Question about Sony DAV-FC7 System

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Goes into Standby, have to unplug to reset

Someone here said that this repair would require a trip to the service center as it was too complicated for the average consumer. For those of us how may have the electronics knowledge necessary to rip it apart and replace the broken components, could anyone describe what needs to be done/replaced? Thanks.

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  • 137 Answers

You have to lift one pin of the mircoprocessor and solder in a resistor from that pin to a smd cap on the main board. This does require a lot of skill as if when lifting the pin on the mircoprocessor you break that pin.You then have to replace the mircoprocessor. I have done this mod to over 30 unit and i still every once in a while break that pin.Of course my expense now.I can give you value of resistor and points of soldering if you email me as this is not common knowledge.

Posted on Apr 17, 2010

  • Dennis McCollum Apr 22, 2010

    SOLDER A 820 OHM RESISTOR TO THE RIGHT SIDE OF C250 ,THEN LIFT PIN 203 OF IC206 FROM BOARD AND SOLDER THE OTHER END OF THE RESISTOR TOO,LEAVE LIFTED FROM BOARD.

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The tv when ON it goes to standby mode until you press the power button again.It is doing these randomly.


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

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I have a Denon AVR1603, recently I plugged computer in AUX connections at rear (not loud) and it kept tripping out. Eventually it tripped and now the the on/standby light fashes but nothing else happens....


The LED flash indicates that unit goes into protection. Check the power transistors, the 0.22 ohm or 0.47 resistors in the output of the transistors.


SAM ANDERSON

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1 Answer

Samsung LCD TV UN55C7000WF will not turn on


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

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1 Answer

Dewalt DC616 flashes 6 times, motor runs 1/2ec. unplug battery to repeat


These tools are quite complicated to work on. Here is a parts diagram but I would highly recommend sending or bringing it in to a DeWalt service center for the repairs. This link is to their site where you can also find a listing of service centers near you.

DeWalt DC616 diagram

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1 Answer

Tripped my circuit and wont reset or start HELP!!!


Your circuit braker tripped because of a current problem that in your case caused a defective part. Since your machine is still under warranty, best way will be to contact to the appropriate factory service center for repair the problem. Good luck!

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1 Answer

Cannot turn the receiver on - when I push the on/off button, the standby button goes green, and the words begin to display across the front screen. As soon as RECEIVER displays, the unit turns off. The...


YOU MAY HAVE A PROBLEM IN THE OUTPUT SECTION OF THE AMPLIFIER AND THUS ACTIVATING THE PROTECTION CIRCUITRY. MAKE SURE IT IS NOT BEING CAUSED BY BAD SPEAKERS. REMOVE THE SPEAKERS, THEN POWER THE RECEIVER UP WITH THIS NO SPEAKER LOAD CONDITION. IF IT STILL GOES INTO PROTECTION, THEN THE RECEIVER WILL NEED TO BE SERVICED. THIS IS ALL YOU CAN DO AT THIS POINT, AS YOU HAVE MADE SURE THAT THE INSTALLATION IS NOT CAUSING THE PROBLEM, AND THE SERVICE OF THE AMPLIFIER OR POWER SUPPLY SECTION IS VERY INVOLVED AND TECHNICAL IN NATURE. IF YOU SEND IT IN FOR REPAIR, I SUGGEST SENDING IT TO THE SONY REPAIR CENTER, AS THEY HAVE A FLAT-RATE REPAIR FOR THESE RECEIVERS AND YOU WONT BE CAUGHT OFF-GUARD WITH A HIGH PRICED REPAIR. YOU CAN CONTACT THEM AT SONY STLYE=800-571-7669 OR TRY 800-222-7669. THEY WILL TELL YOU WHICH OF THE FOUR REPAIR FACILITIES TO SEND IT TO AND ALSO PROVIDE YOU WITH THE RMA AND FLAT-RATE REPAIR COST. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V

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2 Answers

TV switched itself off. Standby light flashing on and off once then five rapid flashes. Tv would come on but then turn off again after a few seconds.Standby light even stayed on when tv switched off at...


Subject

Unable to Power On or Off the set

Symptoms / Customer Description
The symptom may occur while the TV is ON or in Standby.

1) If the problem occurs while the TV is in Standby:
The TV will not turn on via the remote or power button located on the set however after AC reset (i.e. unplug the TV for at least 30 seconds from the AC source) the TV returns to normal operation.

2) If the problem occurs while the TV is in use:
You may lose the ability to power off the TV or switch the video inputs however channel changing, adjusting volume, or accessing the menu may still be possible. After AC reset (i.e. unplug the TV for at least 30 seconds from the AC source) the TV returns to normal operation.

Sony has designed the BRAVIA Televisions to be CUSTOMER Software Upgradeable and therefore Sony will not pay a service claim on any issue resolved by a software upgrade. If a customer requests an update please refer them to the following website: http://www.updatemytv.com. If the unit requires the update, you may enter the customer's information in the website and a USB device will be sent to their address.
If a customer does not have access to the web please have them call the Sony Call Center Support line: 1-866-210-6333

If a customer reports either symptom above request that they unplug the set from the AC wall outlet for at least 30 seconds and then plug the set back in. This will reset the TV and it should work fine for several months. If resetting the TV does not resolve the issue the customer has a different problem and a service call by a technician may be required

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1 Answer

Bright green picture


defective green picture tube crt. suggest local service center

Nov 09, 2009 | Toshiba 65HX83 65" Rear Projection...

3 Answers

Sony kp-46wt520 rear projection tv: standby light flashes


Two things here.

1) This is a CRT based set so there is no "lamp" involved.
2) The standby light should be blinking a repeated count of blinks with a 2 second pause between counts. Please report the exact count here. This will indicate the circiut in which a problem was detected.

With the above information, we can provide you with a more detailed description of the problem as well as the likely solutions and cost.

Thanks,
Dan

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