Zenith DP5 manuals

Zenith DP5 Service Manual (156 pages)

Brand: Zenith | Category: Cassette players | Size: 15.43 MB |

English

Table of contents

SERVICE MANUAL

1

SECTION 1

2

A.C. Voltmeter

3

SERVICING PRECAUTIONS

4

SPECIFICATIONS

5

LOCATION OF CUSTOMER CONTROLS

6

REMOTE CONTROL

7

SECTION 2

8

CABINET & MAIN CHASSIS

8

• Speaker Section Part List

11

4. Packing Accessory Section

12

SECTION 3

13

ELECTRICAL

13

VCR PART

14

1. Power(SMPS) CIRCUIT

15

2. SYSTEM/KEY CIRCUIT

17

(1) AUTO STOP

17

Caution :

17

3. SERVO CIRCUIT

18

(1) Unstable Video in PB MODE

18

(2) When the Drum Motor

18

(2) doesn’t run

18

2. SERVO CIRCUIT

19

(4) KEY doesn’t working

20

4. OSD Screen abnormal

21

5. F.OSD Screen abnormal

21

6. Y/C Circuit

22

3. Y/C CIRCUIT

23

7. Hi-Fi CIRCUIT

26

(1) No Sound(EE Mode)

26

(2) Hi-Fi Playback

27

9. Tuner/IF CIRCUIT

32

(2) No Sound

33

DVD PART

35

B. Audio abnormal

36

D. Open/Close abnormal

36

C. Video abnormal

36

E. Picture abnormal

37

F. Disc Error

37

_ OPTION

38

_ If included VCD function

38

3. RF/Servo Circuit

39

Check IC2A1 Pin3

42

BLOCK DIAGRAMS

43

3. AUDIO BLOCK DIAGRAM

45

4. MPEG Block Diagram

46

AMP PART

47

INTERNAL BLOCK DIAGRAM OF ICs

49

3-24 3-25

52

DT-587M's

52

KOR:MSP3407

53

USA:MSP3425

53

HA118717NF

54

3-30 3-31

55

(PB MODE)

55

(REC MODE)

55

6. Hi-Fi BLOCK DIAGRAM

56

7. SYSTEM BLOCK DIAGRAM

57

CIRCUIT DIAGRAMS

58

3-38 3-39

59

EE MODE(VIDEO)

60

TU MODE (AUDIO)

60

4. A/V CIRCUIT DIAGRAM

61

5. Hi-Fi CIRCUIT DIAGRAM

62

6. SYSTEM CIRCUIT DIAGRAM

63

• WAVEFORM

64

• CIRCUIT VOLTAGE CHART

65

PRINTED CIRCUIT DIAGRAMS

66

2. KEY(RIGHT) P.C.BOARD

67

3. KEY(LEFT) P.C.BOARD

67

TRACKING LOOP

70

FOCUS LOOP

70

SLED LOOP

70

SPINDLE LOOP

70

WAVEFORM

70

Y/Pb/Pr(Componet)

71

Y/C(S-VHS)

71

Optical/Coaxial out

71

4. AUDIO DM CIRCUIT DIAGRAM

72

5. MEMORY CIRCUIT DIAGRAM

73

6. JACK CIRCUIT DIAGRAM

74

• WAVEFORMS

75

3-84 3-85

77

3-88 3-89

79

BLOCK DIAGRAM

82

3-99 3-100

84

3. µ-COM CIRCUIT DIAGRAMS

85

2. MAIN P.C.BOARD

87

CONTENTS

89

• Top View

90

• Bottom View

90

DECK MECHANISM DISASSEMBLY

100

DECK MECHANISM ADJUSTMENT

102

3. Checking Torque

103

2. Required Maintenance

109

3. Scheduled Maintenance

109

Maintence

109

NOTE:Greasing Points

110

5-2) Greasing

110

Lever, F/R

111

Base, Tension

111

Boss CAM

111

Auto REW doesn't work

112

No F/R modes

112

AUTO STOP

113

(PLAY/CUE/REV)

113

No cassette loading

113

In PB mode Tape Presence

114

Cassette cannot be inserted

115

Cassette will not eject

115

Cassette will not load

116

EXPLODED VIEWS

117

MECHANICAL SECTION

121

NSP:NOT SERVICE PART

121

ELECTRICAL SECTION

125

MODEL : DTE-550TE(SPEAKER)

154

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