Sony MDS-DRE1 Service Manual page 60

Pin No. Pin Name
71 WPOWER
72 SDA-CDSP
73 SND-CDSP
74 SDA
75 SCL
76 SENSE
77 PROTECT
78 REFLECT
79 LD-ON
80 LIMIT-IN
81 RVS
82 SERIAL OK
83 SC TRANSFER
84 —
85 SRDT-SEL
86 FACTORY
87 FAN CONT
88 DESTINATION
89 to 95 —
96 AVSS
97 —
98 AVREF
99 AVCC
100 —
I/O
Laser power select signal output to the CXD2535CR (IC121) and HF module switch circuit
O
"L": playback mode, "H": recording mode
I/O
Two-way data bus with the DSP (IC701)
O Not used (open)
I/O
Two-way data bus with the EEPROM (IC171)
O
Serial clock signal output to the EEPROM (IC171) and DSP (IC701)
I
Internal status monitor input from the CXD2535CR (IC121)
I
Rec-proof claw detect input from the protect detect switch (S102) "H": write protect
Detection input from the disc reflection rate detect switch (S102)
I
"L": high reflection rate disc, "H": low reflection rate disc
Laser diode on/off selection signal output to the automatic power control circuit
O
"H": laser on
Detection input from the sled limit-in detect switch (S101)
I
The optical pick-up is inner position when "L"
O Playback direction control signal output to the DSP (IC701) "L": RVS, "H": FWD
O
Communicate information output terminal "L": NG, "H": OK Not used (pull up)
Sector transfer information output of the CXD2537R (IC501, IC601) "H": transfer
O
Not used (pull up)
O
Not used (pull up)
Selection signal output to the SRDT selector (IC152)
O
"L": ATRAC encoder (IC501), "H": ATRAC decoder (IC601)
Market/factory mode selection signal input terminal "L": market, "H": factory
I
Fixed at "L" in this set
O Fan motor (M801) drive signal output terminal "L": motor on, "H": low speed
I Setting terminal for the destination Fixed at "H" in this set
O Not used (pull up)
— Ground terminal (for A/D converter)
O
Not used (pull up)
I Reference voltage (+5V) input terminal (for A/D converter)
— Power supply terminal (+5V) (for A/D converter)
O
Not used (pull up)
Function
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