Sony MXD-D4 Service Manual page 78

Pin No. Pin Name
31 NC
32 XINT
33 NC
34 XLET (CL1P)
35 WRPWR
36 CLK (IIC)
37 SDA (IIC)
SWDT
38
(DSP/ADDA)
39 VCC
40 SRDT (DSP)
41 VSS
SCLK
42
(DSP/ADDA)
43 REC-SW
44 TX0 (CL1P)
45 RX0 (CL1P)
46 CLK0 (CL1P)
47 DIG-RST
48 SENS
49 PLAY-SW
50 XLATCH
51 OUT-SW
52
NC
53
NC
54 NC
55
NC
56 MNT2 (XBUSY)
57 VSS
58 MNT1 (SHOCK)
59 VCC
60 EEP-WP
61 SDA
62
NC
63 OE
64
BHE
65 WE
66 SCL
67 REFLECT SW
68 PROTECT SW
69 CS0
70 CS1
71, 72 NC
73 A19
78
I/O
O Not used (open)
I Interrupt status input from the CXD2662R (IC151)
O Not used (open)
O Not used (open)
Laser power select signal output to the CXD2662R (IC151) and HF module switch circuit
O
"L": playback mode, "H": recording mode
Communication data reading clock signal output or transfer clock signal input with the CD
I/O
mechanism controller (IC800)
I/O
Communication data bus with the CD mechanism controller (IC800)
O
Writing data output to the CXD2662R (IC151)
— Power supply terminal (+3.5V)
I Reading data input from the CXD2662R (IC151)
— Ground terminal
O
Serial clock signal output to the CXD2662R (IC151)
I
Detection input from the recording position detect switch (S105) "L" active
O Serial data output terminal Not used (fixed at "L")
I Serial data input terminal Not used (fixed at "H")
O Serial clock signal output terminal Not used (open)
O
Reset signal output to the CXD2662R (IC151) and BH6511FS (IC152) "L": reset
I Internal status (SENSE) input from the CXD2662R (IC151)
I Detection input from the playback position detect switch (S104) "L" active
O Serial data latch pulse signal output to the CXD2662R (IC151)
Detection input from the loading-out detect switch (S103)
I
"L" at a load-out position, others: "H"
O Not used (fixed at "H")
O Not used (open)
O Not used (fixed at "H")
O Not used (open)
I
Busy signal input from the CXD2662R (IC151)
— Ground terminal
I Track jump detection signal input from the CXD2662R (IC151)
— Power supply terminal (+3.5V)
O
Writing protect signal output to the EEPROM (IC195)
I/O
Two-way data bus with the EEPROM (IC195)
O Not used (open)
O
Data reading strobe signal output to the flash ROM (IC802)
O Not used (open)
O Writing enable signal output to the flash ROM (IC802) "L" active
O
Clock signal output to the EEPROM (IC195)
Detection input from the disc reflection rate detect switch (S102-1)
I
"L": high reflection rate disc, "H": low reflection rate disc
I
Rec-proof claw detect input from the protect detect switch (S102-2) "H": write protect
O
Chip select signal output to the flash ROM (IC802)
O Not used (open)
O Not used (open)
O
Address signal output to the flash ROM (IC802)
Description