AY-3-8500
The TV Master MK IV uses the AY-3-8500 integrated circuit (IC) by General Instrument Microelectronics. They were one of the pioneers MOS large-scale integration (LSI) microelectronic circuitry. It is a single chip solution for a pong game, which became very popular in 1977.
There were two versions of the AY-3-8500 IC. One was for a 625-line raster for PAL standard televisions, whilst AY-3-8500-1 was for a 525-line raster for NTSC standard televisions.
Pong Chip
This IC has six selectable games.
- Tennis
- Soccer
- Squash
- Practice
- Rifle 1
- Rifle 2
Pinout
PIN | Function |
1 | Not Connected |
2 | Vss (Ground) |
3 | Sound Output |
4 | Vcc |
5 | Ball Angles |
6 | Ball Output |
7 | Ball Speed |
8 | Manual Serve |
9 | Right Player Output |
10 | Left Player Output |
11 | Right Bat Input |
12 | Left Bat Input |
13 | Bat Size |
14 | Not Connected |
15 | Not Connected |
16 | Sync Output |
17 | Clock Input |
18 | Rifle Game 1 |
19 | Rifle Game 2 |
20 | Tennis |
21 | Soccer |
22 | Squash |
23 | Practice |
24 | Score and Field Output |
25 | Reset Input |
26 | Shot Input |
27 | Hit Input |
28 | Not Connected |
Rifle Games
Pin 26, and pin 27 are for the rifle games. It is possible to enable this functionality to make the games work as shown in the following sections of this article.
These ICs are hard to find these days, however now that everyone knows that this console has this chip, many people will get the console instead of making one. These consoles were mass-produced and sold throughout the world, however there are less and less every year.
This Article Continues...
Binatone TV Master MK IVBinatone TV Master MK IV Inside
Binatone TV Master MK IV PCB
AY-3-8500
Binatone TV Master MK IV Controls
Binatone TV Master MK IV Power
Binatone TV Master MK IV Packaging
AY-3-8500 Rifle Game Mod & Circuit