Samsung SF-4300C User manual

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
20 1
20 1
1. Gate 2. Drain 3. Source
1
2
3
C
E
B
R1 R2
R1=10KΩ
R2=0.6KΩ
..
..
TO-220
1. Base 2. Emitter 3. Collector
1
3
2
SOT-23
1. Base 2. Collector 3. Emitter
123
SOT-89

Samsung Electronics 2-3
8 DIP
8 SOP
BLOCK DIAGRAM
1
2
3
4
8
7
OUT 1
IN1(- ) _
+
_
+
IN1(+ )
GND
Vcc
OUT 2
IN2 (- )
IN2 (+)
6
5
Vcc Q6 Q6 Q12 Q17
Q19
Q20
R1
Q15
Q18
Q11
C1
Q10
Q9
Q4
Q3
Q2
Q1
Q8
Q13
Q14
Q21
R2
OUT
IN(-)
IN(+)

2-4 Samsung Electronics
CD
FC2
FC1
Vin
Vo2
Gnd
Vcc
Vo1
18
27
36
45
(Top View)
PIN CONNECTIONS
Block Diagram Simplified Application
Audio
Input
Cj
0.1 Ri
3.0k
C2*
5.0uF
C1
1.0uF
Rf
75k
Vin
FC1
4
3
6
5
8
7
#2
_
+
#1
_
+
2
50k
This device contains 45 active transistors.
Rf
Rj
*=Optional
Differential Gian=2 x
50k
125k
FC2 1
Vcc
Vo1
Vo2
Speaker
CD
GND
Bias
Circuit
MC34119
Chip
Disable
81
8
8
1
1
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
1
1
OUT2
OUT1
Vcc
IN1(-)
IN2(-)
IN1(+)
+
_+ _
+
_
+
_
IN2(+)
1
2
3
4
5
6
7
14
13
12
11
10
9
8

Samsung Electronics 2-5
VCC Vcc
Vcc
N.C
N.C
Vcc
N.C
A0
A1
A2
A3
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
VCC
VCC Vss
Vss
Vss
A4
A5
A6
A7
A8
A9
OE
N.C
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
UCAS
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
N.C
N.C
W
A0
A1
A2
A3
RAS
*A11(N.C)
*A10(N.C)
42
37
22
41
40
39
38
36
35
34
33
32
31
30
26
25
24
23
29
28
27 W
UCAS
21
6
1
20
19
18
17
16
15
14
11
10
9
8
7
5
4
3
2
13
12
Vss
Vss
Vss
A4
A5
A6
A7
A8
A9
OE
N.C
N.C
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
UCAS
UCAS
RAS
*A11(N.C)
*A10(N.C)
21
22
6
1
20
19
18
17
16
15
14
11
10
9
8
7
5
4
3
2
13
12
44
43
38
42
41
40
39
37
36
35
34
33
31
32
30
26
25
24
23
29
28
27
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
A9
A8
NC
NC
NC
NC
NC
A17
A7
A6
A5
A4
A3
A2
A1
RY/BY
WE
RESET
A16
BYTE
Vss
DQ15/A-1
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ11
DQ3
DQ2
DQ9
DQ1
DQ8
DQ0
OE
Vss
CE
A0
DQ10
DQ4
Vcc
1
2
3
4
5
6
7
8
9
10
13
14
16
17
18
19
20
21
22
23
24
15
11
12
48
47
46
45
44
43
42
41
40
39
36
35
33
32
31
30
29
28
27
26
25
34
38
37
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
NC
NC
NC
A17
A7
A6
A5
A4
A3
A2
A1
RY/BY
WE
RESET
A16
BYTE
Vss
DQ15/A-1
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ11
DQ3
DQ2
DQ9
DQ1
DQ8
DQ0
OE
Vss
CE
A0
DQ10
DQ4
Vcc
1
2
3
4
5
6
7
8
9
10
13
14
16
17
18
19
20
21
22
23
24
15
11
12
48
47
46
45
44
43
42
41
40
39
36
35
33
32
31
30
29
28
27
26
25
34
38
37
S

2-6 Samsung Electronics
Powerdip 12+2+2
(Plastic Package)
ORDER CODE:PBL3717A
OUTPUT B
INPUT 1
PHASE
PULSE TIME
Vs(B)
Vss
GND
GND
16
10
9
15
14
11
13
12
SENSE RESISTOR
COMPARATOR INPUT
INPUT
OUTPUT A
Vs(A)
REFERENCE
GND
GND
1
7
8
2
3
6
4
5
Powerdip
12+2+2
ORDERING NUMBERS:
TEA3718SDP
TEA3718DP
ORDERING NUMBER : TEA3718SP
MULTIWATT-15
ORDERING NUMBERS:
TEA3718SFP
SO-20
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TEA3718SP
(Multiwatt-15) TEA3718SFP
(SO-20) TEA3718DP
TEA3718SDP
(Powerdip 12+2+2)
Us
OUT B
Us Us
Uss
PHASE
IN1
N.C.
N.C.
GND
GND
PULSE TIME SENSE
REFERENCE
IN0
COMPARATOR INPUT
N.C.
PRE-ALARM OUT
GND
GND
OUT A
Us
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
3
1
8
10
9
4
7
5
6
218
20
13
11
12
17
14
16
15
19
OUT B
Us
Uss
Us
PHASE
IN1
GND
GND
PULSE TIME SENSE
REFERENCE
COMPARATOR INPUT
IN0
GND
GND
OUT A
3
1
8
4
7
5
6
214
16
9
13
10
12
11
15