Read Sony XR-CA650X Service Manual online
26
XR-CA650X
Pin No.
Pin Name
I/O
Description
45
IIC SIO
I/O
Two-way data IIC bus with the tuner unit and electrical volume
46
NCO
O
Not used
47
IIC CKO
O
IIC bus clock signal output to the tuner unit and electrical volume
48
AMPON
O
Standby on/off control signal output to the power amplifier
“L”: standby mode, “H”: amplifier on
“L”: standby mode, “H”: amplifier on
49
AMPATT
O
Muting on/off control signal output to the power amplifier “L”: muting on
50
ATT
O
Audio line muting on/off control signal output “H”: muting on
51
NCO
O
Not used
52
AMSON
O
Tape auto music sensor control signal output to the tape equalizer amplifier
“L”: auto music sensor on
“L”: auto music sensor on
53
F/ROUT
O
Forward/reverse control signal output to the tape equalizer amplifier
“L”: reverse direction, “H”: forward direction
“L”: reverse direction, “H”: forward direction
54
MTLON
O
METAL control in/out terminal
At initial mode: valid/invalid selection input of METAL function (valid at “L” input)
At normal mode: METAL on/off control signal output to the tape equalizer amplifier
(METAL on at “H” output)
At initial mode: valid/invalid selection input of METAL function (valid at “L” input)
At normal mode: METAL on/off control signal output to the tape equalizer amplifier
(METAL on at “H” output)
55
TAPATT
O
Tape muting on/off control signal output to the tape equalizer amplifier “H”: muting on
Active at ATA, FF/REW mode
Active at ATA, FF/REW mode
56
DOLON
I/O
Dolby control in/out terminal Not used
57
AMSIN
I
Whether a music is present or not from tape equalizer amplifier is detected at auto music sensor
“L”: music is present, “H”: music is not present
“L”: music is present, “H”: music is not present
58
4VPRE
I
4V PREOUT setting terminal “L”: 4V PREOUT on Fixed at “H” in this set
59
VOLATT
O
Pre amplifier muting on/off control signal output to the electrical volume “L”: muting on
60 to 64
NCO
O
Not used
65
FLASH W
I
Internal flash memory data write mode detection signal input terminal “L”: data write mode
Not used
Not used
66
TESTIN
I
Setting terminal for the test mode “L”: test mode, normally fixed at “H”
67
RCIN1
I
Rotary remote commander shift key input “L”: shift key on
68 to 73
NCO
O
Not used
74
EEP SIO
I/O
Two-way data bus for tuner EEPROM with the tuner unit
75
EEP CKO
I/O
Two-way bus clock signal for tuner EEPROM with the tuner unit
76
COLSEL
I
Setting terminal for the illumination color
“L”: red Fixed at “L” in this set
“L”: red Fixed at “L” in this set
77
SWSHIFT
O
VCO shift control signal output to the tuner unit for SW
“L”: EXCEPT SW, “H”: SW
“L”: EXCEPT SW, “H”: SW
78
DOORSW
I
Front panel open/close detection signal input “L” is input when the front panel is closed
79
DOORIND
O
LED drive signal output of the MD disc slot illumination and Z indicator
“H”: LED on “H” is output to turn on the LED when front panel is opened
“H”: LED on “H” is output to turn on the LED when front panel is opened
80, 81
REIN1, REIN0
I
Dial pulse input of the rotary encoder (for VOLUME control)
82
A/D ON
O
A/D converter power control signal output
When the KEYACK (pin wh) 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 wh) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
83
ILLON
O
Power on/off control signal output of the illumination LED and liquid crystal display driver
“H”: power on
“H”: power on
84
REL
I
Rotation detection signal input from supply reel sensor and take-up reel sensor on the mechanism
deck
deck
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