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IC BLOCK
DIAGRAM (CD)
1€101
LA9210M (Servo Signal Processor)
FUNCTION
= o
FUNCTION
Non Connection
|213|
ei
bos
i PIA
4
Fe
alo
- Input of Track Jump Pulse Amplifier
+ Input of Track Jump
Pulse Ampi'fier
Hold of Output Voltage of Tracking Servo
|
| Tracking Gain Low
Input For Off the Tracking Servo
Tracking Error Signal
Detect Track Signal
| o |
| 0 |
wes
Detect S Carve of Focus Error Signal
pe
Input For Off the Focus Servo
ia
- Input of CLV Error Amplifier
| civ+
[ot | + Input of CLV Error Amplifier
a
Slice Level Control Amplifier Output
MO (RF) Signal
MO (RF) Signal
=
No
4 wn
i
=|
Bpw
PA-
=
wi
mim
nin
== an
= ~N
+ Input of VCO Control Amplifier
- Input of VCO Control Amplifier
VCO Control Amplifier Output
VCO Output
Input of Low Pass Filter
Clock
Laser Control Signal
Select of DSP LC7866/LC7860
Non Connection
Input for Defect Pulse width Control
Input for Defect Pulse width Control
Defect Detect Timing
Track Detect Timing
Focus Detect Timing
Ground
RF SUM Amplifier Output
IV Converter Output
Laser Diode ON
NuJo
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is vu e)
0
N
=
foal
= s/A}lala
Og S/Z/O/z
o
ro) +19]
R12
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ct
> oO
4
=
gy
ial x
=
Cc
3
wo Uv Cc
w
oO
+
wn
<
a 'na
2 n B ma oS
| 64 |
| 65 | Nc |
| 66 |
Ww
=
sfal2
(ee)
=
3] GC)
a 2 rt ro)
8 N
Zz
mn
"n ic
s
LDO
Sled Motor
Driver Output
Input of Auto Laser Power Control
Input of Auto Laser Power
Control
| O |
Lt
Lt
| von [| sv
ete
Lt |
Bi
<=
im) io)
WEW]W]
WW]
WwW
NI
OfO)
Rlwin
wo
LSW
Be
Sled Servo Switch
EFO
| O | Defect Signal Output
FREQ
Input for VCO
RF
Ea
Focusing Servo ON : High Level
IV Convert Input (From Photo Diode
A +C)
IV Convert Input (From Photo Diode B+D)
Reference Voltage 1
Wik
Oo
-20-
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