Question about Proscan 19LA25Q 19 in. LCD Television

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When I turn on tv, green light comes on and there is a clicking sound but no picture..is that the power supply as well?

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  • Jeremy Ketcham Nov 06, 2010

    Actually after looking at my manual its model 19LB30 QD. It does not flash on at all..the green light comes on and the speakers make a faint popping sound (like when the tv used to turn on but over and over) for a minute or so.

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  • 11,361 Answers

This Proscan 19LA25Q has no relay to make any clicking sound that I can think off. The common problem with this model is the fail backlight inverter board. Did you see the screen flashes on for a second? You should also check the output voltage of the AC adapter, it should be 12vdc with load. Check the surface mounted fuse on the inverter board (this board is really hard to find).



Basic LCD monitor and LCD TV troubleshooting guide:

http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV, Monitors, Caps : http://s807.photobucket.com/home/budm/allalbums

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitor kits: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find.

Posted on Nov 06, 2010

  • 1 more comment 
  • Bud Martin
    Bud Martin Nov 06, 2010

    Ok, your model does not use AC adapter, so it may have a chance that there are problems in the power supply section. That will be the first place to look.

  • Jeremy Ketcham Nov 06, 2010

    and the power supply..that would be replacing the power cord and the ac adapter box?

  • Bud Martin
    Bud Martin Nov 07, 2010

    Please send me the pictures of the inside of the TV so I can tell you more, budmrtn@aol.com

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