Sony MDX-C8500R Service Manual page 54

Pin No. Pin Name
35 DSPLAT
36 DSPRST
37 ANT CUT
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 MTP
53
VSM
54 VCC
55 AMPON
56 NS-MASK
57 MTLOUT
58 REEL
59 POS0
60 POS1
61 POS2
62 POS3
63 VSS
64 NC
65 F OSC
66 LM-LOD
67 CM ON
68 TAPE ON
69
FLASH-W
70 I2C SDA
71 I2C CKO
54
I/O
O
Serial data latch pulse output to the CXD2726Q (IC805)
O
Reset signal output to the CXD2726Q (IC805) "L": reset
Tuner system power supply on/off control signal output terminal "H": tuner power on
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 (MDX-C8500R), DSPL (MDX-C8500X),
I
LIST, ENTER, MODE, SEEK/AMS - . m + > M, DISC/PRST +, PRST/DISC - keys
input
Key input terminal (A/D input) (LSW751, LSW909 to LSW917)
I Z, DSO, TA, AF, 6 to 3 SHUF 2, REP 1 keys input
(LSW910 TA, LSW911 AF: MDX-C8500R ONLY)
I Rotary remote commander key input terminal (A/D input)
Destination setting terminal (A/D input) "L": MDX-C8500X/C8500R (TYPE A),
I
"M": MDX-C8500R (TYPE C), "H": MDX-C8500R (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 (TUX201) (A/D input)
Multi-path detection signal input from the RDS decoder (IC201) (A/D input)
I
Used for the MDX-C8500R only (MDX-C8500X: Not used open))
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TUX201)
I
(A/D input)
—
Power supply terminal (+5V)
Standby on/off control signal output terminal
O
"L": standby mode, "H": amplifier on
Discharge control signal output for the noise detection circuit "H": discharge
O
Used for the MDX-C8500R only (MDX-C8500X: Not used open))
O
METAL output terminal (METAL on at "L" output) Not used (open)
I
Rotation detect signal input terminal Not used (fixed at "L")
I
Tape position (EJECT/FF/REW/REV/
I
FWD mode) detect input from the tape
operation switch on the deck mechanism
I
Not used this function (fixed at "L")
I
—
Ground terminal
I
Not used (fixed at "L")
I
Frequency count terminal from power control (IC302)
Loading motor control signal output terminal "H" active
O
(For the loading direction and forward side operation) Not used (open)
O Capstan/reel motor control signal output terminal "H": motor on Not used (open)
O
Tape system power supply on/off control signal output terminal "H": tape on Not used (open)
I
Internal flash memory data write mode detection signal input terminal Not used
Two-way data I2C bus with the FM/AM tuner unit (TUX201), RDS decoder (IC201) and
I/O
electrical volume (IC301) (RDS decoder is MDX-C8500R only)
I2C bus clock signal output to the FM/AM tuner unit (TUX201), RDS decoder (IC201) and
O
electrical volume (IC301) (RDS decoder is MDX-C8500R only)
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