UX-258TH

FO-475TH

SERVICE MANUAL

No. 00ZUX258THSME

FACSIMILE

UX-258

MODEL FO-475

CONTENTS

CHAPTER 1. GENERAL DESCRIPTION

 

CHAPTER 5. CIRCUIT DESCRIPTION

 

[1]

Specifications

1-1

[1]

Circuit description

5-1

[2]

Operation panel

1-2

[2]

Circuit description of control PWB

5-2

[3]

Transmittable documents

1-3

[3]

Circuit description of TEL/LIU PWB

5-8

[4]

Installation

1-4

[4]

Circuit description of

 

[5]

Quick reference guide

1-7

 

power supply PWB

5-11

CHAPTER 2. ADJUSTMENTS

 

[5]

Circuit description of CIS unit

5-11

 

 

 

 

[1] Adjustments

2-1

CHAPTER 6. CIRCUIT SCHEMATICS AND

 

[2]

Diagnostics and service soft switch

2-2

PARTS LAYOUT

 

[3]

Troubleshooting

2-17

[1]

Control PWB circuit

6-1

[4]

Error code table

2-18

[2]

TEL/LIU PWB circuit

6-9

CHAPTER 3. MECHANISM BLOCKS

 

[3]

Power supply PWB circuit

6-11

 

[4]

Operation panel PWB circuit

6-13

[1]

General description

3-1

 

 

 

[2]

Disassembly and assembly

 

CHAPTER 7. OPERATION FLOWCHART

 

 

procedures

3-3

[1]

Protocol

7-1

CHAPTER 4. DIAGRAMS

 

[2] Power on sequence

7-2

 

 

 

 

[1]

Block diagram

4-1

CHAPTER 8. OTHERS

 

[2]

Wiring diagram

4-2

[1] Service tools

8-1

[3]

Point-to-point diagram

4-3

[2]

IC signal name

8-4

 

 

 

PARTS GUIDE

 

Parts marked with "" is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

This document has been published to be used

SHARP CORPORATION for after sales service only.

The contents are subject to change without notice.

1 - 1

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Sharp FO-475TH, UX-258TH manual Facsimile