Sony XR-C7500RX Service Manual page 37

Pin No. Pin Name
35 DSPLAT
36 DSPRST
37 NC
38 DVCC
39 DVSS
40, 41 NC
42 AVCC
43 AVRH
44 AVRL
45 AVSS
46 KEYIN0
47 KEYIN1
48 RCIN0
49 DSTSEL
50 QUALITY
FMAGC
51
52 MPTH
53
VSM
54 VCC
55 AMP ON
56 NS-MASK
57 MTLOUT
58 REEL
59 LM-EJ
60 LM-LOD
61 CM ON
62 TAPE ON
63 VSS
64 NC
65 POS0
66 POS1
67 POS2
68 POS3
69
FLASH-W
70 I2C SDA
71 I2C SCL
72 RCIN1
I/O
O Serial data latch pulse output to the CXD2726Q (IC100)
O
Reset signal output to the CXD2726Q (IC100) "L": reset
O
Not used (open)
—
Power supply terminal (+5V) (for D/A converter)
— Ground terminal (for D/A converter)
O
Not used (open)
— Power supply terminal (+5V) (for analog system)
I Reference voltage (+5V) input terminal (for A/D converter)
I Reference voltage (0V) input terminal (for A/D converter)
— Ground terminal (for analog system)
Key input terminal (A/D input) (LSW901 to LSW908, S901 to S904)
OFF, SOURCE, SOUND EQ, MENU, PTY DSPL, LIST, ENTER, o MODE, SEEK/AMS -
I
. m + > M, DISC/PRST +, DISC/PRST – keys input
Key input terminal (A/D input) (LSW801, LSW909 to LSW917)
I
Z, DSO, TA, AF, 6 to 3 SHUF 2, REP 1 keys input
I Rotary remote commander key input terminal (A/D input)
Destination setting terminal (A/D input) "L": XR-C7500R/C7500RX: TYPE A,
I
"M": XR-C7500R/C7500RX: TYPE C, "H": XR-C7500R/C7500RX: TYPE B
I Noise level detection signal input at SEEK mode (A/D input)
I
FM AGC detection signal input from the FM/AM tuner unit (TUX1) (A/D input)
I Multi-path detection signal input from the RDS decoder (IC50) (A/D input)
I FM and AM signal meter voltage detection input from the FM/AM tuner unit (TUX1) (A/D input)
—
Power supply terminal (+5V)
Standby on/off control signal output to the power amplifier (IC700)
O
"L": standby mode, "H": amp on
O
Discharge control signal output for the noise detection circuit "H": discharge
O METAL on/off control signal output to the CXA2510AQ (IC250) "H": METAL on
Rotation detect signal input from supply reel sensor and take-up reel sensor on the deck
I
mechanism
Motor drive signal output to the loading/tape operation motor drive (IC201) "H" active
O
(For the eject direction and reverse side operation) *1
Motor drive signal output to the loading/tape operation motor drive (IC201) "H" active
O
(For the loading direction and forward side operation) *1
O Capstan/reel motor (M901) drive signal output terminal "H": motor on
O
Tape system power supply on/off control signal output terminal "H": tape on
—
Ground terminal
I
Not used (fixed at "L")
I
Tape position (EJECT/FF/REW/REV/
I
FWD mode) detect input from the tape
I
operation switch on the deck mechanism
I
Internal flash memory data write mode detection signal input terminal "L": data write mode
I
Not used (fixed at "H")
2
Two-way data I C bus with the FM/AM tuner unit (TUX1), RDS decoder (IC50) and electrical
I/O
volume (IC10)
2
I C bus clock signal output to the FM/AM tuner unit (TUX1), RDS decoder (IC50) and electrical
O
volume (IC10)
I Rotary remote commander shift key input terminal
Description
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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