Sharp FO-475TH manuals

Sharp FO-475TH User Manual (75 pages)

Brand: Sharp | Category: Fax machines | Size: 2.63 MB |

English

Table of contents

SERVICE MANUAL

1

FACSIMILE

1

[1] Specifications

3

[2] Operation panel

4

[3] Transmittable documents

5

[4] Installation

6

Press here to close

7

4. Clearing a jammed document

8

5. Clearing jammed fax paper

8

FUNCTION key menu

9

PLAY/SKIP

9

START/MEMORY

9

CHAPTER 2. ADJUSTMENTS

10

RANK 0 or 1

12

5. Soft switch description

14

• Soft switch

14

DIAL DATA

22

RAPID01 CML RELAY ON

22

0 : 3 sec

22

1 : 3.6 sec

22

2000msec

23

Reception

24

OGM output ICM recording

24

[3] Troubleshooting

26

[4] Error code table

27

CHAPTER 3. MECHANISM BLOCKS

28

1) Thermal head

29

PWB case top, bottom and PWB

31

UX-258TH

32

FO-475TH

32

Parts list (Fig. 3)

32

Parts list (Fig. 4)

33

Document guide upper

34

Operation panel

35

Drive unit, PWB and cutter7

36

Drive frame

38

Wire treatment

39

CHAPTER 4. DIAGRAMS

40

[2] Wiring diagram

41

[3] Point- to-point diagram

42

[1] Circuit description

43

1. General description

44

2. Description of each block

44

(1) Main control block

44

(2) Panel control block

47

• Operation panel LCD display

47

INTRODUCTION

48

FEATURES

48

1) Block diagram

50

2) Circuit description

50

3) Block description

50

[1] Control PWB circuit 1/6

54

Main control block

54

Memory block 2/6

55

Modem block 3/6

56

Other block 4/6

57

Analog signal block 6/6

59

[2] TEL/LIU PWB circuit

62

TEL/LIU PWB parts layout

63

[3] Power supply PWB circuit

64

Power supply PWB parts layout

65

[1] Protocol

67

[2] Power on sequence

68

CHAPTER 8. OTHERS

69

2. Description

70

2-1. Relay board unit

70

3. Shading paper

71

16 15 14 13 12 11 10 9

72

12345678

72

1B 2B 3B 4B 5B 6B 7B E

72

1C 2C 3C 4C 5C 6C 7C COM

72

IC1: VHiR96FC20V24 (R96V24)

74

TEL/LIU PWB UNIT

75

IC1: VHiNJM2904D-1 (NJM2904D)

75

IC2: VHiR96FC20V24 (FC200)

75

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