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We have a Coby 55 that is shutting off after 15 minutes of working, I checked to be sure no timer us set, there is not. I have done both resets, unplugging & restore. Please help

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  • Coby Master
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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. Pull up older posts. http://electro-medical.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.

Posted on Dec 06, 2016

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Posted on Jan 02, 2017

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Reset 32" coby tv to factory setting TFDVD3297E


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; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.

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No guarantees, but first unplug the unit (when it is on), wait 15 or so minutes, plug it back in and see if this recycling move will fix it. Also, check to make sure you haven't inadvertently set some kind of timer. Good luck . . .

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My Visio vp50 hdtv20 will shut down after about 10 minutes then after about 10 minute you can power it back up


Do a reset to this TV, and then check. Check whether the timer function is set to On, and it is set to 10 minutes. If it is ON, set it OFF. Refer its user manual for details.
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; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/
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1 Answer

Sound goes off after 15 Min


Assuming it is not hardware but soft settings...
1) Check and make sure that your TV does not have the timer set.
The Timer feature allows you to set a day and time for the TV to turn on automatically and the device and channel to display when it switches on. If the TV is already on at the requested time, the TV automatically tunes to the channel you designated in the Timer menu.
When the Timer turns on the TV, the following message is displayed: "Press a button for the TV to stay on." Press any button on the remote control within five minutes if you wish the TV to remain on.
Note: The TV clock must be set before you can use the
Timer feature (see preceding page to set the clock).
On/Off
Press down arrow / up arrow to enable or disable the Timer.
2) If not working, try SYSTEM RESET. Press SYSTEM RESET button on the front panel with pointed object (e.g. straight paperclip). TV turns off, green LED flashes for about 1 minute. When it stops flashing turn the TV on again. All settings other than Parental Lock need to be set again using the manual.
3) TV RESET. If all else fails for soft error. Your manual describes this last resort for soft type error. It could be hardware problem needing more expertise.
Manual can be viewed on a computer at
http://www.audiolabga.com/pdf/V32-V32L_Service_Manual.pdf

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I tried this and it worked fine
FACTORY RESTART:
A Factory Reset will erase the connection between the Display and the Thermo-hygro sensor and allow a fresh connection to be re-established. It is recommended to have the display and all sensors 5-10 feet apart for this restart.

ENTER PROGRAM MENU
Press and hold the SET button until you enter the program menu. Press and release the SET button until you see 'rES oFF' flashing.

FACTORY RESET ON
Use the UP ARROW key or DOWN ARROW key to turn rES on.

CONFIRM & COUNTDOWN
Press the SET key to confirm and a countdown timer will begin counting down from 127. When the timer displays dOnE, you must remove the batteries from the display for 10 minutes

REMOVE BATTERIES FROM THERMOHYGRO AND RAIN
While the batteries are out of the display, also remove the batteries from the Thermo-hygro sensor and the Rain sensor. Wait 15 minutes.

GENTLY KEY THE WIND SENSOR
Gently key the wind sensor one time to activate the sensor.

INSTALL BATTERIES INTO THERMOHYGO AND RAIN
Insert fresh alkaline batteries into the Thermohygro sensor and Rain sensor make sure to check polarity with the markings on the battery cover and inside the battery compartment. Wait 2 minutes.

INSTALL BATTERIES INTO DISPLAY: Insert fresh alkaline batteries into the Display. Make sure to check polarity with the markings inside the battery compartment
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AZ Road Runner






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This is a sign of a failing capacitor set on the power board. there may have been a small or minimal pulse that went threw the set during the power outage and when the power was restored. this could also be overheating as well due to dust forming on the power boards components. i would remove the back cover and clean as much dust off the power board as possible with some sort of canned air if possible. make sure the cooling system is working properly as well.

please rate and god bless.

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1 Answer

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