Sony XR-C6100, Service Manual

Page: 19 / 36

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Pin No. Pin Name I/O Function
67 KEYACK I
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
and eject keys in the power off status On at input of “H”
68 VDD — Power supply terminal (+5V)
69 X OUT O Main system clock output terminal (5 MHz)
70 X IN I Main system clock input terminal (5 MHz)
71 GND — Ground terminal
72 XT OUT O Sub system clock output terminal (32.768 kHz)
73 XT IN I Sub system clock input terminal (32.768 kHz)
74 AVDD — Power supply terminal (+5V) (for A/D converter)
75 AVREF0 I Reference voltage input terminal (+5V) (for A/D converter)
76 KEYIN0 I
77 KEYIN1 I
78 D-BASS I D-BASS switch (SW951) input (A/D input)
79 VSM I FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)
80 KEYSEL I Setting terminal for the key (fixed at “L”)
Key input terminal (A/D input)
OFF, SOURCE, MODE
*
, SEEK AMS +
+ )
, SEEK AMS
= 0
–, VOLUME –,
SEL, , DSPL, ATT keys input (LSW901 to LSW910)
Key input terminal (A/D input)
6
, INTRO 1, REPEAT 2, SHUF/ a 3, BL SKIP 6, ATA 5, BANK/MTL 4, BTM LCL, FILE,
PRESET DISC +/– keys input (LSW921 to LSW931)
*1 loading/tape operation motor control
MODE
TERMINAL
LM LOD (pin
#§
) “L” “H” “L” “H”
LM EJ (pin
#¶
) “L” “L” “H” “H”
STOP
LOADING/
FORWARD
EJECT/
REVERSE
BRAKE