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INTERNAL BLOCK DIAGRAM OF ICs
BA3126N




1 2 3 4 5 6 7 8 9
REC SW GND P/B SW CONT GND VCC P/B SW GND REC SW


KA3010D
28 27 26 25 24 23 22 21 20 19 18 17 16 15
BUY




BUY
10K




10K
LEVEL
SHIFT LEVEL
TSD SHIFT



REGULATOR
MUTE LEVEL
LEVEL SHIFT
10K




SHIFT
50K




10K




50K
100K
BUY


10K




1 2 3 4 5 6 7 8 9 10 11 12 13 14




KIA7805 P/PI ~ KIA7824P/PI KIA6225S
1 INPUT
R13
R8




R9




Q8
2
Q9
Q16
R18
R4




Q17
R 21 OUT1
Q 14
R12 IN1
AMP 1 3
Q15 1
R17


R11




Q12 Vcc
REGULATED
Q10 2 OUTPUT 5 GND VOLTAGE 4
R5




CIRCUIT
Q6
Q13
R20




Q5 8
R16




IN2 OUT2
AMP 2 6
R




Z1 Q11
R6




R1




R2




C1
Q7 7
R19




Q4
Q1 Q2 Q3
R7




R10




R14




3 GND


- 27 -
LC72131, 72131M

XIN REFERENCE PHASE DETECTOR PD
DIVIDER CHARGE PUMP
XOUT

AIN
1 SWALLOW COUNTER UNLOCK
FMIN AOUT
2 1/16. 1/17 4bits DETECTOR




AMIN 12bits PROGRAMMABLE
DIVIDER


CE


DI C2 B DATA SHIFT REGISTER UNIVERSAL IFIN
I/F LATCH COUNTER

CL


D0

POWER
VDD ON
RESET

VSS




B01 B02 B03 B04 I01 I02




TDA7440D

MUXOUTL INL TREBLE(L) BIN(L) BOUT(L)
4 8 9 18 14 15
L-IN1
100K RB
5
L-IN2
100K
SPKR ATT 27
6 G VOLUME TREBLE BASS LOUT
L-IN3 LEFT
100K

7
L-IN4
100K 21
0/30dB 2 SCL
2dB STEP I CBUS DECODER + LATCHES 22
3 SDA
R-IN1 20
DIG_GND
100K
2
R-IN2
100K SPKR ATT 26
G VOLUME TREBLE BASS ROUT
RIGHT
1
R-IN3 VREF
100K
24
28 VS
R-IN4 INPUT MULTIPLEXER SUPPLY 25
RB AGND
100K +GAIN

10 11 19 12 13 23
MUXOUTR INR TREBLE(R) BIN(R) BOUT(R) CREF D98AU883




- 28 -
KB9223 80-QFP-1420C


OVERVIEW
The KB9223 is a 1-chip BICMOS intergrated circuit to perform the
function of RF AMP and Servo signal processor for compact disc
player application. It consist of blocks for RF signal processing,
focus, tracking, sled and spindle servo. Also this IC has adjustment
free function and embeded opamp for audio post filter. #1


FEATURES