Sony MDX-C6400R / MDX-C6500R / MDX-C6500RX Service Manual ▷ View online
45
Pin No.
Pin Name
I/O
Description
47
UNIREQ
O
Data request signal output terminal (for SONY bus) “H”: request on Not used (open)
48
UNICKIO
I/O
Serial clock signal input from the master controller (IC501) or serial clock signal output to the
SONY bus interface (IC701) and master controller (IC501) (for SONY bus)
SONY bus interface (IC701) and master controller (IC501) (for SONY bus)
49
UNISI
I
Serial data input from the SONY bus interface (IC701)
50
UNISO
O
Serial data output to the SONY bus interface (IC701)
51
MD-CKO
O
Serial data transfer clock signal output to the CXD2652AR (IC301) and CXA2523AR (IC302)
52
MD-SI
I
Reading serial data signal input from the CXD2652AR (IC301)
53
NCO
O
Not used (open)
54
SENS
I
Internal status (SENSE) input from the CXD2652AR (IC301)
55
CC-XINT
I
Interrupt status input from the CXD2652AR (IC301)
56
LIMIT-IN
I
Detection input from the sled limit-in detect switch
The optical pick-up is inner position when “L”
The optical pick-up is inner position when “L”
57
EJT-KEY
I
Eject request signal input terminal “L”: eject on Not used (fixed at “H”)
58
ERROR-PWM
O
PWM error monitor output terminal (C1and ATER is output when test mode) Not used (open)
59
MD-RST
O
Reset signal output to the PCM1718E (IC101), CXD2652AR (IC301) and BH6511FS (IC303)
“L”: reset
“L”: reset
60
BU-IN
I
Battery detect signal input from the SONY bus interface (IC600) and battery check circuit
“H”: battery on
“H”: battery on
61
BUS-ON
I
SONY bus on/off control signal input from the master controller (IC700) “L”: bus on
62
SQSY
I
Subcode Q sync (SCOR) input from the CXD2652AR (IC301)
“L” is input every 13.3 msec Almost all, “H” is input
“L” is input every 13.3 msec Almost all, “H” is input
63
C-SW
I
Inputs the disc loading start or disc eject completion detect switch detection signal
“L”: When start or eject completed of the disc loading operation
“L”: When start or eject completed of the disc loading operation
64
MD-LAT
O
Serial data latch pulse signal output to the CXD2652AR (IC301) and CXA2523AR (IC302)
65
MD-ON
O
Power supply on/off control signal output of the MD mechanism deck section main power supply
“H”: power on
“H”: power on
66
DEEMP
O
Emphasis on/off control signal output to the PCM1718E (IC101) “H”: emphasis on
67
A-MUTE
O
Audio muting on/off control signal output terminal
68
NCO
O
Not used (open)
69
TSTCKO
O
Output of clock signal for the test mode display Not used (open)
70
TSTSO
O
Output of data for the test mode display Not used (open)
71
TSTMOD
I
Setting terminal for the test mode “L”: test mode, “H”: normal mode
72
VCC
—
Power supply terminal (+5V)
73
NIL
I
Not used (fixed at “H”)
74 to 77
TOUT0 to TOUT3
O
Output of the 4
×
8 matrix test keys Not used (open)
78 to 80
TIN0 to TIN2
I/O
Input of the 4
×
8 matrix test keys (“L” is always output, except in test mode) Not used (open)
*1 Loading motor (M903) control
LOAD (pin 6)
“H”
“L”
“H”
“L”
EJECT (pin 7)
“L”
“H”
“H”
“L”
Terminal
Operation
IN
OUT
BRAKE
STOP
46
•
MAIN BOARD IC501 MB90574PMT-G-266-BND (MASTER CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
TUNON
O
Tuner system power supply on/off control signal output to the BA4908 (IC671)
“H”: tuner power on
“H”: tuner power on
2
ANT CUT
O
Tuner system power supply on/off control signal output terminal “H”: tuner power on
Not used (open)
Not used (open)
3
BUSON
O
Bus on/off control signal output to the MD mechanism controller (IC501) and SONY bus
interface (IC701) “L”: bus on
interface (IC701) “L”: bus on
4 to 6
NCO
O
Not used (open)
7
ILLON
O
Power on/off control signal output of the illumination LED and liquid crystal display driver
(IC901) “H”: power on
(IC901) “H”: power on
8
VCC
—
Power supply terminal (+5V)
9
E2P SIO
I/O
Two-way data E2P bus with the FM/AM tuner unit (TU1)
10
E2P CKO
O
E2P bus clock signal output to the FM/AM tuner unit (TU1)
11
SYSRST
O
System reset signal output to the MD mechanism controller (IC501) and SONY bus interface
(IC701) “L”: reset
(IC701) “L”: reset
12
DOORSW
I
Front panel open/close detection signal input terminal
“L” is input when the front panel is closed
“L” is input when the front panel is closed
13
LCDSO
O
Serial data output to the liquid crystal display driver (IC901)
14
LCDCKO
O
Serial data transfer clock signal output to the liquid crystal display driver (IC901)
15
LCDCE
O
Chip enable signal output to the liquid crystal display driver (IC901) “H” active
16
BEEP
O
Beep sound drive signal output to the power amplifier (IC611)
17
UNISI
I
Serial data input from the SONY bus interface (IC701)
18
UNISO
O
Serial data output to the SONY bus interface (IC701)
19
UNICKO
O
Serial clock signal output to the MD mechanism controller (IC501) and SONY bus interface
(IC701)
(IC701)
20
UNICKI
I
Serial clock signal input from the MD mechanism controller (IC501) (for SONY bus)
21
CD MD
I
Setting terminal for the internal mechanism CD or MD
“L”: CD, “H”: MD (fixed at “H” in this set)
“L”: CD, “H”: MD (fixed at “H” in this set)
22
FLASHW
I
Internal flash memory data write mode detection signal input terminal “L”: data write mode
Not used
Not used
23
NCO
O
Not used (open)
24
SIRCS
I
Sircs remote control signal input from the remote control receiver (IC951)
25 to 28
NCO
O
Not used (open)
29
DOORIND
O
LED drive signal output of the MD disc slot illumination and Z indicator (LED810, LSW810)
“H”: LED on “H” is output to turn on LED when front panel is opened
“H”: LED on “H” is output to turn on LED when front panel is opened
30, 31
NCO
O
Not used (open)
32
NS MASK
O
Discharge control signal output for the noise detection circuit “H”: discharge
33
VSS
—
Ground terminal
34
C
—
Connected to coupling capacitor for the power supply
35
AD ON
O
A/D converter power control signal output terminal
When the KEYACK (pin uh) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
When the KEYACK (pin uh) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
36
REIN0
I
37
REIN1
I
38
DVCC
—
Power supply terminal (+5V) (for D/A converter)
39
DVSS
—
Ground terminal (for D/A converter)
40, 41
NCO
O
Not used (open)
42
AVCC
—
Power supply terminal (+5V) (for analog system)
Dial pulse input of the rotary encoder (RE901)
(for VOLUME/BASS/TREBLE/BALANCE/FADER control)
(for VOLUME/BASS/TREBLE/BALANCE/FADER control)
47
Pin No.
Pin Name
I/O
Description
43
AVRH
I
Reference voltage (+5V) input terminal (for A/D converter)
44
AVRL
I
Reference voltage (0V) input terminal (for A/D converter)
45
AVSS
—
Ground terminal (for analog system)
46
KEYIN0
I
Key input terminal (A/D input) (LSW901 to LSW908, S901 to S904)
OFF, SOURCE, SOUND, MENU, PTY DSPL, LIST, ENTER, MODE,
SEEK/AMS - . m + > M, DISC/PRST +, PRST/DISC - keys input
OFF, SOURCE, SOUND, MENU, PTY DSPL, LIST, ENTER, MODE,
SEEK/AMS - . m + > M, DISC/PRST +, PRST/DISC - keys input
47
KEYIN1
I
Key input terminal (A/D input) (LSW810, LSW909 to LSW917)
Z, D-BASS, TA, FA, 6 to 3 SHUF 2, REP 1 keys input
Z, D-BASS, TA, FA, 6 to 3 SHUF 2, REP 1 keys input
48
RCIN0
I
Rotary remote commander key input terminal (A/D input)
49
DSTSEL
I
Destination setting terminal (fixed at “L” in this set)
50
QUALITY
I
Noise level detection signal input at SEEK mode (A/D input)
51
FMAGC
I
FM AGC detection signal input from the FM/AM tuner unit (TU1) (A/D input)
52
MPTH
I
Multi-path detection signal input from the RDS decoder (IC51) (A/D input)
53
VSM
I
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)
(A/D input)
(A/D input)
54
VCC
—
Power supply terminal (+5V)
55
RAMBU
I
Internal RAM reset detection signal input terminal
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset Not used (fixed at “H”)
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset Not used (fixed at “H”)
56
TUNATT
O
Muting on/off control signal output of the FM/AM tuner signal “H”: muting on
57
VOLATT
O
Pre amplifier muting on/off control signal output to the electrical volume (IC151)
“L”: muting on
“L”: muting on
58
ATT
O
Audio line muting on/off control signal output terminal “H”: muting on
59
AMPON
O
Standby on/off control signal output to the power amplifier (IC611)
“L”: standby mode, “H”: ampifier on
“L”: standby mode, “H”: ampifier on
60
AMPATT
O
Power amplifier muting on/off control signal output to the power amplifier (IC611)
“L”: muting on
“L”: muting on
61
COLSW
I
Setting terminal for the illumination color “L”: 2 color, “H”: 1 color (fixed at “H” in this set)
62
COLSEL
I
Setting terminal for the illumination color “L”: amber, “H”: green (fixed at “L” in this set)
63
VSS
—
Ground terminal
64
DAVN
I
Data transmit completed detection signal input from the RDS decoder (IC51) “H” active
65
FILE
I
Setting terminal for the custom file “L”: unavailable, “H”: available (fixed at “H” in this set)
66
TEXT
I
Setting terminal for the CD text “L”: unavailable, “H”: available (fixed at “H” in this set)
67
NOSESW
I
Front panel block remove/attach detection signal input from the nose detection switch (SW504)
“L”: front panel is attached
“L”: front panel is attached
68, 69
NCO
O
Not used (open)
70
I2C SIO
I/O
Two-way data I2C bus with the FM/AM tuner unit (TU1), RDS decoder (IC51) and electrical
volume (IC151)
volume (IC151)
71
I2C CKO
O
I2C bus clock signal output to the FM/AM tuner unit (TU1), RDS decoder (IC51) and electrical
volume (IC151)
volume (IC151)
72
NCO
O
Not used (open)
73
X1A
O
Sub system clock output terminal (32.768 kHz)
74
X0A
I
Sub system clock input terminal (32.768 kHz)
75
NCO
O
Not used (open)
76
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”
and eject keys in the power off status On at input of “H”
77
BUIN
I
Battery detection signal input from the SONY bus interface (IC701) and battery detect circuit
“L” is input at low voltage
“L” is input at low voltage
48
Pin No.
Pin Name
I/O
Description
78
ILLIN
I
Auto dimmer control illumination line detection signal input terminal
“H” is input at dimmer detection Not used (fixed at “L”)
“H” is input at dimmer detection Not used (fixed at “L”)
79
TELATT
I
Telephone detection signal input terminal At input of “H”, the signal is attenuated by –20 dB
Used for the MDX-C6500R/C6500RX only (MDX-C6400R: fixed at “L”)
Used for the MDX-C6500R/C6500RX only (MDX-C6400R: fixed at “L”)
80
NCO
O
Not used (open)
81
TEST IN
I
Setting terminal for the test mode “L”: test mode, Normally: fixed at “H”
82
ACC IN
I
Accessory detection signal input terminal “L”: accessory on
83
NCO
O
Not used (open)
84
LOCKIN
I
Mini-disc lock detection signal input from the MD mechanism controller (IC501) “H”: lock
85
RCIN1
I
Rotary remote commander shift key input terminal “L”: shift
86
HSTX
I
Hardware standby input terminal “L”: hardware standby mode Reset signal input in this set
87
MD2
I
Setting terminal for the CPU operational mode (fixed at “L” in this set)
88
MD1
I
Setting terminal for the CPU operational mode (fixed at “H” in this set)
89
MD0
I
Setting terminal for the CPU operational mode (fixed at “H” in this set)
90
RSTX
I
System reset signal input from the reset signal generator (IC652) and reset switch (SW503)
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
91
VSS
—
Ground terminal
92
X0
I
Main system clock input terminal (3.68 MHz)
93
X1
O
Main system clock output terminal (3.68 MHz)
94
VCC
—
Power supply terminal (+5V)
95 to 97
NCO
O
Not used (open)
98
DIM SEL
I
Setting terminal for the dimmer “L”: dimmer in, “H”: no dimmer (fixed at “H” in this set)
99
TAP CD
I
Setting terminal for the internal mechanism tape or CD
“L”: CD, “H”: tape (fixed at “L” in this set)
“L”: CD, “H”: tape (fixed at “L” in this set)
100, 101
NCO
O
Not used (open)
102
AMTL IN
I
Auto metal detection signal input terminal “L”: auto metal Not used (open)
103
AMS IN
I
Input terminal of whether a music is present or not is detected at auto music sensor
“L”: music is present, “H”: music is not present Not used (open)
“L”: music is present, “H”: music is not present Not used (open)
104
REEL
I
Rotation detect signal input terminal Not used (open)
105
POS0
I
106
POS1
I
107
POS2
I
108
POS3
I
109
LM EJ
O
Loading motor control signal output terminal “H” active
(For the eject direction and reverse side operation) Not used (open)
(For the eject direction and reverse side operation) Not used (open)
110
LM LD
O
Loading motor control signal output terminal “H” active
(For the loading direction and forward side operation) Not used (open)
(For the loading direction and forward side operation) Not used (open)
111
CM ON
O
Capstan/reel motor control signal output terminal “H”: motor on Not used (open)
112
TAPON
O
Tape system power supply on/off control signal output terminal “H”: tape on Not used (open)
113
N ROUT
O
Forward/reverse direction control signal output terminal
“L”: forward direction, “H”: reverse direction Not used (open)
“L”: forward direction, “H”: reverse direction Not used (open)
114
AMSON
O
Tape auto music sensor control signal output terminal
“L” is output to lower the gain for audio level at FF/REW mode Not used (open)
“L” is output to lower the gain for audio level at FF/REW mode Not used (open)
115
MTLON
I/O
METAL control in/out terminal
At initial mode: auto/manual mode selection input of METAL function (manual at “L” input)
At manual mode: METAL on/off control signal output terminal (METAL on at “H” output)
Not used this function (open)
At initial mode: auto/manual mode selection input of METAL function (manual at “L” input)
At manual mode: METAL on/off control signal output terminal (METAL on at “H” output)
Not used this function (open)
Tape position (EJECT/FF/REW/REV/
FWD mode) detect input from the tape
operation switch on the deck mechanism
Not used this function (open)
FWD mode) detect input from the tape
operation switch on the deck mechanism
Not used this function (open)
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
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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