It starts on standby and when i hit power it turns on for about 5 seconds and shuts off and goes back to standby...i need to know whats the problem..please
SOURCE: Sony Big Screen TV Not Powering On
This looks like a problem with the High Voltage or switching power supply section of the TV set. What you need to do is to measure the voltage from the HV transformer to the Anodes of the CRTs with a high voltage probe, and check the voltage output of the switching power supply. What may have happened is a component may have shorted out causing an over-current condition with is triggering the shutdown circuit (These are the relays you are hearing). I would check the Horizontal Output transistor, and the components in that section of the TV.
In addition check the voltage test points on the HV / Horizontal and switching power supply board. This will determine if the section is working or not (most likely not). Make sure you have a schematic, and multimeter and a high voltage probe.
I hope this helps,
Thank you,
Shuttle83
SOURCE: TV doesn't turn on
I bought a LG 39" flat screen 6 months ago. TV has been working great until this morning. Power comes on for about 5 seconds and then cuts off. Have checked all connections and have unplugged from wall to reset, NOTHING!! And a brand new TV!! Any help would be great!
SOURCE: Intermittent lamp turn off
your lamp is fried just change it i did the same to mine and it works just like a charm
SOURCE: I have a 51 in. Sony model kp-51ws520. when I turn
Ck small blue capacitor next to hori output Transistor 2k volts they have been known to go Bad, if its OK replace Both of your STK ICs STK392-110s use 180s Mats has them 1-800-628-1118
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