LG LX-D2640 Service Manual page 17

MAIN PART
1. FUNCTION IC TDA7468D IC601
Pin NO. Symbol
1 VDD DC +9V
2 MIC MIC
3 IN-L1 TAPE-L
4 IN-L2 TUNER-L
5 IN-L3 AUX-L
6 IN-L4 CD-L
7 MUX-L MUX-L
8 IS-L IS-L
9 TREBLE-L TREBLE-L
10 BASS I-L BASS I-L
11 BASS O-L BASS O-L
12 OUT-L OUT-L
13 DGND DGND
14 SCL SCL
15 SDA SDA
16 ALC ALC
17 OUT-R OUT-R
18 BASS O-R BASS O-R
19 BASS I-R BASS I-R
20 TREBLE-R TREBLE-R
21 IS-R IS-R
22 MUX-R MUX-R
23 IN-R4 CD-R
24 IN-R3 AUX-R
25 IN-R2 TUNER-R
26 IN-R1 TAPE-R
27 CREF CREF
28 GND GND
2. NJM2267M IC605
1 Vin 1 -
2 GND GND
3 Vsag 1 -
4 Vout 1 -
5 Vout 2 Vout 2
6 Vsag 2 Vsag 2
7 VCC VCC
8 Vin2 Vin2
3. TC4052 IC603
1 AUX1_R
2 GND
3 OUT_1
4 GND
5 AUX2_R
6 GND
7 VSS
8 GND
9 GND
10 AUX1/2
11 GND
12 AUX1_L
13 OUT_L
14 AUX2_L
15 GND
16 VDD
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Description
DC 11V
MIC signal input PORT.
TAPE L-CH signal input PORT.
TUNER L-CH signal input PORT.
AUX L-CH signal input PORT.
CD L-CH signal input PORT.
L-CH REC signal output PORT.
L-CH SURROUND signal input PORT.
L-CH TREBLE driving external constant PORT.
L-CH BASS driving external constant PORT.
L-CH BASS driving external constant PORT.
Function IC L-CH finer OUTPUT PORT.
DGND
CLOCK signal input PORT.
DATA signal input PORT.
ALC TIMING driving external constant PORT.
Function IC R-CH finer OUTPUT PORT.
R-CH BASS driving external constant PORT.
R-CH BASS driving external constant PORT.
R-CH TREBLE driving external constant PORT.
R-CH SURROUND signal input PORT.
R-CH REC signal output PORT.
R-CH CD signal input PORT.
R-CH AUX signal input PORT.
R-CH TUNER signal input PORT.
R-CH TAPE signal input PORT.
Repple Rejection Capacitor connected PORT.
GND
Input Clamp Terminal
GND
SAG Correction
Video Output1
Video Output1
SAG Correction
Supply Voltage
Input Clamp Terminal
AUX1SIGNAL _ R-CH INPUT PORT.
GND
AUXSIGNAL _ R-CH OUTPUT PORT.
GND
AUX2SIGNAL _ R-CH INPUT PORT.
GND
DC -6V
GND
GND
MICOM CONTROL PORT.
GND
AUX1SIGNAL _ L-CH INPUT PORT.
AUXSIGNAL _ L-CH OUTPUT PORT.
AUX2SIGNAL _ L-CH INPUT PORT.
GND
DC +6V
- 2-10 -
(V) Remarks
10
5 I
5 I
5 I
5 I
5 I
5 O
5 I
5 O
5 I
5 O
5 O
0
0 I
0 I
5 O
5 O
5 O
5 I
5 O
5 I
5 O
5 I
5 I
5 I
5 I
5 -
0
1.9
0
1.6
1.5
1.5
1.6
4.9
1.9
0
0
0
0
0
0
-6
0
0
0
0
0
0
0
0
5.9