Drive Control Pin Function (Mb-75 Board Ic136) - Sony dvp-s3000 Service Manual
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Also See for dvp-s3000:
- Operating instructions manual (105 pages) ,
- Manual (54 pages) ,
- Training manual (108 pages)
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5-2. DRIVE CONTROL PIN FUNCTION (IC136 on MB-80 Board (3/12))
Pin No.
Pin Name
I/O
1
VCC
–
Power supply
2
MRST
O
Peripheral circuits reset signal (L: Reset)
3
12 RST
O
12V system power control signal
4
CD DET
I
Input of DVD/CD discriminate sensor
5
TRAY OUT
I
Tray out end (H: End)
6
CHUCK
I
Chucking down end (H: End)
7
LOCK
I
Good Frame Sync dat (H: OK, L: NG)
8
XPNM
I
RF Pro PLL Mode (L: Normal)
9
FOK
I
Focus OK (H: OK, L: NG)
10
N.C.
–
Not used
11
VSS
–
Ground
12
CPDTO
O
Serial data output to each IC
13
SDCS (SO)
O
Serial data output to jig
14
CPDTI
I
Serial data input from each IC
15
SDSC (SI)
I
Serial data input from jig
16
CPCK
O
Serial clock to each IC
17
SCKCS
O
Serial clock to jig
18–21
D0–3
I/O
Data bus 0–3
22
VSS
–
Ground
23–25
D4–6
I/O
Data bus 4–6
26–34
D7–15
I/O
Data bus 7–15
35
VCC
–
Power supply
36–43
A0–7
O
Address bus 0–7
44
VSS
–
Ground
45–50
A8–13
O
Address bus 8–13
51–56
A14–19
O
Address bus 14–19
57
VSS
–
Ground
58
WAIT
I
WAIT signal (fixed to "H")
59
BREQ
I
Input of bus request
60
BACK
O
Output of bus ACK
61
SYS CLK
O
Output of system clock (for check)
62
STBY
I
Fixed to "H"
63
RES
I
Input of Reset by SH (L: Reset)
64
NMI
I
Fixed to "L"
Function
Pin No.
Pin Name
I/O
65
VSS
–
Ground
66
EXTAL
I
Input of 16.9MHz
67
XTAL
I
Input of 16.9MHz
68
VCC
–
Power supply
69
AS
O
Address strobe
70
RD
O
Read
71
HWR
O
H_Write
72
LWR
O
L_Write
73–75
MD0–2
I
Operation mode setting (Mode 2)
76
A VCC
–
Power supply
77
VREF
–
Reference voltage
78
N.C.
–
Not used
79
HYDET1
I
Input of sled FG2
80
P FAIL
I
Power down pre signal
81
PI
I
Input of pull–in signal
82
SLD2–
I
Input of sled offset
83
SLD2+
I
Input of sled offset
84
VCOM
I
Input of VCO adjustment
85
JIG BUSY
I
Serial busy signal from Jig
86
A VSS
–
Ground
87
SCOR
I
CXD2545 address storing request signal
88
INT-SC
I
Serial data
89
SOINT
I
Jitter storing request signal
90
SYS_INT
I
Interrupt request signal from Syscon
91
ROM BUSY
I
EEPROM Ready/Busy signal
92
VSS
I
Ground
93
TKC
I
Input of sled FG count
94
FCMPL
I
FEZC Low det
95
FCMPH
O
FEZC High det
96
SENS
I
Input of SENS signal
97
HFG
I
Input of spindle FG
98
DVDLDON
O
LD ON/OFF control for DVD
99
CDLCON
O
LD ON/OFF control for CD
100
LT MUTE
O
Function
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