Sanyo SFX-32 User manual

SERVICE MANUAL Facsimile Transceiver IFILE NO.
SFX-32
PRODUCT CODE NO.
GERMANY 1 145 656 25
MAIN SPECIFICATIONS
IType II Desk-top type transceiver
-
ILine connected II Public switched telephone network
ISize of recording Paper II 21WTI (8,5) xwrn @’)Lan (82’). I
IEffective scanning width II 208rnrn(8.2”) I
EffecWe recordingwidth 212mm (8.3)
Transmissionspeed 9600/7200/4600/2400 BPS
Transmissiontime Approx. 15 sec. (Transmissionmode: standard)
II
Main scanning density 8pels
Sub scanning density 3.85 lines/mm (Standard mode) 7.7 Iine#mm (Fine mode)
15.4 Iinealmm (Super fine mode)
Cempreasion mode Ml+ (MocMied Huffman) and Sanyo original
II
IReading method II CIS (Contact image sensor) I
IRecording method II Thermal printing I
IPower supply II AC230V,!XY601-IZ I
Ipower consumption II-Stand-by:5VV,Transmission:15w, keption IWV, &tpY 160w I
II
Overall dimensions 361(W) x80(H) x263(D) mm
15”(W) X3.5”(H) X1O.4”(D)
1-
Weight Approx. 4.2kg
Ambient temperature 5°C -35°C (41°F -95”F)
●High-grade thermal papar is 25m (82’).
REFERENCE NO. SM 620017

INDEX Page
1. INSTALLATION
(1) Unpacking. .......................................................................1
(2) Telephonelineand ACconnections. .....................................................1
(3) Settingthedialing modeswitch .........................................................2
(4) installing recording paper .............................................................2
(5) Machine initial .....................................................................3
(6) Machine programming .............................................................3-7
2. PERIODICALINSPECTION AND MAINTENANCE ..............................................8
3.OUTLINE
(l) Partnamesandfunctions .............................................................9
(2) Operation panel ...................................................................10
(3) Original documentsprecautions. ......................................................11
4. MECHANICALOUTLINE ...............................................................12
5.TROUBLESHOOTING
5-1. Function description ofeach PCB ..................................................13-15
5-2. Trouble shooting for Mechanical Parts ..................................................15
5-3. Trouble shooting forcircuitry. .....................................................16–20
5-4. Error code list .................................................................20,21
6.REPAIRS
6-l. Removal ofthemainpatts ........................................................22}23
6-2. Replacementofthe main parts .....................................................23,24
6-3. Test Mode .................................................................. 25-30
6-4. RAM CODE LISTand ltsExplanation ...............................................31-34
7.PRINTINGOFTHE REPORTSANDUSTS
7-1. Activity Report ...................................................................35
7-2. One-touch Dial List ...............................................................35
7-3. Speed Dial List ...................................................................36
7-4. FeatureSwitch List ................................................................36
7-5. RAM CODE List ..................................................................37
7-6. Transmission Report ...............................................................38
7-7. TimerTransmission Report ..........................................................38
8.FLOWCHARTOF AUTO RECEPTION MODE
(l) Autoreceptionwith FAX/TELswitchover function isON ......................................39
(2)Auto reception with FAX/TELswitchover function isOFF ......................................40
(3) Answerreception mode .............................................................41 -
9.BLOCKDIAGRAM ANDTHESIGNALFLOW
9-1. Block Diagram .................................................................. 42
9-2. Signal flow ...................................................................43,44
10. SCHEMATIC DIAGRAM
(l) All Connection Diagram ...........................................................45,46
(2) Each Circuit Diagram ............................................................47-61
(3) PWB Wiring Diagram ............................................................62-64
(4)Abbreviatedsignal explanation ........................................................65
ll. PARTSSPECIFICATION
(l) lCconfiguration ................................................................66-71
(2) Parts specification for power supply .....................................................72
(3) Figure of main parts for power supply ....................................................72
12.TfMECHARTS OF EACH COMMUNICATION MODE ..........................................73
13.SIGNALFLOW CHART ...............................................................74
14.EXPLODEDVIEW ................................................................75-n
15.PARTSUST ....................................................................78-83 ~

1. INSTALLATION
(1) Unpacking
wTo unpack the SFX-32:
1. Open Ihe carton.
2. Remove theaccessories (handset, recording paper roll, etc.) from the carton.
3Remove the faxmachine along with the foam braceson both sides.
4. Remove the polyethylene wrapping around the fax machine.
5. Remove the transportation tapes.
6. Save the carton and the foam braces for later storage and/or shipping.
7. Place the machine where there is access to an AC outlet and amodular phone jack. (Be sure to observe the
precautions below.)
Placement precautlona
●Avoid placing the SFX-32 in humid or dusty places, or in places where it will be exposed to excessive heat
(direct sunlight, heaters, etc.).
●Do not step on or set anything on the AC cord. DAMAGE TO THE AC CORD IS ASAFETY RISK AND CAN
cm3E AFIRE.
●Install the unit only on astable surface.
●Do not connect the SFX-32 to the same AC outlet as appliances that generate large amounts of interference
(heaters with thermostats, appliances with motors, etc.). It is best to use acompletely separate electrical outlet.
QKeep the SFX-32 away from water. If water accidental yenters the unit, unplug the AC power cord immediately.
DO NOT SWITCH THE UNIT ON AGAIN. Contact an authorized Sanyo service center or dealer.
LHandling precaution
●Do not remove any parts that are held in place with screws. (The SFX-32 does not contain any user-serviceable
items).
.Maintain standard room temperature 5°C –35°C (410F –95”F) during use. Do not subject the unit to shock or
vibration. Do not move the unit while it is in use.
.Arapid increase in room temperature in cool weather can cause condensation to form inside the unit. If this
happens, wait at least 15 minutes after turning the unit on before attempting to operate it.
Failure to do so may result in paper jams and/or poor print quality.
●When cleaning the cover or operation panel of the unit, wipe gently using adamp cloth to which asmall amount
of aneutral detergent has been added. NEVER USE SOLVENTS OR CHEMICALLY TREATED CLOTHS.
(2) Telephone line and AC connections
IConnectingto AC 1
[Connectingto telephone line
●The S%-32 shouldnotshare amodularlack withorharcommumcation
eqwpment,sthismayobstructthe properfunctioningofthe umt.
—l—

(3) Setting the dialing mode switch
Set the dialing mode switch (DIAL) to the correct position for
your telephone line.
=“)%!BB
telephone Push-button Rotary-dlalmg
telephone telephone
,
---1
heard when Shorl audibletones
you dial
Your
telephone
line is /
Continuous
clicking
sounds
FPulse-Dialing
\PULSE TONE
)@
Set the switch
to
I
PULSE TONE
mid
fyou are not sure which dialing system your telephone is using,
:ontactyour telephona company.
(4) Installing recording paper
1
‘-- ‘-- -‘- ‘--– “-——1 open the ~rqeC~Ve cover and rear cover
\
[
-... Pressthe LOPENIbutton10 OPen the
recordingpapercover.
\l.{
l------ .--- _–. --. .__J
——-. .—— —.+ ----- . . . . . ----- ----- . .
2--————--..—————-——
“-”=*J-*
-.. .
... ‘.,
---==s:
m~
-=....
--..’
~~ t~
. .. —....._ ———.-——
3
I[---.
_.:’--....__..
.-.
,------------ .—---—,
L_-.. _...____J.. ____J
Place the supplledroll,mthedirection
shownmthedmgram,mthepaperholder
wdhbothsidesseatedsecurely
●Removeanyslackfromtheroll
InsertIhe”endoftherollIntotherecord-
ingpaperexitslot. Correct Wrong
___...cl2vf
Pulloutthe end01therollfromtherecord
ing paper exl[ unt!l It extends 4inches
Close the recording paper cover by
pressing both Ieff and right corners of
thafarendofthecoverfirmly
The SFX-S2 cuts the extra recording
paper automatically
.-
■Uaaonlytharecording papar specified for the SFX-32.
■The rear rxwarmustbe left open whilathe SFX-32 ia in standby mode.
High-grade thermal paper
The SFX-32 is compatible with the high-grade thermal paper, anew type fax
recording paper with plain-paper quality. Unlike regular thermal paper, the
high-grade thermal papar does not fade with time, can be written on With
pencil and can be ereead.
SANYO Type 6326731727,216 mm (8.5”) wide and 25 m(82) long.
A12-meter (39’) long roil is supplied with your SFX-32.
Thermal paper
SANYOTYW 6323250047,216 mm (8.6”) wide and 30 m(S8’) long.
Anti-curl system
The SFX-32 has abuilt-in anti-curl eyetem that prevents thermal recording
paper (high-grade or regular) from curiirig.
~~ing the A4kcording Paper
1. Ramoealhe resordlng pa-r gufde 2. Reptasethe reCOIX%IPW W*
PushUmguida to ~diraction and Mit In Mpodtien
m~as shown In the figurs. Push the guide tOEand men tO ~
direction as shown In the I@Jre
–2—

(5) MACHINE INITIAL
1.Connect AC plug into AC outlet. 126 Ott .’93 12:001
2. Press -] key while ~key is being pressed and
keep this condition at least one second.
3. Press ~.
4. Press ~or -j.
B:Clear all items then return to STAND-BY display.
5.
6.
7.
At the same time S-RAM check is also carried out.
-1: Individual items.
Press ~or [WI.
~:Initialize RAM CODE and goes to the next item.
[m] :Just goes to the next item.
Press ~or ~=~ .
~:Clear one-touch and speed dial memory and goes
to the next item.
m] :Just goes to the next item.
Press ~or -.
~:~r Activity report data and return to STAN13-BY
L1
display.
-] :Just return to STAND-BY display.
REMARKS
In case of S-RAM Error at step 4, alarm sounds continuously
and the machine goes into “DEAD LOCK’ condition +
Repairing is required.
(6) MACHINE PROGRAMMING
<SElllNG YOUR STATION NAME AND FAX NUMBER>
1.
2.
‘L 3.
4.
5.
6.
7.
8.
9.
L
Press [-] 6times.
Press ~.
Press -] twice.
Press ~.
Enter your station name.
Amaximum of 24 characters can be entered.
(See page 4)
Press ~.
Enter your fax number.
Your fax number can be entered up to 20 digits in length.
Example 0123456
Press ~.
Enter the PBX mode then press ~.
Print an activity report (see page 35) to make sure that your
station name and fax number have been programmed
correctly.
—3—
II
IINITIAL SET ?I
ALL CLEAR ?J
126 Oct.’ 93 12:001
RAM CODE CLEAR ?
O.T &S.D CLEAR?
REPORT DATA CLR?
26 Oct. ’93 12:00
IS RAM CHECK ERROR I
SET MODE ?
O.T DIAL SET ?
STATION CODE SET
I I
I
0123451
126 Oct.’ 93 12:001

■To print programming, press [STOP/C] .
■If you make amistake in entering acharacter, press ~STOP/C] and then re-enter the letter or number.
~- -—..—..-.
■To enter ahyphen (-) between two digits, press ISPEED DIAL].
■To enter aplus sign (+) preceding your fax number, press ~HOLD]
■The header can be printed either outside the original document (in the top margin) or inside the document itself. You
can select the desired setting using feature switch No. 20. Default setting is printing outside of the original.
NOTE: If you choose to print the header inside the document, the top of the original document (about 1cm/O.4”) may
not be reproduced.
Printing outside of the original.
I26 Oct. ’931200 SANYO FAX 012345 P.1
,----- ---- ---- —-—- -——- -— -- ---— ---— —--- ———- ---- -—-— ————-T
I
I
I
Printing inside of the original.
,___________________ ------------------- ------------------- ____
--T
I26 Oct. ’9312:00 I
ISANYO FAX 012345 P.1
II
Entering names
Before programming the one-touch and speed-dial memory, you need to know how to enter names using number
keys. Each alphabetical letter and symbol are assigned to a2-digit code as shown on the next page.
IEnterina letters
I—.- ___ ---- ---- -—
a 1
Example: To enter SFX
1. Press ~.~to enter S.
2. Press ~.~to enter E
S9 I
3. Press ~“~to enter X. SFXD I
n
4. Press Os~to enter space.
IEntering numbers
Example: To enter 67
c1 13
1. Press 6to enter 6 and then press #key
to move the cursor to the right.
El
2. Press 7to enter 7.
SFX 61
SFX 679
-.---’
d
A

Table of letter and symbol codes
I
‘u- ●To enter number:
O—6 ““.””””... ..................... ❑
Enter the number and press #to move corsor right.
7—9 ............................... Enter the number. The cursor moves to the right automatically.
II D
●If you make amistake in entering aletter or anumber, simply press #to move right or *to move left to
the appropriate space and then enter the correct letter or number.
.To clear aname or anumber, press mand re-enter.
I
1
Character Code No. Character Code No. Character Code No. Character Code No, Character Code No.
space ........... 00 (.................... 14 K.................- 28 Y................... 42 m...................56
...........01 )................... 15 L ................... 29 z................... 43 n ..................57
...........02 . .................. 16 M..000.””o”.”....... 30 a ................... 44 0...................58
...........03 >................... 17 N....s.............. 31 b ................... 45 p ...................59
...........04 A.................... 18 0 .................. 32 c................... 46 q .................60
...........05 B.................... 19 P““””””””””””””””””” 33 d ................... 47 r...................61
+...........06 c.................... 20 Q“”””””””””””””””””” 34 e ................... 48 S...................62
...........07 D.................... 21 R..oc............... 35 f .................. 49 t ...................63
I...........08 E.................... 22 S“......””””””..’... 36 g ................... 50 U..................64
&...........09 F.................... 23 ‘T .................. 37 h ................... 51 V...................65
*...........10 G.................... 24 U................... 38 i................... 52 w...................66
#...........11 H................... 25 v““””””””””””””””.”. 39 j................... 53 x................... 67
!...........12 I.................... 26 w., ....”’- .....”.... 40 k................... 54 y...................68
...........13 J.................... 27 x...................41 I .................. 55 Z...................69
<ONE-TOUCH DIAL MEMORY PROGRAMMING>
Press ~M~l 6times. SET MODE ?
1.
2.
3.
4.
L
5.
6.
7.
8.
9.
10.
\
Press ~.
Press ~again.
Press one-touch dialing key (1-8).
Example To program anumber in the one-touch key 2,
press one-touch key ❑.
Press ~.
Enter the party’s name (to amaximum of 16 characters).
(See page 4 for detailed instructions)
Press ~.
Enter the fax (or telephone) number.
(A maximum of 16 digits can be entered including pauses
and hyphens.)
Example 0123456
Press ~.
To program other one-touch keys, repeat steps 4-9 above.
Press ml to finish one-touch number programming.
1
O.T DIAL SET ?
O.T No. =1?
10. TNo. =B?l
ABCDEI
012345[
O.T No. =@?
26 Oct. ’93 12:00
—5—

9For instructions on printing out anumerical list of programmed names and numbers, see page 4.
■To interrupt programming, press I-] .
■To enter ahyphen (-), press -~ ..-
■To enter athree-second pause between two digits of anumber, press [REDIAL/ PAUSE] in the appropriate place. A
semicolon (;) indicates apause.
<SPEED-DIAL MEMORY
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Press ml 6times.
Press ~.
Press ml .
Press ~,
Enter aspeed-dial number using the number keys.
Example To store afax number in the speed-dial
number 10, press ❑,then ❑.
Press ~.
Enter the party’s name (to amaximum of 16
characters).
(See page 4 for detailed instructions.)
Press ~.
Enter the fax (telephone) number to be stored.
Amaximum of 16 digits can be entered, including
pauses and hyphens.
Example 0123456
Press ~.
Repeat steps 5-10 to program other numbers.
Press -] to finish speed-dial number
ISET MODE ?I
O.T DIAL SET ?
SPEED DIAL SET ?
S.D No. .Ofl?
S.D No. =l~?
ABC DEN
I
II
II
I012345~1
S.D No. =lfl?
126 Oct. ’93 12:001
programming.
9For instructions on printing out alist of programmed names and numbers, see page 4.
■To interrupt programming, press -1.
■To enter ahyphen (-), press ~.
■To enter three-second pause between two digits of anumber, press ~REDiAL/PAUSE ]in the appropriate place. A
semicolon (;) indicates apause.
~Canceling programmedone-touch dialing numbers “]
—
1.Press m] 6times.
2. Press ~Y] twice.
3. Press the one-touch dialing key of the number you want
to cancel.
Example: One-touch 2
.,,’ O.T No. =E? I
—6—

4.
b5.
6.
7.
Press ISET]
Press ~STOP/C].
—.———
——
Press [SET].
Repeat steps 3–6 to cancel other one-touch key.
Press [STO~ to finish canceling.
————
@EALER AI
IO.T No. =B?l
[Canceling programmedspeed-dialingnumbers
1.Press ml 6times.
2. Press ~.
3. Press [MENU1.
‘- 4. Press [S-j.
Example: Speed-dial number 10
5. Press the number to be canceled.
6. Press ~.
S.D No. =l~? I
l~EALER AI
7. Press] STOP/C\ .
8. Press ~E~].
Repeat steps 5-8 to cancel other speed-dial numbers.
9. Press -1.
<CALENDAR AND CLOCIO
L1.
2.
3.
4.
5.
Press ml 6times.
Press ~.
Press m3times.
Press ~.
Enter the day, month, year and time using the number
keys.
. The time must be entered using 24-hour system.
●The day, month and year should be entered in 2
digits each.
Example: to enter 26, October, 1993, 12:00, press
lIIlllIIJIllllZjlll)@ lllIIJEZIJ@l andl@o
6. Press ~.
IS.D NO. =Ifl?l
lsET MODE ?I
10. TDIAL SET ?I
TIME SET ?I
Iglo 04 ’93 10:OOI
16 10 ’93 12:00
126 Oct. ’93 12:001
SIf you make amistake, move the cursor to the appropriate place, then enter the correct number.
LPress ❑to move the cursor right
Press ❑to move the cursor left —7—

ICleaning the housing (exterior plastic parts)
Gently wipe the housing with asoft, clean cloth dampened with asmall amount of aneutral detergent.
cDo not use acleaning agent such as alcohol or benzene.
ICleaning the document feed roller-2 I
If astreak or dirty pattern appears on acopy or afax you have sent, clean
the document feed roller-2 with asoft, clean cloth dampened with asmall
amount of neutral detergent.
n
1&.pentheoperaticmpanel
‘=00 :.:: .
!Cleanina the document feed roller-l
If the document jamming or overlapping frequently occurs, clean the
docum
feed roller-1 with acotton swab dampened with asmall amount of a
neu
detergent.
1
Open the operaffoh panel then pull
document release lever as shown in
figure.
2
2In order to rotate the document feed
roller-2, press the document sensor as
shown in the figure. 3
3Clean the document feed roller-2, then
dry it thoroughlyto prevant the document
from jamming.
In order to rotate the document
f
roller-1, press the document
sensor
shown in the figure.
Clean the document feed roller-1, t
dry them thoroughly to prevent
document from jamming.
Oparationpanel
—Rubber sheet
roller-l
Document feed roller-2JI
Document sensor -1

L
3. OUTLINE
(1) Part name and functions
Frontview
Open button
Original guide
I
I
I’
-----
1
cording paper cover
-cover
Right side
L
Original slot
_.__ —._—
_____._..——
_— ——
AUTO MANU PULS[TONE
—m
_f... .F‘-“~
II
AUTO/MANU switch PULSE/TONE switch
Hendeet jack
Ringer volume switch
Monitor volume switch
,Handset
Rearview /
/
Rear cover /\ Telephonelinejack (LINE)
Inner view AC cord
nsor
lease lever
ed roller
~Green release lever
—9—

(2) Oparation Panal
(b
ODisplay ●Shows calendar and clock functions, operation guidance, machine etatua, etc.
OOne-touchKeys ●Frequently dialed numbers can be stored in memory using these 8keys.
(FF) The one-touch keys are also used when entering names in memory.
●Press this key to skip playing for lCM/MEMO to forward. (TAS)
@ERROR Lamp
(FEHLER) ●Lights if acommunication error occurs.
——.
OMENU Key .Press this key when selecting various functions.
@SET Key :●Press this key to confirm selections,
@ANSWER Key .Press this key to set to answer mode and blinks new lCM/MEMO ara
recorded.
OANSWER Lamp .Lights when the unit is set to answer mods and blinks new lCM/MEMO are
recorded.
@SpEED DIAL Key
(KURZWAHL) ●Press this key when using speed dial.
~REDIAUPAUSE Key .Press this key to redial the last number dialed,
(WAHLWDH/PAUSE) .Prese this key to inserf apause between two digits in anumber being dialed.
@Number Keys O–9#* ●These keys are used to dial fax and phone numbers and to change various
functions.
@TONE Key(•) ●Press this key to switch from pulse dialing to Touch-Tone dialing.
(,
A
A(
,
IIL —— I
K=R%iA
●Temporarily places acall on hold.
.Allows you to monitor acall without using the handset.
]@CONTRAST Key I●pressthiskeytoselectcontrast settings, I
I@
RESOLUTION Key
(AUFL&UNG) I●Press this key to select resolution settings.
@~cTIT Kay ●Press to starl transmission or manual reception.
●Press this key to play the recorded ICM. (TAS)
eC&P:oy ●Press to make acopy.
.Press this key to play and record tha MEMO. (TAS)
II . Press to interrupt transmission/reception/copying or to stop the ERROR I
@STOPIC Key indicator lighting.
●Press to cancel various setting and dialing functions and to remove an original
document that has been placed in the unit.
I@ERASE Key I●Press this key to erase the recorded lCM/MEMO, (TAS) I
I@FAST Key I . Press this keyto play lCM/MEMOin high-speed, (TAS) I
I@REWKey I.PressthiskeytosKpplayingforlCM/MEMOtobackward.(TAS) I
I@MIC I . Speaktoth IS when recording the MEMO and your own OGM. I
(

(3) Original documents precautions
■Transmittable original size ■Effective text width
1
1.5 m
(4.9’)
-21 6mm (8.5”)i
Maximum
148 mm ~208 mm(8.2’’)+l
IA1A
(5.8”)
FMinimum ~
148 mm ,
0
IInsertion T
I(5.8”) ~I/, M
+1 direction d
?=
Note: An original other than specified should be reduced
or enlarged by the photo copier then the copy can
be used as an original document,
L
■Effective thickness ——.—-.—
1original sheet multi sheets
thickness 0.05 –0.15 mm 0.08-0.13 mm I
(per sheet) (0.002” -04006”) (0.003” -0.005”) ]
—11—

4. MECHANICAL OUTLINE
@).Transmission Mechanism
When, in Fig. 4-1, the document is inserted, the first sensor detects the
document and the transmission motor starts to rotate.
Subsequently, the automatic document feed roller also rotates and
the document is fed to the position of the platen roller and is stopped.
(the automatic document feed roller also works for the separation of the
document when multiple documents are inserted)
When the START or COPY button is pressed here, the transmission motor
rotates again and the document is fed forward.
@. Reception Mechanism
As shown in Fig. 4-1, the recording paper is pressed by the platen roller and
the thermal head. The platen roller is rotated by the reception motor and
feeds the recording paper forward. When the printing is finished, the
recording paper is fed to the cutter until its cutting position and it’s cut.
There are two sensors for the recording paper, one is for detecting the
recording paper itself and the other is for detecting its jamming.
It is noted that it will be acause of recording paper jam when the recording
paper is not inserted straight or is not rolled tightly.
Originaldocumantpaaa
JamSanaor\
r
M4 (1
(cIs)
Fig. 4-1
—12–

5. TROUBLE SHOOTING
5-1. Function description of each PCB
1. M-1 PCB(Main PCB)
This PCB contains CPU and all of the control circuit.
The following functions are included.
1) LSI so called FAX ENGINE(TC35 168F)
08-bit CPU
@MODEM
-Modulation and Demodulation
-Tone signal generation and detection
-DTMF signal generation
-Pre-recorded voice prompt generation
-Hold on melody generation
@CODEC
-Coding and decoding of image signals
@Image signal processor
-Driving of CIS(Contact Image Sensor)
-Convert analog signal to digital signal(two or multi value)
-Reduction of image(if reading width is B4)
0DMA(Direct Memo~ Access)controller
-It is used when transferring the data from image signal processor to
line memory, fkom line memory to MODEM, thermal head and
CODEC.
@Real time clock
@Stepping motor control
@I/oports
-Mechanism
-Operation panel
-LCD control
2) DSP (Digital Signal Processor) TC8845 lF-02
This is aC-MOS LSI for voice recording and playing which is used APL-MLQ
(Adaptive Predictive Coding with Maximum Likelihood Quantization) method.
Asystem of voice recording and playing is set up by connecting aperipheral circuit
which consists of external memory, ~-law CODEC and audio circuit.
For voice recording: 4-Mbit A-RAM(externally) +4M-bit D-RAM(intemally),
Total 8M-bit.
It can be recorded approx. 14-minutes and 33 seconds in total
3) Gate Arrey(pPD65622)
0Thermal head Control Circuit
@I/oports
-NCU/TEL control
4) 1MBit EP-ROM
-This EPROM contains the program to control CPU
—13–

5) 128KBit SRAM
-This is used for atemporary memory for image signal and various
data memory such as Activity report one touch/speed dial list,
Ram Code Data, etc.
6) Backup control
It is used to keep the stored data of SRAM and Clock.
7) NCU I/F Circuit
This is ainterface circuit for connecting NCU and MODEM
2. M-2 PCB(Operation Panel)
This PCB contains key matrix circuit controlled by ROW and COL
signals and LED circuit.
3. M-3 PCB(NCU PCB)
This is aNetwork Control Unit connecting the telephone line and
this facsimile.
The following fictions are included.
0Hookup detection
@Ringing signal detection
@Dial pulse generation
0Relay drivers
@Tx/Rx separation circuit
4. M-4 PCB(TELEPHONE PCB)
This PCB contains telephone circuit.
The following functions are included.
0Speech Network circuit
@Line monitor fiction
@Ringer circuit
5. M-5 PCB(RX. Mechanism Control)
This PCB contains the driving circuit for Rx. stepping motor and cutter
motor, and sensors for recordtig paper detection and its jamming.
6. M-6 PCB(TX. Mechanism Control)
This PCB contains the driving circuit for Tx. stepping motor and sensors
for detecting the original document.
7. M-7 PCB(Power Supply)
This is apower Supply using the switching regulation techniques.
It supplies +5V, &12V,and +24V.
8. LCD Display
This contains 16x 1LCD and segment/common driver.
9. Thermal Head
This contains 1728dots (8dots/mm) of heat generating elements and driver
circuit.
—
.—
10. Contact Image Sensor(CIS).
This CIS converts scanned image to electrical signal.
—14—

11. Monitor Speaker.
This is aspeaker used for monitoring the line,
Aswitch for monitor control volume is mounted on the Telephone PCB
(M-4).
12. Ringer Buzzer
This is abuzzer for ringing.
Aswitch for ringer control volume is mounted on the Telephone PCB
(M-4).
13. Handset
This contains amicrophone and aspeaker.
5-2. Trouble shooting for mechanical Parts
When trouble occurs, thoroughly confirm the cause of the trouble and carry out appropriate repair.
SYMPTOMS CAUSE COUNTERMEASURE
The document, even when 1. The platen roller is not rotating 1. Press the green release lever,
inserted, is not fed. properly. then insert the document again.
2. Dirt on the ADF roller. 2. Clean the ADF roller.
(roller 1) (See page 8)
3. The sensor 1is not adjusted 3. Adjust the level of the sensor 1.
properly or out of operation. Confirm the operation of the
sensor 1.
(See page 12)
The documents are fed overlapping. Dirt on the rubber sheet. Clean the rubber, sheet.
(More than one sheet are fed at a(See page 24 Fig. 6-16)
time.)
The document is not fed straight, 1. The original guide is not adjusted 1. Adjust the original guide along by
along by the original. the original.
2. Dirt on the platen roller. 2. Clean the platen roller.
(roller 2) (See page 8)
3. Pressure for the Contact Image 3. Adjust the pressure repositioning
Sensor is not equal in the both the Contact Image Sensor.
sides. (See page 23)
When copying or transmitting the The exceeding part of the original Clean the platen roller. (roller 2)
exceeding part of the original is on the platen roller is dirty. (See page 8)
printed as blurred black if less than
A4 or letter size of original is used.
When copying, white vertical line 1. There is dirt sticking to the 1. Clean the thermal head.
appears that is not on the original. thermal head- (See page 24)
2. The heating element of the 2. Replace the thermal head.
thermal head is broken. (See page 24)
Although the recording paper is in 1. The recording paper sensor is 1. Adjust the level of the 1st Sensor.
the position, “CHECK PAPER not adjusted properly or out of (See page 12)
ROLL” is indicated on the LCD. operation.
2. The recording paper is not 2. Place the recording paper
placed in the proper position. properly.
No cutting the recording paper. The copy cut previously still remains Remove the copy remained in the
in the cutter position. cutter position, then confirm the
performance. (Still same situation,
replace the cutter.)
(See page 24)
When copying with High grade The recording paper is placed Place the recording paper without
thermal paper, the copy is shrank. slackly. slackness.
—15—

5-3. Trouble shooting for circuitry
(1) No display on LCD light when Power is turned ON.
Check the connection of CN6 (M-1) and CN61 (M-6).
Check pin No. 12 of CN7 (M-l), +5V? Check Power Supply (M-7).
IYES
~ ~~
Check the connection of CN2 and CN21.
Check the connection of CN22 (M-2) and LCD connector. .. “
YES Sk%mr la
t
Check the Main PCB (M-1) p-mor
(2) Key-in is impossible from the operation panel.
ICheck the same as described (l). I
I I
YES
Check the connection of CN2 (M-l). Check the Main PCB (M-1).
III
1I
Check the operation panel PCB (M-2).
(3) LCD indcates “CHECK PAPER ROLL”.
Is recording paper set properly?
IYES
~
In the Receiving cover closed securely’?
Check the connection of CN5 (M-l).
is/PAP (CN5-pin No. 4) less than 0.5V? Check the reception mecha PCB (M-5.)
IYES INO
Check the M-1 PCB. Check the recording paper SW on the M-5 PCB.
—16—

(4) No motor rotates when the original is inserted.
=
>
NO
1s/S1 (CN6, pin No. 14) low? ~.— —–..-—
iCheck the connection of CN6 (M-l).
_.—
YES
~Acheckthesl ““-
Check the connection CN6 (M-1) and CN61 (M-6 )
IYES
ls/TMIO-3 (CN6, pin No. 20-23) OK?
~-a====
III
1
JYES
ICheck the connection of CN62. I
IYES
Check the Transmission Mecha control PCB (M-5).
1YES
!I
Check the Transmission motor.
(5) No copy is made. ,, NO
Is the Head test OK? (See page 27) Check the printing circuit
1YES ;;, .,.. ‘,’-!,
Check the reading circuit.
(a) Printing Circuit (To be confirmed by the Head test)
.— Check the connection of CN4 (M-1) and CNTPH (Thermal head). I
IYES
Does +24V appear at CN7, pin No. 15? Check the power supply PCB (M-7).
IYES
Does HVON (CN7, pin No. 1) work properly (High at printing)?
IYES NO
Do the signals (DATA (CN4, pin No. 6), CLK (CN4, pin No. 7)) appear normally? ●
)YES
Do the signals (/STBl, /STB2 (CN4, pin No. 8, 9)) appear normally?
IYES
Check the Thermal head. ~
I
—17–
Check the M-1 PCB.

(b) Reading Circuit (To be checked by Scanning test)
Check the connection of CN6 (M-1) and CN61 (M-6).
1OK
ICheck the connection of CN63 and CNCIS (CIS). I
iOK YES
Does VIDEO (CN6, pin No. 10) appear normally?
IYES NO
Is GLED (CN6, pin No. 2) low?
IYES
Do the signals (S1(CN6, pin No. 5) and CLK (CN6, pin No. 3)) appear normally?
1
IYES
(6) Can not enter the TxJRx. mode by pressing -] switch under OFF-HOOK condition
(a) In case of the extension tetephone connected to the SFX-32
Check the connection of extension telephone and MJ41 (M-4).
IYES
ls/HS (CN31, pin No. 8) low on the NCU PCB (M-3)? Check the NCU (M-3).
1
1+
(b) In case 01the Built-in telephone
Check the connection of CN31 (M-3) and CN3 (M-l).
1OK
Check the connection of MJ42(M-4) and handset. I
.... -,
.>.,,
iOK NO
ls/DHS (CN43, pin No. 7 on M-4) low? Check the M-4 PCB.
1YES
Check the M-1 PCB.
—18—
--