LG XA66 Manual page 18

Owner's manual (20 pages)

Service manual (47 pages)

Table of Contents

.................................................................................................................................................... 3-2

1. SMPS 부 ................................................................................................................................................ 3-2

2. 음소거 ..................................................................................................................................................... 3-3

3. 음성 비정상 ............................................................................................................................................ 3-4

4. 음성 동작 모드 ....................................................................................................................................... 3-5

5. IC301 진단 ............................................................................................................................................. 3-6

6. IC600 진단 ............................................................................................................................................. 3-7

7. IC601 진단 ............................................................................................................................................. 3-8

8. IC603 진단 ............................................................................................................................................. 3-8

9. U503 진단 .............................................................................................................................................. 3-9

10. TU101 FM 튜너 모듈 ............................................................................................................................. 3-9

11. CD 부 ................................................................................................................................................... 3-10

12. CD 읽기 점검 ....................................................................................................................................... 3-11

13. USB 부 ................................................................................................................................................. 3-12

파 형

............................................................................................................................................................... 3-13

1. CD 찾기 파형 ....................................................................................................................................... 3-13

2. 스핀들 드라이브 및 모터 파형 ............................................................................................................. 3-13

3. CD 재생 파형 ....................................................................................................................................... 3-14

4. CD 멈춤 동작 파형 ............................................................................................................................... 3-15

5. CD 읽기 파형 ....................................................................................................................................... 3-15

6. CD 재생 RF 파형 ................................................................................................................................. 3-16

7. USB 동작 파형 ..................................................................................................................................... 3-17

8. 라디오 동작 파형 .................................................................................................................................. 3-17

포선도

............................................................................................................................................................. 3-19

블록도

............................................................................................................................................................. 3-21

1. 메인 블록도 .......................................................................................................................................... 3-21

2. CD 블록도 ............................................................................................................................................ 3-23

회로도

............................................................................................................................................................. 3-25

1. SMPS 회로도 ....................................................................................................................................... 3-25

2. 디코드(DECODE) 회로도 .................................................................................................................... 3-27

3. CD 서보(SERVO) 회로도 .................................................................................................................... 3-29

4. 디스플레이 회로도................................................................................................................................ 3-31

5. 튜너 회로도 .......................................................................................................................................... 3-33

6. 앰프 회로도 .......................................................................................................................................... 3-35

전압표

............................................................................................................................................................. 3-37

부품 배치도

.................................................................................................................................................. 3-41

1. 메인 부품 배치도 .................................................................................................................................. 3-41

2. SMPS 부품 배치도 ............................................................................................................................... 3-43

3. MCU 부품 배치도 ................................................................................................................................ 3-44

4. 키 부품 배치도 ..................................................................................................................................... 3-45

5. 프론트 부품 배치도 .............................................................................................................................. 3-46

6. 이어폰 부품 배치도 .............................................................................................................................. 3-46

제 3 장 회 로 부

목 차

3-1

Table of Contents