Philips 42pf9630/37a, Blink red LED 7 times, No Picture No Sound

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SOLVED: blinks the red light 10 times frequently - Sony Bravia ...

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Apr 24, 2018 - @hdcifix215 10 blinks apparently is not a real error code from Sony. The descriptor for that is "Watch Dog Timer used to track micro processors, ... 2 answers
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The red light flashing is indicating the error.
depending on the make and model of the TV, the duration of the flash and number of flashes determines the error code.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.
Counting of number of blinks to Philips TVs is entirely different to that of other brand TVs. It is not a direct count procedure. The site have details about how to count the number of LED blinks [Fault Codes] to Philips brand TVs are given; along with details of the faulty circuit location.

Physically disconnect the SU board and the SD board. (See precaution # 5)

Plug in the TV and turn it on.

Does the TV shut down and the power LED

blink 7 times?

Yes

No

Replace the Panel and the SU board.

(See precaution #3)

Reconnect the SD board only.

(See precaution # 5)

Plug in the TV and turn it on.

Yes

No

With the SU board and the SD board still disconnected, remove connectors SC2 and SC20 from the SC board (See precaution # 6)

Plug in the TV and turn it on.

Disconnect the SD board and reconnect the SU board. (See precaution # 5)

Plug in the TV and turn it on.

Yes

No

Replace the Panel, SD, and SU board.

(See precaution #3)

Replace the Panel and the SD board.

(See precaution #3)

Replace the SC board.

(See precaution #3)

No

Replace the D board.

(See precaution #3)

Does the TV shut down and the power LED

blink 7 times?

Does the TV shut down and the power LED
blink 7 times?

Sometime a no picture, no sound still has the power light or some other led blinking. The blinks might be an error code that will isolate the problem.

In general on LCD TVs with no picture, no sound, no blink code, the main power supply has failed. The capacitors weaken and when bad enough, damage the power supply.

If there is a blink code, the most, if not all of the power supply is OK and the blink code could point to the problem.

High voltage problem, better left to a pro, expect to pay around $300-350 Julio [email protected]

Problem is a bad audio IC esp if your are reciving 11 blink code
if it is a 5 blink code replace Crystal 1h00 On Ssb new part number is 24225430 1397

While I can't tell you what this particular code means I know from experience that power boards fail frequently commonly on those TVs. Do you hear a clicking of the power supply first on and then off after a few seconds?

There's a guy or a company on eBay that offers trade-in for faulty power supplys, you should check them out:
http://stores.shop.ebay.com/TechFetch

Search for 37'' Philips in the title or contact them to ask about it. Used to be $99 flat including return shipping.

7 blink error on that model is 8.6 volt error and generally caused by y main board. disconnect y main from power supply and if tv does not shut down and vs voltage comes up (test point on power supply) replace y main and both y upper and lower buffer boards as replacing one without other two could cause additional failures

did u cheak the input cables does it do it on dvd input as well as others ?