SOURCE: VIZIO HAS YELLOW POWER LIGHT BUT WILL NOT TURN ON
The TV is just on protect mode, and that means that any possible internal fault apart power cord can cause this.
To find the fault you need to test the tv, if you are experienced in repairs you can grab the service manual and followtroubleshooting diagrams to test the tv, starting from PSU, to LCD controller, mainboard, inverter, signal board.
Here is general troubleshooting:
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
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.
SOURCE: yellow light is so I have power but remote or
Its a vizio l37. I bought it in 2004 from Sams and haven't had any problems until now. We took it to a repair shop and they charged me $55 to tell me it was dead. They said they could fix it by replacing the main board which costs $250 with an additional $250 in labor. We said no thanks to the $500 repair and bought a new tv for $600. Now its in the garage and I'm wondering if there is something I can do to fix it for less. Seems like a waste.
SOURCE: no picture power just a yellow light
Check the power supply module for bad DC filter caps, and the DC output voltages. Check the backlight inverter board for short circuits.
http://s807.photobucket.com/albums/yy352/budm/VIZIO%20L32HDTV10A/
If you are going to DIY and have proper tools, knowledge of electronics and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
SOURCE: vizio e320vl light changes from yellow to whioe and diplays
I've seen that problem before and for this person it turned out to be a bad ground on the outlet they were using. I've also seen waiting for it to turn it self on after its on off fit sometimes works.
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