Comments on: Fixing Internally Defect HDMi Chassis Connector On Philips 27 Inch Monitor

By: Albert van Bemmelen

Albert van Bemmelen — Mon, 23 Dec 2024 20:57:03 +0000

In reply to Audioman.

I suppose that indeed your Novatek chip got a defect indicated by the previous getting hot resistor. Maybe also caused by the likely previously defect voltage regulators you mentioned.
I guess it is best to swap the board with that questionable chip on it if you can find a cheap replacement board on eBay or other website? Or try to find what function that previously getting hot resistor has in the circuit to pinpoint to the culprit. Maybe that resistor had changed in value getting to low in resistance?

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By: Albert van Bemmelen

Albert van Bemmelen — Mon, 23 Dec 2024 20:46:50 +0000

I have no reason to think your c16 chip is equal to the mentioned C30ZH chip. Without datasheet it is hard to tell. Maybe if you have a service manual or schematic from your computer mainboard, you could use that to compare the chips with the in the above given link given to the service manual of my Philips tv?

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By: Audioman

Audioman — Sat, 04 May 2024 23:23:01 +0000

In reply to Albert van Bemmelen.

Hi, I have a problem with a Philips PC monitor model 273E3LHSB, the monitor at some point on stopped working and did not show signs of life. I opened the monitor and checked the PSU and the voltages were all correct, on the motherboard instead, I noticed that the R710 resistance of 5.1 ohm 2 Watt was very hot (143 C) then I decided to replace the two voltage regulators of 3.3V (U701) and 1.8V (U703) and the monitor came back on. the problem is that the image on the panel is distorted and therefore I can not understand what the problem is and how I can identify it. It may be that the Novatek NT68677UMFG control chip is damaged, but I don’t know how to test it. If anyone could help me understand the problem, that would be great, thank you in advance.

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By: Wally

Wally — Mon, 08 Apr 2024 03:20:31 +0000

I have a computer motherboard where a C30zH chip has gone bad on it. I see you listed the part number here and was just curious to see if the c16 chip is an equal replacement for the c30 chip? Do the numbers mean anything or are those production/ batch marks?

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By: Albert van Bemmelen

Albert van Bemmelen — Fri, 27 Oct 2023 14:40:05 +0000

Update: Today 27-10-'23 my Philips 27 inch monitor is back in action and like new again! Yesterday after carefully adding new tracks and pads with also using UV epoxy coating (the great UV substance with UV light that was mentioned in the article) I managed to restore all 18 broken off tracks. Which was a hell of a job! But I made it a lot easier to bend all ground gnd pins of the HDMi connector up, away from the board. So it was much easier to only solder all the signal wires onto the board plus the 5V track on pin18. Also pin14 that was not connected was bend up and left unsoldered. The 4 bend up gnd pins were together wired to ground. And pin 2 was also wired because all those bend up pins had no tracks to avoid shorting solder problems. And by carefully using only a few miniscule drops from the cap of the 10ml/cc UV tube by just using the point of a mini screwdriver covering all repaired solderconnections was a super success!

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By: Albert van Bemmelen

Albert van Bemmelen — Thu, 26 Oct 2023 04:13:44 +0000

In reply to Yogesh Panchal.

He sure is! And he no doubt uses tools and equipment that are quite expensive and priceless in these kind of circumstances!

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By: Albert van Bemmelen

Albert van Bemmelen — Thu, 05 Oct 2023 15:09:25 +0000

In reply to Mario.

I simply have no other option if I want to restore the use of the HDMi port on my 27 inch monitor. Also because the other video out ports are of lesser quality.

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By: Albert van Bemmelen

Albert van Bemmelen — Thu, 05 Oct 2023 15:06:12 +0000

In reply to Carlos Castaneda.

Maybe, but the pads below the 19 pins are still very close to each other and cutting those tracks wouldn't do much good either. Removing such a very strong solder mounted HDMi connector is always a big risk in these circumstances. But I probably still should have used my hot air solderstation gun for better providing heat on to the entire HDMi area instead.

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By: Albert van Bemmelen

Albert van Bemmelen — Thu, 05 Oct 2023 14:58:04 +0000

In reply to Imoudu.O.

I do not have or use Razor blades Imoudu. But I could have used kapton tape which is excellent in use by sticking on to the board and it is also perfectly heat resistant.
But I counted too much on the good effect of using low temperature solder which completely destroyed the pads to the HDMi copper tracks. In the meantime I now bought even lower temp 10gram Sn42bi58 138 ℃ solder which may work a lot better next time when needed.

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By: Yogesh Panchal

Yogesh Panchal — Wed, 04 Oct 2023 16:56:29 +0000

Good Job! Albert ,
Alex is Master in microscopic soldering & good quality of tools definitely make difference in quality work & without microscope it is very difficult to do this type of work.

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