Sony XR-M500R Service Manual page 45

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Pin No. Pin Name
46 KEYIN0
47 KEYIN1
48 RCIN0
49 NC
50 QUALITY
FMAGC
51
52 MPTH
53
VSM
54 VCC
55 ST-BY
56 NS-MASK
57 REEL
TE
L 13942296513
58 NC
59 TAPE ON
60 LM-EJ
61 LM-LOD
62 CM ON
63 VSS
64 POS0
65 POS1
66 POS2
67 POS3
68 NC
69 FLASH-W
70 IIC SDA
71 IIC SCL
72 RCIN1
73 X1A
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74 X0A
75 DAVN
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76 CDON-IN
77 BU-IN
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I/O
Key input terminal (A/D input) (LSW901 to LSW912, S900)
TA, SOUND, D-BASS, MENU, DISC +, . m, LIST, > M, ENTER, DISC –, CLOSE,
I
OPEN, Z keys input
(LSW901 TA, LSW903 D-BASS: XR-M500R only)
Key input terminal (A/D input) (LSW913 to LSW919, LSW921 to LSW925, S902)
6 to 3, SHUF 2, REP 1, AF, +, PTY DSPL (XR-M500R), DSPL (XR-M550), –, OFF, SOURCE,
I
MODE o keys input
(LSW919 AF: XR-M500R only)
I Rotary remote commander key input terminal (A/D input)
O
Not used (open)
Noise level detection signal input at SEEK mode (A/D input)
I
Used for the XR-M500R only (XR-M550: Not used open)
I
FM AGC detection signal input from the FM/AM tuner unit (TUX100) (A/D input)
Multi-path detection signal input from the RDS decoder (IC700) (A/D input)
I
Used for the XR-M500R only (XR-M550: Not used open)
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TUX100)
I
(A/D input)
—
Power supply terminal (+5V)
O Standby on/off control signal output terminal "L": standby mode, "H": amplifier on
Discharge control signal output for the noise detection circuit "H": discharge
O
Used for the XR-M500R only (XR-M550: Not used open)
Rotation detect signal input from supply reel sensor and take-up reel sensor on the deck
I
mechanism
I Not used (fixed at "L")
O
Tape system power supply on/off control signal output terminal "H": tape on
Motor drive signal output to the loading/tape operation motor drive (IC400) "H" active
O
(For the eject direction and reverse side operation) *1
Motor drive signal output to the loading/tape operation motor drive (IC400) "H" active
O
(For the loading direction and forward side operation) *1
O
Capstan/reel motor (M901) drive signal output terminal "H": motor on
—
Ground terminal
I
Tape position (EJECT/FF/REW/REV/
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FWD mode) detect input from the tape
I
operation switch on the deck mechanism
I
O
Not used (open)
Internal flash memory data write mode detection signal input terminal "L": data write mode
I
Not used (pull up)
Two-way data I
I/O
electrical volume (IC100) (RDS decoder is XR-M500R only)
2
I C bus clock signal output to the FM/AM tuner unit (TUX100), RDS decoder (IC700) and
O
electrical volume (IC100) (RDS decoder is XR-M500R only)
I Rotary remote commander shift key input terminal
O Sub system clock output terminal (32.768 kHz)
I
Sub system clock input terminal (32.768 kHz)
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Data transmit completed detection signal input from the RDS decoder (IC700) "H" active y
I
Used for the XR-M500R only (XR-M550: Not used open)
i
I
CD/MD on/off control signal input terminal (fixed at "L" in this set)
Battery detection signal input from the SONY bus interface (IC501) and battery detect circuit
I
"L" is input at low voltage
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2 9
8
Description
Q Q
3 6 7 1 3 1 5
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
2
C bus with the FM/AM tuner unit (TUX100), RDS decoder (IC700) and
co
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9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9
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