Panasonic tx47as650b no reaction to remote.

[vikivng]

Hi guys,
Id like some input on this issue if possible.
I picked up this tv with no backlights.
After the repair of the backlights the remote sensor on the tv doe not seem to accept any commands from the remote.
This doesnt seem like a common issue.
I have attached a pic of the remote sensor module.
Any ideas pls.?

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

How can I check to see if this is faulty.?

[petehall347]

Re: Panasonic tx47as650b no reaction to remote.

is the remote itself working ?

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

Hi
thnx for replying,
I have tested the tv with two different genuine panasonic remotes.
I actually have only tested by observing the ir light through a camera lens.
Brand new batteries have been put into both remotes.
I currently dont have another panasonic to test them with but theyre almost new.
Is this a relatively rare problem.?

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

Id be surprised if two genuine remotes would be at fault?

[petehall347]

Re: Panasonic tx47as650b no reaction to remote.

if you see it with a camera its working . does the tv acknowledge you pressing remote ? not sure if it should flash or not though .
am wondering of you didn't plug the wires in properly or one broke maybe .

[budm]

Re: Panasonic tx47as650b no reaction to remote.

1) So was the remote function work before fixing the backlights issue?
2) No bent pins and connectors are put back in place properly?
3) What Voltage testing have you done on the remote receiver board?
4) Can we see straight shots pictures of both sides the remote receiver board?

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

Really appreciate the responses.
Ok,
I got the tv without the remote and had no idea if this function worked before.
I cant see any bent pins.I actually didnt even touch this connector when I fixed the backlights.
I dont know how to remove the board from this case.Anyone knows?
I have attached pics of the front but have no access to the rear.
I have not tested voltages. This actually the first time I have ever come accross this issue.

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

if you see it with a camera its working . does the tv acknowledge you pressing remote ? not sure if it should flash or not though .
am wondering of you didn't plug the wires in properly or one broke maybe .

Hi, the tv doesnt seem to acknowledge any input based on any change in the led or slight dimming of the light.

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

Ok I got the tiny board out.There are no contacts on the back of the board.

[dick_barton]

Re: Panasonic tx47as650b no reaction to remote.

You have a few 0 ohm resistors that could be checked out. VCC is printed on the board so there must be a test point there.

[nomoresonys]

Re: Panasonic tx47as650b no reaction to remote.

Did you try working the tv with the button board, the one with volume up down etc. on the tv itself if equipped?

[nomoresonys]

Re: Panasonic tx47as650b no reaction to remote.

Did you try a universal remote, I know I have several samsung remotes and seems like not 2 of them will work every function of a different model, unless you mean you have the exact remote for that exact model tv.

[budwich]

Re: Panasonic tx47as650b no reaction to remote.

not sure if another model reference info provides any clues but maybe this portion might.

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

Thnx guys,
I have taken some voltages at the connector. Standby and full power on respectively
I have numbered the pins .

pin 7=0v/1.9v
pin 6=1.8v/0v
pin 5=3.2v/3.2v
pin 4=0v/3.1v
pin 3=0v/3.2v
pin 2=0v/0v
pin 1=3.2v/3.2v

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

Did you try working the tv with the button board, the one with volume up down etc. on the tv itself if equipped?

Hi,
all the buttons on the tv itself work fine.

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

Did you try a universal remote, I know I have several samsung remotes and seems like not 2 of them will work every function of a different model, unless you mean you have the exact remote for that exact model tv.

Hi,
I dont have the exact remote for the exact model no.
I do have 2 genuine Panasonic remotes and no buttons work for any type of input.

[vikivng]

Re: Panasonic tx47as650b no reaction to remote.

Do these voltages suggest anything obvious pls?

[nomoresonys]

Re: Panasonic tx47as650b no reaction to remote.

IR module testing there, if voltage changes module is ok: https://www.youtube.com/watch?v=QmCwSA5u2H8

[nomoresonys]

Re: Panasonic tx47as650b no reaction to remote.

IR module there if yours is bad: https://www.ebay.co.uk/itm/IR-RECEIV...gAAOSwPvFdImsR