for RS232 sub board 9, 10 TTL U17, … 74 series Buffer and mux for CI Or, equivalent part FET U16 IRF7303 CI Power On/Off Or, equivalent part Connector U20 PIS2B1382 PCMCIA connector for CI 11 Audio DAC U31 UDA1334TS Audio Digital to Analog Converter 12 A/V Switch U33 STV6412A A/V switch for SCART and
