Sony XR-C8220R Service Manual page 44

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Pin No. Pin Name I/O
69
FLASH-W
70 IIC SIO I/O
71 IIC CKO
72 RC-IN1
73 X1A
74 X0A
75 DAVN
76 KEYACK
77 BU-IN
78 ILL IN
79
TEL-ATT
80 NOSESW
81 ACC IN
I/O
82 to 85 TIR-D0 to TIR-D3
86 HSTX
87 MD2
88 MD1
TE
L 13942296513
89 MD0
90 RESET
91 VSS
92 X0
93 X1
94 VCC
95 TIR-BUSY
96 TIR-WR
97 TIR-CE0
98 TIR-CE1
99 TIR-RES
100 TIR-PDOWN
101 TIR-RD
102 MTLIN
103 AMSIN
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104 REEL
105 POS0
.
106 POS1
107 POS2
108 POS3
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Internal flash memory data write mode detection signal input terminal "L": data write mode
I
Not used (fixed at "H" in this set)
Two-way data bus with the RDS decoder (IC150)
O
Bus clock signal output to the RDS decoder (IC150)
I Rotary remote commander shift key input terminal "L": shift
O
Sub system clock output terminal (32.768 kHz)
I
Sub system clock input terminal (32.768 kHz)
I
Data transmit completed detect signal input from the RDS decoder (IC150) "H" active
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
I
and eject keys in the power off status On at input of "H"
Battery detect signal input from the SONY bus interface (IC602) and battery detect circuit
I
"L" is input at low voltage
Auto dimmer control illumination line detection signal input terminal
I
"L" is input at dimmer detection
I Telephone muting signal input terminal At input of "H", the signal is attenuated by –20 dB
Front panel block remove/attach detection switch (SW500) input terminal
I
"L": front panel is attached
I Accessory detect signal input terminal "L": accessory on
Two-way data bus with the MSM6688GS (IC100)
I
Hardware standby input terminal "L": hardware standby mode Reset signal input in this set
I
Setting terminal for the CPU operational mode (fixed at "L" in this set)
I
Setting terminal for the CPU operational mode (fixed at "H" in this set)
I Setting terminal for the CPU operational mode (fixed at "H" in this set)
System reset signal input from the reset signal generator (IC500) and reset switch (SW800)
I
"L": reset "L" is input for several 100 msec after power on, then it changes to "H"
—
Ground terminal
I Main system clock input terminal (3.68 MHz)
O Main system clock output terminal (3.68 MHz)
— Power supply terminal (+5V)
Busy detection signal input from the MSM6688GS (IC100)
I
"H" is output while MSM6688GS (IC100) is executing a command
Data write strobe signal output to the MSM6688GS (IC100)
O
"L" is output when data (D0 to D3) are output to the MSM6688GS (IC100)
O
Chip enable signal output to the MSM6688GS (IC100)
TIR-WR (pin (§) or TIR-RD (pin `⁄‚⁄) is accepted when CE is "L" or CE is "H" respectively
TIR-WR (pin (§) or TIR-RD (pin `⁄‚⁄) is not accepted when CE is "H" or CE is "L" respectively
O
O Reset signal output to the MSM6688GS (IC100) "H": reset
O
Power down control signal output to the MSM6688GS (IC100) "L": power down
Data read strobe signal output to the MSM6688GS (IC100)
O
"L" is output when data (D0 to D3) are output to the MSM6688GS (IC100)
I
Metal detection signal input terminal "L": normal position, "H": metal position
Whether a music is present or not from CXA2510AQ (IC250) is detected at auto music sensor
I
"L": music is present, "H": music is not present
Rotation detect signal input from supply reel sensor and take-up reel sensor on the deck
I
x ao
mechanism
y
I
Tape position (EJECT/FF/REW/ i
I
REV/FWD mode) detect input from
the tape operation switch on the deck
I
mechanism
I
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Function
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POS0: "L": EJECT mode, "H": others mode .
POS1: "L": FF and FWD mode, "H": others mode
POS2: "L": REW mode, "H": others mode
POS3: "L": REV and EJECT mode, "H": others mode
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1 5 0 5 8 2 9 9 4
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2 8 9 9