– 32 –
Pin No. Pin Name I/O Function
33 MTLON I/O
34 CMON O Capstan/reel motor (M901) drive signal output terminal “H”: motor on
35 TAPEON O Tape system power supply on/off control signal output terminal “H”: tape on
36 ACCON I Accessory detect signal input terminal “L”: accessory on
37 PLLSI I PLL serial data input from the FM/AM PLL (IC1)
38 BEEP O Beep sound output terminal
39 LCDCKO O Serial data transfer clock signal output to the liquid crystal display driver (IC901)
40 LCDSO O Serial data output to the liquid crystal display driver (IC901)
41 LCDINH O
Blank indicate control signal output to the liquid crystal display driver (IC901)
“L”: no display
42 LCDCE O Chip enable output to the liquid crystal display driver (IC901)
43 UNICKO O Serial data transfer clock signal output to the bus interface (IC701) (for SONY bus)
44 UNICKI I Serial data reading clock signal input terminal (for SONY bus)
45 UNISI I Serial data input from the bus interface (IC701) (for SONY bus)
46 UNISO O Serial data output to the bus interface (IC701) (for SONY bus)
47 VDD — Power supply terminal (+5V)
48 AVDD — Power supply terminal (+5V) (for A/D converter)
49 AVREF+ I Reference voltage input terminal (+5V) (for A/D converter)
50 KEYIN1 I
51 KEYIN0 I
52 D-BASS I D-BASS switch (SW951) input (A/D input)
53 KEYSEL I Setting terminal for the key (fixed at “H”)
54 DSTSEL I
Destination setting terminal
AEP, UK, South European models: fixed at “L”, German, East European models: fixed at “H”
55 RCIN0 I Rotary remote commander shift key A/D input terminal
56 VSM1 I Signal meter voltage detection input terminal Not used (fixed at “L”)
57 VSM0 I FM and AM (MW/LW) signal meter voltage detection input from the FM/AM tuner unit (TU1)
58 AVREF– I Reference ground terminal
59 AVSS — Ground terminal (for A/D converter)
60 GND — Ground terminal
61 BUSON O Bus on/off control signal output to the bus interface (IC701) (for SONY bus) “L”: bus on
62 SYSRST O Reset signal output to the bus interface (IC701) (for SONY bus) “L”: reset
63 SEKOUT O Seek control signal output to the FM/AM tuner unit (TU1)
64 TUNON O Tuner system power supply on/off control signal output to the BA3918 (IC601) “H”: tuner on
65 FM ON O FM system power supply on/off control signal output to the BA3918 (IC601) “H”: FM on
66 MUT O Line muting control signal output terminal “H”: line muting on
67 AF SEK O AF seek control signal output terminal Not used (open)
68 COLOR I Setting terminal for the illumination color “L”: amber, “H”: green Not used (open)
69 NOSESW I Detects the removal of the attaching and removing type front panel block “L”: attaching
Key input terminal (A/D input)
OFF, SOURCE, MODE *, + ) + SEEK AMS, – = 0 SEEK AMS, VOLUME –
SEL, VOLUME +, DSPL, ATT , BTM SENS keys input (LSW901 to LSW911)
Key input terminal (A/D input)
6, INTRO 1, REPEAT 2, SHUF 3, BL SKIP 6, ATA 5, MTL 4, PTY, AF/TA, PRESET DISC
+/– keys input (LSW921 to LSW931)
METAL control in/out terminal
At initial mode: valid/invalid selection input of METAL function (“L” input: valid)
At normal mode: METAL on/off control signal output to the CXA2509AQ (IC351)
“H”: METAL on