Sony MDS-PC1, Service Manual

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Pin No. Pin Name I/O Function
NC
GND
SENS
NMT1 (SHOCK)
DIG-RST
MNT2 (XBUSY)
LDON
REFLECT
XLATCH
PROTECT
MOD
LIMIT-IN
WR PWR
MNT3 (SLOCK)
MNT0 (FOK)
SDA
SCL
SCTX
CLOCKSET0
CLOCKSET1
LED0 (POWER)
LED1 (NC)
NC
OPT SEL
CONTROL A1 OUT
NC (BEEP SW)
SOURCE SW
NC
TIMER SW
NC
NC (KEY3)
KEY 2, KEY 1
AVSS
KEY0
VREF
AVCC
MONO/ST
Not used
Ground
Internal status (SENSE) input from the CXD2652AR
Track jump signal input from the CXD2652AR
Digital rest signal output to the CXD2652AR and motor driver Reset: “L”
In the state of executive command from the CXD2652AR
Laser ON/OFF control output “H”: Laser ON
Disk reflection rate detection input from the reflect detection switch
Disk with low reflection rate: “H”
Latch signal output to the serial bus
Recording-protection claw detection input from the protection detection switch
Protect: “H”
Laser modulation switching signal output
Detection input from the limit switch
Sled limit-In: “L”
Write power ON/OFF output
In the state of spindle srvo lock from the CXD2562AR
Focus OK signal input from the CXD2652AR
“H” is input when focus is on
Data signal input/output pin with the backup memory
Clock signal output to the backup memory
Writing data transmission timing output to the CXD2652AR
Shared with the magnetic head ON/OFF output
Clock destination select pin US, Canadian: “L”, Except US, Canadian : “H”
Clock destination select pin US, Canadian: “H”, Except US, Canadian : “L”
LED control signal output for POWER ON/STANDBY indicator
Not used
Digital input select signal output
Control signal output to CONTROL A1 OUT terminal
Not used
Input source change input (A/D input)
Not used
Timer mode change input (A/D input)
Not used
Key input pin (A/D input)
Ground (Analog)
Key input pin (A/D input)
A/D reference voltage (Fixed at “H”)
+3.3V power supply
Monaural, stereo change input Monaural: “H”