Question about Philips Televison & Video
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Posted on Jan 02, 2017
SOURCE: 42" Vizio - no picture no sound
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
connected.
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
Posted on May 04, 2009
SOURCE: 37"scott lcd tv power supply
We repaired ours for about $5. We have a page with pictures showing the compnents replaced.
Hope it helps!
http://www.findonefindall.com/toyota-sienna/LCT37SHA_Scott_Akai_LG_LCD_tv.htm
Posted on Sep 02, 2009
SOURCE: Need info on component 3071 on power supply board - burned up.
Its been a while since i worked on that power board. But I believe you are refering to the orange diode that runs into the single connector for the video board next to the power supply. I replaced mine with a 1n914 diode after replacing the 2200uf lytic cap and the tv fired right up.
Posted on Sep 11, 2009
SOURCE: Tv wont turn on
Replaced two N-Channel Mosfet transistors(FQPF13N50CF-ND) and some faulty electrolytic caps in the power supply. I found the Mosfets online at Digi-Key. Mosfets are difficult to read. Only one read bad but I replaced both because they are in the same circuit. Set works great now.
Posted on Mar 30, 2010
SOURCE: Power Supply Board for SAMSUNG 40" LCD TV Model LA40R81BX
You'll find some Samsung power supply boards here : http://www.usefulparts.com/index.php?main_page=index&manufacturers_id=11&sort=20a&filter_id=98&alpha_filter_id=0
but you have to open your TV first and find out model number
Posted on May 10, 2010
Aug 25, 2015 | Philips 42PFL5332D 42 in. LCD Television
Feb 28, 2012 | Philips 42PF5421 42 in. LCD Television
Jun 09, 2011 | Philips 37PF7320A 37 in. HD-Ready LCD...
Mar 21, 2011 | Philips 42PFL5332D 42 in. LCD Television
Nov 28, 2010 | Philips 42PF5421 42 in. LCD Television
Oct 21, 2010 | Philips 42 in. Plasma TV
Sep 06, 2010 | Philips 42PFL5603D/27 42 in. LCD TV
Jul 30, 2010 | Philips 42PF7320A 42 in. Plasma HDTV
Apr 26, 2010 | LG 42LB1D 42 in. HD-Ready LCD TV
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