From port D, the four-bit output goes to IC4 latch, resulting in 28 latched outputs ( in practice, 5 are not used) which are sent through open collector inverters to the circuit boards. Control signals also go to the function board for lighting the LEDsanbsp;...
|Title||:||Maintaining & Repairing Videocassette Recorders|
|Author||:||Robert L. Goodman|
|Publisher||:||TAB/Electronics - 1983|