Av board jo47

I don't know your TV but I would say you can. If tv has audio out then there is not a problem. If not, check if there is headphone jack. If yes then you will need 3.5mm headphone to rca (chinch) adapter.

The main power supply regulator section circuit fault. 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. Pull up older posts.
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.
Search the site by type in the "brand name" to your device; [Exclude the model number], in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

My baird JO47 tv is stuck on standby - Digital TV - Streaming ...

www.tomsguide.com/forum/55998-4-baird-jo47-stuck-standby

Dec 17, 2012 - 4 posts - ‎2 authors
My Baird JO47 tv is stuck on standby and won't come off. ... I have a panasonic 50" TV it will not turn on no green light or standby red light ... Forum; my tv standby light keeps flashing blue on and off and won't switch on Forum ...

Baird JO47 Stuck on Standby ' Electronics Forum (Circuits ...

Hi,
Nothing on all inputs would suggest the Main AV board not processing signals, if all other functions such as volume, menu access, on and off operate normally the power supply board is probably functioning OK. Have a look at shop jimmy for an idea on price and availability for Mitsubishi LT-46144 Boards and spare parts:

TV Parts Universal TV Stands DLP Chips ShopJimmy

yes, you possibly have faulty inverter board,just replace it to fix the problem

You may try default phone and security code to remove restrictions.
ur defalt phones codes is 12345 or 00000 u can use it
Default 4 Digit user code: 1234 or 0000
Default 6 Digit Security code: 123456 or 000000

Type *#06# at the mobile screen to know IMEI no of your mobile.
send the IMEI no to me and i will reply you with unlocking code.
IF Problem not Solved So
Please New Software install in the Phone Problem will Solved

baird 47 code for sky remote

These are your codes,0117,137,221,371,218,220,236,100...Here is a link for directions, www.digitalsat.co.uk/skyremotecodes. hope this helps..

The most likely failure is the main power supply. You may be able to identify it with the following instructions:
Unplug your set overnight to allow potentially hazardous voltages to discharge, remove the back panel of the set so you can see the guts.
Look for a smaller board with larger parts on it; some cylindrical (capacitors), others block-like and relatively large (chokes and transformers).
You should also see a relationship between the board and the incoming AC.
Check the board for a label or if not present, a stamped-on number.
Call the manufacturer's service center with your TV model number and the number found on that board and inquire about repair/replacement costs; if both are offered, they won't be that much different.
If you must buy a new board, don't dispose of the failed one as there are smaller companies that can repair it for less than the mfr. and then keep it as a spare as this problem will likely arise again.

Unfortunately, the Magnavox name is owned by the Japanese Funai company which is known for poorly designed and not very reliable products.