My tv blinks about 5 minuets and after that working properly.

It is better to buy a copy remote for that particular television. I wrote this

https://www.fixya.com/support/r29872378-universal_remotes_no_facsimile_remote

Your details for Universal

Remote Control Codes For SONIQ TVs

https://codesforuniversalremotes.com > remote-control-...
Soniq TV 4 Digit Remote Codes · 1. Turn on the TV. · 2. Press and hold the TV and SEL buttons simultaneously for 3 seconds. · 3. With the button lit, point the ...

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Remote Control Codes For SONIQ TVs - Universal remote ...

https://www.directutor.com > content > remote-control-...
Programming Soniq Remote control · 1. Turn on the TV. · 2. Press and hold the TV and SEL buttons simultaneously for 3 seconds. · 3. With the button lit, point the ...

Soniq Universal Remote Codes & Program Instructions

https://universalremote.codes > soniq
Jan 25, 2021 - Soniq Universal Remote 4 Digit Codes · 1473 · 0178 · 0180 · 0003 · 0092 · 0045 · 0019 · 0030 ...

Hello Graham,
Here are 2 links to your tv manual. Click on the Soniq link, it will give you the opportunity to enter the model number of your set. Just write it in there Without the "au" .
On the results you will see 2 manuals. Click "View Manual" on both (separately) and you will be able to do it. The manualslib link is complementary. Good luck, JP
https://www.manualslib.com/manual/1104333/Soniq-E42s14a.html#manual
https://soniq.com/au/support/product-manual

If it’s not found at the end in the settings menu of the tv, unplug the tv for one minute and plug it back in. Some TVs go back to initial default after this.

try these, i couldn't narrow it down more srry :(
Soniq TV 4 Digit Remote Codes 1473
0178
0180
0003
0092
0045
0019
0030
0056
0032
0047
0054
0060
0039

SONIQ LCD TV REPAIR Blank flickering screen Energy ...

? 1:32
https://www.youtube.com/watch?v=FUqdi7lwmcE
May 29, 2013 - Uploaded by WastedOne2
Fix ya Soniq Tv once loaded up hit menu button then channel + then ... SONIQ LCD TV REPAIR Blank flickering screen Energy Saving Mode Issue ... Easiest TV repair - How to Fix Power [TV turns off, freezes, or won't turn on] ... Common easy LCD TV fix: bad picture screen rainbow colors - Duration: 4:04.

No Image & Blank Black Screen Flashlight Test - YouTube

? 5:56
https://www.youtube.com/watch?v=xUzCLgoSPGM
Sep 15, 2014 - Uploaded by ShopJimmy.com
LCD & LED TV Repair - No Image & Blank Black ScreenFlashlight Test - How to Fix LCD & LED TVs ... Most LED TVs will have a t-con board, a power supply board, a main board and an LED ..... SONIQ Australia 1,718 views.

Soniq PT42SH plasma TV power on. No back light and no ...

Here is a good site for Soniq spares if yo know the part number:
http://soniq.com/au/spareparts/
Also eBay can be a good source for parts such as PCBs and they can be much cheaper than from the manufacturer.

http://www.goodgearguide.com.au/review/soniq/23in_hd_led_lcd_tv_combo/532195/ your problem is there

To play the files in full screen, press the Play button (labeled TEXT) instead of the OK button.