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Re: Sony KDL-40EX710 - Lightning strike and power surge
What voltage do you have on Pin1 of IC6802 and chassis and then on Pin4 IC6800 and chassis?Willing to help but I'm no expert.Comment
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Re: Sony KDL-40EX710 - Lightning strike and power surge
So the opto's should not be the problem.
Can you check that IC6800 Pin 5 is at 12V and IC6800 Pin 4 is at 9VWilling to help but I'm no expert.Comment
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Re: Sony KDL-40EX710 - Lightning strike and power surge
...Last edited by dick_barton; 06-13-2017, 10:54 AM.Willing to help but I'm no expert.Comment
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Re: Sony KDL-40EX710 - Lightning strike and power surge
I am really tired, Thanks all for helping me out, I will post updates when I fix this board
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Re: Sony KDL-40EX710 - Lightning strike and power surge
I have replaced the IC - CXA3809M => IC6501
Now the RED LED lights up and I have a 3 blink error code.
Can somebody help me please.Comment
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Re: Sony KDL-40EX710 - Lightning strike and power surge
Ah!! looks like the whole TV is bad... Checked the voltages again, There was no power going into the TCON board.. I jumped 12V to TCON now the Error code goes to 7.
Looks like a shot TCON Board. I am not sure what else I would have to change.. Is it worth changing it?Comment
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hi everyone,
my parents in law have seen their Bravia Sony LED 32EX600 TV set stop after a lightning strike. After being plugged to mains, it shows nothing no power LED on bottom left shines.
On the power PCB (GE3b, attached pic), I chacked the fuses and the only roasted one is R6536 : 0.47 ohms, 1/2W. After replacing it, I made some voltage measurement with ref to the chassis :
- the 450V/150uF capacitor voltage when plugged is normal at 394V
- from connector CN6150 (15 poles)
STBY normal 3.3V -> I shunted it to 3 (POWER ON) and 11 (BL ON) and unplugged...06-28-2023, 02:43 AM -
We had a lightning strike a few days ago really close to my house. My Samsung UN60EH6000 was on when it hit. Afterwards, the TV would not come back on.
I had repaired this TV a few years back by replacing the T-Con board. (The post I had on this is repair is here.)
When I turn on the TV, I don't get any start-up melody. The screen just dimly flickers around the edges.
Here is what I have checked.
On the power supply board, 14pin connector:
1 :12.7 Vdc
3 :12.7
5 :12.7
7 :12.7
9 :0
11 :5.
13 :5.... -
THE LIGHTNING:
This was a very close strike, blew a 15 amp breaker for all ceiling lights in home AND could smell ozone for a few minutes after strike.
Very close and probably a very strong EMP.
THE TV:
No standby LED. Some voltage from PSB (not totally dead).
But found a kit of ALL 4 circuit boards for $55.
At first thought, this will fix my TV.
But then lightning has the ability to totally fry semiconductors. Which would include any or all of the PCBs. However, the display is one big semiconductor and given... -
Hello Everyone.
This powerful amplified subwoofer doesn't make any sound after lightning striked near the house were it was plugged in.
It consists in :- a power board were the full H bridge class D amplifier and main power rails are located
- a preamp board (ref. F.01U.299.771) receiving 2 symetrical inputs(IN1, IN2), a digital chain (A-D converter -> Digital Signal Processor -> D-A converter) and a micro controler in charge (at least) of the human interface (lcd display and 1 rotating button)
human interface is working fine
Input levels are...01-23-2024, 10:21 AM -
Buenas mi nombre es carlos me uni al foro porque estoy buscando el schematic de una sony vaio pcg-41217u otras formas de escribirlo son 1p-0117j01-a012 mbx-237 numero de placa revision 1.2 o Sony VPCSB (MBX-237), en fin me gustaria y ayudaria un monton si alguien me puede dar dichi svhematic para hacer las mediciones de una laptop de la mencionada anteriormente(Sony VAIO PCG-41217U) con el fin de repararla dejo de funcionar solo prende el led de la bateria al pulsar el boton de power el disco empiesa a hacer ruido de actividad pero los leds del frontas no reflejan acividad y no enciende la pantalla....
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