How can i open AKAI model CT2020 service mode

Akai AA-V401 Service Manual - Virtual Sounds Technology

http://www.vstservice.com > p-558-akai-aa-v401-servic...
Akai Service Manual with Schematics. This is part of a LOT of manuals we've uploaded for sale. Old Akai VCR's, Cassette, Open Reel Recorders, Receivers, ...
US$10.00
Missing: aaV401 ‎' Must include: aaV401

Free download Akai AM A401 Service Manual

https://www.audioservicemanuals.com > akai > 81941-a...
Read or download Akai AM A401 Service Manual PDF with 24 pages. No login, no charge and no limit.

AKAI AA-V401 SCHEMATIC ORIGINAL SERVICE REPAIR ...

https://www.ebay.com > itm
This is for a AKAI SERVICE REPAIR MANUAL. MODEL - AA-V401 SCHEMATIC. Manual is in Very Good Condition, Doesn't look like it was ever used.
US$13.94 · ‎In stock

https://service-mode.com/service-akai-9.html

If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.
NB: Please read and understand well, the instructions to enter the service mode, before you begin.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.
NB: Please read and understand well, the instructions to enter the service mode, before you begin. Be very careful. Note how to "EXIT" the service mode; after entering and adjusting data. This is very important.
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.

If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.
NB: Please read and understand well, the instructions to enter the service mode, before you begin. Be very careful. Note how to "EXIT" the service mode; after entering and adjusting data. This is very important.
Type in the brand name and type of your device, in the search box [at the top right] of the home page; to get the related posts easily.

Visit this site. " Electro Help ". Pull up older posts. Surf the site with patience.
Service modes to many popular brand TVs and other devices are given. Just Google for it.

Set the volume level to 'Zero' first, by pressing the volume down button by the front panel of the TV. Then press both volume down button on the front panel of the TV, and display button on the remote control simultaneously. Service mode window should appear. The is the common procedure to get into service mode to Akai TVs. The procedure may differ according to models. If you wish to get more details, check the site linked here. It has service mode entry procedure to many brand TVs, including many Akai models. http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by type in the model name to your set in its search box, or view it in Mosaic /Timeslide option.

you must check an open resistance( bad resistor ) coming from the power supply section going to the horizontal drive transistor collector pin.

I WANT AKAI TV MODEL NO- CT14BMMKIII SERVICE MODE

press (DISPLY) key on remote handset & S009 button on tv set,simultaneously SERV will be displayed on screen to indicate that tv is now in service mode now you can do what ever you want to do. good luck