Samsung SF-4300C Manuale utente

SF4300C

INKJET PRINTER COMPOUND CONTENTS

1. Precaution

2. Referential Information

3. Specifications

4. Disassembly & Assembly

5. Circuit

6. Repair

7. Exploded View

8. Packing

9. Circuit Diagram & Parts List

10. Block Diagram

11. PCB Layout

12. Wiring Diagram

SERVICE

Manual

ELECTRONICS

Samsung Electronics 1-1

1. Precautions

1-1 Safeguards

Please read these instructions carefully and completely.

1. Unplug this product from the wall outlet before

you disassemble it.

2. Replace defective parts with the same parts as

them.

3. Check the insulation of electricity-conducting

parts (metal plate or input terminal) that can easi-

ly contact AC plug blades.

4. How to check insulation: Pull the AC plug out of

the outlet and measure insulation resistance of

each blade.

5. Insulation resistance of AC plug blades against

electricity-conducting parts should be 1 megaohm

or over.

6. Always use it after connecting the ground of mea-

suring instruments to the ground of chassis. And

after you use it, separate the ground of the

measuring instruments lastly.

1. Do not use this product in a humid place nor out-

door.

2. Do not place this product on an unstable stand or

table. The product may fall, causing serious dam-

age to the product.

3. Use this product in a well-ventilated place.

4. Slots are provided for ventilation. Never push

objects of any kind into this product through

these slots as they may result in a fire or electric

shock. Never spill liquid of any kind on the prod-

uct.

5. Power-supply cords should be routed so that

they are not likely to be walked.

6. Use this product in a place big enough to support

printers.

7. Install this product within 180cm from the com-

puter and 150cm from the power outlet.

8. This product should be operated only from the

type of power source indicated on the marking

label.

9. If you use extension cords, be sure they have

three-wire grounding-type power outlets. Do not

overload wall outlets and extension cords. Never

load one wall outlet with over 15 ampere.

10. Unplug this product from the wall outlet before

cleaning. Do not use liquid cleaners or aerosol

cleaners. Use a dry cloth for cleaning.

11. Use only standard paper, OHP film, andap-

proved envelopes.

1-2 Servicing Precautions

Please read these instructions carefully and completely.

1-2 Samsung Electronics

1-3 Static Electricity Precautions

Semi-conductors are easily damaged by static elec-

tricity. They are usually called electrostatically

sensitive devices (ESD). For example, there are IC,

FET, and semi-conductor chips.

1) Before you handle semi-conductor parts, be sure

to discharge electricity by touching earth connec-

tion or putting on a wristband. (Before you turn

on the product, put off the wristband to prevent

electric shock.)

2) Remove the static electricity protective device

and then place the assembly on the surface of

electric conductors such as aluminum foil to

prevent static electricity from accumulating.

3) Do not use chemicals like Freon. These chemicals

produce static electricity that may damage parts.

4) Solder ESD parts with a grounded soldering iron.

5) Use static electricity protective solder. Solder not

marked Ôstatic electricity protectiveÕ may accu-

mulate static electricity that damages ESD parts.

6) Do not get rid of the static electricity protective

cover of ESD parts until you are ready to replace

them. Most of ESD parts are packed, with elec-

tricity conducting materials in contact with ESD

parts leads.

7) Make static electricity protective materials con-

tact the chassis or the circuit where parts will be

mounted, before you remove the materials from

ESD parts to be replaced.

8) Minimize your motion when you handle the ESD

parts from which static electricity protective

materials have been removed. Static electricity is

generated when your clothes are frictionized or

you walk on the carpet.

9) Be careful not to bend pins when you handle IC.

10) Pay attention to directions when you mount

parts on PCB.

11) Overheat during soldering may damage the

parts completely. Heat affects all the parts.

Samsung Electronics 2-1

2. Referential Information

2-1 Abbreviations & Acronyms

Abbreviations Definition

MFP Multi Function Peripheral

I/F INTERFACE

UART Universal Asynchronous Receiver/Transmitter

ECP Expended Capasilities port : 8bits Data

CR Carriage Return

LF LINE FEED

CIP COLOR IMAGE PROCESSOR

CCD Charge Coupled Device

A/D ANALOG TO DIGITAL

D/A DIGITAL TO ANALOG

LIU Line Interface Unit

TIT Transformer Input from Transformer

ROT Receive Output Transformer

LI Line Input

2-2 Samsung Electronics

2-2 Location & Outline of Pins of Electrical Parts

Vcc EB1

20 19 18 17 16 15 14 13 12 11

12345678910

B2 B3 B4 B5 B6 B7 B8 CERAMIC

CASE 732-03

DIR A1 A2 A3 A4 A5 A6 A7 A8 GND

LOGIC AND CONNECTION

DIAGRAMS DIP (TOP VIEW) J SUFFIX

PLASTIC

CASE 738-03

N SUFFIX

SOIC

CASE 751D-03

DW SUFFIX

20 1

1. Gate 2. Drain 3. Source

R1 R2

R1=10KΩ

R2=0.6KΩ

TO-220

1. Base 2. Emitter 3. Collector

SOT-23

1. Base 2. Collector 3. Emitter

123

SOT-89

Samsung Electronics 2-3

8 DIP

8 SOP

BLOCK DIAGRAM

OUT 1

IN1(- ) _

IN1(+ )

GND

Vcc

OUT 2

IN2 (- )

IN2 (+)

Vcc Q6 Q6 Q12 Q17

Q19

Q20

Q15

Q18

Q11

Q10

Q13

Q14

Q21

OUT

IN(-)

IN(+)

2-4 Samsung Electronics

FC2

FC1

Vin

Vo2

Gnd

Vcc

Vo1

(Top View)

PIN CONNECTIONS

Block Diagram Simplified Application

Audio

Input

0.1 Ri

3.0k

C2*

5.0uF

1.0uF

75k

Vin

FC1

50k

This device contains 45 active transistors.

*=Optional

Differential Gian=2 x

50k

125k

FC2 1

Vcc

Vo1

Vo2

Speaker

GND

Bias

Circuit

MC34119

Chip

Disable

P SUFFIX

PLASTIC PACKAGE

CASE 626

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO-8)

DTB SUFFIX

PLASTIC PACKAGE

CASE 948J

(TSSOP)

14DIP BLOCK DIAGRAM

14SOP

OUT2

OUT1

Vcc

IN1(-)

IN2(-)

IN1(+)

IN2(+)

Samsung Electronics 2-5

VCC Vcc

Vcc

N.C

Vcc

N.C

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

VCC

VCC Vss

Vss

N.C

DQ8

DQ9

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15

UCAS

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

N.C

RAS

*A11(N.C)

*A10(N.C)

27 W

UCAS

Vss

N.C

DQ8

DQ9

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15

UCAS

RAS

*A11(N.C)

*A10(N.C)

PIN CONFIGURATION (Top Views)

KM416C/V10(2)00BJ KM416C/V10(2)00BT

1.Emitter 2.Base 3.Collector

123

TO-92

A15

A14

A13

A12

A11

A10

A17

RY/BY

RESET

A16

BYTE

Vss

DQ15/A-1

DQ7

DQ14

DQ6

DQ13

DQ5

DQ12

DQ11

DQ3

DQ2

DQ9

DQ1

DQ8

DQ0

Vss

DQ10

DQ4

Vcc

A15

A14

A13

A12

A11

A10

A17

RY/BY

RESET

A16

BYTE

Vss

DQ15/A-1

DQ7

DQ14

DQ6

DQ13

DQ5

DQ12

DQ11

DQ3

DQ2

DQ9

DQ1

DQ8

DQ0

Vss

DQ10

DQ4

Vcc

2-6 Samsung Electronics

Powerdip 12+2+2

(Plastic Package)

ORDER CODE:PBL3717A

OUTPUT B

INPUT 1

PHASE

PULSE TIME

Vs(B)

Vss

GND

SENSE RESISTOR

COMPARATOR INPUT

INPUT

OUTPUT A

Vs(A)

REFERENCE

GND

Powerdip

12+2+2

ORDERING NUMBERS:

TEA3718SDP

TEA3718DP

ORDERING NUMBER : TEA3718SP

MULTIWATT-15

ORDERING NUMBERS:

TEA3718SFP

SO-20

TEA3718SP

(Multiwatt-15) TEA3718SFP

(SO-20) TEA3718DP

TEA3718SDP

(Powerdip 12+2+2)

OUT B

Us Us

Uss

PHASE

IN1

N.C.

GND

PULSE TIME SENSE

REFERENCE

IN0

COMPARATOR INPUT

N.C.

PRE-ALARM OUT

GND

OUT A

N.C.

GND

ALARM OUTPUT

REFERENCE

IN0

IN1

Uss

Note:HEATSINK SURFACE CONNECTED TO PIN B

PHASE

COMPARATOR INPUT

DUT B

SENSE

PULSE TIME

DUT A

218

OUT B

Uss

PHASE

IN1

GND

PULSE TIME SENSE

REFERENCE

COMPARATOR INPUT

IN0

GND

OUT A

214

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