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File name MON00-001.pdf

SERVICE BULLETIN PRODUCT: Computer Monitor BULLETIN: MON00-001 MODEL: CSE7839, CSE9839, SUBJECT: Decrease the Failure Rate of Q501 BACKGROUND: Allow a sufficient margin between the Drain and Source of Q501 SOLUTION: Change the capacitance of C501 from 50V/47uF to 100V/10uF. PARTS LIST: See Below ORIGINAL Location No. C501 Part No. 2401-001585 NEW Description Part No. 2401-000393 Description C-ELEC. 100V/10uF 105 C-ELEC. 50V/47uF 105 Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. REV 5-1

File name MON00-002.pdf

SERVICE BULLETIN PRODUCT: Computer Monitor BULLETIN: MON00-002 MODEL: CSM920BT SUBJECT: Decrease the Failure Rate of IC601 BACKGROUND: Do to a surge created in IC601 from the sync-input signal on PIN # 5, internal diode D3 e-b shorts. SOLUTION: Change D606 from switching diode (1n4148) to a zener diode (UZ3.3BSA). PARTS LIST: See Below ORIGINAL Location No. D606 Part No. 0401-000005 NEW Description Part No. 0403-001131 Description Zener UZ3.3BSA, 3.16 3.38V, 500 Switching 1N4148,75V 200ma Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. REV 5-1

File name MON00-003.pdf

SERVICE BULLETIN PRODUCT: Computer Monitor BULLETIN: MON00-003 MODEL: DP17LT, DP17LS SUBJECT: Bright Back Raster with Retrace Lines BACKGROUND: Due to a high current draw from the fly-back transformer, resistors R508 or R509 may open. This will cause maximum brightness with retrace lines on the display. SOLUTION: Remove 1.5M resistors R508 and R509. Replace R509 with a 1Mohm Ѕ watt resistor. Replace R508 with a 1M-ohm Ѕ watt resistor. Also, add a 1M-ohm Ѕ watt resistor in series with R508. Designate the added resistor as R522. See diagram on page 2. PARTS LIST: See Below ORIGINAL Location No. R508 R509 R522 NEW Description 1.5MOHM,5%,1/2W, Carbon 1.5MOHM,5%,1/2W, Carbon Part No. 2001-001052 2001-001052 Part No. 2002-000121 2002-000121 2002-000121 Description 1MOHM,5%,1/2W, R-Composition 1MOHM,5%,1/2W, R-Composition 1MOHM,5%,1/2W, R-Composition NA NA Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 5-1 Circuit Diagram

File name MON00-004.pdf

SERVICE BULLETIN PRODUCT: Computer Monitor BULLETIN: MON00-004 MODEL: CGX1609T SUBJECT: Q504 High Voltage Output Failure BACKGROUND: Under normal conditions, during mode switching, the monitor must operate in a free running state. However, during this state the PC's video card will output a low frequency, while the microprocessor inside the monitor will attempt to operate the horizontal oscillator at (less than 30kHz). This may cause Q504 to fail do to an overload. SOLUTION: The programming inside C-EPROM IC209 has been changed. Before Change: REV 1.2 range of detection 19kHz -112kHz. After Change: REV 1.3 range of detection 29kHz ­ 107kHz. PARTS LIST: See Below. REV # will be listed on EPROM label. ORIGINAL Location No. IC209 Part No. 1102-000223 NEW Description C-EPROM 27C256 Part No. 1102-000223 Description C-EPROM 27C256 Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 6-1

File name MON00-005.pdf

SERVICE BULLETIN PRODUCT: Computer Monitor BULLETIN: MON00-005 MODEL: PG19LS9U, PG19HS9U, PG19RS9T, PG19SS9T, PG19PS9L, PG19LT9U, Samtron 95PT SUBJECT: Improve the High Voltage Electrical Charge for all Pegasus 19" monitors. BACKGROUND: When power is initially turned on, a high voltage arcing sound can be heard because of a charge from anode to bracket or TCO tape. SOLUTION: Improve the isolation between anode and ground. Change capacitor C539 from a 2.2uf 50V C-Elec. Non-Polar to a 1uf 63V C-MP. This should be applied to monitors produced from March 2000 to May 2000. PARTS LIST: ORIGINAL Location No. C539 Part No. 2401-000649 NEW Description C-Elec NP 50V, 2.2uF Part No. 2305-000237 Description C-MP 63V, 1uF Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 6-1

File name MON00-006.pdf

SERVICE BULLETIN PRODUCT: LCD Monitor BULLETIN: MON00-006 MODEL: ALL MODELS SUBJECT: Warranty Claims BACKGROUND: Samsung is revising the method of inputting location numbers into the Warranty NARDA Claims. The current method using the service manual Exploded View & Parts List (page number and number pointing to the part) will no longer be in effect as of now. The change is being made in order to increase the accuracy of the data as it is input to our database. SOLUTION: List the location as it appears in the Electrical Parts List. If the assembly is not listed in the Electrical Parts List then list the name of the assembly as it appears in the Exploded View Parts List. NARDA PARTS LIST: Example SyncMaster 530TFT (LXE350/LXE550) Service Manual Original Method QTY. PART NO./REF NO. 1 1 1 1 BN44-00007A / 16 BN07-00001A / 3 BN41-00001A / 6 BN75-00012A / 1 PART DESCRIPTION INVERTER PCB LCD PANEL MAIN PCB UNIT COVER FRONT 1 1 1 1 New Method QTY. PART NO./REF NO. BN44-00007A / INVERTER BN07-00001A / LCD PANEL BN41-00001A / MAIN PCB BN75-00012A / FRONTCOVER Description INVERTER PCB LCD PANEL MAIN PCB UNIT COVER FRONT Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 9-1

File name MON00-007.pdf

SERVICE BULLETIN PRODUCT: CRT Monitor BULLETIN: MON00-007 MODEL: ALL MODELS SUBJECT: Warranty Claims BACKGROUND: Samsung is revising the method of inputting defect, repair, and location codes into the Warranty NARDA Claims. 1) Defect Codes ­ defect codes such as NONE will no longer be accepted and must be as accurate as possible with the given EIA codes. Defect codes must be listed in the appropriate box on the NARDA claim. Defect codes have been found floating in the Customer Complaint box. 2) Repair Codes ­ Repair codes must be as accurate as possible, not confusing mechanical with electrical alignments and internal with external. Repair codes must be listed in the appropriate box on the NARDA claim. Repair codes have been found listed in the Explanation of Service Performed box. 3) Location Codes - Location code NISM no longer will be accepted. Location codes must be listed in the appropriate box on the NARDA claim. Location codes have been found randomly placed all over the NARDA claims. The change is being made in order to increase data accuracy input to our database. Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 12-1 1 SOLUTION: Please observe the following guidelines and refer to NARDA form example on page 3. 1) Defect Codes: 1A) Codes must be derived from the information provided by the customer or by the actual symptom observed by the technician. See Example 1. 1B) List the defect code in the DEFECT CODE box. See Example 1. 2) Repair Codes: 2A) Codes must input into the MFG CODE/REF box. See Example 2 3) Location Codes: 3A) When replacing a part the location code must be input to the NARDA claim to the right of PART NO. See Example 3 3B) When performing work to a component other than replacing it the location code must be input to the NARDA claim in the PART NO/REF NO box. See Example 4. 3C) Performing a necessary alignment do to a customer complaint, using soft-jig or any other factory alignment jig which will set the monitor to within factory specifications, use the EPROM location usually IC203. Check service manual for the appropriate IC location. See Example 4. PARTS LIST: Original Method QTY. PART NO./REF NO. PART DESCRIPTION New Method QTY. PART NO./REF NO. Description 2 3

File name MON01-001.pdf

SERVICE BULLETIN PRODUCT: LCD Monitor BULLETIN: MON01-001 MODEL: ALL 17" and 18" MODELS SUBJECT: Part Number Information BACKGROUND: Samsung 17" models with E2 panels may have a dark or faded area of video around the edge of the LCD panel. Samsung 18" models have an image retention problem on the early LCD monitors manufactured with E2 panels. SOLUTION: Samsung will now use E4 panels in its production of 17" models and E3 panels in its production of 18" models. With the application of the new panels there will be an improvement in quality and a reduction in the number of complaints. See page 2 for additional information. PARTS LIST: See page 3 for the parts information and changes made by model. Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 4-1 1 Early Version 17" E2 Panel Later Version 17" E4 Panel The early version LT170E2-131 panel and later version LTM170E4-L01 are not interchangeable. Any complaints regarding the edge color being faded on the E2 panel must be dealt with by either exchanging the monitor, or by replacing the LCD panel, main PCB, and inverter PCB. 2 Panel Type Model SyncMaster 700TFT 770TFT 770TFT 770TFT 170MP 170T 170MB 180T 800TFT 180T 170MP 170MB 170T 770TFT 770TFT 180T LCD Panel Part No. BN07-10001D BN07-10001D BN07-10001D BN07-10001D BN07-10001D BN07-10001D BN07-10001D BN07-10001E BN07-10001E BN07-10001E BN07-00018A BN07-00018A BN07-00018A BN07-00018A BN07-00018A BN07-00019A Main PCB Part No. BN94-00022B BN94-00022C BN94-00022C BN94-00022C BN94-00034D BN94-00046A BN94-00049B BN94-00052A BN94-00003L BN94-00077A BN94-00034P BN94-00034R BN94-00071B BN94-00071A BN94-00071A BN94-00077A Inverter Board Part No. BN44-00029A BN44-00029A BN44-00029A BN44-00029A BN44-00029A BN44-00029A BN44-00029A BN44-00029A BN44-00029A BN44-00029A BN44-00038A BN44-00038A BN44-00038A BN44-00038A BN44-00038A BN44-00029A TUNER LT170E2-131 LSA700SN/XAA 17" E2 PANEL DV17MSSAN DV17MSSANC DV17MSSANP ML17NSSSS GR17MSSAS ML17XSSSS BN98-00011C None LT181E2-131 GR18MSSSS 18" E2 PANEL LSA800SN/XAA GT18MSSS LTM170E4-L01 ML17NSSS 17" E4 PANEL ML17XSSS CN17BSAS CN17ASAN CN17ASAB BN98-00011C None LTM181E3-132 GT18MSSS 18" E3 PANEL 3

File name MON01-002.pdf

SERVICE BULLETIN PRODUCT: LCD Monitor BULLETIN: MON01-002 Revised MODEL: CN17BSAN SUBJECT: ATI Video Adapter Compatibility BACKGROUND: There is a DVI (Digital Visual Interface) timing difference between the Samsung SyncMaster 170tTFT " (CN17BSAN), and the ATI All In Wonder Radeon and Radeon VE video adapters. The timing difference occurs during the 720x400/70Hz mode of the initial boot up screen. See symptom below. Once the desktop resolution is active, the video appears normal. SOLUTION: Replace the microprocessor CN17BSF at location IC500 with date code of 2001.3.24 or later. PARTS LIST: Original Method QTY. PART NO./REF NO. 1 BN91-00020A PART DESCRIPTION IC-MICOMCONTROLLER 1 New Method QTY. PART NO./REF NO. BN91-00029H Description IC-MICOMCONTROLLER Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 4-1 1

File name MON01-003.pdf

SERVICE BULLETIN PRODUCT: CRT Monitor BULLETIN: MON01-003 MODEL: PG19NS SUBJECT: Horizontal Size/Width Instability BACKGROUND: A problem may occur where the H-size becomes smaller than normal or the H-position becomes unstable while warming up after power on. SOLUTION: As of September 2000, a change was made to the horizontal deflection circuit. PARTS LIST: See below. ORIGINAL Location No. R409 BD402 D401 NEW Description 10 ohm, ј W 1.2uH Part No. 2001-000110 3301-000011 0402-000249 Part No. 2001-000456 Description 2.2 ohm, ј W Delete RG4 DIODE 0402-000273 31DF4, DIODE ADD A BEAD BETWEEN ANODE OF D401 & GROUND BEAD Disclaimer: This information is provided "as is" without warranty of any kind either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 4-1 1

File name MON01-004.pdf

SERVICE BULLETIN Product: 15" CDT MONITOR Model: DP15L*, DT15L* Bulletin No.: MON01-004 (00-C/M-E0023) Bulletin Date: MAY 18, 2001 ECN Date: MAY 18, 2001 SyncMaster 550s & Samtron 55E SUBJECT: PC Re-Boot Causing X-Ray Protection Shutdown Background: When re-booting certain PCs, the x-ray protection circuit will turn on and cause the monitor to have no video and toggle the power LED. Cause: When re-booting, the horizontal sync coming from the PC or generator can be unstable. This will generate over an 8V peak. At this time, the duty cycle of the voltage, which is approximately 100ms, is recognized by the processor, and turns on the X-Ray protection. Solution: Change Capacitor C417 Application Date: February 1, 2001 ORIGINAL Location No. C417 NEW Description Part No. 2305-000412 Part No. 2202-002009 Description C-MP, 63V, 470nF C-Ceramic, 50V, 100nF Revision (6-4-2001) 1

File name MON01-005.pdf

SERVICE BULLETIN Product: 17" LCD MONITOR Model: CN17VSSN Bulletin No.: MON01-005 (01-C/M-E0036) Bulletin Date: August 29, 2001 ECN Date: MAY 2001 SyncMaster 760V SUBJECT: LCD Panel Change Background: Early production of the SyncMaster 760V used a Unipac manufactured LCD panel. This panel has been changed to one manufactured by ADT. When replacing the Unipac panel with the ADT, the unit panel bracket should be replaced as well. Cause: Solution: Unipac was replaced with ADT to improve image quality. Replace the panel and panel bracket when replacing defective Unipac panels with ADT panels. Application Date: May 2001 ORIGINAL Location No. LCD PANEL BRKT-PANEL BRKT-FRONT NEW Description Unipac panel Part No. BN07-00028A BN70-10039A BN75-00009A Part No. BN07-00044A BN75-00128B Description ADT Panel UNIT-BRKT PANEL BRKT-PANEL REAR LSA710 UNIT/BRKT-FRONT Revision (8-29-2001) 1

File name MON01-006.pdf

SERVICE BULLETIN Product: 17" LCD MONITOR Model: CN17BSAN Bulletin No.: MON01-006 (01-C/M-E0035) Bulletin Date: September 17, 2001 ECN Date: August 24, 2001 SyncMaster 170T SUBJECT: ATI Radeon (MAC Edition) Video Card Compatibility Background: The SyncMaster 170T has a compatibility problem with the ATI Radeon video card. When receiving a Digital signal from the video card with monitor power on, the display goes black after 1~3 seconds (No Video). Cause: Solution: Micom IC program. If a customer needs service for this compatibility problem, replace IC500 version 1.0 Micom IC with new version 1.1. Application Date: August 24, 2001 ORIGINAL Location No. IC500 NEW Description Ver 1.0 Part No. BN91-00029H Part No. BN91-00029H Description Ver 1.1 Revision (10-17-2001) 1

File name MON01-007.pdf

SERVICE BULLETIN Product: NF MONITOR Model: PG17NS, PG19NS Bulletin No.: MON01-007 (00-C/M-E0021) Bulletin Date: May 10, 2001 ECN Date: May 10, 2001 SyncMaster 700NF, 900NF SUBJECT: Display Shift or Size Change Background: The PG17NS and PG19NS may have symptoms of the vertical position changing and horizontal size increasing. Cause: Solution: To correct the vertical position shift, add a jumper wire from BD630 to C321 "+". Change the value of R301 from 100k ohm to 220k ohm. Remove jumper wire connecting IC261 #13 and JP68. To correct the horizontal size increasing symptom, change the type and tolerance on both R286 and R289 from Carbon 5% to Metal 1%. Application Date: August 24, 2001 ORIGINAL Location No. R301 R286 R289 NEW Description R-METAL, 100k, 1% R-CARBON, 180k, 5% R-CARBON, 150k, 5% Part No. 2004-000193 2001-000395 2001-000354 Part No. 2004-000560 2004-000398 2004-000327 Description R-METAL, 220k, 1% R-METAL, 180k, 1% R-METAL, 150k, 1% Revision (10-17-2001) 1 A. Countermeasure for V-position shift 1. Add jump wire on the back side of PCB BD630 IC605 C321 "+" Revision (10-17-2001) 2 2. Replace R301 R301 3. Remove jumper wire which connecting IC261 #13(Vref) and JP68 Revision (10-17-2001) 3 Remove B. Countermeasure for increasing H-size Revision (10-17-2001) 4 R286 R289 Revision (10-17-2001) 5

File name MON01-008.pdf

SERVICE BULLETIN Product: 19" CRT MONITOR Model: AQ19LS, AQ19JS, PN19LT SyncMaster 950b, 955DF, Samtron 96B Bulletin No.: MON01-008 (01-C/M-E0038) Bulletin Date: August 31, 2001 ECN Date: August 30, 2001 SUBJECT: Burnt Capacitor Background: Location C805 and C516 capacitors could burn and cause R513, R507, and Q501 to fail. This will cause a No Video symptom. Cause: Capacitors were under-rated at 1kV before August 30, 2001 manufacturing date. Defective capacitor type is shown below. Solution: To correct the symptom Samsung has changed the capacitor value from 1kV to 2kV. Application Date: August 24, 2001 ORIGINAL Location No. C805, C516 R513, R516 Q501 NEW Description 10nF,10%,1kV,Y5P Part No. 2201-000020 2002-001072 0501-000143 Part No. 2201-000154 SAME SAME Description 10nF,+80-20%,2kV,Y5P SAME SAME 15Kohm,5%,1/2W,AA,TP TR-SMALL SIGNAL 2N6520,PNP,625mW Revision (9-26-2001) 1

File name MON01-009.pdf

SERVICE BULLETIN Product: LCD MONITOR Model: PC21PBSS, PC24PBSS SyncMaster 210T, SyncMaster 240T SUBJECT: Black and White Display Background: The SyncMaster 210T and 240T LCD monitors may display black & white instead of color from either S-Video or Video sources. This symptom is very intermittent and may only occur when switching sources or turning the power on and off repeatedly. Cause: EPROM Program implemented before July 27, 2001 for the SyncMaster 210T. EPROM Program implemented before September 6, 2001 for the SyncMaster 240T. Replace the Main board or EPROM with the standards below: SM210T: Replace EPROM IC403 with version 1.2 (applied as of July 27, 2001) or later. SM240T: Replace the main board if EPROM version is 1.0 or 1.1. ("A3" mark on Sage image-scaler IC). See Page 2. Replace EEPROM IC403 if version is 2.0 to 2.2 Samsung has implemented a new version EPROM from Sep.06, 2001 with Version 2.3 or later. Application Date: July 27, 2001 Bulletin No.: MON01-009 (01-C/M-E0041) Bulletin Date: September 24, 2001 ECN Date: September 24, 2001 Solution: ORIGINAL Location No. 210T (IC403) 240T (IC403) 240T MAIN PBA NEW Description ASSYMAIN/AUTO; PC21PBA_1.1 ASSYMAIN/AUTO; PC21PBA_2.2 ASSYPCB/ST; PC24PS Part No. BN91-00028B BN91-00027C BN94-00060C Part No. BN91-00028B BN91-00027C SAME Description ASSYMAIN/AUTO; PC21PBA_1.2 ASSYMAIN/AUTO; PC21PBA_2.3 SAME Revision (10-11-2001) 1 Original Main PCB with Sage A3 New Main PCB with Sage A1 Revision (10-11-2001) 2

File name MON01-010.pdf

SERVICE BULLETIN Product: LCD MONITOR Model: PC21PBSS, PC24PBSS SyncMaster 210T, SyncMaster 240T Bulletin No.: MON01-010 (01-C/M-E0042) Bulletin Date: September 24, 2001 ECN Date: September 24, 2001 SUBJECT: Compatibility problem with Canopus SPECTRA X20 Video card Background: The SyncMaster 210T and 240T LCD monitors have a compatibility problem with some video cards, Canopus SPECTRA X20 to name one of them. The monitor will display lit pixels in the shape of the letter "L" on center of LCD and will disable all function keys. This symptom occurs when the PC is powered off after windows is shut down. The Spectra X20 video cards will generate an abnormal sync when windows shut down. Cause: EPROM Program implemented before September 6, 2001 for the SyncMaster 210T. EPROM Program implemented before September 6, 2001 for the SyncMaster 240T. Replace the Main board or EPROM with the standards below: SM210T: Replace EPROM IC403 with version 1.2 (applied as of July 27, 2001) or later. SM240T: Replace the main board if EPROM version is 1.0 or 1.1. ("A3" mark on Sage image-scaler IC). See Page 2. Replace EEPROM IC403 if version is 2.0 to 2.2 Samsung has implemented a new version EPROM from Sep.06, 2001 with Version 2.4 or later. Application Date: September 6, 2001 Solution: ORIGINAL Location No. 210T (IC403) 240T (IC403) 240T MAIN PBA NEW Description ASSYMAIN/AUTO; PC21PBA_1.1 ASSYMAIN/AUTO; PC21PBA_2.3 ASSYPCB/ST; PC24PS Part No. BN91-00028B BN91-00027C BN94-00060C Part No. BN91-00028B BN91-00027C SAME Description ASSYMAIN/AUTO; PC21PBA_1.2 ASSYMAIN/AUTO; PC21PBA_2.4 SAME Revision (10-11-2001) 1 Original Main PCB with Sage A3 New Main PCB with Sage A1 Revision (10-11-2001) 2