PSU: Vestel 17PW07-2 041111 V2
Mainboard Vestel 17MB70-5P V1 050511
The problem of the TV is that it wont respond neither to the remote control nor to the button on the TV itself, and when its power cord is plugged in, it turns itself on, the red light begins to blink, at the fourth blink the screen turns on, shows white screen, and at the 12th blink the screen goes off again.
In the next cycles it blinks only 7 or 8 times and at the 4th or 5th blinking comes the screen on and after a few blinks goes off again.
A cycle lasts approx. 20 seconds.
I have measured the voltages on the PSU, all are fine, except 2.
http://postimg.org/image/fy61bfxd3/
On pin 14 (24v) i havent been able to measure voltage, on pin 13 (5vstby) i measured only 4,1 instead of 5v.
I`ve checked all the diodes on the board with the following results:
d111 484
d229 235
d308 355
d112 660
d109 630
d106 700
d226 200
d224 160
d223 160
d219 500
d215 330
d228 330
By all of them the current flew only in one direction, thats okey, but im not sure whether the diodes with values measured under 300 (ohms maybe) can be used further.
I`ve replaced some capacitors (15 pieces), except the bigger ones which i couldnt buy yet, but nothing changed.
I even uploaded a 1,5 minute video to youtube about the failure and the bizarre sound of the PSU.
click here to watch it
Could someone please help me further?
Mainboard Vestel 17MB70-5P V1 050511
The problem of the TV is that it wont respond neither to the remote control nor to the button on the TV itself, and when its power cord is plugged in, it turns itself on, the red light begins to blink, at the fourth blink the screen turns on, shows white screen, and at the 12th blink the screen goes off again.
In the next cycles it blinks only 7 or 8 times and at the 4th or 5th blinking comes the screen on and after a few blinks goes off again.
A cycle lasts approx. 20 seconds.
I have measured the voltages on the PSU, all are fine, except 2.
http://postimg.org/image/fy61bfxd3/
On pin 14 (24v) i havent been able to measure voltage, on pin 13 (5vstby) i measured only 4,1 instead of 5v.
I`ve checked all the diodes on the board with the following results:
d111 484
d229 235
d308 355
d112 660
d109 630
d106 700
d226 200
d224 160
d223 160
d219 500
d215 330
d228 330
By all of them the current flew only in one direction, thats okey, but im not sure whether the diodes with values measured under 300 (ohms maybe) can be used further.
I`ve replaced some capacitors (15 pieces), except the bigger ones which i couldnt buy yet, but nothing changed.
I even uploaded a 1,5 minute video to youtube about the failure and the bizarre sound of the PSU.
click here to watch it
Could someone please help me further?
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