The MZ12 Multivision Computer is made up of 3 component boxes
![TW-D611T TW-D611T](http://mz12gt.com/wp-content/uploads/2011/12/TW-D611T.jpg)
TW-D611T
TW-D611T (86116-24010) which is responsible for multiplexing the video signal together using
AN5315 and
AN5352 chips.
![TW-D603T TW-D603T](http://mz12gt.com/wp-content/uploads/2011/12/TW-D603T.jpg)
TW-D603T
TW-D603T (86010‑24010) which is the television tuner box.
![TW-D604T-T TW-D604T Top Board](http://mz12gt.com/wp-content/uploads/2011/12/TW-D604T-T.jpg)
TW-D604T Top Board
![TW-D604T-B TW-D604T Bottom Board](http://mz12gt.com/wp-content/uploads/2011/12/TW-D604T-B.jpg)
TW-D604T Bottom Board
TW-D604T (86112‑24010) which is the computer responsible for reading input from the ECU and converting it to the images and text which are displayed by the video signal box.