LG LX-D2640, Service Manual

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