![background image](http://html.mh-extra.com/html/sony/hcd-grx5/hcd-grx5_service-manual_420726047.webp)
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Pin No.
Pin Name
I/O
Function
42
PL-LATCH
O
Serial data latch pulse output terminal Not used (open)
43
COM-DIN
I
Serial data input terminal Not used (fixed at “L”)
44
COM-DOUT
O
Serial data output terminal Not used (open)
45
COM-CLK
O
Serial data transfer clock signal output terminal Not used (open)
46
CD-POWER
O
Power on/off control signal output for the CD mechanism deck section
“H”: power on, “L”: standby
47
CD-DATA
O
Serial data output to the CXD2519Q (IC103)
48
CD-CLK
O
Serial data transfer clock signal output to the CXD2519Q (IC103)
49
PL-CLK
O
Serial data transfer clock signal output terminal Not used (open)
50
PL-DATA
O
Serial data output terminal Not used (open)
51
M62442-CLK
O
Serial data transfer clock signal output to the M62442FP (IC101)
52
M62442-DATA
O
Serial data output to the M62442FP (IC101)
53
LEVEL-CONT-A
O
Level control signal output terminal Not used (open)
54
LEVEL-CONT-B
O
Level control signal output terminal Not used (open)
55
IIC-DATA
I/O
Communication data bus with the fluorescent indicator tube driver (IC601)
56
IIC-CLK
I/O
Communication data reading clock signal input or transfer clock signal output with the fluo-
rescent indicator tube driver (IC601)
57
XRST
O
Reset signal output to the CXA1992AR (IC101), BA5941FP (IC102) and CXD2519Q (IC103) on
the CD mechanism deck section “L”: reset
58
XLT
O
Serial data latch pulse output to the CXD2519Q (IC103)
59
FOCUS-SW
O
Focus control signal output terminal Not used (open)
60
TBL-L
O
Motor drive signal output to the disc tray turn motor driver (IC701) *1
61
TBL-R
O
Motor drive signal output to the disc tray turn motor driver (IC701) *1
62
NCO
O
Not used (open)
63
LOAD-OUT
O
Motor drive signal output to the disc tray slide motor driver (IC801) *2
64
LOAD-IN
O
Motor drive signal output to the disc tray slide motor driver (IC801) *2
65
ST-CLK
O
PLL serial data transfer clock signal output to the FM/AM tuner unit
66
ST-DIN
I
PLL serial data input from the FM/AM tuner unit
67
ST-DOUT
O
PLL serial data output to the FM/AM tuner unit
68
ST-CE
O
PLL chip enable signal output to the FM/AM tuner unit
69
TUNED
I
Tuning detection signal input from the FM/AM tuner unit “L”: tuned
70
STEREO
I
FM stereo detection signal input from the FM/AM tuner unit “L”: stereo
71
VSS
—
Ground terminal
72
ST-MUTE
O
Tuner muting control signal output to the FM/AM tuner unit “L”: muting on
73
SENS2
I
Internal status (SENSE) signal input from the CXA1992AR (IC101)
74
SENS
I
Internal status (SENSE) signal input from the CXD2519Q (IC103)
*2 Disc tray slide motor (M801) control
LOAD-OUT (pin
^£
)
“H”
“H”
“L”
“L”
LOAD-IN (pin
^¢
)
“H”
“L”
“H”
“L”
Terminal
STOP
TABLE IN
TABLE OUT
BRAKE
Mode
*1 Disc tray turn motor (M701) control
TB-L (pin
^º
)
“H”
“L”
“H”
“L”
TB-R (pin
^¡
)
“H”
“H”
“L”
“L”
Terminal
STOP
COUNTER-
CLOCKWISE
CLOCKWISE
BRAKE
Mode
Summary of Contents for HCD-GRX5
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