Sony KDL-55EX640 (630) DEAD SET

**junkmale172** · 05-01-2015, 09:08 PM

Re: Sony KDL-55EX640 (630) DEAD SET

thanks again, i will try to find a main board (fingers crossed) and see what happens

**pay** · 05-13-2015, 02:00 AM

Re: Sony KDL-55EX640 (630) DEAD SET

Hi there anyone knows about Sony KDL-55EX640 power supply, I have a problem finding ZD904 Valu it shows on the Zener Diode NZ 13B is that mean 13V ?, Thanks to you Guys i was also looking for the Value of IC901, I have Ordered ICE2QR0665Z, Any help will be appreciated, Thanks

**t4796** · 05-13-2015, 04:42 AM

Re: Sony KDL-55EX640 (630) DEAD SET

13v zener i think. as for ic901 number, should be same as my ic901 ice2qr0665z, was it too damaged to read the numbers off the chip?

**t4796** · 05-15-2015, 08:35 AM

Re: Sony KDL-55EX640 (630) DEAD SET

i got my hands on another power supply dps-195ap-1.

surprise, there actually WERE two zener diodes in parallel in the original damaged location on my board.

i'll desolder them soon and see what values they are.

**pay** · 05-19-2015, 09:29 PM

Re: Sony KDL-55EX640 (630) DEAD SET

Originally posted by t4796

13v zener i think. as for ic901 number, should be same as my ic901 ice2qr0665z, was it too damaged to read the numbers off the chip?

I got the IC 901 and replaced it and the Zener diod as well, But still don't have any volts on IC 901 what's the Value of IC 902, All I see on it is S101 / 1145, What is the Value of the IC please I have been researching online for days still couldn't find anything.

**pay** · 05-19-2015, 09:31 PM

Re: Sony KDL-55EX640 (630) DEAD SET

I got the IC 901 and replaced it and the Zener diod as well, But still don't have any volts on IC 901 what's the Value of IC 902, All I see on it is S101 / 1145, What is the Value of the IC please I have been researching online for days still couldn't find anything. what's the value of the IC 901, Any help will be appreciated.

**t4796** · 05-19-2015, 09:42 PM

Re: Sony KDL-55EX640 (630) DEAD SET

S101 in1m101-t6g st9s101-t6g.

**pay** · 05-20-2015, 08:41 PM

Re: Sony KDL-55EX640 (630) DEAD SET

Thanks t4796 for the Replay i checked the Volts ou but i dont get any outputs 0Volts no 3.3v, i had open pin of t901 before i fixed it, now i have 14v on IC 901 but no Output any Idea what it might be causing no 3.3V, I have no standby light or any thing in panal nothing blinking, whats the Main volt should i look for 12 or 24 ? in which output ? THanks

**rievax_60** · 08-10-2016, 04:39 AM

Re: Sony KDL-55EX640 (630) DEAD SET

I have a DPS-195AP with damaged parts.
I need help with identifying IC601, R606, R605 and R618 please.

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**t4796** · 08-10-2016, 05:38 AM

Re: Sony KDL-55EX640 (630) DEAD SET

Hi Mate,

Best I can do tonight.

IC601 = ICE2QS03G - Infineon
R605 = 69Y 5.11 ohm
R606 = 51D? 332k ohm?
R618 = 30B 2k ohm

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**rievax_60** · 08-10-2016, 06:03 AM

Re: Sony KDL-55EX640 (630) DEAD SET

That gives me a better idea.
R606 looks like 01S 10 ohm
R605 69Y 5 ohm
R618 30B 3K

It is a bit odd that other 10 ohm resistors are marked 01X like R601.

**rievax_60** · 08-10-2016, 04:02 PM

Re: Sony KDL-55EX640 (630) DEAD SET

Originally posted by rievax_60

That gives me a better idea.
R606 looks like 01S 10 ohm
R605 69Y 5 ohm
R618 30B 3K

It is a bit odd that other 10 ohm resistors are marked 01X like R601.

My mistake, R618 30B would be 2K.
R606 still bothers me. 10 ohms seems right for the Gate drive circuit. The puzzle is that other 10 ohm resistors are marked 01X
instead of 01S.

Extra: Maybe R606 should read 510 which would mean 51 ohms. This would make sense also because it is the ON drive current that usually becomes much higher that OFF drive current and needs to be scaled back. The Gate current tends to become asymmetrical when the the drive voltage is more that double the Gate plateau voltage.

**t4796** · 08-10-2016, 11:05 PM

Re: Sony KDL-55EX640 (630) DEAD SET

I'm pretty sure of the values in my initial post apart from r606. I'll measure across those two parallel resistors/diode. The parallel figure of those two should confirm if it's 51D or 510.

**t4796** · 08-11-2016, 07:04 AM

Re: Sony KDL-55EX640 (630) DEAD SET

It's 510 = 51 ohms.

**rievax_60** · 08-11-2016, 07:17 AM

Re: Sony KDL-55EX640 (630) DEAD SET

Ok, thanks for confirming that. Ill order some bits now.

**rievax_60** · 09-12-2016, 12:09 AM

Re: Sony KDL-55EX640 (630) DEAD SET

Originally posted by t4796

It's 510 = 51 ohms.

Thanks again for your help. It all worked out well.

**rievax_60** · 06-18-2017, 08:01 PM

Re: Sony KDL-55EX640 (630) DEAD SET

Originally posted by t4796

S101 in1m101-t6g st9s101-t6g.

Has anyone been able to find this part for a reasonable cost?
One Alibaba seller has responded saying that it is out of stock.

**vikivng** · 04-12-2019, 07:34 AM

Re: Sony KDL-55EX640 (630) DEAD SET

Hi guys,
can anyone tell me about this component circled.?
I just managed to fix one these boards that had power surge but theres a hum when tv is on.
This component is short and need to replace it but there are no markings..thnx alot.

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**vinceroger69** · 04-12-2019, 08:11 AM

Re: Sony KDL-55EX640 (630) DEAD SET

Originally posted by vikivng

Hi guys,
can anyone tell me about this component circled.?
I just managed to fix one these boards that had power surge but theres a hum when tv is on.
This component is short and need to replace it but there are no markings..thnx alot.

The part marked is a ferrite bead it will read short circuit

**vikivng** · 04-12-2019, 02:22 PM

Re: Sony KDL-55EX640 (630) DEAD SET

Originally posted by vinceroger69

The part marked is a ferrite bead it will read short circuit

Yes thank you.
My further research alerted me to this.
The buzzing seems to be only audible when very close to the tv and the back is open.
So is it a fact that this buzzing is normal.?
Very happy with this one.
Awesome forum guys.

Sony KDL-55EX640 (630) DEAD SET

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