38
Anti-reverse input terminal for RF summing amplifier.
34
RF-M
I
The gain of RF amplifier is decided by the connection resistance between RF-M and RF-O
terminals.
35
RFTC
I
This is a pin where the selection time constant is externally connected to control the RF level.
36
LD
O
APC amplifier output terminal.
37
PD
I
APC amplifier input terminal.
RFI-V amplifier inverted input pin.
38 ~ 39
PD1 ~ PD2
I
These pins are connected to the A+C and B+C pins of the optical pickup, receiving by currents
input.
40
FEBIAS
I/O
Bias adjustment pin of the focus error amplifier.
41 ~ 42
F ~ E
I
F and EIV amplifier inverted input pins.
These pins are connected to the F and E of the optical pickup, receiving by current input.
43
EI
Gain adjustment pin of the I-V amplifier E. (When not in use of BAL automatic adjustment)
44
VEE
GND connection pin.
45
TEO
O
Output terminal for tacking-error amplifier. Output E-F signal.
46
LPFI
I
BAL adjustment comparator input pin. (Input through LPF from TEO)
47
TEI
I
Input terminal for tracking error.
48
ATSC
I
Window-comparator input terminal for detecting ATSC.
49
TZC
I
Input terminal for tracking-zero cross comparator.
50
TDFCT
I
Capacitor connection pin for the time constant used when there is defect.
51
VC
O
Output terminal for DC voltage reduced to half of VCC+VEE.
52
FZC
I
Input terminal for focus-zero cross comparator.
Pin No.
Pin Name
I/O
Description
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9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
