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UX-178
Sharp UX-178 Service Manual
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UX-108U/178U/188U
FO-375U
[2] Wiring diagram
4 – 2
FG
CAM SW
CUTTER
SENSOR
2
2
6
THERMAL HEAD
CONTACT IMAGE SENSOR
LCD UNIT
CNLCD
OPERATION
PANEL PWB
14
CNPN
16
7
15
CNCSW
CNMT
CNTH
CNCIS
CNPN
CNSP
SPEAKER
CNCUT1
CNLIUA
CNPW
12
10
CONTROL PWB UNIT
TEL/LIU
PWB UNIT
POWER SUPPLY
PWB UNIT
CNLIU
CN2
EXTERNAL LINE
TEL LINE
MJ1/2
MJTEL
AC CORD
UX-178U/188U/FO-375U ONLY
TX/RX MOTOR
2
HANDSET
FG
41
43
Table of Contents
Default Chapter
2
Caution for Battery Replacement
2
Chapter 1. General Description
3
Specifications
3
Operation Panel
4
Transmittable Documents
5
Telephone Jack
6
Installation
6
Original Document Support
7
Loading the Fax Paper
7
Clearing a Jammed Document
8
Quick Reference Guide
9
Chapter 2. Adjustments
10
Control Pwb
10
Memory Clear
11
Diagnostics and Service Soft Switch
11
Troubleshooting
26
Error Code Table
27
Chapter 3. Mechanism Blocks
28
General Description
28
Cross Section View
29
Disassembly and Assembly Procedures
30
Document Guide Upper
34
Operation Panel
35
Chapter 4. Diagrams
41
Chapter 5. Circuit Description
44
Circuit Description of Control PWB
45
Main Control Block
45
Circuit Description of TEL/LIU PWB
51
Block Description
51
Circuit Description of Power Supply PWB
54
Circuit Description of CIS Unit
54
Chapter 6. Circuit Schematics and Parts Layout
55
Control PWB Parts Layout (Top Side)
61
Control PWB Parts Layout (Bottom Side)
62
Chapter 7. Operation Flowchart
68
Power-On Sequence
69
Chapter 8. Others
70
Service Tools
70
Relay Board Unit
70
IC Signal Name
73
Control Pwb Unit
73
Parts Guide
77
Upper Cabinet
81
All Rights Reserved
92
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Sharp UX-178 Specifications
General
Brand
Sharp
Model
UX-178
Category
Fax Machine
Language
English
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