Question about Panasonic DVD Home Theater Sound System Receiver Sa-pt760 5-disc Chan

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Need schematic for panasonic sa-xh50

No power ,have voltages at power board but without schematic i dont know if theyre correct.ic 901 has possible burn mark on it.

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Posted on Jan 02, 2017

SOURCE: I have 2 Technics SA-GX390

When go to overload always be the audio amplifiers IC damaged disconect the ic and then turn on the device it this stay replace the ICs.Good luck

Posted on Aug 11, 2008

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1 Answer

Im looking for an IC number for a Panasonic sa-he75 amp


If you can give me the IC location on the PCB i can maybe assist you. example IC701 etc. If possible send me a pic of the back plate where it shows the model and voltages.

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Panasonic sa-pt770 will not power on


When power is applied do you get any LED light or display that shows?

Dec 27, 2014 | Panasonic Sa-pt770 Receiver

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NEED SCHEMATICS OR POWER BOARD 0500-0507-0250


I also have a problem with one of these boards, I don't have even the standby 5 volts which is my problem, I change IC 901 = ICE3B1565 but same problem :(

Jan 08, 2014 | Vizio Televison & Video

1 Answer

Hi there, do you have the schematics for the Panasonic CT-27sf37b. This TV won't power up but making a high pitch sound near the thermistor area. Thanks.


Hi Richard,


First of all thank you for contacting Fixya.com regarding your TV problem.

You have mentioned that you can hear a high pitch near the thermistor area and the TV won't power up. I've saw also in another link that you already replaced the thermistor but the symptoms still persist. You stated that the thermister heats up, that is normal and not an issue in this kind of symptoms. You can power up the unit even without the thermistor in the board and check if the high pitch will gone or not. But I've suspected that the symptoms will remain the same because the pitch came from the chopper transformer.

I've encountered this kind of symptoms not only on panasonic CRT TV's but almost in all brands. And the major caused of fault is the faulty electrolytic capacitor in the Voltage regulator IC. Your unit used STRF6524 (mounted on the aluminum heat sink) as voltage regulator IC and it has an electrolytic capacitor on its circuitry. I would advice you to replaced it to resolve the issue. The largest electrolytic capacitor is not the suspect here (don't replaced it).

Also check for bad solder joints around the regulator IC. Cracked, cold, dried solder can produced that kind of symptoms. It is hard to spot, you must used magnifying glass and work in the brightest area or much better to re-solder the suspected bad solder joints.

I have various of Panasonic schematic diagram but most of them is a LCD and Plasma TV. I don't have this model no. but please check the chassis no. of your unit and I will try again to find it on my supplier to give it to you for free as much as possible because I've saw it HERE but I don't think the price is reasonable.

Please let me know if you need further assistance.

Again, thank you and have a nice day!

Kind Regards,

Jdvillanueva

Dec 07, 2011 | Televison & Video

1 Answer

Would any one be able to get a part #, cost for the regulator, for my Panasonic SA-CH94M? I believe this is the culprit with the F61 error code. Thanks!


the F61 error on panasonic home theatres can mean 1 of 4 things, its either you have the wrong speakers plugged into the wrong port (yes apparently this matters check correct speaker placement), the fans are not working at all or working poorly (simply clean with circuit board cleaner or replace fan you may have 1 or 2) if none of the above then you have the worst one wich is one of your power amplifier IC chips somewhere on the main circuit board has died (good luck fixing that one) obviously varies from model to model this is based on th SA-HT545 and the SA-PT450. Sometimes a new HDMI cable will solve this issue.

If the cables are good, then the easiest possible fix would be to clean or replace the rear electric fan. I had the same problem and after replacing the fans my unit works like new. I called panasonic to order the fans because these type of fans you can not buy out of any store. The rear fan is also an upgrade to a better bigger fan. Part numbers are: L6FAJCCH0007 $19.12 (side fan) RFKZHT540E $28.35 (Rear fan) total shipped to me was $61.43.

Happy Holdays! Dont forget the feedback! Thanks!

Dec 18, 2010 | Audio Players & Recorders

1 Answer

Meron picture kaso may itim sa gilid


Magandang araw po, itatanung ko lang po kung ang picture ba ay kumpeto sa gilid? wala po ba na nawawalang parte ang picture? tingnang po ninyo sa ibang tv kung kumpleto ba ang picture na lumalabas sa TV nyo. Ang mga possible po ay, mababang voltage ang pumapasok sa tv. pacheck po ng power supply regulator, at filter capacitor. maaaring loose ang lcd sa main board. Sana po makatulong po ito. feel free to ask again, let me know your TV progress. salamat

Jul 28, 2009 | Panasonic (TH-50PZ700U) Television

1 Answer

No sound from tv with philips HTS8100 THEATER


Hello,

First, check you menu settings for (High Definition Media Interface) HDMI on your TV and on your home theater system, if they are correct then, I have bad news the HDMI port on your TV or on your home theater system has been blown. This is a common and on-going problem with HDMI. The control circuitry is suceptable to stray voltages, which cause the HDMI IC and circuit to malfunction.

I would suggest if it is the HDMI port, having a qualified TV technician troubleshoot the problem and give you an estimate on the cost of repair.

However if you want to try to do this yourself, here is what you will need:

1) schematic of the TV
2) multimeter
3) Oscilloscope (optional)
4) HDMI signal generator (This can be improvised if you have a background in electroniocs)

First unplug the TV and remove the back cover. Then using the schematic find the voltage rail that suppllies voltage to the HDMI port. Plug the tv back in and turn it on. Using the multimeter set to DC volts measure the voltage on the HDMI port control IC and compare it to the schematic values, if they are different within 10% then you have a problem with the IC and it needs to be changed out. If there is no DC voltage difference the look deeper into the circuitry, and follow the path to the main processor, checking the voltages and comparing them to the schematic values. If this proves to be unsuccessful, use the oscilloscope to look at the wave forms (These will be digital pulses) and compare them to the schematic values (they should be as close as possible to the schematic values).
Once you determine that the problem is in the HDMI IC you will need to remove the IC by desoldering it. After the IC is removed clean the area and then replace it with a new HDMI IC.

If you need asistance with the process let me know and I'll try to walk you through it. The best bet however is to call a TV technician.

I hope this helps,

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

Feb 11, 2009 | Panasonic PT-53TW53 53" Rear Projection...

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