PANASONIC SA-PT770 HOME THEATER SYSTEM NO POWER REPAIR STR-X6729
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- čas přidán 27. 08. 2024
- A Panasonic compact stereo home theater system that came in for repair as being dead. All it needed was a STR-X6729 power supply controller IC to restore total operation.
If you would like to support my video efforts please consider making a donation at www.paypal.me/... Remember with your help we can keep these things out of the landfill, the E-Waste, and out of the recycle bin!
Thanks for watching.
Dude I had the same problem with my unit after not using it for awhile
Funny thing is once I opened it up and spin the fan it stated working again, thank you for being so knowledgeable and detailed with the information.
Ditto! Thanks a million for mentioning this. I noticed that the wires were loose thus I seated them more firmly. Gave the fan a few whirls (minus power). Plugged in and off she went!
Another great walk through, thanks for posting. Good tip on being mindful that the caps can still have a charge even if the device appears to not be working.
Love your desoldering tool !!!!!!! Check all capacitors for High ESR too. Well done Sir.My sentiments exactly. Lets keep E waste bins to a minimum wherever possible.
I have the same problem with same unit. I live on Poland and looks like im gonna have to deal with it myself. Thanks for this video. ❤️
I always learn something from your awesome repair vids. Thank you for the tight solder close-ups - love it!
By following your video and replaced my bad str6768 now my dvd/5.1 surround back to life ,thanks for sharing your video and guide
hello your problem was the red led on? without turning on when pressing the power button?
@@yanniolaya1556 yes
@@slychong thanks brother
Help please, pins # 5 & #6 of STRX6729 they have continuity when are conectes at the board? Thanks!
Ayuda, pin #5 y #6 del STRX6729 tienen continuidad cuando esta conectado a la placa? Gracias!
Sorry its pin #2 and #3
Not 5 and 6 i look it in bad orientation
Great video.
Not only does NorCal715 talk the talk he walks the walk also.
Interesting and excellent repair! Thanks
Yep a fan can do a few things in ........ A friend called me about a desk top PC, he said the screen said CPU is too hot , so he let it cool down and nada.... I told him if he a spare tower that had the same fan in it , he could use that and he would have it up and running ..... He called me back later on and said it worked just fine.........BTW I just joined your team Mon Ami .............
Display says Hello YOU FIXED ME !
Thank you for wonderful video.
nice job thenks.more like this please
A very rare case when replacing a IC STR6729 starts working power supply.
I have also a no power, verrrry slow starting philips htc 7200/12 player set, and there are a lot of rare noises, when i power on, the touch device is on than off, blinking..
And after 2 minutes there is more power on, and backlicht also on. Now i wil know looking whats the problem, and i think its the same as you show, good video..
THIS CAUTIN ABSORVER I NEED ONE WHAT MODEL DO YOU NEED I HAVE A SOUND EQUIPMENT PANASONIC MODEL SA-AK770 AC 110 50/60 HZ 145 W THAT DOES NOT ACTIVATE THE FANS AND GETS ERROR F61 I HAVE THE REGULATOR IC STR-X6768 WOULD IT BE POSSIBLE WHAT IS THAT REGULATOR I WOULD LIKE TO KNOW WHAT OUTPUT VOLTAGE BECAUSE I CONNECT IT TO THE BOARD AND AT FIRST IT GIVES ME A 35 VOLT DIRECT CURRENT VOLTAGE BUT THE VOLTAGE SLOWLY FALLS TO 20 VOLT DC I WOULD LIKE TO KNOW WHAT OUTPUT VOLTAGE DOES IT HAVE TO GIVE? GREETINGS FROM ECUADOR
He made this one look easy but I wonder how long it took the find the bad chip in the first repair. I am sure it was not as easy.
Agreed. How do you find it in the first place?
@@xyloeye He is a brilliant guy , he knows where to look first.
just started to look at uk version of same machine sa-pt570 uses a STR-X6768 same fault, that cap in the uk has 320v on it will kill you. so sharp intake of breath here when you touched it.
Will try to change chip, definitely not starting to oscillate as Vcc only 10v so only from bootstrap. Only thing found so far was C5726 10mf 50v cap bottom blown out (vcc to s).
Great job thanks
Thanks for the video! I'm positive this will work (have the 2 clicks w/no power and no fan + it does power on sometimes but then gets warm after watching a film and then shuts off after mere minutes. Was running on wrong voltage, 110v, when it should've been running on 220v. Power controller probably damaged now). Does the SK number matter? Code on power controller is as follows: STR X6768 (SK 9526N). KSA/Middle Eastern version SA PT-875.
நன்றிநன்றிநன்றி
Just how a repair video should be - relevant information , concise and to the point.
And successful.
Well done.
i dont mean to be off topic but does any of you know of a trick to log back into an instagram account??
I somehow forgot my login password. I would love any help you can offer me.
@Kayden Franklin Instablaster ;)
@Samir Wade Thanks for your reply. I found the site on google and im waiting for the hacking stuff atm.
I see it takes a while so I will reply here later with my results.
@Samir Wade It did the trick and I actually got access to my account again. Im so happy:D
Thank you so much you saved my account!
@Kayden Franklin you are welcome =)
How you rectify STR IC is faulty without checking values in multimeter
You can do a basic check if you can get an internal view, Usually if you google the part number you can find it. At least you can check diode junctions and some resistor values that way.
Very interesting repair.
I have sony hcd-sr2 made in korea 5.1 amplifier it turns on then show standby. any suggestions?
I have the Panasonic SA-PT650 and I hooked up a after market sub, i can hear sound from the actual speakers but nothing from the sub. Any clue what that could be?
Hi, I have the SA-PT470 and it does the same two clicks than yours do, will check it later but it's probably using the same STR-X6729 controller, did you get any weird measurements in diode function on that component?
Thanks from Medellín Colombia.
need help... any ideas might be of help... i have an older jvc mx j900 stereo.. i moved the other day, opened the back door to truck and stereo fell to the ground and now it won't turn on it landed on the top left corner , i have taken it apart and see nothing cracked or unplugged .all looks normal.
What if i cant switch to aux or dvd with remote or manually it only changes to radio staions volume up n down it was working fine yesterday ..what could it be if u could help me out would really apreciate it
Look in the owners manual for a factory reset procedure. Try that first. Is should restore it to like new out of the box condition.
I have the same problem with my panasonic home theater system sc ht 700 as well 😔 just wishe I can get it fixed its the only thing I have of my father 😢
@ 4:40 minutes of your video, there are some more looking brown or branded connection spots, on the right from the red sparkles, you can see, is that oke? Or can it given also some error issues?
I am having the exact same issue with mine. However it still does the same thing after I replace the 6729 chip. However, when I check two of the 33k resistors like you did I only get 31.86. The 22k and the 33k next to it have good readings but those other two are low. Could that be the issue? Do I need to replace those? Where do I purchase them or is it not worth it?
the same problem happens to happens to SA-AKX600 could that be the same resolution because it also showing F61
I have a sa-bt100 it is getting no power no on lights and not making any clicks or noises . I have tried multiple power cords to see if they were bad but not working still . What should I do next
My panasonic sound system sa-ak117 also not turning on does the same clicking sound while pressing the power button
Will be the same issue
9:36 that Electrolytic capacitor on surround sound board looks really nasty from this point of view.
It does look a bit brown on top. If it looks bad, and measures high ESR (or is open) - I'd recommend replacing it.
I can't tell if it's a peaking coil or a cap from this angle. A close-up view would show more clearly.
It just had brown paint (marker) on top of it. It was not domed or bulged at all.
@@norcal715 Why would there be paint on top of a capacitor? I understand sometimes the factory mark them with a blue, green or red felt pen but brown paint looks a bit unusual - especially on one cap.
How many volt on power
Hey, if got a old sa-xh150. No power. Im a noob but im trying. Fuse is ok, but then im lost.. i really want to learn how to fix
Hi need that IC can you help?
from India
Hai.. My panasonic sa pt980 model home theatre are not audio output problem. Power on running successfully. But play song audio output was not coming.. Ask to service center he says audio board was problem u can change the board issue was solved. They are costly... Any solution?
Usually I do not change boards, I try to repair the problem on the original board. Contact me by DM on Facebook, Twitter, or Instagram
@@norcal715 send ur whatsapp number pls?
@@norcal715 hi. How can I reach you on Facebook
My model is SC-XH301 power on problem kindly support for that ...
What was that unsoldering tool please?
It is a Hakko FR-301
I have Panasonic SA-PT870 with the same issue, after plugged into 240V socket with voltage switch as 110V (yes, this is a dual voltage version). It worked for a while after my mistake and now it is dead with this two relay clicks. I replaced STR-X6729, but it still has no power. I took the board out and checked the rest of diodes, transistors and caps and so on, all seems just fine, but the STR-6729 is simply not oscillating!! Vcc is only at 8V after I took the board out and shorted the relay contacts. The 10uf/50V cap is also fine. I am running out of idea on how to isolate the issues. Any ideas on what else I should look for will be greatly appreciated.
I had the same problem if you fixed it, please help.
Hello I have the same device with the same problem, Where could I send you my equipment to repair it, would this repair be very expensive? Thank you.
I have this same unit and same exact issue with the two clicks and no power. Should I assume it's most likely the same issue or is there a high probability it's something else also? Don't want to waste my time trying to fix it if it could be a number of things.
Ciao cosa significa sum err?
I really need help I have a similar Panasonic 5 disc changer SA-HT930
Maybe they don't get any power onto it anymore because it's over 20 years old.
I have SA PT470,
Hello my friend. I have same problem on my. Panasonic sa-pt740. Its the IC same number?
Most likely it is but I do not have the service manual for that model.
Can I send you my sa pt-673 for repair?
Hello Norcal715, I have exactly the same equipment with exactly the same fault, now I ask you a question, is there a possibility that I send it to you by mail and you do the repair, how much is the cost for this repair? Thank you very much in advance.
Email me Norcal715videos@gmail.com
I wish there was a way to cheat this. Dont think id be able to buy parts for mine
i have same device.
in my device relay dont turn on.but i have 5 volt .
Do you hear any clicks when you plug it in or when you press the power button?
@@norcal715 hi .i can not hear click .please help me .thanks for your attention.
@@norcal715 nothings
panasonic SA-HT670 WAIT ........ BROKEN MECANISM DVD SKIP PROTECTION???
Can you repair my DVD player for me
If so how much do you charge
for details email me @ norcal715videos@gmail.com
What NorCal means
Northern California (North of Sacramento)
No Power, two clicks
Can I pay you to fix mine
Send me an email norcal715videos@gmail.com
I am looking for engineering skills