5-2. Parts List .....................................................................................................................................................5-3
5-4. Parts List ...................................................................................................................................................5-22
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This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as
electrical shock.
1-1-1. Warnings
For continued safety, do not attempt to modify the circuit board.
1.
Disconnect the AC power and DC power jack before servicing.
2.
1-1-2. Servicing the LCD Monitor
When servicing the LCD Monitor, Disconnect the AC line cord from the AC outlet.
1.
It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of
2.
this meter periodically.
1-1-3. Fire and Shock Hazard
Before returning the monitor to 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 the
1.
chassis and other metal parts in the monitor.
Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and
2.
compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.
Leakage Current Hot Check (Figure 1-1):
3.
WARNING : Do not use an isolation transformer during this test.
Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI
C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7).
(READING SHOULD)
NOT BE ABOVE 0.5mA
DEVICE
UNDER
TEST
TEST ALL
EXPOSED METAL
SURFACES
2-WIRE CORD
*ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED)
With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch
4.
LEAKAGE
CURRENT
TESTER
EARTH
GROUND
Figure 1-1. Leakage Current Test Circuit
rst in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit,
etc.) and all exposed metal parts, including: metal cabinets, screwheads and control shafts.
The current measured should not exceed 0.5 milliamp.
Reverse the power-plug prongs in the AC outlet and repeat the test.
1-1-4. Product Safety Notices
Some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual
inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage,
wattage, etc. Parts that have special safety characteristics are identied by on schematics and parts lists. A substitute
replacement that does not have the same safety characteristics as the recommended replacement part might create
shock, re and/or other hazards. Product safety is under review continuously and new instructions are issued whenever
appropriate.
1-1
Page 5
1-2
1. Precautions
1-2. Servicing Precautions
WARNING: An electrolytic capacitor installed with the wrong polarity might explode.
Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of
this manual.
Note: If unforeseen circumstances create conict between the following servicing precautions and any of the
safety precautions, always follow the safety precautions.
1-2-1 General Servicing Precautions
Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack before
1.
attempting to:
(a) remove or reinstall any component or assembly, (b) disconnect PCB plugs or connectors, (c) connect a test
component in parallel with an electrolytic capacitor.
Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes
2.
used. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such
elements to their original position.
After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that
3.
the area around the serviced part has not been damaged.
Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels,
4.
input terminals and earphone jacks).
Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON.
5.
Connect an insulation resistance meter (500 V) to theblades of the AC plug.
The insulation resistance between each blade of the AC plug and accessible conductive parts (see above) should be
greater than 1 megohm.
Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead;
6.
always remove the instrument’s ground lead last.
1-3. Static Electricity Precautions
Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly
called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some eld-effect
transistors. The following techniques will reduce the incidence of component damage caused by static electricity.
Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your
1.
body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device. To avoid a shock hazard,
be sure to remove the wrist strap before applying power to the monitor.
After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent
2.
accumulation of an electrostatic charge.
Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.
3.
Use only a grounded-tip soldering iron to solder or desolder ESDs.
4.
Use only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generate
5.
electrical charges sufcient to damage ESDs.
Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs
6.
are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive
materials.
Immediately before removing the protective material from the leads of a replacement ESD, touch the protective
7.
material to the chassis or circuit assembly into which the device will be installed.
Caution: Be sure no power is applied to the chassis or circuit and observe all other safety precautions.
Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together,
8.
or lifting your foot from a carpeted oor can generate enough static electricity to damage an ESD.
Page 6
1. Precautions
1-4. Installation Precautions
For safety reasons, more than two people are required for carrying the product.
1.
Keep the power cord away from any heat emitting devices, as a melted covering may cause re or electric shock.
2.
Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal
3.
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
4.
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
5.
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
6.
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.
7.
A rise in temperature within the product may cause re.
1-3
Page 7
1. Precautions
Memo
1-4
Page 8
2. Product specications
2-1. Feature & Specications
ModelT220M / T200M
Feature
�
Supreme Digital Interface & Networking
- With a built-in with no particular set-top box and provides simple access with a single remote control.
-MAX Internal speaker Out : Right : 3W / Left : 3W
-BASS Control Range : -8 dB ~ + 8dB
-TREBLE Control Range : -8 dB ~ +8 dB
-Headphone Out : 10 mW MAX
-Output Frequency : RF : 80 Hz ~ 15 kHz
Description
T220MT200M
A/V : 80 Hz ~ 20 kHz
Page 10
2-2. Spec Comparison to the Old Models
ModelT220M / T200MCurie (225MD)
Design
Screen Size20” / 22”22”
2. Product specications
Frequency
Horizontal
Vertical
Display Color
PC Resolution
Maximum mode
Input Signal
Sync Signal
Video Signal
Power Consumption
Normal
Power Saving
WSXGA+, 1680 x 1050 @ 60 Hz1680 x 1050
H/V Separate, TTL, P. or N.
30 ~ 81 kHz
56 ~ 75 Hz
16,777,216 colors
0.7 Vp-p @ 75ohm
22” 54W < 2W
20” 50W < 2W
30 ~ 81 kHz
56 ~ 75 Hz
16,777,216 colors
H/V Separate, TTL, P. or N.
0.7 Vp-p @ 75ohm
58W < 2W
*Color Effect
- Grey scale: Images are displayed in a grey tone on the screen.
- Green: Images are displayed in a green tone on the screen.
- Aqua: Images are displayed in a blue tone on the screen.
- Sepia: Images are displayed in a brown tone on the screen.
Image Size : : If the resolution is not wide resolution, this option allows the screen size to be selected as normal or wide.
2-3
Page 11
2. Product specications
2-3. Accessories
ProductDescriptionCcde. NoRemark
Remote Control
&
Batteries (AAA x 2)
Power Cord3903-000190
Stand BodyBN96-07347D
Stand BaseBN96-07345A
BN59-00678A
Samsung Electronics
Service center
D-Sub CableBN39-00244G
User’s Guide,
Monitor Driver,
Natural Color Pro Software
Cleaning ClothBN63-01798A
BN96-07540A
2-4
Page 12
3. Disassembly and Assembly
3. Disassembly and Assembly
This section describes the disassembly and reassembly sequences for this monitor.
Warning: As this monitor has parts that are sensitive to static electricity, be careful when handling them.
3-1. Disassembly
Caution: 1. Turn the monitor off before beginning the disassembly process.
2. When disassembling the monitor, do not use any metal tools except for the provided jig.
3. Remove the signal cable and the power cord before beginning the disassembly.
Description PhotoScrews
1. Place monitor face down on cushioned table.
Remove Stand, then remove 2 marked screws
from the rear cover.
Caution : If you do not tilt the stand and use too
much force to remove it, the connection
pin may break.
2. Remove the cover and the LCD panel using the
provided jig on both grooves at the bottom.
Caution : Remove the cover and the LCD panel
using the provided jig on both grooves
at the bottom.
- Check to see if there is a burnt or damaged cable.
- Check to see if there is a disconnected cable connection or a connection is too loose.
- Check to see if the cables are connected according to the connection diagram.
Check the power input to the Main Board.
2.
Check the following circuits.
3.
• No raster appears: Function PBA, Main PBA, I/P PBA
• 55V develop but no screen: Main PBA
• 5V does not develop: I/P PBA
Check the voltage in and out between the IP↔ Main Board, between the IP↔ Panel, and between the Main LVDS
4.
Boards.
4-1
Page 44
4. Troubleshooting
4-2. No Power
SymptomThough the power swtich on, the LED power off and the screen is blank.-
-
Major
checkpoints
-
-
-
Check Power cable.
Check whether the Lamp connector is connected correctly to the IP.
Check whether the power cable is connected correctly to the MAIN.
Check whether the Function cable is connected correctly to the MAIN.
IC1013
IC1005
Main Board Front
Diagnostics
CautionMake sure to disconnect the power before working on the IP board.
Does Power indicator LED Off ?
Yes
Does proper DC 14.5V appear
at C1002.
Yes
Does proper DC5V appear
at C1004?
Yes
Does proper DC3.3V, 1.2v appear
at 1112, C1052?
Yes
A power is supplied to set?
No
No
No
No
No
Check a connection a
power cable.
Change a Assy PCB Power.
Change a Assy PCB Power.
Check IC1013, IC1005.
Change a main PBA.
Check a other function.(No picture
part) Replace a lcd panel.
4-2
Page 45
4-2-1. Circuit diagrams when the power does not turn on
4. Troubleshooting
4-3
Page 46
4. Troubleshooting
4-3. No Video (Analog PC)
SymptomThough the LED power turns on, the screen is blank when connecting the VGA cable.-
Even though the LED power turns on, the screen is blank when connecting the VGA cable.
-
Check the D-sub cable connections.
Major
checkpoints
-
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.
-
RA5008~
RA5012
IC5002
Main Board Front
Diagnostics
CautionMake sure to disconnect the power before working on the IP board.
Power Indicator is off.
Lamp on, no video.
Yes
Check a PC source and check
the connection of DSUB cable?
Yes
① Does the sigmal appear at
R3020, R3021,R3022?
Yes
Does the digital data appear at the
output of RA5008~RA5012?
Yes
Check a LVDS cable?
Replace a lcd panel?
No
No
No
No
Please, Call to Samsung Co. LTD.
Input a analog PC signal and
connected cable(DPMS).
PC cable. Change a PC
cable. Change a main PCB ass’y.
Check IC5002.
Change a main PBA.
4-4
Page 47
4. Troubleshooting
4-3-1. Circuit diagrams and waveforms (Analog) when no screen is displayed
on the monitor
4-5
Page 48
4. Troubleshooting
4-3-2. Waveforms when no screen is displayed (Analog PC)
①
R,G,B Output Signal of IC5002
4-6
Page 49
4-4. No Video (Digital-HDMI)
4. Troubleshooting
Symptom
Major
checkpoints
The LED power turns on but the screen is blank when the DVI cable or HDMI cable is connected.
-
Even though the LED power turns on, the screen is blank when connecting the DVI cable or
-
HDMI cable.
Check the DVI cable or HDMI 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.
-
IC5002
Main Board Front
Diagnostics
CautionMake sure to disconnect the power before working on the IP board.
Power Indicator is off.
Lamp on, no video.
Yes
Check the connection
of HDMI cable?
Yes
② Does the digital data appear
at D3006~D3013 ( HDMI1)?
Yes
Does the digital data appear at
output of IC5002?
Yes
Check a LVDS cable?
Replace lcd panel?
No
No
No
No
Input a HDMI cable.
Check HDMI cable.
Change the cable.
Check the IC5002.
Change a main PBA.
Please, Call to Samsung Co. LTD.
4-7
Page 50
4. Troubleshooting
4-4-1. Circuit diagrams and waveforms (Digital-HDMI) when no screen is
displayed on the monitor
4-8
Page 51
4-4-2. Waveforms when a blank screen is displayed (Digital-HDMI)
4. Troubleshooting
Digital Output Data of IC3250
②
Signal of HDMI(Data)
③
4-9
Page 52
4. Troubleshooting
4-5. No Picture (Tuner_CVBS)
SymptomThe LED power turns on but the screen is blank when the RF cable is connected.-
Even though the LED power turns on, the screen is blank when connecting the RF cable.
-
Check the RF cable connections.
Major
checkpoints
-
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.
-
IC5002
TU6001
Main Board Front
Diagnostics
CautionMake sure to disconnect the power before working on the IP board.
Power Indicator is off.
Lamp on, no picure.
Yes
④ Does the signal appear at
L6001?
Yes
④ Does the signal appear at #9
of TU6001?
Yes
③ Does the digital data appear
at output of RA5008 ~RA5012?
Yes
Check a LVDS cable?
Replacea lcd panel?
No
No
No
No
No
Connect the RF cable and
check RF signal.
Check the Tuner Vcc 5V.
Change a main PBA.
Change a main PCB ass’y.
Check a IC5002.
Change a main PCB ass’y.
Please, Call to Samsung Co. LTD.
4-10
Page 53
4. Troubleshooting
4-5-1. Circuit diagrams and waveforms (Tuner_CVBS) when no screen is
displayed on the monitor
4-11
Page 54
4. Troubleshooting
4-5-2. Waveforms when a blank screen is displayed (Tuner_CVBS)
CVBS Output Signal
③
Tuner_CVBS Output Signal
④
4-12
Page 55
4-6. No Picture (AV)
SymptomThe LED power turns on but the screen is blank when the Antenna Cable is connected.-
Even though the LED power turns on, the screen is blank when connecting the Antenna Cable.
-
Check the Antenna Cable connections.
Major
checkpoints
-
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.
-
4. Troubleshooting
Diagnostics
Power Indicator is off.
Lamp on, No signal image.
Yes
④ Does the AV signal appear at
#52pin of IC5002?
Yes
Check a LVDS cable?
Replace lcd panel?
CautionMake sure to disconnect the power before working on the IP board.
Main Board Front
No
No
No
check antenna cable
check antenna cable
Change a main PBA
Please, Call to Samsung Co. LTD.
4-13
Page 56
4. Troubleshooting
4-6-1. Circuit diagrams and waveforms (AV) when no screen is displayed on
the monitor
4-14
Page 57
4-6-2. Waveforms when a blank screen is displayed (AV)
CVBS Output Signal
④
4. Troubleshooting
4-15
Page 58
4. Troubleshooting
4-7. No Picture (S-VIDEO)
SymptomThe LED power turns on but the screen is blank when the Antenna Cable is connected.-
Even though the LED power turns on, the screen is blank when connecting the Antenna Cable.
-
Check the Antenna Cable connections.
Major
checkpoints
-
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.
-
Diagnostics
Power Indicator is off.
Lamp on, No signal image.
Yes
④ Does the S-VIDEO signal
appear at #50, 51 pin of IC5002?
Yes
Check a LVDS cable?
Replace lcd panel?
CautionMake sure to disconnect the power before working on the IP board.
Main Board Front
No
No
No
check antenna cable
check antenna cable
Change a main PBA
Please, Call to Samsung Co. LTD.
4-16
Page 59
4. Troubleshooting
4-7-1. Circuit diagrams and waveforms (S-VIDEO) when no screen is displayed
on the monitor
4-17
Page 60
4. Troubleshooting
4-7-2. Waveforms when a blank screen is displayed (S-VIDEO)
CVBS Output Signal
④
4-18
Page 61
4-8. No Picture (Component)
SymptomThe LED power turns on but the screen is blank when the Antenna Cable is connected.-
Even though the LED power turns on, the screen is blank when connecting the Antenna Cable.
-
Check the Ant enna Cable connections.
Major
checkpoints
-
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.
-
4. Troubleshooting
Diagnostics
Power Indicator is off.
Lamp on, No signal image.
Yes
④ Does the Component signal
appear at #44, 46, 47 pin of
IC5002?
Yes
Check a LVDS cable?
Replace lcd panel?
CautionMake sure to disconnect the power before working on the IP board.
Main Board Front
No
No
No
check antenna cable
check antenna cable
Change a main PBA
Please, Call to Samsung Co. LTD.
4-19
Page 62
4. Troubleshooting
4-8-1. Circuit diagrams and waveforms (Component) when no screen is
displayed on the monitor
4-20
Page 63
4-8-2. Waveforms when a blank screen is displayed (Component)
CVBS Output Signal
④
4. Troubleshooting
4-21
Page 64
4. Troubleshooting
4-9. No Sound
SymptomThe LED power turns on but the screen is blank when the DVI cable is connected.-
-
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.
Diagnostics
IC5002
Picture is display, no sound.
Yes
⑥
Does the signal appear at Pin
#71,72,73,74,76,77,78,79 of IC5002?
Yes
Check the 3.3V of #25 IC2005.
Yes
Main Board Front
No
No
No
IC2005
Connect a sound cable.
control a volume.
Check a connection harness.
check IC2003.
Change a main PBA.
⑦
check output signal of
#36,37,31,30,54,53,48,47 of IC2005
Yes
Replace the speaker ass’y?
CautionMake sure to disconnect the power before working on the IP board.
No
4-22
check IC2005.
Page 65
4. Troubleshooting
21
R5009
2
1
R5013_DE
21R5015_DE
2
1
R5014_DE
8
6
4
2
7
5
3
1
RA5030
8
6
4
2
7
531
RA5029
2
1C5077
864
2
753
1
RA5028
2
1
R5067
21R5074
21R5081
2
1
C5084
2
1
C5079
21C5101
2
1
R5068
21C5100
21R5076
21
C5088
21
C5083
2
1C5082
21
C5078
8
6
4
2
7
5
3
1
RA5033_DE
8
6
4
2
7
5
3
1
RA5032
21
C508621C5087
2
1C5081
99
98
97
96
95
94
93
92
919089
88
87
86
85
84
83
82
818079
78
77
76
75
74
73
72
717069
68
67
66
65
64
63
62
61
60
59
58
57
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
21C5091
2
1
R5065
21C5094
21R5078
21
C5089
2
1C5085
2
1C5080
SW_POWER
IDENT_HP
IDENT_DVI
IDENT_HDMI2
SEL1_HDMI
1/16W
10KOHM
100OHM
100OHM
100OHM
100OHM
100OHM
50V2.2NF
100OHM
100NF 25V
1UF 10V
4.7UF 10V
10KOHM
1/16W
10V4.7UF
4.7UF 10V
10V4.7UF
10V10UF
1/10W
22KOHM
50V2.2NF
100OHM
2.2NF 50V
4.7UF 10V
4.7UF 10V
22KOHM 1/10W
1/10W22KOHM
100OHM
100OHM
4.7UF 10V
A3.3V
A3.3V_AU
FGND
VDDC
A3.3V_VDDP
10V4.7UF
4.7UF 10V
100NF 25V
1/10W22KOHM
A3.3V_ADC
FGND
151413
121110
9
8
7
6
5
4
50V
2.2NF
FGND
A3.3V_SIF
1/10W0OHM
SC_SR_IN
SC_SL_IN
MDATA<4>
SC_SR_OUT2
SC_SL_OUT2
COMP_SR_IN
COMP_SL_IN
DTV_AUDIO_R
DTV_AUDIO_L
PC_SR_IN
MDATA<9>
MDATA<6>
MDATA<5>
MDATA<7>
MDATA<8>
MDATA<10>
MDATA<11>
MDATA<12>
MDATA<13>
MDATA<14>
MDATA<15>
DQS1
PC_SL_IN
MDATA(0:15)
IDENT_PC
IDENT_SIDE_SVHS
IDENT_COMP
IDENT_HDMI1
HP_OUT_L1
HP_OUT_R1
MDATA(0:15)
AVDD_SIF
SIF0P
GND
CVBSOUT0
CVBSOUT1
AVDD_ADC
VCOM0
SIF1P
GND
AUVREADN
AUVRADP
AUVREF
AVDD_AU
AUL0
AUR0
AUL1
AUR1
AUCOM
AUL2
AUR2
AUL3
AUR3
AUMONO
AUOUTL3
AUOUTR3
AUOUTL2
AUOUTR2
AUOUTL1
AUOUTR1
AUOUTL0
AUOUTR0
GPIOF[0]
GPIOF[1]
GPIOF[2]
GPIOF[3]
GPIOF[4]
GPIOF[5]
GPIOF[6]
GPIOF[7]
GPIOF[9]
VDDP
GND
VDDC
DQS[1]
MDATA[15]
MDATA[14]
GND
MDATA[13]
MDATA[12]
VDDM
MDATA[11]
MDATA[10]
MDATA[9]
MDATA[8]
GND
VDDM
MDATA[7]
MDATA[6]
MDATA[5]
MDATA[4]
VDDM
SIFM
GPIOF[8]
CLOSE TO IC
CHASSIS GND
CLOSE TO IC
CLOSE TO IC
SPK_OUT
SPK_R
SPK_L
CHASSIS GND
CLOSE TO IC
CLOSE TO IC
CLOSE TO IC
CLOSE TO IC
1
SPK_R+
1
SPK_R-
1
SPK_L+
1
SPK_L-
4
3
2
1
CN2001
21
BD2006
21
BD2005
2
1
C2042
21
R2015
21
R2014
21
C2018
21
C2019
21
R2016
2
1
C2015
2
1
C2016
2 1
C2014
21
R2017
2
1
C2017
21
C2013
21
C2012
2 1
C2011
2 1
D2006
21
C2008
2 1
C2004
2 1
C2003
21
BD2001
2 1 C2005
2 1
D2007
21
C200221R2003
4
32
1
L2001
21
C200121R2002
21
C203921R2006
2 1
C2076
2
1
C2078
2 1
R2005
21
C2041
21
BD2003
21
C2079
2 1
C2080
21
R2001
2 1
C2075
2
1
C2077
2
1
R2004
21
C2040
21
BD2002
21
C2006
21
C2007
2 1
C2009
2
1
C2010
2 1
C2038
2 1
BD2004
2
1
D2008
21
C2036
21
C203521R200821C203421R2007
2 1
C2029
2 1
R2010
2 1
C2031
2 1
C2030
2 1
R2009
21
BD2008
21
C2027
21
C2028
21
BD2007
2 1
C2082
21
C2083
2
1
C2081
21
C2043
21
C2023
2 1
D2009
MGND1
9
8
7
6
56
55
545352
51
50
5
49
4847464544
43
42
41
40
439
38
37
36
35
34
33
32
31
30
3
29
282726
25
24
23
22
21
20
2
19
18
171615
14
13
12
11
10
1
IC2005
21
C2024
2 1
R2013
21
C202521R201221C202621R2011
21
C2037
4
32
1
L2002
2
1
C2033
2 1
C2032
100NF 50V
50V
470NF
DDA-0808
100NF 25V
4.7OHM 1/10W1NF 50V4.7OHM 1/10W1NF 50V
1/10W0OHM
50V22NF
NTP-3000
75V
LL4148
10V1UF
25V100NF
33PF 50V
33PF 50V
B1.8V_AMP
25V
100NF
BEAD_CHIP
1NF
50V50V1NF
BEAD_CHIP
4.7KOHM
1/10W
100NF 50V
100NF 50V
4.7KOHM
1/10W
100NF 50V
4.7OHM
1/10W
1NF 50V
1/10W
4.7OHM
1NF 50V
25V100NF
75V
LL4148
BEAD_CHIP
220UF
35V
22NF 50V
10V1UF
1UF 10V
22NF 50V
BEAD_CHIP
50V1NF
1/10W
4.7KOHM
50V
100NF
50V100NF
4.7OHM 1/10W
50V470NF
50V1NF
BEAD_CHIP
50V1NF
50V
100NF
100NF 50V
B12VS
1/10W4.7OHM1NF 50V
4.7OHM 1/10W1NF 50V
DDA-0808
1/10W
4.7OHM50V1NF
75V
LL4148
25V
100NF
BEAD_CHIP
B12VS
35V
220UF
100NF 25V
B3.3VD
22NF 50V
75V
LL4148
10V1UF
100PF 50V
25V100NF
100OHM 1/10W
25V100NF
AVDD_PLL
10UF 10V
DVDD_PLL
1/10W3.3KOHM
100PF 50V
1NF 50V
1/10W100OHM
1KOHM 1/10W
B1.8V_AMP
AVDD_PLL
10UF 10V
DVDD_PLL
BEAD_CHIP
BEAD_CHIP
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
CN_S_004
AMP_MUTE
AUSD
AUWS
AUSCK
AMP_RESET
AUMCKO
SDA1
SCL1
SPK_R
SPK_R_
SPK_L
SPK_L_
SPK_L
SPK_L_
SPK_R
SPK_R_
4.7KOHM
1/10W
25V
100NF
10UF10V
CLK_
CLK_
VSS_
AD
/RESET
VDR1A
BST1A
PGND1A
PGND1A
OUT1A
OUT1A
PVDD1A
PVDD1A
PVDD1B
PVDD1B
OUT1B
OUT1B
PGND1B
PGND1B
BST1B
VDR1B
NC
VDR2A
BST2A
PGND2A
PGND2A
OUT2A
OUT2A
PVDD2A
PVDD2A
PVDD2B
PVDD2B
OUT2B
OUT2B
PGND2B
PGND2B
BST2B
VDR2B
SOFT_RESET_2
PWM_MASK_2
AUX_PWM3A
AUX_PWM3B
SCL
SDA
BCK
WCK
SDATA
DVDD
DVSS
TEST0
DVDDPLL
AVDDPLL
LFM
AGNDPLL
DGNDPLL
VDD_
4-9-1. Circuit diagrams and waveforms (No Sound) when no screen is
displayed on the monitor
4-23
Page 66
4. Troubleshooting
4-9-1. Waveforms when a blank screen is displayed (No Sound)
The Signal are Inputed to IC5002
⑥
DC 3.3V
⑦
4-24
Page 67
4-10. Faults and Corrective Actions
Fault Photo Symptoms and Corrective ActionsRemarks
Symptoms: DVI signals are not recognized.
Causes: This fault occurs when the PC does not
recognize the mode information because
the DVI DDC has not been input to the
monitor.
Corrective Actions: Input the DVI DDC to the monitor.
* Refer to the Training Manual for
information on inputting the DVI DDC.
4. Troubleshooting
Symptoms: When the monitor is turned on,
only a full white pattern is displayed
continually regardless of the signals.
Causes: This fault occurs when only the lamp
power is supplied and no video signals are
input to the panel due to a fault or incorrect
connections of the LVDS cable.
Corrective Actions: Replace or reconnect the LVDS
cable correctly so that video
signals can be supplied to the
panel.
Symptoms: When connecting the DVD, noise
occurs on the screen.
Causes: The HDCP key is not inserted.
Corrective Actions: Enter the HDCP key.
(See page 4-17.)
* A full white pattern is a feature of the
TN panel and is displayed when no
video signals are supplied.
4-25
Page 68
4. Troubleshooting
4-11. Adjustment
4-11-1. Service Instruction
1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.
2. Use the specied test equipment or its equivalent.
3. Correct impedance matching is essential.
4. Avoid overload. Excessive signal from a sweep generator might overload the front-end
of the TV. When inserting signal markers, do not allow the marker generator to distort test result.
5. Connect the TV only to an AC power source with voltage and frequency as specied on the backcover nameplate.
6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure that the power cord is
disconnected before replacing any parts.
7. To protect aganist shock hazard, use an isolation transform.
4-12. How to Access Service Mode
4-12-1. Entering Factory Mode
2. To enter “Service Mode” Press the remote -control keys in this sequence :
- If you do not have Factory remote - control
MUTEPower OFF18Power ON2
- If you have Factory remote - control
PICTURE ON
- The buttons are active in the service mode.
1. Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left
Arrow Right, Menu, Enter, Number Key(0~9)
2. Function - Control Key : Power, CH +, CH -, VOL +, VOL -, Menu, TV/VIDEO(Enter)
INFOFACTORY
4-26
Page 69
4-13. Service Adjustment
4-13-1. White Balance - Calibration
If picture color is wrong, do calibration rst.
Equipment : CA210, Patten : chess pattern
Execute calibration in Factory Mode
Source PC : 1024*768/60Hz
(Gray patten)
4. Troubleshooting
4-13-2. White Balance - Adjustment
If picture color is wrong, check White Balance condition.
Equipment : CA210, Patten : Toshiba
Adjust W/B in Factory Mode
Sub brightness and R/G/B Offset controls low light region
Sub contrast and R/G/B Gain controls high light region
Source AV : PAL composite, Component : 1280*720/60Hz
HDMI[DVI] : 1280*720/60Hz
[ Test Pattern : MSPG-945 Series Pattern #16 ]
*Color temperature
1500K +/-500, -6 ~-20 MPCD
*Color coordinate
H/L : 272/278 +/- 2 35.0 Ft +/- 2.0Ft
L/L : 272/278 +/- 3 1.5 Ft +/- 0.2Ft
Toshiba Patten
4-13-3. Conditions for Measurement
1. On the basis of toshiba ABL pattern : High Light level (57 IRE)
- INPUT SIGNAL GENERATOR : MSPG-925LTH
* Mode NO 2 : 744X484@60 Hz
NO 6 : 1280X720@60 Hz
NO 21 : 1024X768@60 Hz
* Pattern NO 36 : 16 Color Pattern
NO 16 : Toshiba ABL Pattern
2. Optical measuring device : CA210 (FL)
Please use the MSPG-925 LTH generator for model LE26M51B/LE32M51B/LE40M51B/LE46M51B.
4-27
Page 70
4. Troubleshooting
4-13-4. Method of Adjustment
1. Adjust the white balance of AV, Component Modes.
(AV→Component)
a) Set the input to the mode in which the adjustment will be made.
(RF→DTV→PC→DVI).
* Input signal - VIDEO Mode : Model #2 (744*484 Mode), Pattern #16
- DTV,DVI Mode : Model #6 (1280*720 Mode), Pattern #16
- HDMI Mode: Model #6(1280*720 Mode), Pattern #16
b) Enter factory color control, conrm the data.
c) Adjust the low light. (Refer to table 1, 2 in adjustment position by mode)
- Adjust sub - Brightness to set the ‘Y’ value.
- Adjust red offset (‘x’) and blue offset (‘y’) to the color coordinates.
Low light
Measurement point
Picture 4-2 Toshiba ABL Pattern
* Do not adjust green offset data.
d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode)
- Adjust red gain (‘x’) and blue gain (‘y’) to the color coordinates.
* Do not adjust the green gain and sub-contrast (Y) data.
d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode)
- Adjust red gain (‘x’) and blue gain (‘y’) to the color coordinates.
* Do not adjust the green gain and sub-contrast (Y) data.
Low light
Measurement point
Picture 4-3 Toshiba ABL Pattern
4-28
Page 71
4-14. Software Upgrade
4-14-1. How to Update Flash ROM
1. Install the Flash Downloader
Connector Set(D-SUB) and D-SUB cable to execute Program Update.
4. Troubleshooting
2. Flash Downloader program update
- Turn on the TV Set
- Click “Connect” icon on the MSTAR tool.
- Click “Read”, and Choose a new S/W.
- Click “Auto”, and “Run”
4-29
Page 72
7. Schematic Diagram
7-1. Circuit Descriptions
7. Schematic Diagram
7-1
Page 73
7. Schematic Diagram
DVI
AV
HDMI
S-Video
7-2. Block description
T-MFM consists of three main blocks
1. Main board : Video signal processing
2. IP board : Power supply & Inverter
3. T-con board : LCD Panel control
7-2
Page 74
7-3. Schematic Diagrams
This Document can not be used without Samsungs authorization.
7. Schematic Diagrams
7-3
Page 75
7. Schematic Diagrams
This Document can not be used without Samsungs authorization.
7-4
Page 76
This Document can not be used without Samsungs authorization.
7. Schematic Diagrams
7-5
Page 77
7. Schematic Diagrams
This Document can not be used without Samsungs authorization.
7-6
Page 78
This Document can not be used without Samsungs authorization.
7. Schematic Diagrams
7-7
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