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Q Q
3 7 6 3 1 5 1 5 0
6-24. WAVEFORMS
– MAIN Section –
1
3
IC2 ws (XOUT)
IC501 ea (EXTAL)
5.5Vp-p
10 MHz
75 kHz
4.8Vp-p
2
IC401 ea (EXTAL)
10 MHz
4.8Vp-p
– BD Section –
1
5
IC101 ra (RFSM)TP(RF)
IC102 rf (XOUT)X101
T E
L
1 3 9 4 2 2 9 6 5 1 3
5.2Vp-p
1.7Vp-p
16.9344 MHz
2
6
IC101 w; (FE)
IC102 y; (16M)
(PLAY MODE)
0.5Vp-p
5.3Vp-p
16.9344 MHz
7
3
IC102 ya (4.2M)
IC101 7 (TE)TP(TE)
0.4Vp-p
5Vp-p
4.2336 MHz
4
IC102 wa (PCK)TP(PLCK)
5.2Vp-p
230ns
w w w
– PANEL Section –
1
IC601 8 (X-OUT)
8MHz
4.2Vp-p
x
a o
y
.
i
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8
6-25. IC PIN FUNCTION DESCRIPTION
BD BOARD IC101 LA9240M (FOCUS/TRACKING/SLED SERVO, RF AMP)
Pin No.
Pin Name
1
FIN2
2
FIN1
3
E
4
F
5
TB
6
TE–
7
TE
8
TESI
9
SCI
10
TH
11
TA
12
TD–
13
TD
14
JP
15
TO
16
FD
17
FD–
18
FA
19
FA–
20
FE
Q
Q
21
FE–
3
7
6
3
22
AGND
23
SP
24
SPI
25
SPG
26
SP–
27
SPD
28
SLEQ
29
SLD
30
SL–
31
SL+
32
JP–
33
JP+
34
TGL
35
TOFF
36
TES
37
HFL
u 1 6 3
.
48
48
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2
4
9
9
8
I/O
Function
Connected to the pick-up photodiode
I
Added with FIN1 to create RF signal, subtracted with FIN1 to create FE signal
I
Connected to the pick-up photodiode
I
Connected to the pick-up photodiode Subtracted with F to create TE signal
I
Connected to the pick-up photodiode
I
DC component of the TE signal is input
I
Connects the TE signal gain setting resistor between TE pins
O
TE signal output
I
TES (Track Error Sense) comparator input. The TE signal is band-passed and input
I
Shock detection input
I
Tracking gain time constant setting
O
TA amplifier output
I
Creates a tracking phase compensation constant between TD and VR pins
O
Tracking phase compensation setting
I
Tracking jump signal (kick pulse) amplitude setting
O
Tracking control signal output
O
Focusing control signal output
I
Creates a focusing phase compensation constant between FD and FA pins
O
Creates a focusing phase compensation constant between FD- and FA- pins
I
Creates a focusing phase compensation constant between FA and FE pins
O
FE signal output
I
Connects the FE signal gain setting resistor between TE pins
1
5
1
5
0
8
9
2
4
—
Analog signal Ground
O
Single end output of CV+ and CV- pin signal
I
Spindle amplifier input
I
Gain setting resistor is connected when the spindle 12cm mode
I
Works together with the SPD pin to connect to the spindle phase compensation constant
O
Spindle control signal output
I
Sled phase compensation constant is connected
O
Sled control signal output
I
Sled feeding signal is input from the microprocessor
I
Sled feeding signal is input from the microprocessor
I
Tracking jump signal is input from the DSP
I
Tracking jump signal is input from the DSP
I
Tracking gain control signal is input from the DSP Gain becomes low when TGL is "H"
Tracking off control signal is input from the DSP
I
Tracking becomes off when TOFF is "H"
O
Outputs TES signal to the DSP
HFL (High Frequency Level) is used to determine whether the main beam is
O
positioned on a pit or a mirror
m
c o
2
9
9
9
8
2
9
9
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