Vizio P50HDM Keypad Resistor

[itelite]

I recently replaced worn out push buttons on the keypad/control (on the side of the TV, not a remote)

Anyway, i was using hot air and happened to knock one of the resistors into another dimension. The resistor controls the Pull up for the Volume Down button.

Does anyone randomly have this keypad and can measure the pull up resistors for me?

Short of this my plan is to sweep it with a POT to determine the correct value, but it would be infinitely easier to know what the value is.

Thank You.

[budm]

Re: Vizio P50HDM Keypad Resistor

Pictures of the board and P/N as printed on the board will get more help.

[itelite]

Re: Vizio P50HDM Keypad Resistor





i am looking for the value of the 3rd from the white connector.

[budm]

Re: Vizio P50HDM Keypad Resistor

RD3?
I thought you said it is blown away.

[itelite]

Re: Vizio P50HDM Keypad Resistor

Yes RD3. That is not my board but rather the same model in a somewhat decent resolution picture form the internet. Mine is indeed blown away.

[itelite]

Re: Vizio P50HDM Keypad Resistor

Tried to sweep with 100K Lin pot. Was able to simulate "Input" button at 68Ohm, "PIP" at 35Ohm, and "Power" at 785Ohm. Thus far, not able to get volume down though.

7Ohm - a service menu

[itelite]

Re: Vizio P50HDM Keypad Resistor

Figured it out. Swept around with a 1K Pot

110 Ohm to 140 Ohm is Volume down

14 Ohm shows the name of the current input

[freakaftr8]

Re: Vizio P50HDM Keypad Resistor

Good troubleshooting! Glad you figured it out