Sony XR-C7220R Service Manual page 43

Pin No. Pin Name
110 LM-LOD
111 CM-ON
112 TAPEON
113 N-ROUT
114 AMSON
115 DOLBC
116 DOLBY
117
CSV-NAR
118 LEDON
119 VSS
120 POWON
*1 Loading/tape operation motor control
Mode
Terminal
LM-LOD (pin `⁄⁄‚)
LM-EJ (pin `⁄‚·)
I/O
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
Forward/reverse direction control signal output to the CXA2510AQ (IC250)
O
"L": forward direction, "H": reverse direction
Tape auto music sensor control signal output to the CXA2510AQ (IC250)
O
"L" is output to lower the gain for audio level at FF/REW mode
Dolby B/C selection control in/out terminal
At initial mode: dolby B only/dolby B and C type selection input (dolby B and C at "L" input)
I/O
At normal mode: dolby type selection signal output "L": dolby B, "H": dolby C
Fixed at "H" in this set
Dolby control in/out terminal
At initial mode: valid/invalid selection input of dolby function (valid at "L" input)
I/O
At normal mode: dolby on/off control signal output to the CXA2510AQ (IC250)
(dolby on at "H" output)
I
"H" is input when CSV sends data Not used (open)
Also, this is used as select signal output for standby on/off to the power amplifier (IC700), or
O power on/off control signal output for illumination LED
"L": standby mode (LED off), "H": amp on (LED on)
—
Ground terminal
O Main system power supply on/off control signal output to the BA3918 (IC502) "H": power on
LOADING/
STOP
FORWARD
"L" "H"
"L" "L"
Function
EJECT/
BRAKE
REVERSE
"L"
"H"
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"H"
"H"