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Block Diagram - LG CRD-8161B Service Manual

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IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION
IC102 (CXA2556Q) : RF Amplifier IC
I-V convertes and amplifies the signal by receiving, from the Pick-up, and than applies to DSP &
SSP IC (IC501).

Block Diagram

32
LD
1
PD
2
3
A
B
4
APC ON
1k
C
5
D
6
7
GND
GND
NC
8
9
30
31
LPF
HPF
VS
44k 39k
18k
VC
56k
10k
1.25V
56k
10k
VC
55k
VC
40k
40k
VCR
40k
10k
40k
VCR
11
10
29
28
VCR
CONTROL
CONTROL
DELAY
MIXER
Vcc
BOOST
VC
44p
HOLD
PEAK
/BOT
10P
VC
10k
MODE1
VC
20k
40k
1.25V
32k
40k
32k
32k
VC
32k
73.34k
320k
164k
2p
12
13
27
26
BOOST
FILTER
CONTROL
LPF
VCR
80k
80k
20k
80k
22k
80k
51k
1.25V
Vcc
VC
Vcc
40k
20k
40k
VC
87k
187k
18.3p
14
15
25
24
MODE 1
MODE
SW
23
MODE 2
22
RFO 1
21
RFO 2
Vcc
20
Vcc
19
MIRR
18
CP
MIRR T
17
16
13

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