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FO-475TH, UX-258TH manual
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Contents
Main
No. 00ZUX258THSME
SHARP CORPORATION
CONTENTS
SERVICE MANUAL FACSIMILE UX-258
MODEL FO-475
CAUTION FOR BATTERY REPLACEMENT
1 1
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications
[2] Operation panel
11 12108 9 13 4 5
7
26
13 14 15 16 17 18 19 20
1 3
[3] Transmittable documents
Readable length
(Min.)
1. Document Sizes
Readable width
[4] Installation
1. Site selection
ENVIRONMENT
3. Original document support
4. Loading the fax paper
Remove cardboard and tape
1 6
4. Clearing a jammed document
5. Clearing jammed fax paper
1 7
[5] Quick reference guide
Note: Steps which are optional are enclosed in a dotted frame:
FUNCTION key menu
Transmitting documents
Using the answering machine
CHAPTER 2. ADJUSTMENTS
[1] Adjustments
2 1
General
1. Adjustments Adjustments of output voltage (FACTORY ONLY)
[2] Diagnostics and service soft switch
1. Operating procedure (1) Entering the diagnostic mode
2. Diagnostic items
2 2
3. Diagnostic items description 3. 1. Soft switch mode
3. 2. ROM & RAM check
3. 3. Aging mode
3. 4. Panel key test
3. 5. Check pattern mode
S F T SW-A2 = 0 0 0 0 0 0 0 0 S F T SW-L2 = 0 0 0 0 0 0 0 0
S F T SW-A1 = 0 0 0 0 0 0 0 0
DATA No. 1 2 3 4 5 6 7 8
5. Soft switch description Soft switch
2 5
2 6
2 7
2 8
2 9
2 10
2 11
Soft switch function description
2 12
TX RX
CED DIS
T
2 13
2 14
2 15
Reception OGM output ICM recording 2 sec~ 5 sec ( SW-I1No. 3, No. 4)
Reception OGM output ICM recording 0 sec~3 sec (SW-I1 No. 5, No. 6)
2 16
[3] Troubleshooting
's service
C2 D1
A1 A2 C1 D2
Our service
[4] Error code table
1. Communication error code table G3 Transmission
2 18
G3 Reception
CHAPTER 3. MECHANISM BLOCKS
[1] General description
Paper feed spring
Document
Paper feed roller
3-5. Documents requiring use of document carrier
4. Document release 4-1. General
4-2. Cross section view
5. Recording block 5-1. General view
3 2
[2] Disassembly and assembly procedures
Handset cover and paper support guide
1
Page
Page
Document guide upper unit and head frame
4
Page
Page
Page
Page
Drive frame
9
,,
,
Wire treatment
10
3 12
[1] Block diagram
4 1
CHAPTER 4. DIAGRAMS
[2] Wiring diagram
CONTROL PWB UNIT
4 2
TEL/LIU PWB UNIT POWER SUPPLY
PWB UNIT
[3] Point- to-point diagram
4 3
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Circuit description
5 1
1. General description
2. PWB configuration
[2] Circuit description of control PWB
1. General description
Fig. 2 shows the functional blocks of the control PWB, which is com- posed of 4 blocks.
Fig. 2 Control PWB functional block diagram
2. Description of each block (1) Main control block
FC200 (IC2) Terminal descriptions
5 3
FC200 (IC2) Terminal descriptions
5 4
FO-475TH
(2) Panel control block
The following controls are performed by the FC200.
(3) Mechanism/recording control block
Fig. 4
5 5
(4) Modem (R96V24) block
INTRODUCTION
5 6
FEATURES
R96V24 (IC1) Hardware Interface Signals
5 7
[3] Circuit description of TEL/LIU PWB
(1) TEL/LIU block operational description
1) Block diagram
2) Circuit description
3) Block description
5 10
[4] Circuit description of power supply PWB
[5] Circuit description of CIS unit
6 1
CHAPTER 6. CIRCUIT SCHEMATICS AND P ARTS LAYOUT
HCA
BDEFG
2
1
Memory block 2/6
IC8 27C020
IC7 W24257S-70LL
IC9 KM29N040T (44PIN TSOP)
6 3
IC1 R96V24
6 4
Other block 4/6
IC100 PST596CNR
6 5
UX-258TH
Video processing/Motor drive / Thermal block 5/6
IC13 ULN2003A
6 6
Analog signal block 6/6
IC5 4051
IC4 MC34119
Page
Page
6 9
These marks are all safety-critical parts.
NOTE:
[2] TEL/LIU PWB circuit
Page
6 11
NJM78M05FA
[3] Power supply PWB circuit
Page
[4] Operation panel PWB circuit
BDEFG
6 13
Note: Since the parts of this PWB can not be supplied, change it as a unit.
5
CHAPTER 7. OPERATION FLOWCHART
[1] Protocol
7 2
[2] Power on sequence
CHAPTER 8. OTHERS
8 2
2. Description 2-1. Relay board unit
NOTE
Relay cable
CNLIUA
CHECK CONTROL
TEL/LIU
12 1 CNPW
CNLIU
Page
[2] IC signal name
CONTROL PWB UNIT
16 15 14 13 12 11 10 9
12345678 1B 2B 3B 4B 5B 6B 7B E
1C 2C 3C 4C 5C 6C 7C COM
1 2 3 4
CD FC2 FC1 VIN
(TOP VIEW)
GND
VCC
8 6
IC1: VHiR96FC20V24 (R96V24)
FO-475TH
8 7
TEL/LIU PWB UNIT IC1: VHiNJM2904D-1 (NJM2904D)
-
IC2: VHiR96FC20V24 (FC200)
1 2 3 4