Question about Sony FD Trinitron WEGA KV-36FS120 36" TV
The tv goes on, but the picture screen goes black every minute or so. This is associated with the flashing red standby/timer light.TV is from 2004. Not a flat screen.
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How many times do this standby light flashes at one time switch ON? Count it. These flashes are fault indications. From the number of flashes, you can get an idea about which section circuit inside it is faulty. After confirming it, If you wish to get more details of these blinking codes, check this link.
Posted on Mar 02, 2013
SOURCE: Pop sound, flashing standby light, blank screen
How many times this light flases in TV?
Posted on Aug 01, 2008
SOURCE: Standby Indicator flashing SONY KD-32NX100U
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.
1Theinternal circuits are jammed because of electrostaticcharges accumulating on capacitors, or because of a wrong voltage readby the main chip on your monitor controller board. this started theprotection circuit.
2 The protection circuit detected a wrongvoltage 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
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LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |
On LCD Payparticular attention at inverter and power board, power board can beinspected looking for bulged or leaking capacitors, then tested with amultimeter. The inverter is more difficult to test , there is need toread 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
SOURCE: Sony Trinitron Color TV KV-35V65 - No Picture, red light stand/by timer flashing
A reset won't fix this. The standby light should be blinking a repeated count with a 3 second pause inbetween. Post that count here. That will indicate the circuit/condition that is preventing the set from turning on.
Thanks,
Dan
Posted on Jul 18, 2008
SOURCE: sony tv model # kv36fs320 no picture sound is
check power supply. measure crt voltage on crt pcb at the tube nack.
Posted on May 15, 2009
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