Sony HCD-PX5, Руководство по обслуживанию

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91
Pin No. Pin Name I/O Description
51
TRAYSENS2 I
Detection input from the disc tray 2 height sensor (IC732)
“H”: disc tray 2 position is chucking position
52 OUT-SW I
Detection input from the OUT switch (S742) “L”: when sub tray is chucking position
53 IN-SW I
Detection input from the IN switch (S741)
“L”: when sub tray slides out of the chucking position
54 LOD-POS
O
CD loading motor (M721) control signal output to the motor driver IC (IC701)
“L” active *1
55 LOD-NEG O
CD loading motor (M721) control signal output to the motor driver IC (IC701)
“L” active *1
56 CLP POS O Motor control signal output to the motor driver IC “L” active Not used (open)
57
CLP NEG
O
Motor control signal output to the motor driver IC “L” active Not used (open)
58 BVDD
— Power supply terminal (+5V) (for digital system)
59 BVSS
— Ground terminal (for digital system)
60 to 72
NC
O
Not used (open)
73
FUN
O
Fun motor on/off control signal output terminal “H”: fun motor on Not used (open)
74 AVDD
— Power supply terminal (+5V)
75 AVSS — Ground terminal
76
AVREF I Reference voltage (+5V) input terminal
77 to 80
KEY0 to KEY3 I Key input terminal (A/D input) Not used (fixed at “H”)
81 to 83 SEL0 to SEL2 I Model destination setting terminal (A/D input)
84
TEL I Tracking error level detection input terminal Not used (open)
85
SEL3 I Model (CD mechanism deck) destination setting terminal (A/D input)
86 DISC-SENS I Detection input from the disc in detect sensor (IC751) (A/D input) “H”: disc in
87
MECHA-JIGU
I
Not used (open)
88
ADJ I Setting terminal for the CD test mode “L”: CD test mode Normally: fixed at “H”
89 I2CHELP I Busy signal input for the IIC bus
90
I2CHELP
I
Busy signal input for the IIC bus
91
SCOR
I
Subcode sync (S0+S1) detection signal input from the CD block
92 NC O Not used (open)
93
AC-CUT
I
Power down detection signal input from the system controller (IC501)
94, 95
JOG0, JOG1
I
Rotary encoder jog dial pulse input terminal Not used (fixed at “L”)
96 NC O Not used (open)
97
LEDLAT O Serial data latch pulse output to a FL driver Not used (open)
98
DRVCS
I
Chip select signal output to a FL driver Not used (open)
99
DRVRST
I
Reset signal output to a FL driver “L”: reset Not used (open)
100 GND — Ground terminal
*1 Loading motor (M721) control
Mode
Terminal
LOD NEG (pin tg )
“L” “H” “L” “H”
LOD POS (pin
tf
)
“H” “L” “L” “H”
LOADING EJECT BRAKE RUN IDLE
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