Panasonic UF-E1 / UF-E1CN (serv.man2) Service Manual / Other ▷ View online
UF-E1
1
1 General Operation
1.1.
Facsimile Basic Operation
1.1.1.
Transmission Operation (Single Page)
No.
Operation
Refer to Page 3
Operation
Signal Route
1
Document Sensor detects document.
1
(17)
2
Telephone number of receiver side is sent to PSTN Line.
Dial pulse is produced by NCU PCB.
DTMF tone is produced by Modem.
Dial pulse is produced by NCU PCB.
DTMF tone is produced by Modem.
25
17
17
(8)
(6), (7), (8)
(6), (7), (8)
3
Modem receives and sends several signals for pre-message proce-
dure.
dure.
15, 18
29
29
(6), (7), (8)
(8), (7), (9), (10)
(8), (7), (9), (10)
4
The document is fed to scanning Point Sensor by Tx Motor.
2, 3
(17)
5
CIS is driven by SC PCB and changes from photo signal to electronic
signal.
signal.
4
(17)
6
CIS provides Scanning Data to SC PCB.
(1)
7
Off-set circuit adjusts black level of scanning Data to 0V.
5
8
ABC (Automatic Background Control Circuit) stabilizes white level of
Scanning Data to about 3V.
Scanning Data to about 3V.
6
9
A/D converter converts from Analog Scanning Data to 6 bit Digital sig-
nal (64 level half tone).
nal (64 level half tone).
7
10
Binary Coding Circuit fixes Scanning Data (64 level of half tone) to
white or black (Image Data).
white or black (Image Data).
8
11
Serial/Parallel Circuit converts serial Image Data to 8 bit Parallel Data
for transferring to bus line.
for transferring to bus line.
9
12
One line of Image Data is transferred to Line Memory.
10
(2)
13
The picture data is decoded to MH.
11
(3)
14
Coded Data is transferred to Buffer Memory.
12
(4)
15
Whenever Modem requests next Coded Data, 8 bits coded data is
transferred to Modem.
transferred to Modem.
(5)
16
Coded Parallel Data is converted to Serial Data by Modem.
14
17
Modem converts digital data to analog data in order to sent data to
PSTN (Analog) line.
PSTN (Analog) line.
15
18
Output level against PSTN Line is adjusted by Modem and OP Amp. 16, 19
19
Analog Data is sent to PSTN through several Amp and NCU PCB.
20, 21
(6), (7), (8)
20
Scanning Point Sensor turned off and Scanning is finished.
3
(17)
21
Modem sends and receives some signal for Post-message procedure. 18
29
(6), (7), (8)
(8), (7), (9), (10)
(8), (7), (9), (10)
22
The document is ejected.
2
(17)
UF-E1
2
1.1.2.
Auto Reception (Single Page)
1.1.3.
Copy Operation
No.
Operation
Refer to Page 3
Operation
Signal Route
1
Photo-coupler on NCU detects Ringing signal.
23
(8)
2
Frequency and pattern of Ring are checked.
3
PSTN line is connected from telephone side to Fax side by CML
Relay.
Relay.
22
4
Modem sends and receives several signal for pre-message proce-
dure.
dure.
18
29
29
(6), (7), (8)
(8), (7), (9), (10)
(8), (7), (9), (10)
5
Modem receives Picture Data and demodulate (change from Analog
Data to Digital Coded Data) through NCU PCB and several Amp.
Data to Digital Coded Data) through NCU PCB and several Amp.
27
28, 29
28, 29
(8), (7), (9), (10)
6
Modem converts Coded Data from Serial Data to Parallel Data.
29
7
The Coded Data is transferred to Buffer Memory.
30
(11)
8
The Code Data is decoded to picture data.
32
(13)
9
The decoded picture data is sent to line memory one line at a time,
and is also sent to the heads.
and is also sent to the heads.
33, 34
(13), (14)
10
The RX motor and Ink heads are controlled and a recording is made. 35, 36
(15)
11
Items 8 through 10 are repeated until the reception of one page has
been completed.
been completed.
32 - 36
(13), (14), (15)
12
Modem received and send several signals for past-message proce-
dure.
dure.
18
29
29
(6), (7), (8)
(9), (10)
(9), (10)
13
When one page has been recorded, the Cutter Motor is controlled and
the recording paper is cut.
the recording paper is cut.
37
(15)
No.
Operation
Refer to Page 3
Operation
Signal Route
1
Document Sensor detects a document.
1
(17)
2
The document is fed to Scanning Point Sensor by TX Motor.
2, 3
(17)
3
CIS is driven by SC PCB and changes from photo signal to electronic
signal.
signal.
4
(17)
4
CIS provides Scanning Data to SC PCB.
(1)
5
Off-set circuit adjusts black level of Scanning Data to 0V.
5
6
ABC (Auto Background Control Circuit) stabilizes white level of scan-
ning Data to about 3V.
ning Data to about 3V.
6
7
A/D converts from Analog Scanning Data to 6 bits Digital signal (64
level half tone).
level half tone).
7
8
Binary Coding Circuit fixes Scanning Data (Half tone data of 64 levels)
to white or black (Image data).
to white or black (Image data).
8
9
Serial/Parallel Circuit converts serial Image Data to 8 bits Parallel
Data for transferring to bus line.
Data for transferring to bus line.
9
10
One line of Image Data is transferred to Line Memory.
10
(2)
11
Data is sent from the line memory to the thermal heads.
34
(14), (18)
12
The RX motor and Ink heads are controlled and a recording is made. 35, 36
(15)
13
Item 10 through 12 are repeated until one page has been and the
recording is completed.
recording is completed.
10, 34, 35,
36
36
(2), (14), (15),
(18)
(18)
14
When one page has been recorded, the recording paper is ejected.
37
(15)
UF-E1
3
1.1.4.
General Flow
SCANNING
CONTR
OL
ANALOG/DIGIT
AL
CONVER
T
B
UFFER
MEMOR
Y
SYSTEM
CONTR
OL
SIGNAL
ADJUSTMENT
LINE
CONTR
OL
LINE MEMOR
Y
ENCODING
MODULA
TION
RECORDING
CONTR
OL
B
UFFER
DOCUMENT
MEMOR
Y
SIGNAL
ADJUSTMENT
LINE MEMOR
Y
DECODING
BA
CK UP
P
A
NEL I/F
DEMODULA
TION
1.Document
Sensor Detection
2.Tx Motor F
eed
3.Scanning P
oint
Sensor Detection
4.CIS Dr
iv
e
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(16)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(17)
(18)
5.Offset Le
vel Adjustment
6.A
uto Bac
kg
round Control
(ABC)
7.Analog/Digital Con
ve
rt
8.Binar
y Coding
9.Ser
ial/P
allarel Con
ve
rt
12.Buff
er Memor
y
13.Document Memor
y
30.Buff
er Memor
y
31.Document Memor
y
32.G3 Mode Decode
33.T
ransf
er the data
to Line Memor
y
35.Ink Head Control
36.Motor Control
37.T
emp Control
34.T
ransf
er the data
to Ink Head b
y
Line
14.P
allarel/Ser
ial
15.G3 Mode Modulation
33.6K - 2.4K
16.A
TT 0 - 15dB
17.DTMF T
O
NE
18.Output 300bps
19.Output Le
ve
l
Fine Adjustment
20.Lo
w P
ass Filter
21.T
ransmission Amp
NCU PCB
PENC PCB
SC PCB
P
ANEL PCB
TELEPHONE
LINE
LCD
KEY SCAN
LED
+24V
PO
WER SUPPL
Y
22.F
AX/TEL Connection
23.Ringing Detection
24.Hook Off Detection
25.Dial Pulse
26.Rx Amp
27.Rx Attenator
28.G3 Mode Modulation
33.6K - 2.4K
29.Detect 300bps
10.Image Data
Memor
y
of
each line
11.G3 Mode Encode
(MH)
Recording P
a
per Sensor
(Actuator A) :
Ger
man Only
Exit Sensor
(Actuator C)
Pressure Plate
P
ositioning Sensor
T
ransmission Motor
Scanning P
oint Sensor
(Actuator B)
ADF Sensor
(Actuator A)
Separ
ator Rub
b
er
ADF Roller
F
eed Roller
Contact Image Sensor
UF-E1
4
1.2.
General Block Diagram
GND
ARG
GND
GND
GND
Flash
ROM(Program)
16Mbit
IC7
Flash
ROM
8Mbit
IC6
SRAM 1Mbit
IC4
DRAM 16Mbit
IC13
MODEM
CPU
FA
X
ENGINE
MN195005AAA
Address
Decord
Codec Counter AFE
I/F
DPRAM
I/F
JT
AG
I/F
Parallel
I/F
Serial
I/F
Programable
I/O
IC15
IC3
Chip
Select
Motor
Control
Oscillator PWM Centronics
I/F
Printer
I/F
R
TC
I/F
Serial
I/F
Programable
I/O
SYSTEM
ASIC
DZAC000263
FRIP4-1
MN860741
IC16
Control
Bus
Address
Bus
Data
Bus
HOUST
ON
ASIC
2AE7-0001
FLX68000
Core
Memory
Control
DMA Rotators/RET Centronics
I/F
Fax
I/F
Pen
Driver
Serial
Pen
Motor
I/F
USB Programable
I/O
IC18
Flash
ROM
8Mbit
IC20
IC21
DRAM 4Mbit
Printer
I/F
Control
Data
Bus
Address
Bus
Control
Bus
IC2
AFE
SL
TC7550
D/A(M)
A/D(M)
IC14
A/D(V)
AFE
D/A(V)
SL
TC7550
DC Hold
DP Gen.
Ri Det.
Loop Det.
CML
CML
LINE
IC1
1
LA8522
Cross
Point
SW
SPEAKER
QUAR
TERHORSE
IC
1821-1891
Motor
Driver
Power
Regulator
IC1
RX
Moter
Service
Station
Motor
Carriage
DC
Motor
Service
Station
Switch
Control
SIXSHOOTER
ASIC
Decoder
1821-5459
IC3
Printer
Head
(Cartridge)
ER
TE
ASIC
Temp
measurement
Pen
ID
Resistor
Test
1821-5460
IC2
Temp Sensor
IC1
PANEL
ASIC
DZAC000218
5
Backlight
LED
7
5
16
LCD
Unit
KEY
Switch
KEY
Switch
32
Door
ADF-A
ADF-B
AC
Power
Supply
Unit
+24V
+5V
+3V
+GND
Contact
Image
Sensor
15.975MHz
24.576MHz
TX
Motor
Motor
Driver
IC1
Hand
Set
MIC
Receiver
MIC
Hook
SW
Buzzer
Clock
ASF-B
ASF-A
OI
Sensor
PANEL
PCB
DZEP000564
SC
PCB
DZEP000561
DZEP000562
PENC
PCB
DZEP000565
NCU
PCB
DZEP000581
OIS
PCB
IEEE1284
Driver
IC1
DZEP000563
PR
T
PCB
Parallel
Port
IEEE1284
I/F
32.768KHz
RT
C
IC10(IC5)
ASF-P
for
Germany
Click on the first or last page to see other UF-E1 / UF-E1CN (serv.man2) service manuals if exist.