SOURCE: my Broksonic ccvg-4500 wont power up
There may be a problem with the internal power supply of the TV. A blown, leaking or swollen capacitor perhaps. Check also for burnt parts. The power supply circuit is the first circuit after the power chord. If there are none found, inspect the rest of the circuit.
SOURCE: I have owned my Broksonic CCVG-3276 since October
Ur LCD inverter backlght board is dead.Replaced this board will get ur picture back.It a long board in shape.Tries Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter board for the replacement.
SOURCE: I have a Broksonic ccvg-3285. It is a 32" LCD +
You may have 24vdc power supply problem, bad backlight inverter board/s, main board not sending out signal to turn on the 24vdc supply and the backlights board, bad T-CON board.
Please try and read the link below to get more understanding.
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Basic LCD monitor and TV troubleshooting guide:
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 pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Testimonial: "This information seems key and i will revise the device considering this information.. thank you so much. i will check all of this as soon as i can. "
SOURCE: broksonic 19 inch CCVG 1935 - no sound, no picture, just a blue screen
Blue screen means either no signal (if unit has rear connections hook a DVD etc to one and go to that input and see if it works) Or the blue may mean set is in shutdown----5 months old and it should still have a warranty?
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