Sony CDX-M9900 Service Manual page 19

Pin No. Pin Name I/O
58 UNICKO O SONY BUS clock signal output Used to serial port.
59 BUSON O BUS ON control signal output
60 SYSRST O System reset signal output
61 AD ON O Power supply control signal output of A/D conversion
62 SIRCS I Remote control data signal input
63 Z MUTE I Open/close panel photo detection signal input Used to input capture.
64 ATT O System mute control signal output (LINE OUT)
65 NCO O Not used in this set. (Open)
66 DEBUG I Port input for SH-3 DEBUG
67 DSTSEL1 I Destination select pin 1
68 DSTSEL2 I Destination select pin 2
69, 70 NCO O Not used in this set. (Open)
71 OPENREQ I Front panel operation request signal input
72 EJECTOK O Front panel open condition signal output
73 CDMON IN I Mechadeck power supply on signal input H: Power on
74 CDON IN I Servo power supply on signal input H: Power on
75 XRST I Reset signal input
76 RAMBU I RAM reset detection signal input
77 X1A I Low speed oscillation signal input (32.768 kHz)
78 X0A I Low speed oscillation signal input (32.768 kHz)
79 VSS — Ground pin
80 X0 I High speed oscillation signal input (3.68 MHz)
81 X1 I High speed oscillation signal input (3.68 MHz)
82 VCC3 — Power supply pin (+3.3 V)
83 ACCIN I ACC power supply detection signal input L: ACC on
84 TESTIN I Test mode setting detection signal input
85 ILLIN I ILL line detection signal input L: Dimmer on
86 TELATT I TEL mute detection signal input
87 RC IN1 I Rotary commander signal input
88 CLOSE SW I Open/close panel position detection signal input
89 OPEN SW I Open/close panel position detection signal input
90 PARKING O Parking signal output
91, 92 RE–2, RE+2 I Rotary encoder signal input
93, 94 RE–1, RE+1 I Rotary encoder signal input
95 DP 18VO O +1.8 V power supply on/off control signal output
96 DP PW I Communication possible condition signal input
97 MST PW O Power supply on condition signal output
98 DP RST O DP reset signal output
99 DDC ON O Concentration power supply control signal output
100 FSW SFT O DC-DC converter frequency control signal output
Pin Description
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CDX-M9900/M9905X