samsung SF600 Service Manual

2. Specification

2-l Transmitter

Parameter

Document Size

Document Thickness Scan Line Length Effective Scanning Width Scanning Method

Resolution

l--

Normal

Max. 216 x 1500 mm

Min.

Horizontal

Vertical

Horizontal 1 203

Vertical

Specification

210 x297 mm

l52x76mm

0.085 x 0.115 mm A4

paper,1

210 mm Flat-bed scanning using CIS Intermittent scanning by stepping motor

Super Fine 98 lines/in (3.85 lines/mm) Fine Standard

728 scan elements along 216 line length

pels/in

(8 dots/mm)

196 lines/in (7.7 lines/mm) 392 lines/in (15.4 lines/mm)

2-2 Receiver

Coding Scheme Recording Paper Size Effective Recording Width Recording Method Resolution

Parameter

Horizontal

Vertical

Specification

MH (Modified 216 mm x 30 m, core 12.7 mm diametre

216 mm Thermal recording with solid state Thermal Printing Head 203

pels/in

Super Fine 98 lines/in (3.85 lines/mm)

Fine

Standard

Huffman)

(8 dots/mm)

196 lines/in (7.7 lines/mm) 392 lines/in (15.4 lines/mm)

2-1

Samsung

SF6OO/SFXOO

Ekctronics

Specifications

2-3 Line Control Block

Parameter

Communication Facility

Line Coupling Transmission Speed Modem

Carrier Frequency

Control Signal

Output Level Input Sensitivity Input & Output Impedance

Specification

Public Switched Telephone Network (PSTN) Direct coupling

9600, 7200,4800,2400 bps

QAM, DPSK and FSK

(V-29, V.27ter

1700 Hz 1800 Hz

1100 Hz (CNG) 2100 Hz (CED) 300 bps (FSK) 0

dBm

to - 15 dBm +O.O/-3

dBm

to -43

600 ohm +- 30%

with fall back function and V.21)

(9600/7200 (4803/2400

dBm

bps) bps)

dBm,

adjustable 1 dB steps

2-4 Others

Parameter

Dialling Signal

Diailing

Memory Capacity Power Requirement Temperature Relative Humidity

Dimension

Method

Specification

DP/DTMF Direct dialing, Memory dialing, Redialing 10 memory dial (power on)

230-240 VAC, 50-60 Hz

50 to 95 20 to 80 % RH (Non-Condensing)

Width 340 mm Depth 235 mm

Height

Weight

113

SF1600: SF600:

7.96 lb (3.61 kg)

(10

to 35 “C)

8.69 lb (3.94 kg)

2-2

Samsung Electronics

SF6OO/SF1600

3. Operating Instructions

3-l Service Mode

In service mode (tech) mode, the technician can check the machine and perform various test to isolate the cause of a malfunction.

To enter service mode, press MENU/POLL, #, at the right end of the LCD to confirm that the machine has entered mode, the machine still performs all normal operations. To return to normal user mode, press ‘MENU/POLL, #,

Options changed while in service mode do not remain changed, unless you first clear machine memory. To communicate using via direct connection with another unit, press OHD/V.REQ followed by

START/COPY.

1,9,3,4’,

in sequence again, or turn the power switch off, then on again.

1,9,3, -1-,

in sequence, and ‘0101 95

service

(tech) mode. While in service

12:OOT’

will be displayed

3-2 Changing Options

3-2-l Selectable Options

Grey

scale level

Choose either 16 or 32 grey scale levels. The selected level is also used in the photo sending mode. If you select 32 levels, transmission time is

longer, however the result at the receiving end will be superior. This mode works remote machine is capable of super-fine mode.

oylZy

when the

Rinq Before Answer

Select the number of rings (1 to 7) the machine allows before it answers a call in automatic receiving mode.

PaDer

Default = YES

Cuttinq

(SF1

600 onlv)

Confirmation

Select whether a confirmation report prints each time a user sends a fax.

YES: The machine prints out the report automatically after each fax sent.

ERRORThe machine prints a report only when

there is an error. NO: The machine does not print the report automatically. User can print the list on demand.

3-1

ReD0t-t

Printout

Choose cutting or non-cutting mode.

YES: The paper will be cut automatically after each document received or copied. NO: The machine prints a tear line and does not cut the paper.

Remote Receive Code

Default = 9

This code can be used only with a phone extension connected to the FAX machine. The user can initiate FAX receive mode by entering a remote

Samsung

Electronics

SF6OO/SF1600

Operating Instructions

receiving code on the factory preset to *9*, and the middle digit may be changed to any digit between 0 and 9.

extension

phone. The code

Modem Speed

Select baud rate of 9600,7200,4800, or 2400 bps. The lower the baud rate, the larger the acceptable error rate. T30 motocol has a fixed bps in the

set to 9600 or 7200 bps, the RX

V.29

or 2400

pro&co1

V.27 bps,

the RX speed will

mode. When the’TX speed is

ter. When the TX

sDeed

’ ‘“’ ’

speecl will

^_^^J *^

bpt-eu I> ser ^

be V.27 ter.

--. I-

of 300

’

be eitner

Ant-In

YWIJ

Silence Detection Time

D+lrlf

= UlllilllitCn

In RNS/FAX mode, after a call is picked up by the answering machine, the fax machine monitors the line. If a period of silence is detected on the line at any time, the call will be treated as a fax message and the fax machine begins receiving. Silence detection time is selectable between limited (about 12 seconds) or unlimited time.

Reception Level

Defoz1!t

= -33

If set to -48

between 0 and -48

1113172

dBm, recep

dBm.

ftion

sensitivity will be

Cable Eaualiser

Copper telephone wire attenuates less than high frequenclcs. The longer a cable is, the more pronounced the effect. To compensate for this machine to match the cable length currently used. Select short or long.

attenuation

you may need to set the

lo\\?

frequencies

Remote Receive Code (first& & last digit)

Defndf

Cilnnnr, “vop-out

Time

3gfod: = 2 seconds

If any signal (tone, voice, fax tone, etc.) is detected during the silence drop-out time, prior accumulated silence time will be ignored, and silence detection time is restarted.

Transmission Level

Defizrlt = -9dBm

FCC requires that transmission level be less than

-9

dBm.

From -9 dBm to -15 dBm is

acceptable. You can set the transmission level to between 0 and -15 dBm in

control panel keypad. Accuracy is + 0 / -3 dBm.

1dB

steps using the

To place the machme phone extension, the fax machine must detect the

receive code, which comes factory preset to * 9 * . YOU can change the first and last characters to any

digit including * and #. But they must be different from the middle digit.

mto

receive mode via a

3-2-2 Changing Options

Press MENU/POLL, 2, START/COPY in sequence. Press v or A to select the desired option item. When the desired option item appears, use ) or 4 to change the status of a

selected function.

3-2 Samsung Electronics

SF6OO/SF1600

Operating Instructions

3-3 Test Mode

Test mode is used to test machine functions. To enter test mode, press MENU/POLL, 9, START/COPY buttons in sequence.

TPH TEST

You can print a TPH test pattern and check the

heating element of TPH with this test pattern.

Figure 3-1 is a sample test pattern.

Figure 3-1: TPH Test Pattern

CIS TEST

You can check the scanning elements of the CIS (Contact Image Sensor) and print a shading waveform graphically with dots. The graph waveform will resemble figure 3-2, below.

3-3

Figure 3-2: CIS Shading Waveform

Samsung

SF6OO/SF1600

Electronics

Operatin;;

Instruction5

MODEM TEST

The modem

the telephone line. You can check the following:

FSK test

tones: 1100

traming: 9600,7200,4800,2400

DTMF TEST

The machine tests its DTMF (Dual Tone Multi Frequency). When you press any key on the keypad, including * and #, you will hear the corresponding key tone.

tvill

send various transmit signals

HL,

1650 Hz, lS50 Hz, 2100 Hz

bps

(~~600 only)

3-4 Report Printout

LINE PATH TEST

Tests the telephone line loop

(~~600 only)

ROM TEST

Tests

machtne

result and the software version appear in the LCD in the

follorirng

CHKSUM=

ROM (Read

format:

FE; VOl,

01-11~

Memory). The

MEMORY CLEAR

Erases contents of RAM. When memory is cleared, the machine returns to default settings.

A number of useful reports can be printed in service mode. One of these lists is the protocol list, which contains detailed information which may be required when contacting technical support. To print this list, press MENU/POLL, 3, START/COPY in sequence.

When a report name appears in the display, scroll through the list of reports by pressing v or A. When a desired report is selected, press START/COPY.

CONFIRMATION REPORT

Shows the last transmission result.

TX/RX JOURNAL

Shows information about faxes sent and received.

TELEPHONE NUMBER LIST

Lists all numbers stored in the machine’s

touch and speed dialling memory.

SYSTEM DATA

LET

one-

PROTOCOL LIST

This list is available in the service mode only, and shows the sequence of the protocol during the most recent TX or operation. You can check for send and receive errors with this list.

If a communication error occurs while the machine is in service mode, the protocol list will print automatically.

CCITI

group 3 T.30

HELP LIST

This

report illustrates the machine’s basic functions and commands. Use as a quick reference guide.

Shows all options that were set in user mode and service mode.

3-4

Samsung

SFhOO/SF1600

Electronics

3-5 LCD Display

3-5-l During communication

In user mode, the LCD shows the remote

machme’s

(send or receive), and page number.

In service mode, the display shows the

communication type, abbreviations for the CCITT Group 3 T.30 protocol as they occur, the protocol type kbps, and line time.

TTI number, communication type,

(GL?),

coding type (MH/MR), baud rate in

3-5-2 If a communication problem occurs:

In user mode, the display shows one of the following reasons:

SEND ERROR, or RECEIVE ERROR.

In service mode, the messages available in user mode, as well as additional error messages not available in user mode.

Error messages shown in service mode only are as follows:

PRE-MESSAGE ERROR: problem occurred during phase B of session MESSAGE ERROR: problem occurred during phase C of session POST-MESSAGE ERROR: problem occurred during phase D of session LINE ERROR: machine cannot connect or has lost connection with the remote machine

PAPER JAM, CUTTER JAM,

displai

shows all error

Additional messages, not shown above, will appear in the TX/RX journal printed in service mode.

3-5

Samsung

SF6OO/SF1600

Electronics

Disassembly and

Reassembl!

4-3 CIS & Roller

Open the operation panel,

white roller against the CIS glass.

2. Turn the shaft-bushing located at each end of the roller in the direction of arrow, while

pullmg rt

Lift this assembly. Be careful not to lose the

bushings from the roller ends.

To clean the CIS and roller, wipe with water a damp cloth.

slightly inward.

and

you will find a

4-4 Top Cover

Figure 4-3

Open the operation panel.

Loosen the six screws fastening the top cover.

Lift the top cover carefully.

4-2

Figure 4-4

Samsung Electronics

SF6OO/SFl600

4-5 Separation of Operation Panel Assembly

Loosen the

and CIS.

Carefully lift the harness.

Remove the frame hinge by pulling it in the

direction of arrow.

Lift the operation panel assembly.

txvo

screws fastening the dumm)

4-6 Base

4-6-l CIS Assembly

Figure 4-5

Lift the CIS assembly by pulling it slightly to the right.

2. Unplug the connector.

Remove the CIS from the CIS holder.

Note: During reassembly, be sure the hole located in the center of the CIS clicks into the holder.

4-3

Figure 4-6

Samsung

SF6OO/SF1600

Electronics

Disassembly and Reassembly

4-6-2 Automatic Document Feeder Roller Assembly

Hold the bushing as shown

Remove the roller assembly from the with screwdriver.

Lift roller assembly, while pulling in the

direction of arrow.

III

figure

4-7.

bushing

4-6-3 Removing Speaker

Figure 4-7

Lift the speaker assembly and remove the

1. rubber.

2. Unplug the connector.

4-4

Figure 4-8

Samsung Electronics

SF6OO/SF1600

4-6-4 Motor Bracket Assembly

Loosen the four

3 Loft

the assembly.

3. Unplug the connectors.

screlvs.

4-6-5 Thermal Printed Head Assembly

Figure 4-9

Loosen the three screws fastening the chassis

1. board.

Remove the anti-curl plate assembly by pulling in the direction of arrow while pulling

down the snap fastened on the base.

Loosen the screws fastening TPH bracket.

Unplug the connector.

Lift the assembly in the direction of arrow.

4-5

Figure 4-l 0

Samsung

SF6OO/SF1600

Electronics

Disassemblv

and

Reassemblv

4-7 RX Unit

4-7-l RX Unit

Open the RX cover by pushing the locking

knob in the direction of arrow, as shown in the inset in

Unplug the connector and GND wire

Remove the RX unit by pulling it in the

direction of arrow (SF1600 only).

fipre

4-10.

4-7-2 Platen Roller

Figure 4-l 1

Loosen the two screws and remove rocker,

1. then remove the RX cover.

Remove spring, frame sheet, and E-ring.

Loosen the gear and bushing in the direction

3. of arrow.

4. Remove the roller.

4-6

Figure 4-l 2

Samsung

SF600/SF1600

Electronics

Disassembly and Reassembly

4-7-3 Automatic Paper Cutter (SF1600 only)

Remove the paper guide by loosening one

screM’.

Remove the paper cutter from the bracket by

2. loosening two screws.

Figure 4-l 3

4-8 Chassis Board

4-8-l Main, LIU, and Power Boards

Loosen the three screws fastening the chassis

board.

Loosen all screws fastening the remaining

boards and unplug all connectors from the

boards.

Lift the boards.

Note: Be careful that CIS and main connector harness does not touch the no-paper sensor.

4-7

Figure 4-14

Samsung

SF6OO/SF1600

Electronics

Disassembly and Reassembly

4-8-2

Removing Buzzer

1. Unplug the connector.

Remove the buzzer by bending the locker.

Figure 4-l 5

4-8

Samsung Electronics

SF6OO/SF1600

5. Circuit Description

5-1 General

The main circuit board consists of memory, MODEM, TX- and RX-related circuitry, and the Integrated

Facsimile Controller (IFC), which includes the CPU and I/O device drivers and controls the system.

5-2 Memory Map

The external memory of the CPU is divided into 32kB RAM

(OOOOH

(FFOOOOH through FFFFFFH).

CPU

(Logical)

FFFFFF

FOOOOO

OFFFFF

Address Space

through SOOOH) and 64kB ROM

OOFEFF OOFEEO

OOFE80

OOFEOO

OOFDFF OOFDCO

OOFD60

OOFDOO

5-l

000000

Figure 5-1: XFE-B Memory Map

OOFBFF

Reserved

Shading Inversion OOFBDO

DBCMC Buffer OOFBCO

Dither Table

OOFBEO

OOFB80

Samsung

SF6OO/SFlf500

Electronics

Circuit Description

5-3 IFC

The Integrated Facsimile Controller (IFC) control panel communication, real

trme

crrcuit consrsts

of system reset circuitry, Data and Address Bus,

clock (RTC), image sensor, motor driver control, and I/O ports.

5-3-l Data & Address Bus Control 5-3-2 System Clock

/RD

and

/WR

signals are with the PH2 clock in a high state, and an internal wait state occurs in the TSTCLK (6 MHz). These signals are sent to the RAM, ROM, and the MODEM m order to read or write data when a chip select line is active.

/CSO\: RAM chip select

/ROMCS:

/MCS:

DO -

A0 - A15:

ROM chip select

MODEM chip select actrve (low)

D7:

8 bit data buses

address buses

/RD

actr\se

actrve m

and

/WR

(low)

actrve

the low state,

ports of

(low)

The 6 MHz internal clock frequency is derived by dividing the MODEM 12 MHz system clock by two.

MOTOR

DRIVER

(MOTOR)

SCANNER CONTROL

AND

PROCESSING

IFC(XFE)

START

VIDCTL

H/B

Vin

+Vref

/RESET

IBATRST

Figure 5-2: XFE-B Hardware Interface Signals

EXTERNAL

MODEM

5-2

Samsung

SF6OO/SF1600

Electronics

Circuit Description

5-3-3 Real Time Clock (RTC)

This circuit receives clock pulses from an external

32.768

kHz

crystal, which it divides into hours,

minutes, seconds, year, month, and day.

32.768 KHz

PRESCALER

BUSY FLAG CLEAR

BUSY

DETECT

LEAP YEAR

A battery

XFE can up-track 32 years, beginning with 1997.

BUSY FLAG

mamtains

operation when polver is

3 STATE

DRWER

off.

Figure 5-3: RTC Block Diagram

5-3-4 Print Control

The PCLK and PDAT signals synchronise serial

print data to the TPH. PLAT latches TPH serial print data to the TPH from a shift register through

CLOCK

Z”

STBl

STB2

PDAT. STBO - ST63 enable TPH printing in four sequential intervals.

5-3

Figure 5-4: Printer Timing

Samsung

SF6OO/SF16:0

Electrcti~

Circuit Description

5-3-5 TPH A/D Converter

The

TADC

is composed of a 6 bit DAC, comparator, filter, and 9 bit up/down counter. The 6

MSBs

of the 9 bit counter generate a reference signal to the comparator. TPH temperature is sensed by comparing DAC output voltage to the comparator with the thermistor

input voltage (THDI), which originates as an output signal from the TPH. It then supplies the proper strobe pulse to the TPH. The thermistor input voltage (THDI) operates within a range of to 4v.

THDI

:---. FilterClock

Figure 5-5: TPH A/D Converter

Vcc

Compararor

Counter Clock

DAC

6-hit

6 MS&

m z a

THDI

Thermal Head Thermistor

(T)

Approximate values of Rl and R2 can be calculated from the following formulas:

R2=[1SRt (Tl) R1=0.25

where:

Tl -

min temperature

T2 - max temperature

x Rt (T2)]/IRt

[I32

x Rt

(Tl)-16Rt (T2)]

(Tl)]JR2+Rt (Tl)]

Figure 5-6: THDIRPH Wiring Diagram

Samsung

SF6OO/SF1600

Electronics

+ 44 hidden pages

samsung SF600 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual