Samsung MAX-870 Service Manual page 63

Block Diagrams
LC72131 : TIC2
TDA7439: FIC2
L-N1
L-N2
L-N3
L-N4
R-N1
R-N2
R-N3
R-N4
9-4
XIN
1
XOUT
22
1/2
FMIN
16
AMIN
15
CE
3
2
DI
4
C B
1/F
CL
5
DO
6
P0WER
VDD
17
ON
RESET
Vss
21
7
BO1
11
100K
12
100K
13
G
100K
14
100K
0/30dB
10 2dB STEP
100K
9
100K
G
8
100K
7
INPUT MULTIPLEXER
100K GAIN
PHASE DETECTOR
REFERENCE
DIVIDER CHARGE PUMP
SWALLOW COUNTER
1/16, 1/17 4D1ts
12bita PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER
LATCH
8 9 10 11
BO2 BO3 BO4 IO1
15 16 26 25
27
R
VOLUME TREBLE MIDDLE
2
I CBUS DECDER + LATCHES
VOLUME TREBLE MIDDLE
R
17 18 20 19 20
18 PD
19 AIN
UNLOCK
20 ADUT
DETECTOR
UNIVERSAL
12 IFIN
COUNTER
13
IO2
23 24
R
SPKR ATT
BASS
L OUT
LEFT
6
30
SCL
1
SDA
29
DIGGND
5
SPKR ATT
BASS R OUT
RIGHT
Verf
3
V
3
4
R AGND
21 22 2
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