With in 5 minutes after tv is turned on the screen starts to flicker
My proscan did this. I took off the back. Spotted the buldged capacitor. Went to Fry's to find a replacement. They didn't have one but they referred me to someone down the street. Called, he had it. Cost like 2 bucks. Got a soldering kit for 15 bucks. Removed and replaced. And it's like brand new again! 4 years later, the main board is going out :/ that's not so cheap.
My proscan did this. I took off the back. Spotted the bulged capacitor. Went to Fry's to find a replacement. They didn't have one but they referred me to someone down the street. Called, he had it. Cost like 2 bucks. Got a soldering kit for 15 bucks. Removed and replaced. And it's like brand new again! 4 years later, the main board is going out :/ that's not so cheap.
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SOURCE: Proscan 26LA30Q-screen will not turn on
This might help you
Proscan 19LA25Q 19" LCD HDTV at Crutchfield.com
Proscan 19LA25Q 19' LCD HDTV: Detailed Info, Features and Specs, and Photos. ... Instruction Manual; Product Registration Card; Limited Warranty Card ...
www.crutchfield.com/ISEO-rgbtcspd/App/Product/Item/Main.aspx?i=68319LA25Q - 46k
SOURCE: My proscan is buzzing and pix is flickering when the power is on.
I found this solution on another review, hope it works
Model Number: Proscan 26" LCD HDTV w/ Built-in DVD Player26LB30QD
"pro: good price, TV picture is clear and DVD player is compatible well.
con: sound noise
There was hum when I first turned the TV on, then I followed these instructions (found it from other review) to fix the hum issue:
1. Turn tv on
2. Input mode should be tv
3. Turn volume to zero
4. With remote enter 9 8 7 6
5. A menu will appear on left side
6. Arrow down to backlight and with right arrow key move number from 81 to 83, press menu button twice,
7. Turn up volume and listen if hum is gone."
It works,no hum."
SOURCE: My Picture started to flicker
hi,
One of the many reasons could be the power supply
PROSCAN 40LD45Q LCD TV POWER SUPPLY AYL400201
these may look like these
sample image:
Options :
One may have to open up the TV and check:
( Before ordering )
for possible bad components
( and board confirmation If it is the same on the link )
like for visual, capacitors in orange circle
If there seems no bulge or swelling capacitor,
then Voltages should be measured ( yellow box )
How to use a multimeter
If the initial ( standby voltages like 5V ) are gone
then these board should be replaced or
properly checked.
Although there are still fuses on the power supply
Troubleshooting
These power supply have
Transistors
and MOSFET
How to test MOSFET
There could be other causes but let us start from the
power supply first.
SOURCE: I have a 42" Proscan
That sounds like either bad T-CON board or main board, need real in-depth troubleshooting.
You can the parts here:
http://www.shopjimmy.com/catalogsearch/result/index/?q=Proscan+42LED55SA+&stock=all
I hope it is still under warranty.
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
SOURCE: My Proscan 42la45h has been flickering when turned
we had a tech out. replaced main board at suggestion on phone diagnosis. NOPE. tech tested and the entire TV needs to be replaced. still waiting
I'm sorry that the picture on the TV has constant flickering. Please follow the troubleshooting steps and check the operation:
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