 343
Posted By Xristakis795
question for equivalent igbt

hi to all
i have igbt fgd3245g2-085 can anyone to suggest me an equivalent ?because its difficult to find it and take it soon
thanks in advance
Forum: General Electronics Technical Discussion 03-03-2022, 01:32 PM
Replies: 3
Views: 432
Posted By Xristakis795
Re: series resistors

very nice
something more sir i wanted to ask
if i use instead a resistor 2 watt 39 ohm which is burnt from a cockroach 39 ohm resistor 3 watt in a pcb circuit for kitchen is dangerous in your...
Forum: General Electronics Technical Discussion 03-03-2022, 12:55 PM
Replies: 3
Views: 432
Posted By Xristakis795
series resistors

hi to all
if i have a resistor 39ohm 3watt
and i replace it with 4 resistors 10 ohm 3 watt
the total resistance and watt is the same with the first ?
or the watt is bigger ?
Forum: Troubleshooting TVs and Video Sources 02-18-2022, 08:17 AM
Replies: 12
Views: 433
Posted By Xristakis795
Re: question for spacer turbox tv

I decided to get M3 metallic screws with thread and washers to be held in the sheet metal of tv
the only problem is that I do not remember the exact length and in addition because they are black and...
Forum: Troubleshooting TVs and Video Sources 02-17-2022, 03:43 PM
Replies: 12
Views: 433
Posted By Xristakis795
Re: question for spacer turbox tv

thank you so much for the reply
so now because i put them with different height I have half the picture dark and half light I hope the panel has not been damaged
I think because I have thrown the...
Showing results 1 to 25 of 114

 
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