Samsung T220 - SyncMaster - 22" LCD Monitor User manual

LCD-MonitorLCD-Monitor
ChasChas
sis sis
: :
LL
TW22HS TW22HS
/ /
LL
TW22GSTW22GS
LTW20HS / LTW20GSLTW20HS / LTW20GS
Model :Model :
T220 / T220GT220 / T220G
T220N / T220GNT220N / T220GN
T200 / T200GT200 / T200G
T200N / T200GNT200N / T200GN
SERVICESERVICE
ManualManual
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T220 / T220G / T220N / T220GNT220 / T220G / T220N / T220GN
T200 / T200G / T200N / T200GNT200 / T200G / T200N / T200GN
Refer to the service manual in the GSPN (see the rear cover) for the Refer to the service manual in the GSPN (see the rear cover) for the
more information.more information.
1. Precautions1. Precautions
2. Product specifcation2. Product specifcation
ss
3. Disassembly and Reassemble3. Disassembly and Reassemble
4. Troubleshooting4. Troubleshooting
5. Exploded View & Part List5. Exploded View & Part List
6. Wiring Diagram6. Wiring Diagram
7. Schematic Diagram7. Schematic Diagram

ContentsContents
1. P1. P
recautions recautions
..........................................................................................................................
..................................................................................................
1-11-1
1-1. Safety Precautions .................................................1-1. Safety Precautions .................................................
................................................................................................................
1-11-1
1-2. 1-2.
Servicing Precautions Servicing Precautions
......................................................................................................................................
....................................................................
1-21-2
1-3. Static Electricity Precautions .......................................................1-3. Static Electricity Precautions .......................................................
......................................................................
1-21-2
1-4. Installation Precautions ................................................................1-4. Installation Precautions ................................................................
....................................................................
1-31-3
2. Product specifcations2. Product specifcations
............................................................................................................................
............................................................
2-12-1
2-1. Feature & Specifcations2-1. Feature & Specifcations
..............................................................................
....................................................................................................................
2-12-1
2-2. Spec 2-2. Spec
Comparison to the Comparison to the
Old Models Old Models
................................................................................................................................
............................
2-22-2
2-3. Accessories .........................................................................2-3. Accessories .........................................................................
......................................................................................
2-32-3
2-4. Accessories (Sold separately) .........................................2-4. Accessories (Sold separately) .........................................
..............................................................................................
2-32-3
3. Disassembly and Assembly 3. Disassembly and Assembly
..............................................................................................................................
........................................
3-13-1
3-1. 3-1.
SIMPLE STAND Disassembly SIMPLE STAND Disassembly
..................................................................................................................................
..............................................
3-13-1
4. Troubleshootin4. Troubleshootin
g ....................................................g ....................................................
....................................................................................................
4-14-1
4-1. 4-1.
TroublTroubl
eshooting ..........................................eshooting ..........................................
......................................................................................................................
..................
4-14-1
4-2. When the 4-2. When the
Power Does Not Turn On Power Does Not Turn On
..................................................................................................................................
............................
4-24-2
4-3. When 4-3. When
the screen is the screen is
blank (Analog) blank (Analog)
..........................................................................................................................................
........................
4-44-4
4-4. When 4-4. When
a blank a blank
screen is displayed (Digital) screen is displayed (Digital)
......................................................................................................................................
....
4-74-7
4-5. Error Examples and Actions ........................................................4-5. Error Examples and Actions ........................................................
..................................................................
4-104-10
4-6. 4-6.
Adjustment ...........................Adjustment ...........................
......................................................................................................................
.............................. ..............................
4-14-1
11
5. Exploded View & Part List 5. Exploded View & Part List
....................................................................................................................................
........................................
5-15-1
5-1. Exploded View-T200 / T200(G) ..................................................5-1. Exploded View-T200 / T200(G) ..................................................
........................................................................
5-15-1
5-2. Parts List-T200 / T200(G)5-2. Parts List-T200 / T200(G)
..........................................................................
....................................................................................................................
5-35-3
5-3. Exploded View-T220 / T220(G) ..................................................5-3. Exploded View-T220 / T220(G) ..................................................
........................................................................
5-45-4
5-4. Parts List-T220 / T220(G)5-4. Parts List-T220 / T220(G)
..........................................................................
....................................................................................................................
5-65-6
6. Wiring Diagram 6. Wiring Diagram
..................................................................................................................................
..............................................................................
6-16-1
6-1. Wiring Diagram - Main Board ..................................................................6-1. Wiring Diagram - Main Board ..................................................................
..............................................
6-16-1
6-2. Wiring 6-2. Wiring
Diagram - IP Diagram - IP
Board Board
................................................................................................................................................
............................................
6-26-2
6-3. Connector Functions .....................................................................6-3. Connector Functions .....................................................................
..................................................................
6-36-3
6-4. Cables ...................................................................................6-4. Cables ...................................................................................
..................................................................................
6-36-3
7. Schematic Diagram ..7. Schematic Diagram ..
....................................................................................................................................
..........................................................
7-17-1
7-1. 7-1.
Circuit Descriptions Circuit Descriptions
........................................................................................................................
..........................................................................................
7-17-1
7-2. Schematic Diagrams (Scaler Part) ........................................................7-2. Schematic Diagrams (Scaler Part) ........................................................
..................................................
7-27-2
7-3. Schematic Diagrams (Power Flowchart) ......................7-3. Schematic Diagrams (Power Flowchart) ......................
....................................................................................................
7-27-2
7-4. Schematic Diagrams (IP Board) .........................7-4. Schematic Diagrams (IP Board) .........................
......................................................................................................................
..
7-37-3
7-5. Schematic D7-5. Schematic D
iagrams iagrams
(Main PBA) (Main PBA)
..........................................................................................................................................
..........................
7-7-
55

GSPN (Global Service Partner Network)GSPN (Global Service Partner Network)
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This Service Manual is a property of This Service Manual is a property of
Samsung Electronics Co.,Ltd.Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicableAny unauthorized use of Manual can be punished under applicable
International and/or domestic law.International and/or domestic law.
© 2008 Samsung Electron© 2008 Samsung Electron
ics Co.,Ltd.ics Co.,Ltd.
All rights reserved.All rights reserved.
Printed in KoreaPrinted in Korea
P/N: BN82-00357A-01P/N: BN82-00357A-01

1-11-1
1. Precautions1. Precautions
1. Precautions1. Precautions
1-1. Safety Precautions1-1. Safety Precautions
Follow these safety, servFollow these safety, serv
icing and ESD precautions to prevent damage and icing and ESD precautions to prevent damage and
to protect against potential hazards such asto protect against potential hazards such as
electrical shock.electrical shock.
1-1-1. Warnings1-1-1. Warnings
For continued safety, do not attempt to modify the circuit board.For continued safety, do not attempt to modify the circuit board.
Disconnect the AC power and DC Disconnect the AC power and DC
power jack before servicing.power jack before servicing.
1-1-2. Servicing the LCD Monitor1-1-2. Servicing the LCD Monitor
When servicing the LCD When servicing the LCD
Monitor, DisconnecMonitor, Disconnec
t the AC line t the AC line
cord from the AC outlet.cord from the AC outlet.
It is essential that service technicians have an accurate voltage meter It is essential that service technicians have an accurate voltage meter
available at all times. Check the calibration available at all times. Check the calibration
ofof
this meter this meter
periodicallyperiodically
..
1-1-3. Fire and Shock Hazard1-1-3. Fire and Shock Hazard
Before returning the monitor to Before returning the monitor to
the user, perform the following safety checks:the user, perform the following safety checks:
Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between theInspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the
chassis and other metal parts in the chassis and other metal parts in the
monitor.monitor.
Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment andInspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and
compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.
Leakage Current Hot Check (Figure 1-1):Leakage Current Hot Check (Figure 1-1):
WARNINGWARNING
: Do not use an isolation transformer during this test.: Do not use an isolation transformer during this test.
Use a leakage current tester or a Use a leakage current tester or a
metering system that complies with Ammetering system that complies with Am
erican National Standards Institute (ANSIerican National Standards Institute (ANSI
C101.1, Leakage Current for Appliances), and C101.1, Leakage Current for Appliances), and
Underwriters Laboratories (UL Publication UL1410, 59.7).Underwriters Laboratories (UL Publication UL1410, 59.7).
With the unit completely reassembled, plug the AC line cord directly into With the unit completely reassembled, plug the AC line cord directly into
a 120V AC outlet. With the unit’s AC switcha 120V AC outlet. With the unit’s AC switch
rst in the ON position and rst in the ON position and
then OFFthen OFF
, measure the current between a known earth , measure the current between a known earth
ground (metal water pipe, conduit,ground (metal water pipe, conduit,
etc.) and all exposed metal parts, including: etc.) and all exposed metal parts, including:
metal cabinets, screwheads and control shafts.metal cabinets, screwheads and control shafts.
The current measured should not exceed 0.5 milliamp.The current measured should not exceed 0.5 milliamp.
Reverse the power-plug prongs in the AC outlet and repeat Reverse the power-plug prongs in the AC outlet and repeat
the test.the test.
1-1-4. Product Safety Notices1-1-4. Product Safety Notices
Some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visualSome electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual
inspection. The protection they give may not be inspection. The protection they give may not be
obtained by replacing them with components rated for obtained by replacing them with components rated for
higher voltage,higher voltage,
wattage, etc. Parts that have special safety characteristics are identied bywattage, etc. Parts that have special safety characteristics are identied by
on schematics and on schematics and
parts lists. A substituteparts lists. A substitute
replacement that does not have the replacement that does not have the
same safety characteristics as the recommended replacemsame safety characteristics as the recommended replacem
ent part might createent part might create
shock, re and/or other hazards. Product safety is under review continuously and new shock, re and/or other hazards. Product safety is under review continuously and new
instructions are issued wheneverinstructions are issued whenever
appropriate.appropriate.
1.1.
2.2.
1.1.
2.2.
1.1.
2.2.
3.3.
4.4.
DEVICEDEVICE
UNDERUNDER
TESTTEST
(READING SHOULD)(READING SHOULD)
NOT BE ABOVE 0.5mANOT BE ABOVE 0.5mA
LEAKAGELEAKAGE
CURRENTCURRENT
TESTERTESTER
TEST ALLTEST ALL
EXPOSED METALEXPOSED METAL
SURFACESSURFACES
2-WIRE CORD2-WIRE CORD
*ALSO TEST WITH*ALSO TEST WITH
PLUG REVERSEDPLUG REVERSED
(USING AC ADAPTER(USING AC ADAPTER
PLUG AS REQUIRED)PLUG AS REQUIRED)
EARTHEARTH
GROUNDGROUND
Figure 1-1. Figure 1-1.
Leakage Current Test CircuitLeakage Current Test Circuit

1-21-2
1. Precautions1. Precautions
1-2. Servicing Precautions1-2. Servicing Precautions
WARNING:WARNING:
An elecAn elec
trolytic trolytic
capacitor capacitor
installed with installed with
the wrthe wr
ong polarity ong polarity
might exmight ex
plode.plode.
Caution:Caution:
Before servicing units covered by this service manual, read and follow Before servicing units covered by this service manual, read and follow
the Safety Precautions section ofthe Safety Precautions section of
this manual.this manual.
Note:Note:
If unforeseen circumstances create conict between the following servicing precautions and any of theIf unforeseen circumstances create conict between the following servicing precautions and any of the
safety precautions, always follow the safety precautions, always follow the
safety precautions.safety precautions.
1-2-1 General Servicing Precautions1-2-1 General Servicing Precautions
Always unplug the unit’s Always unplug the unit’s
AC power cord from thAC power cord from th
e AC powe AC pow
er source and disconnecer source and disconnec
t the DC Power Jack t the DC Power Jack
beforebefore
attempting to:attempting to:
(a) remove or reinstall any component or assembly, (b) disconnect PCB plugs or connectors, (c) connect a test(a) remove or reinstall any component or assembly, (b) disconnect PCB plugs or connectors, (c) connect a test
component in parallel component in parallel
with an electrolytic capacitor.with an electrolytic capacitor.
Some components are raised above the printed circuit board Some components are raised above the printed circuit board
for safetyfor safety
. An insulation tube or tape i. An insulation tube or tape i
s sometimess sometimes
used. The internal wiring is sometimes clamped to prevent contact with thermally hot used. The internal wiring is sometimes clamped to prevent contact with thermally hot
components. Reinstall all suchcomponents. Reinstall all such
elements to their original position.elements to their original position.
After servicing, alwayAfter servicing, alway
s check that the scs check that the sc
rews, components rews, components
and wiring have been correctand wiring have been correct
ly reinstalled. Make sure thly reinstalled. Make sure th
atat
the area around the serviced part has not been damaged.the area around the serviced part has not been damaged.
Check the insulation between the blades of Check the insulation between the blades of
the AC plug and accessible conductive parts (examples: metal panels,the AC plug and accessible conductive parts (examples: metal panels,
input terminals and earphone jacks).input terminals and earphone jacks).
Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON.Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON.
Connect an insulation resistance meter (500 V) to Connect an insulation resistance meter (500 V) to
theblades of the AC plug.theblades of the AC plug.
The insulation resistance between each blade of The insulation resistance between each blade of
the AC plug and accessible conductive parts (see above) should bethe AC plug and accessible conductive parts (see above) should be
greater than 1 megohm.greater than 1 megohm.
Always connect a Always connect a
test instrument’s grtest instrument’s gr
ound lead to the instrument chassound lead to the instrument chass
is ground before connecting the posis ground before connecting the pos
itive lead;itive lead;
always remove the instrument’s ground lead last.always remove the instrument’s ground lead last.
1-3. Static Electricity Precautions1-3. Static Electricity Precautions
Some semiconductor (solid state) devices can be Some semiconductor (solid state) devices can be
easily damaged by static easily damaged by static
electricityelectricity
. Such components are . Such components are
commonlycommonly
called Electrostatically Sensitive Devices (ESD). Examples of typical ESD called Electrostatically Sensitive Devices (ESD). Examples of typical ESD
are integrated circuits and are integrated circuits and
some eld-effectsome eld-effect
transistors. The following techniques will transistors. The following techniques will
reduce the incidence of reduce the incidence of
component damage caused by static component damage caused by static
electricityelectricity
..
Immediately before handling any Immediately before handling any
semiconductor components or assemblies, drain the electrostatic charge semiconductor components or assemblies, drain the electrostatic charge
from yourfrom your
body by touching a body by touching a
known earth ground. Alternativelyknown earth ground. Alternatively
, wear a , wear a
discharging wrist-strap device. Tdischarging wrist-strap device. T
o avoid a o avoid a
shock hazard,shock hazard,
be sure to remove the wrist strap be sure to remove the wrist strap
before applying power to the before applying power to the
monitor.monitor.
After removing an ESDAfter removing an ESD
-equipped assembly-equipped assembly
, place it on a conductive surfa, place it on a conductive surfa
ce such as aluminum ce such as aluminum
foil to preventfoil to prevent
accumulation of an electrostatic charge.accumulation of an electrostatic charge.
Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.
Use only a grounded-tip soldering iron Use only a grounded-tip soldering iron
to solder or desolder ESDs.to solder or desolder ESDs.
Use only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generateUse only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generate
electrical charges sufcient to damage electrical charges sufcient to damage
ESDs.ESDs.
Do not remove a replacement ESD from its protective package until you Do not remove a replacement ESD from its protective package until you
are ready to install it. are ready to install it.
Most replacement ESDsMost replacement ESDs
are packaged with leads that are are packaged with leads that are
electrically shorted together by conductive foam, aluminum foil or other electrically shorted together by conductive foam, aluminum foil or other
conductiveconductive
materials.materials.
Immediately before removing the protective material from the leads of Immediately before removing the protective material from the leads of
a replacement ESD, touch the protectivea replacement ESD, touch the protective
material to the chassis or circuit assembly into which the material to the chassis or circuit assembly into which the
device will be installed.device will be installed.
Caution:Caution:
Be sure no Be sure no
power is applied to the power is applied to the
chassis or circuit and observe all other safety precautions.chassis or circuit and observe all other safety precautions.
Minimize body motions when handling Minimize body motions when handling
unpackaged replacement ESDs. Motions such as brushing unpackaged replacement ESDs. Motions such as brushing
clothes together,clothes together,
or lifting your foot or lifting your foot
from a carpeted oor can generate enough from a carpeted oor can generate enough
static electricity to damage an ESD.static electricity to damage an ESD.
1.1.
2.2.
3.3.
4.4.
5.5.
6.6.
1.1.
2.2.
3.3.
4.4.
5.5.
6.6.
7.7.
8.8.

1-3
1. Precautions
1-4. Installation Precautions
For safety reasons, more than two people are
required for carrying the product.
Keep the power cord away from any heat
emitting devices, as a melted covering may cause re or electric shock.
Do not place the product
in areas with poor ventilation
such as a bookshelf or closet. The increased internal
temperature may cause re.
Bend the external antenna cable
when connecting it to the
product. This is a measure to protect it
from being exposed
to moisture. Otherwise, it may cause a re or
electric shock.
Make sure to turn the power
off and unplug the power
cord from the outlet before
repositioning the product. Also check
the antenna cable or
the external connectors if they are fully
unplugged. Damage to the cord may cause re or
electric
shock.
Keep the antenna far
away from any high-voltage cables and install it
rmly
. Contact with the highvoltage
cable or the
antenna falling over may cause re or
electric shock.
When installing the product, leave enough
space (10cm) between the product and the wall
for ventilation purposes.
A rise
in temperature within the product m
ay cause re.
1.
2.
3.
4.
5.
6.
7.

1-4
1. Precautions
Memo

2-1
2. Product specications
2. Product specifcations
2-1. Feature & Specifcations
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T200 / T200G / T200N / T200GN
Feature
Panel Specications: 300cd/m2, 2ms, CR 1000:1(DC), 170/160(CR>10)
DPMS : <1W
Magic Bright3, Magic Tune, Windows Vista authentication
DC 20,000: 1 applied
Supports xed vertical and horizontal ratios
Supports camera effect mode: Black and white/Sepia/Aqua/Green
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Specifcations
Item
Description
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LCD Panel
TFT-
LCD panel, RGB
vertical stripe, normally white
transmissive,
22
”
wide Viewable 0.258(H) mm x
0.258(V) mm pixel pitch
20
”
wide Viewable 0.258(H) mm x
0.258(V) mm pixel pitch
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Vertical: 56 Hz ~ 75 Hz(WSXGA+ : 60Hz)
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Vertical: 1050 Pixels
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Level: TTL level
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Active Display
(Horizontal/Vertical)
473.76(H)
x
296.1(V)
AC power voltage & Frequency
AC 11
0V~130V
, 60Hz &
AC, 200V~240V 50Hz
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m
4
8
6
x
2
1
5
x
4
2
2
m
m
W
e
i
g
h
t
(
S
e
t
/
P
a
c
k
a
g
e
)
S
e
t
:
5
.
8
k
g
,
P
a
c
k
a
g
e
:
7
.
5
K
g
(With Stand)
Set : 5.4kg, Package : 7.0Kg
(With Stand)
Env
iro
nme
nta
l C
ons
ide
rat
ion
s
Ope
rat
ing
T
emp
era
tur
e:
10˚
C
~ 5
0˚C
(50
˚F
~
122
˚F)
Operating Humidity : 10% ~ 90%
Operatin
g T
emperat
ure:
-20˚C ~
45˚C(-4˚F ~ 1
13˚F)
Operating Humidity: 5% ~ 90%
Note: Designs and specications are subject to change without
prior notice.

4-1
4. Troubleshooting
4. Troubleshooting
4-1. Troubleshooting
Set custom mode as follows before beginning a repair.
• Resolution: 1680 x 1050
• H-frequency: 60 kHz
• V-frequency: 65 Hz
If the screen is blank, check whether the power cord is connected correctly.
The circuits to check:
• When the raster does not appear: The Function PCB, Main PCB, I/P PBA
• When 5V is generated but a blank screen is displayed: Main PCB
• When 5V is not generated: I/P PBA
“Press the MENU button and hold down the, “
(Enter, Source)” button for more than ve (5) seconds to return the monitor to
factory mode.
1.
2.
3.
4.

4-2
4. Troubleshooting
4-2. When the Power Does Not Turn On
Symptom
- When turning on the Power button after connecting the power cable, the LED at the front of the
monitor does not operate.
Major checkpoints
- When turning on the Power button after connecting the power cable, the LED at the front of the
monitor does not operate.
- Check the IP board power fuse and the IP board output power.
- Check the connections for the IP board and the Main board inside the monitor.
- Check the Main board power part and also check whether there is any abnormal output at any of
the other output terminals.
CN 600
IC 601
IC 602
Diagnostics
Y
es
Check the connection status for
the function
assy
.
Y
es
Replace the IP board.
No
Is DC 5V measured at pins 5, 6 of the
CN600 connector when pins 3, 4 are
0V?
IIs DC 3.3V measured at pin 3 of IC601
when pin 1 is DC 5V?
Check the circuits related to
IC601.
No
Y
es
Check the circuits related to
IC602.
No
Is DC 1.8V measured at pin 2 of IC602
when pin 3 is DC 5V?
Y
es
Check and replace the IP board.
Ca
ut
io
n
Ma
ke
su
re t
o di
sc
on
ne
ct
th
e po
we
r be
fo
re w
or
ki
ng
on t
he I
P b
oa
rd
.

4-3
4. Troubleshooting
4-2-1. Circuit diagrams when the power does not turn on

4-6
4. Troubleshooting
4-3-2. Waveforms when no screen is displayed (Analog)
①
④
③

4-7
4. Troubleshooting
4-4. When a blank screen is displayed (Digital)
Symptom
- Even though the LED power turns on, the screen is blank when connecting the DVI cable.
Major checkpoints
- Even though the LED power turns on, the screen is blank when connecting the DVI cable.
- Check the DVI cable connections.
- Check whether the LVDS cable is connected correctly to the panel.
- Check whether the lamp connector of the panel is connected correctly to the IP board.
CN 400
X 201
IC 200
R111, R114, R118
Diagnostics
Y
es
Check the signal cables and
their connections.
Y
es
Check and replace the circuits
related to X201.
No
Is X201 oscillating correctly?
Do
the
inputs
appear
at
R100,
R101, R103, and R107?
Check the R100, R101, R103,
and R107 input terminals.
No
Y
es
Do output signals appear at pins 8 to 30
of CN400?
Check the circuits related to
CN400
No
Y
es
Can DC 5V be measured at pins 1, 2,
and 3 of CN400?
Check the Panel EN signal
and the BL_EN signal.
No
Y
es
Check and replace the panel.
Ca
ut
io
n
Ma
ke
su
re t
o di
sc
on
ne
ct
th
e po
we
r be
fo
re w
or
ki
ng
on t
he I
P b
oa
rd
.
①
②

4-8
4. Troubleshooting
4-4-1. Circuit diagrams when a blank screen is displayed (Digital)

5-1
5. Exploded View & Part List
5. Exploded View & Part List
5-1. LS22TWHSUV/ZC - Exploded View (T220)
T
0
0
0
3
M
0
2
1
5
M
0
0
0
6
M
0
0
1
3
T
0
3
1
2
S
T
D
M
0
0
2
7
B
N
6
3
-
0
4
3
9
4
A
B
N
6
1
-
0
2
4
2
6
A

5-2
5. Exploded View & Part List
5-1-1. LS22TWHSUV/ZC - Parts List
(T220)
L
o
c
a
t
i
o
n
N
o
.
C
o
d
e
N
o
.
Description & Specifcation
Q
’
t
y
S
A
/
S
N
A
R
e
m
a
r
k
M
0
0
0
6
B
N
9
6
-
0
7
3
4
6
A
A
S
S
Y
S
H
I
E
L
D
P
-
C
O
V
E
R
;
L
S
2
2
T
W
,
S
E
C
C
T
0
.
8
1
S
.
N
.
A
M
0
0
1
3
BN
9
6
-
0
7
3
4
2
A
AS
S
Y
C
O
V
ER
P
-
R
E
A
R
;
L
S2
2
T
W
,
PM
M
A
A
B
S,
H
B
,
B
K2
1
S
.
A
M
0
0
2
7
B
N
9
6
-
0
7
3
4
5
B
A
SS
Y
S
T
A
N
D
P
-
B
AS
E
;
L
S
2
2
T
W
,
A
B
S
H
B
P
M
M
A
,
R
D
0
1
S
.
A
M
0
2
1
5
B
N
0
7
-
0
0
4
8
7
A
L
C
D
-
P
A
N
E
L
;
L
T
M
2
2
0
M
1
-
L
0
1
-
2
1
S
.
A
S
T
D
B
N
9
6
-
0
7
3
4
7
C
A
S
S
Y
S
T
A
N
D
P
-
B
O
D
Y
;
L
S
2
2
T
W
,
P
M
M
A
A
B
S
H
B
,
S
M
5
1
S
.
A
T
0
0
0
3
B
N
9
6
-0
7
3
4
3
U
A
S
S
Y
C
O
V
E
R
P-
F
R
O
N
T
;
L
S
2
2
T
W
,
P
M
M
A+
A
BS
,
T
O
C
,
R
1
S
.
A
T
0
3
1
2
BN
9
6
-
0
7
9
2
9
A
A
S
S
Y
C
O
VE
R
P
-R
E
A
R
S
U
B;
L
S2
2
T
W
,
PM
M
A
A
BS
,
H
B
1
S
.
A
B
N
6
1
-
0
2
4
2
6
A
B
R
A
C
K
E
T
-
S
H
I
E
L
D
;
S
/
M
2
0
3
B
,
S
P
T
E
,
T
0
.
3
1
S
.
N
.
A
B
N
6
3
-
0
4
3
9
4
A
S
H
I
E
L
D
-
L
A
M
P
;
T
2
2
W
,
S
P
T
E
,
T
0
.
3
1
S
.
N
.
A

5-3
5. Exploded View & Part List
5-2. LS22TWHSUV/ZC - Parts List
Service Bom
(
SA
: SE
RVICE AV
AILABLE,
SNA
: SE
RVICE NOT AV
AILABLE)
L
e
v
e
l
L
o
c
a
t
i
o
n
N
o
.
C
o
d
e
N
o
.
Description
&
Specifcation
Q’
ty
SA
/S
N
A
Re
m
ar
k
LS22TW
HSUV/Z
C
T220,W
SN1/S2
2T0-L
TW,
22,LC
D-MO,
CANAD
A
0
.
1
M
0
0
0
1
B
N
9
0
-
0
1
5
9
0
M
ASSY
COVER
FRONT;LS22TW,USA_
POP,T220,ROS
1
S
.
N
.
A
.
.
2
T
0
0
0
3
B
N
9
6
-
0
7
3
4
3
U
ASSY
COVER
P-FRONT
;LS22TW,PMMA+ABS,
TOC,R
1
S
.
A
.
.
.
3
M
0
0
8
1
6
0
0
3
-
0
0
0
2
8
2
S
C
R
E
W
-
T
A
P
T
I
T
E
;
B
H
,
+
,
-
,
B
,
M
3
,
L
8
,
Z
P
C
(
B
L
K
)
,
S
W
2
S
.
N
.
A
.
.
.
3
M
0
9
6
0
B
N
6
1
-
0
3
9
0
2
A
H
O
L
D
E
R
-
B
O
S
S
;
T
2
2
0
,
P
M
M
A
+
A
B
S
,
H
B
,
W
H
1
5
1
S
.
N
.
A
.
.
.
3
C
C
M
1
B
N
6
3
-
0
2
1
8
3
D
C
O
V
E
R
-
S
H
E
E
T
;
R
h
c
m
,
P
E
V
i
n
y
l
,
T
0
.
0
5
,
6
8
0
m
m
,
2
0
1
S
.
N
.
A
.
.
.
3
M
0
1
1
2
B
N
6
3
-
0
4
3
8
6
A
C
O
V
E
R
-
F
R
O
N
T
;
T
2
2
W
,
P
M
M
A
+
A
B
S
-
P
M
M
A
,
T
O
C
1
S
.
N
.
A
.
.
.
3
B
N
6
4
-
0
0
8
4
2
A
 KNOB-GUIDE;T220,PMMA+ABS,HB,BK23,H/
GLOSS
1
S
.
N
.
A
.
.
.
3
T
0
0
2
2
B
N
6
4
-
0
0
8
4
4
A
KNOB
CONTROL;T220,PMMA+ABS,HB,BK23,H/
GLO
1
S
.
N
.
A
.
.
.
3
M
0
1
0
2
B
N
9
6
-
0
7
5
6
9
A
A
S
S
Y
B
L
U
P
;
T
2
2
0
D
,
M
B
-
M
0
7
1
6
,
W
H
I
T
E
,
B
L
U
1
S
.
A
.
.
.
.
4
B
N
9
4
-
0
1
8
9
3
J
A
S
S
Y
P
C
B
M
A
I
N
-
B
N
9
6
-
0
7
5
6
9
A
;
T
,
A
S
S
Y
B
L
U
P
1
S
.
N
.
A
.
.
.
.
.
5
B
N
8
1
-
0
1
7
0
9
A A /
S
-
M
O
L
D
F
R
A
M
E
;
S
R
-
3
1
0
8
F
,
4
6
.
6
X
1
0
.
5
2
4
X
,
B
N
9
1
S
.
N
.
A
.
.
.
.
.
5
B
N
8
1
-
0
1
7
1
0
A
A
/
S
-
G
U
I
D
E
P
A
N
E
L
-
L
;
P
C
,
4
0
.
6
X
7
.
0
8
X
3
.
4
,
B
N
9
6
-
1
S
.
N
.
A
.
.
.
.
.
5
B
N
8
1
-
0
1
7
1
1
A
A
/
S
-
D
I
F
F
U
S
E
R
S
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E
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;
G
2
5
,
4
2
.
6
X
1
0
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N
9
6
-
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S
.
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.
A
.
.
.
.
.
5
B
N
8
1
-
0
1
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1
5
A
A
/
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-
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A
R
N
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S
S
;
P
S
T
0
7
1
6
-
0
1
,
B
N
9
6
-
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7
5
6
9
A
1
S
.
N
.
A
.
.
.
.
.
5
B
N
8
1
-
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1
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1
6
A
A
/
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-
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H
A
D
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T
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E
;
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1
3
5
0
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9
8
.
9
X
1
4
.
8
2
,
-
,
-
,
-
,
1
S
.
N
.
A
.
.
.
.
.
5
T
0
1
7
4
B
N
9
7
-
0
2
2
9
7
N
A
S
S
Y
S
M
D
;
T
,
W
/
W
1
S
.
N
.
A
.
.
.
.
.
.
6
B
N
8
1
-
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/
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;
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.
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,
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.
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8
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7
.
0
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,
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N
9
6
-
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5
6
9
A
1
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.
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.
A
.
.
.
.
.
.
6
B
N
8
1
-
0
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3
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;
M
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2
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3
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,
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6
-
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6
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.
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.
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.
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.
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6
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N
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1
4
A
A
/
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I
S
T
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R
;
R
C
1
2
0
6
J
R
-
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3
3
R
,
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N
9
6
-
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5
6
9
A
1
S
.
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.
A
.
.
.
3
C
I
S
1
B
N
7
4
-
0
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2
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T
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P
E
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L
A
M
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T
;
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i
l
a
m
e
n
t
t
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e
,
c
l
e
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r
,
#
8
9
1
5
,
0
.
0
6
S
.
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.
A
.
.
.
3
M
0
1
4
5
B
N
9
6
-
0
7
8
9
0
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A
S
S
Y
B
O
A
R
D
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-
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U
N
C
T
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;
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,
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n
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t
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o
n
A
s
s
y
,
W
i
1
S
.
A
.
.
.
.
4
M
2
8
9
3
B
N
3
9
-
0
1
0
0
7
C
L
E
A
D
C
O
N
N
E
C
T
O
R
;
T
,
U
L
1
0
6
1
#
2
8
,
5
t
o
5
p
i
n
,
1
5
0
1
S
.
A
.
.
.
.
4
B
N
9
4
-
0
1
8
9
3
A
A
S
S
Y
P
C
B
M
A
I
N
-
P
O
W
E
R
P
C
B
;
T
1
S
.
N
.
A
.
.
.
.
.
5
C
N
3
3
0
3
7
1
1
-
0
0
2
1
6
2
HEADER-BOARD
TO
CABLE;BOX,2P,1R,1.25mm,S
1
S
.
A
.
.
.
.
.
5
C
N
9
0
6
3
7
1
1
-
0
0
6
4
7
1
 CONNECTOR-HEADER;BOX,5P,1R,1mm,SMD-
A,AU,
1
S
.
N
.
A
.
.
.
.
.
5
B
N
7
4
-
0
0
0
1
4
A
TAPE-FUNCTIO
N
TAPE;DOUBLE
FACE
TAPE,Acry
1
S
.
N
.
A
.
.
.
.
.
5
T
0
1
7
4
B
N
9
7
-
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7
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6
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 IC-SENSOR;MCS-5000,UQFN,24P,4x4mm,PLA
STI
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6
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TO
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1
S
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.
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6
P
C
B
B
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1
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1
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C
1
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6
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.
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C
2
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6
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0
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5
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4
B
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9
4
-
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8
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3
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S
S
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B
M
A
I
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A

6-4
6. Wiring Diagram
Memo

7-1
7. Schematic Diagram
7. Schematic Diagram
7-1. Circuit Descriptions
L
o
c
a
t
i
o
n
F
u
n
c
t
i
o
n
R
e
m
a
r
k
Scaler
IC200
Besides the ADC, LVD
S, and scaling
part, an
MCU is embedded as well. All
of
them are integrated into one chip.
SE758MRH
Flash
Memory
IC201
Stores the MCU program embedded in the scaler. It is of a ash type and
rewritable.
MX25LV512
I
C
2
0
3
S
t
o
r
e
s
t
h
e
O
S
D
a
n
d
v
a
r
i
o
u
s
t
i
m
i
n
g
v
a
l
u
e
s
.
2
4
C
0
8
I
C
2
0
2
T
h
e
m
e
m
o
r
y
t
o
w
h
i
c
h
D
I
G
I
T
A
L
D
D
C
d
a
t
a
i
s
i
n
p
u
t
2
4
C
0
2
Regulator
An IC that receives D
C voltage inputs. It is used in c
ircuits that stabilize the DC
voltage.
NCP117DT18T5G
APL1
117-33V
C

7-2
7. Schematic Diagram
7-2. Schematic Diagrams (Scaler Part)
7-3. Schematic Diagrams (Power Flowchart)