Service Manuals, User Guides, Schematic Diagrams or docs for : LG Audio CD-962A CD962IC
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INTERNAL BLOCK DIAGRAM OF ICs
s KIA6058
VCC
TO
IF AMP
3 4 6 9
B.P.F BUFFER AMP 8
LOCAL OSC
IN 1 RF AMP MIX 7
BIAS REG.
2 5
s LA1831
24 23 22 21 20 19 18 17 16 15 14 13
ALC AM AM DECODER
AM
MIX RF-AMP STEREO
OSC
AGC MUTE SW
BUFF
STEREO DRIVE
TRIG
AM
AM
DET
IF FF FF FF
LEVEL
AM/FM
DET COMP VCO
IF
S-CURVE BUFF PILOT
AM/FM DET
TUNING SW
FM FM DRIVE PHASE DET
AM
IF DET
FM
GND
REG VCC
1 2 3 4 5 6 7 8 9 10 11 12
22
s KIA6289N
22 21 20 19 18 17 16 15
Ch1/B NF
Ch2
23 A/B 14
1000pF
Ch2/A
Vref2
ALC
Vref1
Vref
Ch2
24 13
Ch1/A ALC
1 Ch1
GND
12
Ch1/B
Ch1 Rec
2 M/N 11
1000pF
3 4 5 6 7 8 9 10
NF Metal Pre Mix GND1 M/N REC NF
Out Out Out Out
s TDA7439
MUXOUTL INL TREBLE(L) MIN(L) MOUT(L) BIN(L) BOUT(L)
11 15 16 27 26 25 23 24
L-IN1
100K RM RB
12
L-IN2
100K
SPKR ATT 6
13 G VOLUME TREBLE MIDDLE BASS LOUT
L-IN3 LEFT
100K
14
L-IN4
100K 29
0/30dB 2 SCL
2dB STEP I CBUS DECODER + LATCHES 30
10 SDA
R-IN1 1
DIG_GND
100K
9
R-IN2
100K SPKR ATT 5
G VOLUME TREBLE MIDDLE BASS ROUT
RIGHT
8
R-IN3 VREF
100K
3
7 VS
R-IN4 INPUT MULTIPLEXER SUPPLY 4
RM RB AGND
100K +GAIN
17 18 28 19 20 21 22 2
MUXOUTR INR TREBLE(R) MIN(R) MOUT(R) BIN(R) BOUT(R) CREF D95AU342A
23
s LC72131
XOUT
AOUT
AMIN
FMIN
IFIN
VDD
Vss
AIN
IO2
NC
PD
22 21 20 19 18 17 16 15 14 13 12
1 2 3 4 5 6 7 8 9 10 11
X IN
NC
CE
DI
CL
DO
BO1
BO2
BO3
BO4
IO1
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
24
s LA4663
+5V
VCC
5 7 8
SIGNAL STAND BY VCC 1 VCC 2
MUTE
6
+5
CH 1
+OUT1 8
14
IN1 **
2 PWR
Output Amp
GND1 13
12 **
Input Amp -OUT1
PRE OUTPUT-GND SHORT
OUTPUT-VCC SHORT
**
GND POLYESTER
3 RL SHORT FILM
THERMAL SHUTDOWN CAPACITOR
PROTECTION CIRCUITS
+OUT2 8
Input Amp
9
IN2 **
4 Output Amp PWR
GND2 10
11
**
-OUT2
CH 2
Ripple Filter/
Starting Time
1
25
s 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
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