Ic Block Diagram & Description - Sanyo MCD-Z165F Service Manual

R
IC BLOCK DIAGRAM & DESCRIPTION
L
IC901 LA9240M (Servo Signal Processor)
No. Pin Name Uo
Function
1 FIN2
I connection Pin for Photo Dbde of Pickup.
2
FIN1 I FIN2 + FIN1 = RF, FIN2- FIN1 = FE
3
E I connection Pin for Photo Diode of Pickup.
4 F I E- F=TE
5 TB
I
Input Pin for DC ingredient of TE Signal.
6 TE-
1 Connection Pin for Gain Setting Resistor of TE
Signal to TE Signal Pin.
7 TE
o
Output Pin for Tracking Error Signal.
8 TESI I Input Pin for Track Error Sense Comparator.
TE Signal through Band Pass, and Inputted.
9 Scl
I
Input Pin for Shock Detection.
10 TH I Connection Pin for Time constant Setting of
Tracking Gain.
11 TA
o
Output Pin for TA Amplifier.
I Connection Pin for Constant Tracking Phase
L '2 'D-
Mpen*on, consist of between TD and VR.
13 TD I Connection Pin for Constant of Tracking Phase
Compensation.
14 JP I Connection Pin for Amplitude Setting of Tracking
Jump (Kick Pulse) Signal.
15 TO
o
Output Pin for Tracking Control Signal.
16 FD
o
Output Pin for Focusing Control Signal.
17 FD- 1 Connection Pin for Constant of Focusing Phase
Compensation, Consist of between FD and FA.
18 FA+ I Connection Pin for Constant of Focusing Phase
Compensation, Consist of between FD- and FA-.
19 FA- 1 Cmwctiin Pin for Constant of Fccusing Phase
Compensation, Consist of between FA and FE.
a) FE
o O@P@ Pin for Fccusing Error Signal
21 FE- 1 connection Pin for Gain Setting Resistor of FE
Signal to FE Signal Pin.
22
AGND - Ground for Analog Signal.
L " w
o Output
Pin for Single End of Input Sgnal of the
CV+, CV- Pin.
24 SPI I Input Pin for Spindle Amplifier.
25 SPG
I
Connection Pin for Gain Setting Resistor, when
Spindle 12 CM MNe.
26
sP- 1 tinnaction Pin for Constant of Spindle Phase
Compensation with SPD Pin.
27 SPD
o Output
Pin for Spindle Control Signal.
z SLEQ
I
Connection Pin for Constant of Sled Phase
Compensation.
29 SLD o Output Pin for Sled Control Signal.
33 SL-
1 Input Pin for Sled Signal from Micro Processor.
31 SL+ I
z JP-
1 Input Pin for Traddng Jump Signal from Digital
33 JP+ I Signal Processor.
Jo. F
34
35
s
37
39
3
40
41
42
43
44
45
46
47
48
49
50
51
!32
53
54
t%
56
57
s
53
m
61
62
63
e4
>in Name Uo
Function
TGL
I Input Pin for Tracking Gain Control Signal from
Digital Signal Processor. TGL = H : Gain Low
TOFF I Input Pin for Tracking Oft Control Signal from Digital
Signal Processor. TOFF = H: OFF
TES o
Output Pin for Track Error Sense Signal to Digital
Signaf Prccessor.
HFL I High Frequency Level Signal Use Detection
Main-Beam Position is on the pit or mirror.
SLOF I Input Pin for Sled Servo Off Control.
cv- 1 Input Pin for Constant Linear Veloaty Error
Cv+ I Signal from Digital Signal Processor.
RFSM
o
Output Pin for RF Signal.
RFS- 1 Connection Pin for Gain Setting of RF and
Constant Setting of 3T Compensation of the
EFM Signal with RFSM Pin.
SLC
o Sfice
Level Control Signal is Output Pin.
It Control Level of Data-Slice by Digital Signal
Processor of the RF Waveform.
SU I Input Pin for Level Control of Data-Slice by
Digital Signal Processor.
DGND - Ground for Digital Signal.
FSC
o
Ou@ut Pin for Focus Search Smooth Condenser
TBC o Connection Pin for Variable Range Setting of
EF Balance.
NC - No connect
DEF
o
Output Pin for Defect Detection of Disc.
CLK I Input Pin for Reference Clock Pulse.
(4.23 MHz of Digital Signal Processor)
CL
I Input Pin of Clock Pulse for Command from
Micro Processor.
DAT I Input Pin of Data for Command from Micro
Processor.
CE
I Input Pin of Chip Enable for Command from Micro
Prmessor.
DRF
o
Output Pin for Detect of RF Level.
FSS I Select Pin for Focus Search Mode
VCC2
-
VCC for Servo and Digital Root.
REFI
I Bus Control Connection Pin for Reference Voltage.
VR
o
Output Pin for Reference Voltage.
LF2 I Connection Pin for Time Constant Setting of
Detect Detection of the Disc.
PH1 I Capacitor Connection Pin for Peak-hold of RF Sgnal.
BH1
I Capacitor Connection Pin for Bottom-hold of
RF Signal.
LDD o Output Pin of APC (Automatic Power Control) Circuit.
LDS I Input Pin of APC (Automatic Power Control) circuit.
Vccl
I VCC for RF Root.
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