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Pin Description - LG CRD-8161B Service Manual

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IC102 CXA2556Q

Pin Description

Pin No.
Symbol
1
LD
2
PD
3
A
4
B
5
C
6
D
7
GND
8
NC
9
E
10
F
11
TEI
12
TEC
13
TE
14
FEB
15
FE
16
VC
17
MIRR T
18
CP
19
MIRR
20
Vcc
21
RFO2
22
RFO1
23
MODE 2
24
MODE 1
25
APC ON
26
FCC
27
BSTC
28
RFC
29
EQIN
30
SUMOUT
31
RFI
32
RFO
14
I/O
O
APC Amp output
I
APC Amp Intput
I
RF Summing Amp,
I
Focus Error Amp Input
I
I
GND
No Connect
I
Tracking Error Amp Input. (9, 10)
I
O
Tracking Error Amp Output. (11)
I
Control Tracking Error Low Frequency Gain (12)
O
Tracking Error Amp Output (13)
O
Adjust Focus Bias
O
Focus Error Amp Output
O
(Vcc+GND)/2
I
Control Peak Hold Value
I
Mirror Hold Capacitor Input
Mirror Comparator non Invertor Input
O
Mirror Comparator Output
Vcc
O
Buffer Switch Output (Control in 23 and 24 pin)
O
RF Equalizer Output
Control Velocity
I
MODE 1
x1
GND
xN
Vcc
I
x1.5N
GND
x2.0N
Vcc
I
APC Amp on /off Switching
I
RF Equalizer LPF Cutoff Frequency Setting Pin
I
RF Equalizer High Frequency Boost Setting Pin
I
RF Amp, RF Equalizer Low Frequency Gain Setting Pin
I
RF Equalizer Input
O
RF Summing Amp Invertor output
I
Mirror Circuit Input
O
RF Signal Output
Description
MODE 2
GND
GND
Vcc
Vcc

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