B power supply

The power supply provides all necessary game power as shown in Figure 4-3.

DC is rectified and filtered in the power supply assembly and regulated to a stable + 5 volts DC by the LM323 on the game PCB. The regulated +5 volts DC is distributed throughout the PCB to power all logic circuits (see Figure 4-4).

The game PCB receives an unregulated + 10 volts DC at pins B and 2 of the PCB edge connector. The + 10 volts

The unregulated +10 volts DC also powers the LM324 audio amplifier circuits in the audio circuitry.

15 -""C^ Kip-ยป * fLwt - M^K *re KM tu AI. 5

Figure 4-4 Game PCB Power Distribution (Part of Game PCB 034268-XX A)

Was this article helpful?

0 0

Post a comment