Signal Specification

All the values given below are between the respective terminal in column 1 and terminal #A5 in column 2 (power ground) unless otherwise stated in brackets after the table entry.

NOTE: It is important to connect the breakout box and check the ground terminals before taking readings.

U=	DC voltage in volts (V)	U_low =	Voltage approximately 0 V
U_bat =	Battery voltage (V)	-	-

Fig 1: 10-CD Changer Connector Terminals

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CONNECTOR A

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#A1	#21	15 supply	U = U_bat	Powered (12 V) from the relay on the central electronic module (CEM)
#A2	#22	-	-	-
#A3	#23	-	-	-
#A4	#24	-	-	-
#A5	#25	Ground	U=U_low	-

Fig 2: Identifying RTI Control Module (To Display) Connector Terminals

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CONNECTOR B

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#B1	#1	Color signal (red), screen	Analog signal when a red color signal is used	0.714 Vp-p
#B2	#2	Color signal (green), display	Analog signal when a green color signal is used	0.714 Vp-p
#B3	#3	-	-	-
#B4	#4	Serial bus to the display	Digital signal	Half duplex, start-stop synchronizer, 2400 bps
#B5	#5	-	Digital signal	38 kHz carrier wave when the remote control is pressed
#B6	#6	Color signal (blue), screen	Analog signal when a green color signal is used	0.714 Vp-p
#B7	#7	Screen ground video signals	U _low	-
#B8	#8	Composite sync, display screen	Analog signal	0-5 V
#B9	#9	-	-	-
#B10	#10	Video signal, display screen	Analog signal	1 Vp-p ± 0.2V
H	-	Screen ground	-	-

Fig 3: Identifying Connector C

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CONNECTOR C

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#C1	-	MOST input signal	-	Optical input signal
#C2	-	MOST output signal	-	Optical output signal