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Sony KP-46WT520 Projection TV no picture I have the service manual' At first I had 9 blinks' so I replaced the two diodes in the G board. Now I got 4 blinks and again no picture' indicating No vertical deflection' So I replaced the vertical Ic still the same with 4 blinks and no picture'. Any Help Out There folks ? Old tube tech

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I clipped the d3901 diode on the g board and it powered right up!

Posted on Jan 24, 2010

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Posted on Jan 02, 2017

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Tv wont turn on but blinks 9 times again and again


9 blinks is a ZCD error code (zero crossing detection) which means it is a bad g board. I had the same problem with this tv and have yet to fix it cause you cant find the board you need anywhere and most suppliers have boards that they fix themselves which only work for a month or 2 and then die. but you need to replace Replace D6301 on "G" board and d6116, d6117 i use 1n4148 for the little smt diodes, d6301 nte116 should suffice
it will be those few diodes and 15-20 caps on the am board if you choose to fix it yourself. here is a manual that lays everything out for you if you choose to fix it yourself. click here for repair manual
if you need further assistance please let me know and i will be glad to assist you from there. thanks and good luck

Aug 26, 2010 | Sony KP-46WT520 46" Rear Projection...

2 Answers

TV won't turn on, standby light just blinks 9times off and on


There is some problme in G Board (power supply board) in your Sony KP-46WT520 tv that is why standby light blinks 9 times.
If you are handy with electronics stuff repair and can test/ replace parts in circuit board then let me know to provide you more technical info to fix tv problem.

Feb 03, 2010 | Sony KP-46WT520 46" Rear Projection...

1 Answer

No sound, no picture but timer srandby light is


If the stnadby light blinks 9x, there is a leaky diode in the G board(5Volts standby circuit) causing the problem. I don't have the service manual but I remember it's the D6301. To make it sure check all 8 diodes including the one in zero detection circuit(all in G board). Hope this helps :)

Dec 25, 2009 | Sony KP-46WT520 46" Rear Projection...

1 Answer

Sony kp-46wt520 blinks 9 times


you can use basic power supply diodes ecg 125s or diodes rated at 60 herts at 2.5 amp. these type of diodes are common to alot of power supply diode bridges and if you have any junk electrical boards then you could borrow them used, don't worry they will last longer than the original new ones which were not very efficient from the start.

Sep 07, 2009 | Sony KP-46WT520 46" Rear Projection...

1 Answer

Sony KP-46WT520 TV won't come on.


That is a diode in the sub power supply, it is a small board with only a few parts on it to the left of the d board, for the zero crossing detector. D6301 sony part number 6-500-567-21

Sep 02, 2009 | Sony KP-51WS520 51" Rear Projection...

1 Answer

9 blinks


D6117- Change switching Regulator on G board you can also do Self-Diagnostic Mode Press display ,5 . vol- ,power. this should turn set on and show other codes telling you what else maybe wrong. TO Remove codes and clear back out Press display,5,vol+,power Now Press 8 and Enter.

Jan 05, 2009 | Sony KP-46WT520 46" Rear Projection...

1 Answer

KP-46WT520


IC8002 # 670581001 on D board .Ater replacing 3 diodes how many times does it blink now?

Jan 03, 2009 | Sony KP-46WT520 46" Rear Projection...

1 Answer

Sony KP-46WT520


Replace Diode 6301 and D6116,6117

Nov 21, 2008 | Sony KP-46WT520 46" Rear Projection...

2 Answers

10 flashing lights then 9


make sure it is 9 blinking it may be 10

Aug 15, 2008 | Sony KP-46WT520 46" Rear Projection...

3 Answers

KP-46WT520 46 in.


Either IC708 is faulty on the A board or the two pico fuses are blown on the A board PS701 and PS702

Jun 25, 2008 | Sony KP-46WT520 46" Rear Projection...

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