#Lgtv

LG TV 21"NORMAL PCB
MAIN IC TDA9370PS/N3/A/1923
EHT 6174V-6006E
VERTICAL IC LA7840
SOUND IC TDA7297
AUDIO PROCESSOR TDA9859
VIDEO IC TDA6107JF
STR F6654
STANDBY
1.Power on/Check EHT supply voltage---ok.
2.Check H DRIVER voltage-----ok.
3.Check +5V regulator voltage------ok.
4.Check+3.3V------ok.
5.Check +8V regulator voltage-----nil.
6.8V regulator I/P voltage ok but O/P voltage nil.
7.check standby released voltage 3.3 ok.
8.Power off/Check ohms at 8V regulator O/P pin--low.
9.Open main IC supply +8V jumper.
10.Check ohms at 8V O/P pin----low ohms.
11.Open audio PROCESSOR IC supply +8V jumper.
12.Again check ohms at regulator 8V O/P pin----high.
13.Join main IC 8V regulator supply jumper.
14.Power on/Check +8V ---low.
15.Power off/Open 8V regulator ic.
16.Set new 8V regulator (4pin).
17.Power on/Then-----

[@sukharanjandas8423]

আপনার স্টেপ বাই স্টেপ ট্রেসিং এবং ohm পরীক্ষা খুব খুব উত্তম কৌশল।একবার মাথায় লেখা হয়ে গেলে আর ভোলা যাবে না।
আপনার সুস্থ শরীরে দীর্ঘায়ু কামনা করি।

[@CosmicElectronics]

ট্রেসিং না করলে অজানা জিনিসকে জানব কি করে? তাই এই কাজটা করে যেতেই হবে।

[@roluahpuia9755]

I never miss your vedio.you are the best crt TV technician youtuber.your vedio is clear and solution is easy to understand and you describe briefly the problem.but i request you one thing.please explain in english or hindi

[@damindalakruwan4447]

Nice video. but if english subtitle put for the total dialog fantastic. And finnaly you are a good teacher. Heart from sri lanka.. ❤❤

[@CosmicElectronics]

Thank you very much Daminda

[@damindalakruwan4447]

@@CosmicElectronics Sir, what is the task of sw pin in KIA78R08PI. i have same problem. I remove jumper in main ic section and audio section. Both show low oms. I change the ic. But issue not solved. 😕😕

[@CosmicElectronics]

1.Supply input.
2.supply output 8V
3.Ground.
4.sw(power on)

[@damindalakruwan4447]

@@CosmicElectronics Can you give me some tips for repair this. Regulator ic output 0.4v 😕😕

[@deepakgupta8606]

You are best trainer

[@CosmicElectronics]

Many thanks

[@prasantadas5971]

Mindblowing video SIR

[@CosmicElectronics]

Thanks to Prasanta

[@mdaminulislam9945]

Very nice video dada

[@sharmatechnicalsupport9968]

Very use video sir great 👍👍👍

[@vijayakumarvk2428]

Good job sir!Good explain Sir thank you very much Sir

[@rajupendharkar4009]

very good fault chaching sir

[@ranjitborah6917]

Thanks sir👌👌💪💪🕉🕉🕉🕉

[@PREMELECTRONICS]

Good explain..👌👍
#premelectronics

[@al-aminislam6668]

Very very thank you

[@CosmicElectronics]

Ok.

[@bittukamar6735]

Very Knowledge full videos sir but it translate into hindi or English

[@mdnurul8663]

Very nice video sir.

[@CosmicElectronics]

Thanks

[@margono5059]

Sip. Joss👍👍👍

[@eletronicsled1544]

Nice video
Sir hindi main ..

[@debumandal7112]

Good video sir

[@michaelcallosa3598]

Nice work!

[@ATOZRepairing]

Bhai ek lg tv me satand by realise hone ke bad sara supply baitha de rha
Output ka supply open karne ke bad sabhi supply proper mil rha hai but output pe supply dene ke bad sabhi supply drop ho jata hai.
Output transister, Eht, 110v diode, pf, capister, Virtical ic sab change kar diya but koi fark nhi pada

[@maneshmallick9625]

Sir amar kache ekat LG crtv ache ..or 110v EST supply didod halka bp kore off hoijache ER.. problem ki hote pare..

[@milansarkar4307]

THANK YOU SIR

[@CosmicElectronics]

Ok.

[@abbasalkhakani5951]

Is there was a problem in ic sound when you cut it power line ? And R U returned soldering it after that?

[@lesserspeed9288]

Like

[@CosmicElectronics]

Thanks

[@susasena5438]

Sir pranam aap jaise samjha raha hai koy bhi aisa samjha nhi raha hai

[@zakirshaik925]

lg flatron 2005 model tv , i want woofer sw connection

[@pintupaul9822]

আমার একটি Samsung crt tvর
Est on হতে হতে এক সেকেন্ডের জন্য off
হয়ে যাচ্ছে আপনি যদি এরকম একটি ভিডিও বানান তবে খুব ভালো হয়

[@CosmicElectronics]

Thanls

[@kkcreators1170]

Sir is board Mai 8 volt regulater wala sw pr kitna volt ata hai

[@surajmandal1012]

Nice vedeo

[@appalarajuadhapaka811]

Super super sir

[@CosmicElectronics]

Ok.Thanks to you. Happy new year 2020.

[@pintudey9351]

8v ok কিন্ত স্ট্যান্ড বাই on করলেই ড্রাইভার 12v বসে যাচ্ছে tr, dr tr, & releted resistance ওকে.. Ic ok.. কি করবো aktu বলুন

[@anilkumarvadla1026]

👌

[@CosmicElectronics]

Thanks

[@pankaikatekar926]

🙏🙏

[@sksmartgmal]

Hello sir dubble caplar ic bort lg TV stand by realise n then stand by how to problem sir

[@emmanuelharuna586]

Thank you sir, what is the value of the 8v regulator

[@damindalakruwan4447]

I think it can be KIA78R08PI

[@CosmicElectronics]

Three pin regulators----
L7805CV------5V Reg.
L7808CV------8V Reg.
Four pin regulators------
S111733PI-----3.3V Reg.
KIA78R05PI-----5V Reg.
KIA78R08PI------8V Reg.
KIA78RO9PI-------9V Reg.

[@mdamerul9833]

Sam bod bright problem low

[@CosmicElectronics]

Check ABL voltage.
Check ABL line resistor 5.6K,1K.91K(or 68K).

[@soundandelectronics.4797]

China tv pcb এর 24 volt ar জায়গাই 12 আসছে।কী করবো বোলালে ভালো হতো। Capacitor change করেছি।

[@nazmulhaquebarbhuiya423]

একটু লম্বা video হলে বুঝতে সুবিধা হয় ।

[@bikashpatra2250]

21"LG সাদা রিটটেস লাইন তবে RGB কোন ভোলটেস নেই কি করণীয়‌ ।

[@ishuone9754]

102 or 5343 ki jagah kya no.. Lagega

[@CosmicElectronics]

Same value

[@gramercheleayintick4701]

Sir good mornig. MC019D pcb output transistor বারবার কেটে যাচ্ছে।কিভাবে voltage output section মাপবো।HZ এই section EHT change করা হয়েছে। কিন্তু কোন পরিবর্তন আনতে পারছি না। eht supply voltage 113v আছে। আমাকে বলুন sir। mo-8327259562

[@CosmicElectronics]

সমাধান জানা নেই

[@niazelectronics]

Sir g urdu language m bole plz

[@technicalmagic576]

Sar Hindi me bolo