Zenith ZHD-311 manuals

Zenith ZHD-311 User Manual (53 pages)

Brand: Zenith | Category: Portable DVD/Blu-Ray players | Size: 6.90 MB |

English

Table of contents

SERVICE MANUAL

1

[CONTENTS]

2

SECTION 1. GENERAL

3

1. Preparations

4

2. Notes for repair

4

ESD PRECAUTIONS

5

SPECIFICATIONS

6

SECTION 2. AUDIO PART

8

2. FRONT CIRCUIT (1/2)

9

3. FRONT CIRCUIT (2/2)

10

BLOCK DIAGRAM

12

SCHEMATIC DIAGRAMS

13

2. MICOM SCHEMATIC DIAGRAM

14

3. FRONT SCHEMATIC DIAGRAM

15

2-12 2-13

16

5. DSP SCHEMATIC DIAGRAM

17

2-16 2-17

18

WIRING DIAGRAM

19

2-20 2-21

20

2-22 2-23

21

3. FRONT P.C. BOARD

22

4. SMPS P.C. BOARD

23

LOCATION GUIDE

23

SECTION 3. DVD & AMP PART

24

2. Test & debug flow

25

2. SDRAM CLOCK

33

3. TRAY OPEN/CLOSE SIGNAL

34

1) Tray open/close waveform

34

2) Tray close waveform

34

3) Tray open waveform

35

8. FOCUS ON WAVEFORMS

39

11. RF WAVEFORM

41

(IC501 PIN 110)

42

FIG 12-1

42

(IC501 PIN 113)

42

FIG 12-2

42

1) Audio L/R

43

13. AUDIO OUTPUT FROM PWM IC

43

2) Audio related Signal

43

DVD PART SCHEMATIC DIAGRAMS

46

3-24 3-25

47

3. KARAOKE SCHEMATIC DIAGRAM

48

SECTION 4. EXPLODED VIEWS

50

NSP : Non SVC Parts

51

SECTION 5. SPEAKER SECTION

52

• MODEL : LHS-25SCW

53

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