Read Panasonic UF-490 (serv.man2) Service Manual online
Order Number: MGCS010601C0
H13
Facsimile
UF-490
2
Table of Contents
3
Specifications Table................................... 4
1.1.
Fax Function .............................................4
1.2.
Printer Function ......................................12
1.3.
External View..........................................13
1.4.
Control Panel ..........................................15
Disassembly Instructions ......................... 16
2.1.
General Disassembly Flowchart .............16
2.2.
Disassembly Instructions ........................18
2.3.
Screw Identification Template.................39
Check Points............................................ 41
3.1.
Required Tools .......................................41
3.2.
Periodic Check Points
................................................................41
3.3.
Periodic Maintenance Check List ...........42
3.4.
Updating the Firmware ...........................43
3.5.
Glossary of Electrical Abbreviations .......44
3.6.
SC PC Board ..........................................47
3.7.
Power Supply Unit ..................................58
3.8.
PNL PC Board ........................................59
3.9.
SNSE PC Board .....................................62
3.10. ILS PC Board..........................................63
3.11. SNST PC Board......................................64
3.12. ACI PC Board .........................................65
3.13. SRU PC Board (Optional).......................66
Troubleshooting ....................................... 67
4.1.
Initial Troubleshooting Flowchart ............67
4.2.
Improper LCD Display ............................68
4.3.
Information Codes (INFO. CODES)........69
4.4.
Printed Copy Quality Problems...............81
4.5.
Document Feeder (ADF) ........................97
4.6.
Communications ...................................100
4.7.
Information Codes Table
(For Facsimile)......................................106
(For Facsimile)......................................106
4.8.
Diagnostic Codes (For Facsimile).........111
Service Modes ....................................... 118
5.1.
Service Modes (For Facsimile) .............118
System Description................................ 165
6.1.
Mechanical Operation ..........................165
6.2.
Electrical Circuit Explanation ................175
Exploded View & Parts List ................... 201
7.1.
Country / Region Codes ....................... 201
7.2.
Control Panel Unit ................................ 202
7.3.
ADF Unit............................................... 205
7.4.
Fuser Unit............................................. 207
7.5.
ASF Unit ............................................... 209
7.6.
Drive Unit ............................................. 212
7.7.
Base Unit.............................................. 214
7.8.
PC Board / Harness ............................. 216
7.9.
Cartridge Unit ....................................... 218
7.10. Packing and Accessories ..................... 220
Installation ............................................. 223
8.1.
Function Key ........................................ 223
8.2.
Main Unit and Accessories................... 224
8.3.
Installing the Accessories..................... 225
8.4.
Installing the Toner Cartridge ............... 226
8.5.
Loading the Recording Paper .............. 229
8.6.
Connecting the Telephone Line Cable
and Power Cord ................................... 230
and Power Cord ................................... 230
8.7.
Customizing Your Machine .................. 231
Schematic Diagram ............................... 236
9.1.
General Circuit Diagram....................... 236
9.2.
SC PC Board........................................ 237
9.3.
PNL PC Board...................................... 247
9.4.
ILS PC Board ....................................... 250
9.5.
SNST PC Board ................................... 251
9.6.
SNSE PC Board ................................... 252
9.7.
ACI PC Board....................................... 253
9.8.
Power Supply Unit
(For USA / Canada) ............................. 254
(For USA / Canada) ............................. 254
9.9.
Power Supply Unit
(For Other Countries) ........................... 256
(For Other Countries) ........................... 256
4
1 Specifications Table
1.1.
Fax Function
Items
Description
Remarks
UF-490
Main Specifications
1 Compatibility
G3
ITU-T Std. & Non-Std. (MGCS)
2 PSTN Line Port
Yes
3 Leased Line Port
No
4 V.24 Line Port
No
5 Modem Speed
33.6 - 2.4 kbps
With Automatic Fallback
6 Coding Scheme
MMR/MR/MH
7 ECM
Yes
Conforms to ITU-T
8 Short Protocol
Yes (B, D)
9 Transmission Speed
Approx. 3 sec
ITU-T Image No. 1
(A4, Std. Resolution)
(A4, Std. Resolution)
10
Communication Resolution
(pels / mm x lines / mm)
(pels / mm x lines / mm)
Transmission
Std.
Std.
8 x 3.85
Fine
8 x 7.7
S-Fine 8 x 15.4
Reception
Std.
Std.
8 x 3.85
Fine
8 x 7.7
S-Fine 8 x 15.4
Scanner Mechanism
1 Scanning Device
CIS
2 Scanning Speed
Std.
5.0 sec
Letter sized document
5.3 sec
A4 sized document
Fine
10.0 sec
Letter sized document
10.6 sec
A4 sized document
S-Fine
20.0 sec
Letter sized document
21.2 sec
A4 sized document
3
Scanning Resolution
(pel / mm x lines / mm)
(pel / mm x lines / mm)
Std.
8 x 3.85
Fine
8 x 7.7
S-Fine
8 x 15.4
4 Document Size (Max.)
10.1 x 78.7 in (257 x 2000 mm)
5 Document Size (Min.)
5.8 x 5.0 in (148 x 128 mm)
6 Effective Scanning Width
8.3 in (212 mm)
Letter size for USA and
Canada
Canada
8.2 in (208 mm)
A4 size for Other Countries
7 Reduction XMT
No
8 ADF Capacity
20 sheets
Face Down
A4 / Letter (16 lb / 60 g/m
2
)
9 Collation Stack
Yes (Face Down)
