diff --git a/AVR Working Controller/AVR.cpp b/AVR Working Controller/AVR.cpp
index 8c2c06f..ed70c6d 100644
--- a/AVR Working Controller/AVR.cpp	
+++ b/AVR Working Controller/AVR.cpp	
@@ -244,7 +244,7 @@ static int serialQueueCount = 0;
 // @param[in] len is the count of bytes in the message
 // @returns false if the queue (which is a fixed size) is full.
 //
-bool ProcessSerialQueue(const uint8_t *p = NULL, uint16_t len = 0);
+//bool ProcessSerialQueue(const uint8_t *p = NULL, uint16_t len = 0);
 
 
 // ProcessSerialReceive
@@ -295,12 +295,12 @@ const UserCmd_T UserCommands[] = {
 	{ 'm', "Vol 1 UnMute",		{"\x02" "07EA3" "\x03", 7} },
 	{ 'O', "OSD Test Message",  },
 	{ 'T', "Tuning freq rqst",	{"\x02" "22000" "\x03", 7} },
-	{ 'Y', "Main Vol rqst",		{"\x02" "22001" "\x03", 7} },
+	{ 'Y', "Zone 1 Vol rqst",	{"\x02" "22001" "\x03", 7} },
 	{ 'y', "Zone 2 Vol rqst",	{"\x02" "22002" "\x03", 7} },
-	{ 'U', "Input Name rqst",	{"\x02" "22003" "\x03", 7} },
-	{ 'u', "Zone 2 Name rqst",	{"\x02" "22004" "\x03", 7} },
-	{ 'I', "Zone 2 Vol rqst",	{"\x02" "22005" "\x03", 7} },
-	{ 'i', "Zone 2 Name rqst",	{"\x02" "22006" "\x03", 7} },
+	{ 'U', "Zone 1 Input rqst",	{"\x02" "22003" "\x03", 7} },
+	{ 'u', "Zone 2 Input rqst",	{"\x02" "22004" "\x03", 7} },
+	{ 'I', "Zone 3 Vol rqst",	{"\x02" "22005" "\x03", 7} },
+	{ 'i', "Zone 3 Input rqst",	{"\x02" "22006" "\x03", 7} },
 	//{ 'J', "Dual Mono - Main",	{"\x02" "07E93" "\x03", 7} },
 	//{ 'K', "Dual Mono - Sub",	{"\x02" "07E94" "\x03", 7} },
 	//{ 'L', "Dual Mono - All",	{"\x02" "07E95" "\x03", 7} },
@@ -601,6 +601,7 @@ bool SerialSend(const uint8_t *p, uint16_t len) {
 	return retVal;
 }
 
+#if 0
 bool ProcessSerialQueue(const uint8_t *p, uint16_t len) {
 	bool retVal = false;	// assume fail
 	static bool freshData = false;
@@ -629,7 +630,7 @@ bool ProcessSerialQueue(const uint8_t *p, uint16_t len) {
 	}
 	return retVal;
 }
-
+#endif
 
 void EmitSpinner() {
 	static int x = 0;
@@ -669,7 +670,7 @@ void EmitRuntimeHelp() {
 	}
 }
 
-
+#if 0
 // PCMessage
 //
 //	Various responses need to be formatted and shown on screen
@@ -700,7 +701,7 @@ static void PCMessage(const char *msg, int len, uint8_t **src, const char * (fnc
 	Console_AdvanceToNextLineIfNotRoomFor(26);
 	Console_Write(outBuf);
 }
-
+#endif
 
 
 #if 0
@@ -837,11 +838,11 @@ void ProcessKeyboard(void) {
 			avr->Power(AVRInterface::AVROnOff_E::eOff);
 			break;
 		case 'O':
-			ProcessSerialQueue((const uint8_t *)"\x02" "21000" "\x03", 7);
-			ProcessSerialQueue((const uint8_t *)"\x02" "3Test" "\x03", 7);
-			ProcessSerialQueue((const uint8_t *)"\x02" "3 Mes" "\x03", 7);
-			ProcessSerialQueue((const uint8_t *)"\x02" "3sage" "\x03", 7);
-			ProcessSerialQueue((const uint8_t *)"\x02" "3 WOW" "\x03", 7);
+			avr->ProcessSerialQueue("\x02" "21000" "\x03", 7);
+			avr->ProcessSerialQueue("\x02" "3Test" "\x03", 7);
+			avr->ProcessSerialQueue("\x02" "3 Mes" "\x03", 7);
+			avr->ProcessSerialQueue("\x02" "3sage" "\x03", 7);
+			avr->ProcessSerialQueue("\x02" "3 WOW" "\x03", 7);
 			break;
 		case ':':
 			GetAndSendCustomMessage();
@@ -888,6 +889,19 @@ void ProcessKeyboard(void) {
 	return;
 }
 
+void HexUppercase(char *p) {
+	const char *hex = "0123456789ABCDEF";
+	while (*p) {
+		if (*p >= 'a' && *p <= 'f')
+			*p = *p - 'a' + 'A';
+		if (NULL == strchr(hex, *p)) {
+			*p = '\0';
+			return;
+		}
+		p++;
+	}
+}
+
 void GetAndSendCustomMessage() {
 	char buf[20];
 	char msg[30];
@@ -895,9 +909,15 @@ void GetAndSendCustomMessage() {
 	Console_ScrollBottomRegion();
 	Console_WriteAt(0, -2, "Enter Hex string to send: ");
 	gets_s(buf, sizeof(buf));
-	Console_ScrollBottomRegion();
-	sprintf_s(msg, sizeof(msg), "\x02%s\x03", buf);
-	avr->ProcessSerialQueue(msg, strlen(msg));
+	HexUppercase(buf);
+	if (strlen(buf) != 5) {
+		Console_WriteAt(0, -1, "  Invalid. String must be exactly 5 HEX chars");
+		Console_ScrollBottomRegion();
+	} else {
+		Console_ScrollBottomRegion();
+		sprintf_s(msg, sizeof(msg), "\x02%s\x03", buf);
+		avr->ProcessSerialQueue(msg, strlen(msg));
+	}
 }
 
 
@@ -1036,7 +1056,7 @@ int __cdecl main(int argc, char *argv[]) {
 				//HandleMessage(anyRcvdMsg.message, anyRcvdMsg.len);
 			}
 
-			ProcessSerialQueue();
+			//ProcessSerialQueue();
 			ProcessWindowsMessage();
 		} while (!UserWantsToExitCanSniff);
 		DetachSerialPort();
diff --git a/DataSheets/Yamaha RX-V2400_RS232C_CommandsForSW.pdf.xlsx b/DataSheets/Yamaha RX-V2400_RS232C_CommandsForSW.pdf.xlsx
index de4b644..41c2dde 100644
Binary files a/DataSheets/Yamaha RX-V2400_RS232C_CommandsForSW.pdf.xlsx and b/DataSheets/Yamaha RX-V2400_RS232C_CommandsForSW.pdf.xlsx differ
diff --git a/DataSheets/Yamaha RX-V2400_RS232C_Standard.pdf b/DataSheets/Yamaha RX-V2400_RS232C_Standard.pdf
index 941acbc..73e367a 100644
Binary files a/DataSheets/Yamaha RX-V2400_RS232C_Standard.pdf and b/DataSheets/Yamaha RX-V2400_RS232C_Standard.pdf differ