Insignia NS-19E320A13 LCD TV tuner issues

[binsonk]

This small Insignia LCD TV (NS-19E320A13) has a tuner which behaves oddly when the television starts cold. I put an old analog antenna on the TV before turning it ON for the first time in several months. Then I used the menu to scan for broadcast channels, both digital and analog. It found 3 channels, digital, and found no channels for for analog. Well, that sux, because the 3 channels were actually the same channel with three selections, 64.1, 64.2, and 64.3. I tried to manually tune for 2 very strong local stations, but nothing was found. After 20 minutes being ON, I tried to scan again, and it found 8 channels (including the 2 strong stations). I waited another 20 minutes, and it found 14 channels. After another 20 minutes it found 15 channels, and that is the most I can get. Why is it taking so long to find digital broadcast channels?

[mmartell]

Re: Insignia NS-19E320A13 LCD TV tuner issues

Maybe the supply to the tuner has bad caps. Check for obvious bulging ones first then use a hair dryer selectively to see if you can narrow where the heat has the most effect.

[vinceroger69]

Re: Insignia NS-19E320A13 LCD TV tuner issues

maybe try heating the tunerboard/psu up with a hair dryer for about 4 mins before you turn it on if it finds loads of channels straight away there maybe a bad component on that board

edit! above post beat me i was still typing.

[binsonk]

Re: Insignia NS-19E320A13 LCD TV tuner issues

Okay, say it is a bad tuner. Can it still operate as digital cable TV? (I no longer have a cable signal to test it. But I do have a D2A converter box.) As long as there is power to the TV, as is normal, perhaps the warm up won't be critical. I know this, no way do I have the skills or equipment to remove and install a tuner. Probably has at least 20 pins in close proximity. Why do designers place the caps so close you can hardly remove the tuner covers?

[binsonk]

Re: Insignia NS-19E320A13 LCD TV tuner issues

The TV was off for several hours overnight. When I turned it on, all the previously acquired channels were available. Reception-wise I am not getting a favorite channel that I know is broadcasting. It just so happens that there is an old T-type antenna available which extends up into the attic (much higher than current antenna). I have an ancient '2-wire to coax' adapter which I could use to connect to the digital TV. Would this T antenna be better than the RCA rabbit ears I am using now?