Read Sony HCD-GN88D / MHC-GN88D Service Manual online
74
HCD-GN88D
• IC901 CXP973064-226R (MECHANISM CONTROLLER) (DBM03 Board)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14 to 21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43, 44
45
46
47
48
49
50
51
52
53
54
55
56
I/O
O
O
O
O
I/O
I
O
O
I
O
O
O
—
I/O
I
I
O
O
I
O
O
I
I
I
O
I
O
O
O
O
I
—
I
O
—
O
O
O
I
I
O
O
O
I
O
O
—
I
Pin Name
NO_USE
SDEN
DOCTRL/
ISBTEST
XRST_2753
SDA_EEP
MNT1
FCS_JMP_1
FCS_JMP_2
SENS_CD
CDSP2
CDSP4
XCS_DVD
VSS
D0 to D7
INIT0_DVD
INIT1_DVD
MSCK_SAMBA
XRST_1882
SCOR
LAT_CD
LD ON
MIRR
COUT_CD
INLIM
CS_ZIVA
SI_ZIVA
SO_ZIVA
SCK_ZIVA
DRVIRQ
DRVRDY
RST
VSS
XTAL
EXTAL
VDD
SLED_A, SLED_B
SCK_DSD
SDOUT_DSD
SDIN_DSD
READY_DSD
DATA_CD
CLOK_CD
XMSLAT
SQSO
MUTE_DSD
SQCK
VSS
CONTROL_2
Description
Not used (open)
Serial data enable signal output to CXD1881AR
Digital out on/off control signal output to CXD3068Q
Not used
Data bus with the EEPROM
EEPROM ready signal input from CXD1882R
Focus jump 1 signal output to the FAN8035L
Focus jump 2 signal output to the FAN8035L
Internal status (SENSE) signal input from CXD3068Q
Not used
Not used
Chip select signal output to CXD1882R
Ground
Two-way data bus with CXD1882R
Interrupt signal input from CXD1882R
Interrupt signal input from CXD1882R
Not used
Reset signal output to CXD1882R
Subcode sync (S0+S1) detection signal input from CXD3068Q
Serial data latch pulse signal output to CXD3068Q
Laser diode on/off control signal output to CXD1881AR
Mirror signal input from CXD1881AR
Numbers of track counted signal input from CXD1881AR
Detection signal input from limit in switch The optical pick-up is inner position when “H”
Chip select signal output to ZIVA5X-C1F
Serial data input from ZIVA5X-C1F
Serial data output to ZIVA5X-C1F
Serial data transfer clock signal output to ZIVA5X-C1F
Interrupt request signal output to ZIVA5X-C1F
Ready signal output to ZIVA5X-C1F
System reset signal input from ZIVA5X-C1F
Ground
System clock input terminal (20 MHz)
System clock output terminal (20 MHz)
Power supply (+3.3V)
Sled motor drive signal output to FAN8035L
Clock output to CXD1882R
Serial data output (Not used)
Serial data input (Not used)
Ready signal input (Not used)
Serial data output to CXD3068Q
Serial data transfer clock signal output to CXD3068Q
Serial data latch pulse signal (Not used)
Subcode Q data input from CXD1882R
Muting on/off control signal (Not used)
Subcode Q data reading clock signal output to CXD1882R
Ground
Not used
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