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===VA3[PC BD MD2 VA3 USA HAL]=== {| border="1"|+NTSC Model 2 VA3 IC's|-| IC# || Brand || Name || Description || Documentation|-| IC1 || Motorola || MC68000FN8 || Processor || <center>-</center>|-| IC2 || Hitachi(?) || 651632DFP-15 ||512K (32K X 16-bits) Pseudo-SRAM |||-| IC3 || ? || ? || ? || <center>-</center>|-| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || <center>-</center>|-| IC5 || ? || ? || 64K (8K x 8-bit) SRAM || <center>-</center>|-| IC6 || Sega || 315-5660 || VDP and IO chip all-in-one. || <center>-</center>|-| IC7 || OKI || M54C864-80 || 512K (64K x 8-bit) VRAM || <center>-</center>|-| IC8 || ? || ? || ? || <center>-</center>|-| IC9 || SEGA || 315-5684 (Rohm BA6166FS) || SOUND NETWORK / HEADPHONE AMP || <center>-</center>|-| IC10 || ? || ? || ? || style="text-align: center;"| -|-| IC11 || Samsung || KA2195D || RGB Encoder || <center>-</center>|-| IC12 || ? || 7805 || +5V Voltage Regulator || <center>-</center>|}
===VA4===
