First, try to purchase a replacement remote, online can be searched using https://www.google.com
Second, the question asked on FIXYA in 2011 had the following recommendation:
"I have both lost my remote and activated the child lock on my Sanyo LCD-24K40. How do I deactivate the lock without the remote?Posted by thomasr518 on Jun 18, 2011
AnswerNorman Skinner Master
Most TVs will have a "Press for 5-10 seconds" unlock function.Usually it's holding the power button that unlocks it, but if that doesn't work, try all the other panel buttons in the same manner."
If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Unlock procedure and to override the password lock of many popular brand TVs and other devices are given. Search the site by type in this key phrase "How to unlock television"; in the search box at the top left of the display window, to get gathered related posts.
SOURCE: I have both lost my
Most TVs will have a "Press for 5-10 seconds" unlock function.
Usually it's holding the power button that unlocks it, but if that doesn't work, try all the other panel buttons in the same manner.
SOURCE: SANYO LCD 24K40 TV instead of Red or Green the power indicator display Amber color
press the helpful button,
the amber light may be for stand by or sleep mode, go into your tv setup and check that these are turned off
SOURCE: LCD-24K40 SANYO NO POWER
Fault to the main power supply regulator section. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
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