Panasonic UF-885 / UF-895 Service Manual / Other ▷ View online
ORDER NO. MGCS990402G0
Facsimile
UF-885/895
Please file and use this manual together with the service manual for Model No. UF-885/895, Order No.
MGCS981201C1 or MGCS990301C0.
MGCS981201C1 or MGCS990301C0.
Table of Contents
3
General Operation ..................................... 4
1.1
Electrical Circuit Explanation ....................4
1.2
Signal Routing ..........................................7
1.3
Power On Initial Flow Chart ....................13
Circuit Explanation................................... 19
2.1
Fax System Control Circuit .....................19
2.2
Image Data Circuit ..................................21
2.3
Scanning Circuit......................................22
2.4
Print Quality Control Circuit ....................23
2.5
LBP Interface Circuit...............................24
2.6
Modem and Peripheral Circuit ................26
2.7
LBP Block ...............................................27
2.8
Line Control Circuit .................................33
2.9
Panel.......................................................34
2.10 Sleep Mode.............................................35
Main LSI Feature and Pin Assignment .... 36
3.1
Main LSI Feature and Pin Assignment ...36
Electrical Circuit Diagram ........................ 53
4.1
FCB PC Bord (UF-885/895)....................53
4.2
PNL PC Board ........................................82
4.3
SNS PC Board........................................86
4.4
CCD PC Board (UF-895) ........................87
4.5
CCD PC Board (UF-885) ........................88
4.6
LCU PC Board ........................................89
4.7
LCE PC Board (DZYNA1436).................90
4.8
LCE PC Board (DZEP000441) ...............91
4.9
SSN PC Board........................................92
4.10 ILS PC Board..........................................93
4.11 ACI PC Board .........................................94
4.12 LPC PC Board ........................................95
4.13 G3B PC Board ........................................99
4.14 FRM PC Board .....................................109
4.15 SRU PC Board......................................110
4.16 PRT I/F PC Board.................................111
4.17 CST2 PC Board ....................................114
4.18 CST3 PC Board ....................................115
4.19 EP PC Board ........................................116
Electrical Circuit Diagram & Parts List ... 125
5.1
Country Codes......................................125
5.2
FCB PC Board (UF-895).......................126
5.3
FCB PC Board (UF-885).......................141
5.4
PNL PC Board ......................................156
5.5
SNS PC Board ..................................... 160
5.6
CCD PC Board (UF-895) ..................... 160
5.7
CCD PC Board (UF-885) ..................... 161
5.8
LCU PC Board ..................................... 161
5.9
LCE PC Board (DZYNA1436) .............. 163
5.10 LCE PC Board (DZEP000441)............. 167
5.11 SSN PC Board ..................................... 169
5.12 ILS PC Board ....................................... 169
5.13 ACI PC Board....................................... 169
5.14 LPC PC Board...................................... 170
5.15 G3B PC Board (UF-895) ...................... 172
5.16 FRM PC Board (UF-895) ..................... 178
5.17 SRU PC Board ..................................... 178
5.18 PRT PC Board ..................................... 180
5.19 CST2 PC Board ................................... 182
5.20 CST3 PC Board ................................... 182
5.21 EP PC Board ........................................ 183
Entension Cable .................................... 189
6.1
Extension Cable List for UF-885/895 ... 189
4
1
G
e
n
e
ral Oper
ation
1.
1
E
le
ctrica
l Circuit Expl
anati
o
n
5MHz
20MHz(C)
CLK
CCD
TCD1208P-1
(UF-885)
uPD3734ACY
(UF-895)
FRIP5
(MN86075)
8KB
for
IPC
ROM
128KB
PEC
Page Memory
DRAM
2M
2
(UF-895)
2M
1
(UF-885)
SRAM
32kB
2
SGCP
(MN86064)
CPU
(SH7041)
CPU
(uPD78054)
Program
FROM
2MB
DRAM
2/4/8MB
Work Memory
DRAM
2MB
FROM
1/2/4/8MB
DZZSP58025
API
MN195004
TR88017
Masked
ROM
512KB
SRAM
32KB
32KB
PDL
Chip Set
MOT
DRV
DRV
CCD PCB
Tx MOTOR
LED
FCB PCB
Analog
LCU PCB
(519)
or
LCE
Flash
Memory
Card
Memory Card
LINE
7.16MHz(X)
24.576MHz(X)
Enhanced
Printing PC Borad
50MHz(X)
32MHz(X)
uPD78054
Laser Unit
HVPS
7.68MHz(X)
2nd Cassette
CST2 PCB
No Paper Sensor
Jam Cover Sensor
Paper Feed Solenoid
SSN PCB (Paper Size)
CST2 PCB
No Paper Sensor
Jam Cover Sensor
Paper Feed Solenoid
SSN PCB (Paper Size)
Registration Sensor
No Paper Sensor
Exit Sensor
Toner Sensor
Paper Size Sensor
3rd Cassette
Option
Option
MOT
DRV
DRV
Paper Feed Solenoid
FAN
Printer Motor
18.117MHz(X)
(Option PCB)
Thermistor
Fuser LAMP
Fuser LAMP
Thermostat
HTC
+24V
+5V
nLPO
W
POW SW
ACI PCB
AC
handset
LCD Unit
40MHz
(C)
25MHz
PNL PCB
SGCP
(MN86064)
CLK
TEL
Regulator
+5V
+3V
G3 Option PCB
( for UF-895)
Printer/Scanner I/F Option PCB
Key
Matrix
and
LED
LED
Power
Controller
+24V
+24V
Image
FROM
1MB
2MB
2MB
(UF-895)
(UF-885)
ADF Sensor
SNS PCB
STAMP
For Scanner
For 16 pels/mm
Printing
Printing
For System
SRU
LCU or LCE
-12V
Low voltage
Power Supply Unit
+24V
+5V
DC-DC
+24V
+12V
+5VP
Option
32.207MHz(X)
For 400dpi
Printer
For 600dpi
Printing
Printing
SRAM
32KB
(40nS)
for UF-885
3/5V Converter
MSC
240 pins
Reset
3V
CPU
DOC.Width Sensor
RPS Sensor
ADF Door Sensor
(522)
(342)
(346)
(335)
(121)
(429)
(506)
(928)
(728)
(731)
(731)
(744)
(748)
CST3 PCB
(608)
(622)
(650)
(432)
(405)
(408)
(502)
(507)
(214)
(215)
SRAM
3
(70nS)
UF-895
LBP one chip CPU
Modem ROM
Codec for
Communication
Communication
Analog MODEM
MODEM CPU
Main CPU
PNL control
DRAM control
Sub CPU control
DRAM control
Sub CPU control
Main System Controller
Bus control (3.3V - 5V)
Address decode control
DMA Control
Address decode control
DMA Control
Picture Editing Controller
DRAM control (Page Memory)
SRAM control (Line Memory)
PDL data control
DMA Control
SRAM control (Line Memory)
PDL data control
DMA Control
Facsimile Real Image Processor-5
A/D Converter
Shading
64 Levels Error Diffusion
Binary Coding
CCD Drive
Shading
64 Levels Error Diffusion
Binary Coding
CCD Drive
Application Peripheral
Interface I/O Port
Interface I/O Port
Image Processing Controller
CCD control
Print Quality control
LBP Interface
Print Quality control
LBP Interface
IC80
IC50
IC60
IC90
IC91
IC101
TC201
Q200
IC100
IC81
IC82
IC140
IC150
IC160
IC170,171
IC120,121
IC131,132
IC130
IC42
IC43
IC10
IC30
IC20
IC21
IC110
IC190
IC180
Codec for
Image
Image
Sub CPU
Scanning control
Scanning control
