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LG Home Theater Turning OFF Immediately After Its Switched ON

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This LG Home Theater was turning OFF immediately after the owner switched ON. In this video I take you step by step on how I solved this issue. Note that this is not a How-To video on how to fix this problem.
I did not use any digital multi-meter to check any components in the power supply. My experience of noticing a swollen capacitor and replacing it was all that was needed.
Model No. DH4220S
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Опубликовано:

8 мар 2020

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Комментарии : 123

@aida490 2 года назад

I've been suffering with this issue for over a year. Having to constantly press the power button for like 20mins to finally get sound. Watched your video and decided to give it a go. 9 pound soldering iron and 2 pound for the part. Fantastic!! Thank you. 👍 top bloke 👏 👌

@gallardo20000 3 года назад

THANK YOU SIR. Had the same exact issue with my similar LG unit, opened it up, sure enough one of the capacitors had the bulge and was blown. Ordered 5 same spec capacitors off amazon for $8, opened the unit, soldered, works perfectly, saved my $400+

@chemistrylearnerschanneltv9079 3 года назад

Good one, you're a professional technicial, I hope you can still give more here.

@DominicGichane 3 года назад

Thanks

@dkinez 11 месяцев назад

@@DominicGichanethankyou for this video, I’ve never been any good at soldering and watching your video not only helped me fix my capacitor issue but the tip of bending the prongs really helped keep it in place and also prompted me to buy one extra capacitor Incase I had any problems. Now my home theatre has a new lease of life thanks to you!

@oruamenohimai2897 3 года назад

Mine was affected by thunder, it does same. But it says "goodbye" before it goes off. How can I fix it?

@martymartin2894 2 года назад

Mine same did u get ures fixed.

@zesrg3 2 года назад

A had exactly the same problem.

@oruamenohimai2897 2 года назад

@@martymartin2894 not fixed

@odohemmanuel8834 Год назад

Same with mine, please any help on that? It comes on and stays for fee seconds before good bye and it goes off

@oruamenohimai2897 Год назад

@@odohemmanuel8834 Not repaired, I had to get a new one

@maggiewughanga1048 4 года назад

The best video on youtube. I have a lg ht914s, and the problem is, aux and radio have a poor volume. It's actually very law with zero base

@DominicGichane 4 года назад

You say the AUX and FM Radio have low volume. Assuming that CD and DVD have normal volume, then the problem might be with the main board.The only remedy will be to replace it. Now this might be a problem because I am 100% sure that all spare parts for this model, HT914S are discontinued. My advice would be to buy another home theater system.

@eyeh8liberals 4 месяца назад

Thank you so much, the cap on my board wasn't even swollen and without this video I would have never fixed it.

@mauriciosapata4527 Год назад

Amazing, man... thank you so much for sharing this! Just fixed my brand new home theather... thought I'd have spent quite some money to fix it.

@juliom6260 4 месяца назад

Mine is a Pioneer that does the same . Opened and saw same problem. Will fix it next week. Thanks

@lewikay 4 года назад

Gichane good work...watched your video my hometheatre sony DZ350 model had same problem..change my capacitor na saa hii iko fiti.Shukran..keep the good work

@chemicwaq Год назад

Thank for this video. I have a similar issue with my sound system for over a month. Will give it a try.

@ernestndinya8494 4 года назад

Hey Dominic what do you think the problem could be for a home theatre that has volume fluctuating on its own, it goes lower on its own and after sometime it goes up and down again. when you turn it off it goes back to normal but after 2 minutes the problem reoccurs. Can you suggest what could be the problem, cheers.

@DominicGichane 4 года назад

The problem could be one of the following 1. The amplifier IC is going bad and needs replacement. 2. One of your speakers has a short circuit. For problem 2 try disconnecting all speakers and connect only one at a time. If one of your speakers has a problem then the volume will start fluctuating after you connect it. If the problem is not a speaker then its the amplifier IC which is connected to the main board. So the main board needs replacement for problem 1.

@benberean3816 2 года назад

Thanks you are our very own. Mine keeps on going back to aux. The 34v is there but when you return it to mb it disappeares.

@RommudohDev 10 месяцев назад

I had exactly same issue, same capacitor (even the same manufacturer "Chang"). After replacing it my device worked fine again.

@DominicGichane 10 месяцев назад

Wow. Great

@nathankaranu3791 2 года назад

Good presentation, I have LG DH6430P everything is working on well but the machine is not responding to my remote. I've even bought a new remote but it's not working. What could be the issue?

@DominicGichane 2 года назад

Thanks. My guess is the front PCB is the problem. It would be better if you took it to a technician to check the exact problem.

@andrewcharles5751 3 года назад

My lg Blu-ray home theater 625 has no power supply not switching on what do you think is problem fuse is ok

@adrianagiraldoespinosa5227 4 месяца назад

Excelente tutorial. Me podría informar por favor cómo puedo escuchar música desde mi celular sin utilizar el bluetooth.

@ojosundayolushola6050 Год назад

Please, my pioneer blue ray disc receiver model number is XV-BD521FSW.... What is the motherboard part number? Thanks in anticipation

@Mr_Matu Год назад

Thank you so much sir I found the same capacitor swollen.

@ogwuchefrancis8263 21 день назад

I ve LG HT358sd, when power on, it stays, but immediately u play it, no sound bt it will off itself

@adadicka 2 года назад

Hi Dominic, I bought lg 647 and it had an issue of fading out sound after an hour or so, I went to service center after repairing it the issue continued. I was given another new one again the same problem, so we decided to upgrade to lg 657 which after singing for an hour again it did the same by fading the sound off,what could be the issue?

@VikushaCooray 4 года назад

I have a LG model BH4530T. My home theater getting the welcome signal and getting automatically turned off. Can u help me to get out of this please.

@VikushaCooray 4 года назад

Please Can I have a Soon reply. Because I need this badly these days

@DominicGichane 4 года назад

It is very hard for me to pinpoint the exact problem but it could be one of the following. 1. The main board has a problem 2. The power supply could be faulty. 3. One of your speaker has a short circuit and that is why the unit is turning itself OFF in order to protect the mother board. The first thing you should try is disconnecting all the speakers and see if the problem persists. Take it to a trained technician if the problem is still there.

@raychuable 10 месяцев назад

Same unit and same problem encounter with my LG home theater. Raymond From The Philippines

@niesmiertelnatrzustka5111 6 месяцев назад

Does anyone know what the power amplifier is in this home theater?

@SamR.007 2 года назад

Hi Dominic, how can someone reach you incase I want you to repair my faulty system?

@MohamedHassan-ob7yg 3 года назад

Hello dom I same lg device same problem but with different model number dh4530t I am afraid to do this myself And lg egypt will change the whole board and its not available at the moment What could ido?

@suhailanjumabdurraheemsayy7639 Год назад

Thanks for the video. I have similar lg dvd, but no one is available to repair it. I shall try your method.

@DominicGichane Год назад

Did it work?

@suhailanjumabdurraheemsayy7639 Год назад

@DominicGichane no sir! I didn't open it yet. I shall try it.

@DominicGichane Год назад

@@suhailanjumabdurraheemsayy7639 ok

@vicjack4359 Год назад

Please, my LG DVD HOME THEATER DH6230S will be on for like 1 minute then go off. Pls any solution?

@sharjeelshaikh2 Год назад

Hi , your videos are quite informative, keep up the good work. I wanted to know where can I get a motherboard for LG DH6230 model or any similar alternative. I have already shown to a technician and he has advised for a new MB, I am based in UAE, thanks in advance.

@sircosby9453 7 месяцев назад

Mr Dominican, my LG home theatre voltage keeping up and down

@tumelodhlangamandla596 4 года назад

Good day I have a similar issue but I can't see any faulty capacitor.Mine switches itself off after about 30seconds without saying 'reading'.Please help out

@DominicGichane 4 года назад

First try and disconnect all speakers, then switch ON the device. Tell me what happens.

@tumelodhlangamandla596 4 года назад

Same thing still happens.It switches itself after a few seconds

@clemify2507 3 года назад

Exactly the way my is doing. Please help. Thanks , God bless.

@petermwaura3027 3 года назад

Hi mine switches off and has no audio, where you based as I do not want to mess it.

@petermwaura3027 3 года назад

@@DominicGichane can you give your contact pls

@chanzrox4051 3 года назад

can we change the FM channel without the remote? PLEASE REPLY

@DominicGichane 2 года назад

You cant but if you connect it to an LG TV with Simplink, then you can use the TVs remote to change FM stations like I did here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wHtn2UJLgOU.html

@Joseph-hl1zn Год назад

Hellos brother, thanks for what you do, I have a similar problem, my just goes off without any warning and will not come on again until maybe after 6 hours. please the model No DG6535D - F0 .DNGAFLK. Please help 🙏.

@clemify2507 3 года назад

Sir Dominic please how do I fix this my home theater, it will play for about 40 to 50 secs seconds and goes off.

@babyakasha4002 3 года назад

Me too i am experiencing the same problem. Any clue pls

@simonfish5628 3 года назад

Hi Dominic my LG arx8500 turning off it self after playing less than a minute plz help.

@adeniyiadeyemi19 4 года назад

Great job, I have a LG ht904 changing source and the button on the home theater not working. Can you help?

@DominicGichane 4 года назад

This simply means that the display PCB is failing. The only remedy is to change it but it may be discontinued. My only solution is to use the remote control.

@adeniyiadeyemi19 4 года назад

@@DominicGichane with the remote it keeps changing source. do you mean I change the entire system ?

@DominicGichane 4 года назад

@@adeniyiadeyemi19 I meant changing the display PCB. It contains the display as well as the buttons. Since you say it keeps on changing, try and have the display PCB cleaned with dry cleaner first.

@henryosoro7696 2 месяца назад

Why my lg home theatre keeps on changing from BT to FM ,AM and it goes OFF

@przemysawanczarowski3459 3 года назад

Hi my name is Przemek can You tell me what can fix to very hot board and freeze function on my Lg Bh9540tw, I really was grantedmy question? Greetings from Poland)

@robertweru1752 4 года назад

Hello. I have an LG HT950A ,it powers on but doest not go past the standby mode in red power indicator. What would be the problem please. Kibe

@DominicGichane 4 года назад

It could be the main board

@kickstart617 2 года назад

Can I add 5.1 input to my lg home theater dvd player, separate for each channel??

@DominicGichane 2 года назад

Yes, by using the optical cable

@santanusahoo2378 3 года назад

Lg 427 homthyatar one problem no coming for sound display see good bey OL MA what problem

@rinasadventures9301 3 года назад

Hi,are you around Nairobi,my Lg will work for afew seconds then goes off and produces a wierd sound..

@kaeflah 6 месяцев назад

Same issue, sound through all speakers

@kamu07bgmi75 3 года назад

i need New power supply......any Website???plzzz

@reprinttv4823 4 года назад

My Panasonic SA-VKX95 Keeps turning off. Can you help? Reply ASAP

@davidcross701 4 года назад

Thanks! So it, seen other videos, can be the fuse, compositors blown top, soldering connection may be lose, and IC's and regulators. Check them .

@bolajiabiodun480 3 года назад

My was affected by thunder, how do I Fix s- protection

@falokunemmanuel9577 3 года назад

When i just turn on the HTS and its connected my phone Bluetooth , the sound is so loud and robust. After 5 secs the sound slowly declines and stops at a much lower and softer level.

@anatoliibraun8400 3 года назад

I want to ask, can anyone in the topic, there is such a device LGHB976TZW, the receiver itself is dead can not be repaired there is a replacement of the board is needed and I do not find spare parts for it anywhere, the buffer itself from the receiver is connected by air via Bluetooth, the other speakers are all connected to the buffer, respectively, they also do not work . Maybe there is some universal receiver that can turn on the buffer to make the whole system work?

@electronicsdoctor3118 4 года назад

I have the same home thearte but mine is got no sound can u help me plz.

@erico1000000 3 года назад

I am looking for power supply board for LG LHD645

@adala130 2 года назад

Hey sir do you fix for people too?

@aroyenaroyen8090 4 года назад

Hello, can you guide me why my lg home theatre lhd 647 display suddently disappear, but the sound still working.

@DominicGichane 4 года назад

The display/control PCB is faulty. The only remedy is replacement.

@lanresalau461 4 года назад

Hi, I have a similar problem but mine stays on for about 5 to 7 seconds before turning off. I noticed that I can switch input if I'm fast enough so it can't be the firmware problem I initially thought it was. I opened it up but didn't notice any swollen capacitor. Please, what else could be the issue? Thanks.

@nonodelairo7834 2 года назад

@@TheTheHipster same problem here, any clue?

@musankuna2396 4 месяца назад

I have Lg home theater it turn itself off while playing no warning it just goes off

@jagadishvijaypillai5895 4 года назад

Dear sir, How much does the mother board cost for LG DH3140S 5.1ch 300 watt. LG local service center is charging me Rs.2806 + service charges extra, can u please suggest me, how to order the motherboard at lesser price.

@DominicGichane 4 года назад

Seems like you have a very good deal. Here in Kenya, the same spare is sold for around 80USD. The installation charges are an extra 20USD.

@KamarulAzlanAhlengChai 5 месяцев назад

mine car sunshield dvd monitor also face the same.. turn it off by itself..

@DominicGichane 5 месяцев назад

Try disconnecting all the speakers and see if it will still turn off by itself.

@kaeflah 6 месяцев назад

I had the same problem, i never turned it off, now it's not working at all, i turn it on and it shuts down itself

@crestwilliam4813 Месяц назад

DVD HOME THEATER , LG MODEL -LHD655BT Problem S-protection

@danrayalu6262 4 года назад

Hi I'm new to this... how do I take off the power supply from the motherboard

@DominicGichane 4 года назад

I would suggest that you don't. Take it to a professional

@mildredchepchumba4479 3 года назад

Hey my Sony has same problem.. le me try change the capacitor

@hanykimo9081 2 года назад

lhb755w d protection what can i do

@itstyrac6402 6 месяцев назад

I wanted to buy LG Lhd 657 but after watching this video and going through the comments, I think its clear to say lg home theatres are no good.

@lxg40 3 года назад

Hi I want software upgrades devices drivers forHome Theatre Systems LG HT965TZ please.It’s updated IC FLASH.Can Help me? pliz

@DominicGichane 3 года назад

Updating software only makes sense for Blu-ray devices. You can easily brick your device by updating it manually with software downloaded from the internet.

@DominicGichane 3 года назад

I also don't have any LG Home theater software.

@Revelation13-8 11 месяцев назад

I have the 2010 5.1 LG surround system with the tall black speakers with blue tint on them , the dvd drive keeps opening it self on its own , i am never clicking on anything , anyone in the comment section know about this issue or how to solve it? thanks.

@ikpeweeliana4034 Год назад

My LD687BG keeps going off after 5 seconds.

@normalname3037 2 года назад

LHD427 only shows DT and doesn't play. It used to say DT READY

@DominicGichane 2 года назад

Could be a main board problem.

@henryamingamirito 3 года назад

hi am looking for lhd427 power supply board

@DominicGichane 3 года назад

I checked and I don't have one

@derickkinoti3887 Год назад

Can I get its motherboard

@anandkadam3315 3 года назад

Sir mera LG ka dvd on kiya to welcome batata hai or 1 min me power off dikhata hai or band ho jata hai kya problem rahega sir

@williamwong5627 Год назад

I have a LG FDB 103 mini DVD system. It works all right except the CD function displayed "Locked" and won't open the tray. Call LG service centre and they had no clues? Nothing in the manual mentions this message. Does anyone have any idea to unlock it.😂

@francomond3662 2 года назад

LG 657 is not playing DVD

@alfredoespiritu1752 9 месяцев назад

With power but unable to turn on.

@theeomulamuzi3613 Год назад

my display is not showing anything

@Milkedcookies 4 года назад

Is there a problem with lg hometheatres

@maggiewughanga1048 4 года назад

I think so.i have an LG home theater and i have decided to never buy anything from an LG shop. NEVER!!!

@DominicGichane 4 года назад

The simple answer is No. If you replaced the word LG with another brand in your Google/RU-vid search query, you might come to the same conclusion about Sony, Samsung etc.

@DominicGichane 4 года назад

Why?

@kaeflah 6 месяцев назад

Mine lastet for 15 years before this issue