NEC NP-ME301W RS232 codes- Projectors - Page 43
H : On-Screen
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077. MUTE CONTROL Function: This command controls the mute of picture, sound and on-screen. Command: 02H 1AH 00H 00H 02H DATA01 DATA02 CKS (*3) Data Portion Contents DATA01 Setting items 00H : Picture 01H : Sound 02H : On-Screen DATA02 Setting Value 00H : OFF 01H : ON Response: At the time of a success 22H 1AH 01H xxH 01H DATA01 CKS (*1) (*2) (*3) Data Portion Contents DATA01 Results 00H : Normal 01H : Error Response: At the time of a failure A2H 1AH 01H xxH 02H DATA01 DATA02 CKS (*1) (*2) (*4) (*3) Supplement: * Sound mute is cancelled in the following cases: Input connector switching Video signal switching Volume adjustment 078-1. SETTING REQUEST Function: This command acquires the function information of projector. Command: 00H 85H 00H 00H 01H 00H 86H Response: At the time of a success 20H 85H 01H xxH 20H DATA01 .. DATA32 CKS (*1) (*2) (*3) Data Portion Contents DATA01 .. 03 Projector type