Samsung B1630, B1730NW, B1930 Schematic
LCD-Monitor
Chassis : LPU16YS
LPU17NS
LPU19YS / LPU19NS
LPU20YS
LPU22YS
Model : B1630N
B1730NW
B1930N / B1930NW
B2030N
B2230N
Manual
SERVICE
TFT-LCD Monitor Contens
1. Precautions
2. Product specications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
B1630N / B1730NW / B1930N
B1930NW / B2030N / B2230N
Refer to the service manual in the GSPN (see the rear cover) for the more information.
Contents
1. Precautions
1-1. Safety Precautions ......................................................................................................... 1-1
1-2. Servicing Precautions ..................................................................................................... 1-2
1-3. Static Electricity Precautions .......................................................................................... 1-2
1-4. Installation Precautions .................................................................................................. 1-3
2. Product specications
2-1. Feature & Specications ................................................................................................. 2-1
2-2. Spec Comparison to the Old Models .............................................................................. 2-3
2-3. Accessories .................................................................................................................... 2-5
3. Disassembly and Assembly
3-1. Disassembly ................................................................................................................... 3-1
4. Troubleshooting
4-1. Troubleshooting .............................................................................................................. 4-1
4-2. When the Power Does Not Turn On ............................................................................... 4-2
4-3. When the screen is blank ............................................................................................... 4-4
4-4. Error Examples and Actions ........................................................................................... 4-8
4-5. Adjustment ...................................................................................................................... 4-9
5. Exploded View & Part List
5-1. Exploded View ................................................................................................................ 5-1
5-2. Parts List (B1630N) ........................................................................................................ 5-2
5-3. Parts List (B1730NW) ..................................................................................................... 5-7
5-4. Parts List (B1930N) ...................................................................................................... 5-10
5-5. Parts List (B1930NW) ................................................................................................... 5-15
5-6. Parts List (B2030N) ...................................................................................................... 5-20
5-7. Parts List (B2230N) ...................................................................................................... 5-23
6. Wiring Diagram
6-1. Wiring Diagram - Main Board ......................................................................................... 6-1
6-2. Wiring Diagram - IP Board .............................................................................................. 6-4
6-3. Connector Functions ...................................................................................................... 6-5
6-4. Cables ............................................................................................................................ 6-5
GSPN (Global Service Partner Network)
Area Web Site
North America http://service.samsungportal.com
Latin America http://latin.samsungportal.com
CIS http://cis.samsungportal.com
Europe http://europe.samsungportal.com
China http://china.samsungportal.com
Asia http://asia.samsungportal.com
Mideast & Africa http://mea.samsungportal.com
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.
© 2009 Samsung Electronics Co.,Ltd.
All rights reserved.
Printed in Korea
P/N: BN82-00841A-00
1. Precautions
1. Precautions
1-1. Safety Precautions
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
2-WIRE CORD
*ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED)
TEST ALL
EXPOSED METAL
SURFACES
LEAKAGE
CURRENT
TESTER
EARTH
GROUND
Figure 1-1. Leakage Current Test Circuit
With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch 4.
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
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.
1-3
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. Precautions
Memo
1-4
2. Product specications
2. Product specications
2-1. Feature & Specications
Feature
Model B1630N B1730NW B1930N
Brightness(Typical) 250 cd/m2 250 cd/m2 250 cd/m2
Response Time(Typical) 5ms 5ms 5ms
Contrast Ratio(Typical) DC 50000:1
(Typ.500:1)
Viewing Angle
(Horizontal/Vertical)
Stand by Power(DPMS) <0.3W <0.3W <0.3W
Special Features MagicBright3, MagicEco, MagicAngle, Off timer, Image Size,
Model B1630N B1730NW B1930N
LCD Panel
Scanning Frequency
Color Supported 16.7M
Resolution 1360 x 768 1440 x 900
Input Signal 15.6” Analog 17” Analog 18.5” Analog
90˚/ 65˚ (CR>10) 160˚/150˚ (CR>10) 170˚/160˚ (CR>10)
Color Effect,Customized key, Windows Vista Basic
Specications
TFT-LCD panel, RGB vertical stripe, normally white transmissive
15.6”Wide
0.252 mm(H) x 0.252 mm(V)
pixel pitch
Horizontal:30 ~ 61 kHz
Vertical:56 ~ 75 Hz
DC 50000:1
(Typ.600:1)
17”Wide
0.255 mm(H) x 0.255 mm(V)
pixel pitch
Horizontal:30 ~ 81 kHz
Vertical:56 ~ 75 Hz
DC 50000:1
(Typ. 1000:1)
18.5”Wide
0.3 mm(H) x 0.3 mm(V)
pixel pitch
Horizontal:31 ~ 80 kHz
Vertical:56 ~ 75 Hz
1360 x 768
Input Sync. Signal
Maximum Pixel Clock 90 MHz 136.75 MHz
Active Display
(Horizontal/Vertical)
AC power voltage & Frequency AC 110~130V, 60Hz & AC 200~240V, 50Hz
Power consumption Less than 22W Less than 22W
Dimension Set
(W x H x D)
Weight 2.65kg 2.9kg
Environmental Considerations
Note: Designs and specications are subject to change without prior notice.
344.232(H) x 193.536(V) 367.2(H) x 229.5(V) 409.8(H) x 230.4(V)
388 x 338 x 178mm 413 x 375 x 178mm
Separate H/V sync, Composite H/V, Sync-on-Green
Level:TTL level
455.6 x 375 x 178mm
Operating Temperature: 10˚C ~ 40˚C(50˚F ~ 104˚F)
Operating Humidity : 10% ~ 80%
Operating Temperature: -25˚C ~ 45˚C(-13˚F ~ 113˚F)
Operating Humidity: 5% ~ 90%
89 MHz
Less than 22W
3.55kg
2-1
2-2
2. Product specications
Feature
Model B1930NW B2030N B2230N
Brightness(Typical) 300 cd/m2 250 cd/m2 300 cd/m2
Response Time(Typical) 5ms 5ms 5ms
Contrast Ratio(Typical) DC 70000:1
(Typ. 1000:1)
Viewing Angle
(Horizontal/Vertical)
Stand by Power(DPMS) <0.3W <0.3W <0.3W
Special Features MagicBright3, MagicEco, MagicAngle, Off timer, Image Size,
Model B1930NW B2030N B2230N
LCD Panel
Scanning Frequency
Color Supported 16.7M
Resolution 1440 x 900 1600 x 900
Input Signal 19” Analog 20” Analog 21.5” Analog
160˚/160˚ (CR>10) 170˚/160˚ (CR>10) 170˚/160˚ (CR>10)
Color Effect,Customized key, Windows Vista Basic
Specications
TFT-LCD panel, RGB vertical stripe, normally white transmissive
19”Wide
0.2835 mm(H) x 0.2835 mm(V)
pixel pitch
Horizontal:30 ~ 81 kHz
Vertical:56 ~ 75 Hz
DC 50000:1
(Typ. 1000:1)
20” Wide
0.2768 mm(H) x 0.2768 mm(V)
pixel pitch
Horizontal:30 ~ 81 kHz
Vertical:56 ~ 75 Hz
0.24825 mm(H) x 0.24825 mm(V)
DC 70000:1
(Typ. 1000:1)
21.5” Wide
pixel pitch
Horizontal:31 ~ 80 kHz
Vertical:50 ~ 75 Hz
1920 x1 080
Input Sync. Signal
Maximum Pixel Clock 137 MHz 150 MHz
Active Display
(Horizontal/Vertical)
AC power voltage & Frequency AC 110~130V, 60Hz & AC 200~240V, 50Hz
Power consumption Less than 39W Less than 28W
Dimension Set
(W x H x D)
Weight 3.95kg 4.1kg
Environmental Considerations
Note: Designs and specications are subject to change without prior notice.
408.24(H) x 255.15(V) 442.8(H) x 249.075(V) 476.64(H) x 268.11(V)
458 x 402 x 178mm 492 x 396 x 178mm 523.4 x 400 x 197mm
Separate H/V sync, Composite H/V, Sync-on-Green
Level:TTL level
Operating Temperature: 10˚C ~ 40˚C(50˚F ~ 104˚F)
Operating Humidity : 10% ~ 80%
Operating Temperature: -25˚C ~ 45˚C(-13˚F ~ 113˚F)
Operating Humidity: 5% ~ 90%
162 MHz
Less than 50W
4.35kg
2-3
2. Product specications
2-2. Spec Comparison to the Old Models
Model
Design
Resolution
Input Analog Analog
B1630N / B1730NW / B1930N /
B1930NW / B2030N / B2230N
1360 x 768
(B1630N/B1930N)
1440 x 900
(B1730NW/B1930NW)
1600 x 900
(B2030N)
1920 x 1080
(B2230N)
633NW / 733NW / 933SN /
933NW / 2033SN / 2233SN
1360 x 768
(633NW/933SN)
1440 x 900
(733NW/933NW)
1600 x 900
(2033SN)
1920 x 1080
(2233SN)
Response Time 5ms 5ms
Viewing Angle
Brightness
Contrast
90/65(CR>10)
(B1630N)
160/150(CR>10)
(B1730NW)
160/160(CR>10)
(B1930NW)
170/160(CR>10)
(B1930N/B2030N/B2230N)
250 m²
(B1630N/B1730NW/B1930N/B2030N)
300 m²
(B1930NW/B2230N)
50,000:1(DC)
(B1630N/B1730NW/B1930N/B2030N)
70,000:1(DC)
(B1930NW/B2230N)
(633NW/733NW/933SN/2033SN)
(933SN/933NW/2033SN/2233SN)
90/65(CR>10)
(633NW)
160/150(CR>10)
(733NW)
160/160(CR>10)
(933NW)
170/160(CR>10)
(933SN/2033SN/2233SN)
250 m²
300 cm²
(933NW/2233SN)
12,000:1(DC) (633NW)
15,000:1(DC) (733NW)
50,000:1(DC)
MagicBright 4 Step 7 step
MagicBright3
Feature
MagicEco
MagicAngle
Off timer
Image Size
Color Effect
MagicBright3
Off timer
Image Size
Color Effect
2-4
2. Product specications
*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.
*MagicAngle
- Lean Back Mode1: Select when viewing from a slightly lower angle.
- Lean Back Mode2: Select when viewing from the bottom.
- Standing Mode: Select when viewing from the top.
- Side Mode: Select when viewing from the left or right.
- Custom: When <Custom> is selected, settings for <Lean Back Mode 1> is applied by default.
User can set suitable picture quality as needed.
*MagicEco
- 100%: the power consumption is 100% of Default Setting.
- 75%: the power consumption is 75% of Default Setting.
- 50%: the power consumption is 50% of Default Setting.
2-5
2. Product specications
2-3. Accessories
Product Description Ccde. No Remark
Quick Setup Guide BN68-02480A
Warranty Card
(Not available in all locations)
User’s Guide,
Monitor Driver,
Natural Color Pro Software
D-sub Cable
1,500mm(1.5M)
Power Cord
1,830mm(1.8M)
Cleaning Cloth
160mm x 120mm
BN68-00226R
BN59-00982A
Samsung Electronics
Service center
BN39-00244G
3903-000452
BN63-02368B
2. Product specications
Memo
2-6
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. Disassemble the monitor carefully as directed in the following procedures.
Description Photo Screws
1. Remove the stand body and then remove the two
(2) screws shown in the gure.
2. ① Turn the monitor over and insert your hands
into the top of the monitor at the center and
separate the front cover in the direction of the
arrow as shown in the gure.
② Separate the sides of the front cover up to the
directed line as shown in the gure.
3. Turn the monitor over again to remove the back
cover.
3-1
3-2
3. Disassembly and Assembly
Description Photo Screws
4. Remove the LVDS, LAMP wire and FUNCTION
cable then remove the SHIELD-COVER.
5. Remove the LCD panel.
LAMP
WIRE
LVDS
FUNCTION
6. Remove the two (2) screws shown in the gure.
7. Remove the four (4) screws shown in the gure
and remove the Bracket support.
3-3
3. Disassembly and Assembly
Description Photo Screws
8.
Remove the main PCB and IP boards from the
SHIELD-cover.
IP-BOARD
MAIN-BOARD
※The assembly is in the reverse order of disassembly.
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