My Polaroid tv FLU 2632 turns on but displays no signal. How do I get it to work

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Not that I can find.

my remote control will not work after changing the battery on POLAROID ORIGINAL LCD FLU-2632 TV REMOTE CONTROL please help

Try this!

http://tv.manualsonline.com/manuals/mfg/polaroid/polaroid_flm_flm2632.html

Having browsed the user manual I wonder if you plugged in the Sony BDV T57 Home Theatre System while the Polaroid FLM-2632 tv was powered down via the optical cable .
Then powered up the Sony BDV T57 Home Theatre System first and then powered up the Polaroid FLM-2632 tv
Maybe the Polaroid FLM-2632 TV has to detect that the Sony BDV T57 Home Theatre System is connected and powered up when the Polaroid FLM-2632 powers up. To activate its digital audio out ????
The note part about only being available only under HDTV (cable/air) mode. Might be the cause of your hassle also ?


DIRECTLY FROM THE USER MANUAL
source from
http://tv.manualsonline.com/manuals/mfg/polaroid/polaroid_flm_flm2632.html
"
? Connecting to Audio Receiver:
Use an audio cable to connect the audio receiver's audio LINE IN jacks to LCD TV's
AUDIO OUT jacks. ? Connecting to Digital 5.1 Sound System:
METHOD A:
Use an optical cable to connect the audio amplifier's OPTICAL IN jacks to LCD TV's
OPTICAL OUT jacks.
METHOD B:
Use a coaxial cable to connect the audio amplifier's COAXIAL IN jacks to LCD TV's
COAXIAL OUT jacks.
Note: Above mentioned function is only available under HDTV (cable/air) mode.
? Connect all AC power sources, before turning on the power switch of the LCD TV or
other connected equipment.
? Press the button on the remote to turn on the LCD TV."

You could try pressing the source button on the remote to see if that brings it up.

Also the TV may have got itself in a muddle. There will be a way to reset it to factory setting. If you can get into the TV's setup menu there ought to be an option buried somewhere to do that.

I used Mitsubishi code 0206 to activate my remote control for my Polaroid FLU 2632 tv

so simpo..

GE makes one of the best universal remotes, it will work on your TV.

Often when using a Sky box, one doesn't use the channel tuning feature of the Polaroid HDTV. Often one connects the Sky box to a component video input, and the Sky box does the tuning.

I hope that helps.
___________________________________________
Polaroid FLM-2632 Manual Download
Polaroid FLM-2632 Service Manual Download

Try 11498 or 1498 (for 4 digit remotes)