Question about Televison & Video
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: LC-37AF3X Sharp Aquos KCD TV
If the TV goes in standby, then it is in protection mode.
Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
Try first leaving the TV power cord unplugged for some times, let say one hour or so.
The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.
1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.
2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.
If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.
If you are in situation 2 , then there is an internal fault.
If under warranty contact the manufacturer ringing the number on the user manual
If you want to repair at your own expenses, just locate any good qualified repairer.
If you want to DIY you find parts here,
All: Appliance parts, electronics parts & more from PartStore.com
Encompass Parts Distribution
LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |
On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem
On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.
On Rear Projection : check lamp, lamp ballast, power board, and convergence.
On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.
Posted on May 05, 2009
With the 4 long screws removed, it should come out.
Here's where you can download the manual for the LC-46D62U.
It has the instructions you need for the stand.
Posted on Jun 02, 2009
Do you get any indicator lights at all, if you do, then the 5v standby circuit is working, if you get nothing at all, then the main power supply will be the first palce to look, blown fuse? capacitors?
Posted on Nov 06, 2009
Tips for a great answer:
Sep 06, 2014 | Sharp Aquos Televison & Video
Mar 03, 2013 | Sharp Aquos LC-37GD6U 37 in. LCD HDTV
Jul 14, 2011 | Sharp Aquos LC-42D62U 42 in. LCD HDTV
Jul 10, 2010 | Sharp Aquos LC-37HV4U 37 in. LCD HDTV
Jul 15, 2009 | Sharp Aquos LC-46D62U 46 in. LCD HDTV
Jun 02, 2009 | Sharp Aquos LC-46D62U 46 in. LCD HDTV
Jan 18, 2009 | Sharp Aquos LC-46D62U 46 in. LCD HDTV
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