Text preview for : Circuit diagram 12.3 Stereo 7KY_820.pdf part of LG Circuit diagram 12.3 Stereo 7KY 820 LG 1BEKO Circuit diagram 12.3 Stereo 7KY_820.pdf



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12.3 CTV CHASSIS




7KY .820
SK101
R159 R160 X315
1




1
2
L108 330R 100R MSP_RES
IC316
2
STEREO MODULE




3
3.3uH C150 C151 STBY/MUTE
T100 IC315 1 64 C352
1nF 1nF




4
TUNER 15 AUD_CLO NC7 1.5pF
GND4 3 SCL 78L05




5
L316
14 2 63




6
GND3 B_SCRT R161 R162 IN OUT NC1 XTAL_OUT Q315
4 SDA




7
13 STA T1 10uH
GND2 C148 R163 GND 3 62 C353




8
330R 100R L320 C342 NC2 XTAL_IN 1.5pF
12 220p 75R 5




9
GND1




10
C152 C153 2.2uH 4 61 18.432MHz
G_SCRT C343 DCTROUT1 TESTEN C354 +13V
6 2.2nF




11
1nF 1nF +13V STBY/MUTE
5 60 C395 C373




12
DCTRO0 ANA_IN2+ 100p C336
R164 7 C355




+33V
AGC
F401 2.2uF / 16V




SDA
SCL




13
+5V


+5V


NC




IF1


IF2
+5V C 75R R165 C344 C317 C323 C346 6 59 1nF




14
T40.4 2.2nF ADR_SEL ANA_IN- 10nF J309
R_SCRT 8 C375 L319 X940 47n/100V X941




15
-13V 10nF
R436 F_BLSC 1K 47uF 47nF 1nF 220pF 7 58 C357 2.2uH 3 R941 3




16
STBYQ ANA_IN1+ INTRC/QSS 15 17 R943




12
1


2


3


4


5


6


7


8


9


10


11
2K7 IF2 R152 R166 9 16V 100nF C941
F402 C154 C155 C376 180R




17
R153 +8V A 100pF 5 390R
T40.4 75R 75R 220p 470p X102 8 57 IC317 100nF 2 2




18
NC3 AVSUP 9




HEADPHONE




HEADPHONE JACK
AGC IF1 CVBS_OUT_SC1 10
12 C345




19
68R INTRC/QSS R321 100R C356 16 1 R940 C940 1
R437 9 56 47uF R942




20
C433 +33V R167 SCL AVSS 10nF C383 R329 14 390R
39K 11 11 16V C381 C387 180R