How to operate a 24V dc 3 amp load from 24V dc 100 amp source?

When the TV goes dark, check the back lights is still on or not.

1. If the back lights are still on, mostly the problem is the T-CON board.

2. If the back lights are off, test the 24V DC voltage, back lights on & Dim control voltage on the invert board.
a. If the 24V is not there, the problem is the main power supply,
b. If the 24V is there, also the back lights on voltage is over 3.0V DC, the Dim control voltage is over 2.8V DC, the problem is the invert board,
c. If the back light on & Dim control voltage are lost or low, the problem is the Main board.

many shops and stores provide this.. if you talk to a local elecrician i am sure he is able to obtain it for you, or you can do a simple google search witch will give you many alternatives. following are a few i found by a quick search


Solid State Relay 40A 3 32V DC Input

60A AGT SSR Solid State Relay 3 32V DC 24 380V AC 24V 380VDC Newegg com


Aliexpress com Buy 1pcs SSR 100DA 100A Solid State Relay Module 3 32V DC...


if none of these fit your requirement. there are cheap and easy ways to drop the voltage across the coil. so you may use a 24v version if you do

Check this link below:
http://www.lcdpayless.com/productpage.php?productId=5441

Specification of Protron pltv-32 lcd ac adapter:
Output Voltage: 24V and 12V Volts DC
Amperage: 6 A and 3 A Amps

1) You need to look at the output current rating (AMP) of this AC to 24dc adapter, this 24vdc adapter is a regulated switching power supply that will maintain 24vdc output up the maximum current rating and also has shutdown circuits if the over current draw is detect and also if the output voltage goes up beyond 24vdc to protect the load (TV).

2) To use 12vdc to 24vdc DC-DC booster, it should have the following spec:

A) The output current rating should be at least 20% higher than the load requires to give its head room.
B) It must have regulated output that will maintain the 24vdc when the input (12vdc) will vary from 10vdc ~16vdc or higher since your batteries will not maintain exact 12vdc all the time.
C) It must have good protection circuits that will protect it self from reverse polarity connections, shorted output protection, over voltage output protection.
D) It should provide AC ripple spec on the 24vdc output, it should be in the milli-volt range (you will always get AC ripple riding on top of DC when you rectify the AC into DC).

These are the minimum requirement for your DC to DC booster, which you need to protect your TV and your motor home from burning down.
I hope I explain it OK to you.

Please leave rating if it helps.

Basic troubleshooting guide here:
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
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, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

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