LCD-Monitor Chassis LPE19DS Model 932BF SERVICE Manual TFT-LCD Monitor Fashion Feature -Integrated UI applied -Lustrous -Ball Hinge -Response Time Accelerator -Dynamic Contrast -Connectivity : Analog (15p Dsub), Dual (24p DVI-D) -Power Consumption : 38W -DPMS : under 1 W (230Vac)
Samsung Electronics Co.,Ltd. -This Service Manual is a property of Samsung 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Electronics Co., Ltd. Gyeonggi-Do, Korea, 443-742 Any unauthorized use of Manual can be punished Printed in Korea under applicable International and/or domestic P/N : law.
10 Operating Instructions and Installation 10 Operating Instructions and Installation 10-1 Front 1. Menu button 2) Text Opens the OSD menu. Also use to exit the OSD For documentations or works involving heavy text. menu or return to the previous menu. 3) Internet For working with a mixture of images such as text 2.
10 Operating Instructions and Installation 2,3. Adjust buttons 5. AUTO button Adjust items in the menu. Use this button for auto adjustment. (Available in Analog mode only) 4. Enter button / SOURCE button Activates a highlighted menu item. / 6. Power button Push the 'SOURCE', then selects the video signal Use this button for turn the monitor on and off.
10 Operating Instructions and Installation 10-3 Connecting the monitor 1. Connect the power cord for your monitor to the power port on the back of the monitor. Plug the power cord for the monitor into a nearby outlet. 2-1. Using the D-sub (Analog) connector on the video card. Connect the signal cable to the 15-pin, D-sub connector on the back of your monitor.
10 Operating Instructions and Installation Memo 10-4...
11 Disassembly and Reassembly 11 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LS17PEA/LS19PEB TFT-LCD monitors. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 11-1 Disassembly Cautions: 1.
11 Disassembly and Reassembly Description Picture Description 4. Remove the marked parts from both sides of the front cover, as shown in the figure below. 5. Remove the marked part from the front cover, as shown in the figure below. Caution: Do not lift the front cover over position (1), which may cause damage to it.
11 Disassembly and Reassembly Description Picture Description 8. Disconnect cables. (LVDS, INVERTER and FUNCTION cable) LVDS INVERTER FUNCTION 9. Lift up the LCD panel. 10. LCD Panel 11-3...
11 Disassembly and Reassembly 설 설 명 사 사 진 설명 Description Picture Description 11.Remove screws. (17"=2 screws, 19"=4 screws) 12. Remove 5 screws. 13. Lift up the Bracket Support. 11-4...
11 Disassembly and Reassembly 설 설 명 사 사 진 설명 Description Picture Description 14. Lift up the Main PCB and IB Board. 15. Main PCB and IB Board 11-2 Reassembly Reassembly procedures are in the reverse order of disassembly procedures. 11-5...
11 Disassembly and Reassembly 11-3 Stand 11-3-1 Installing the Stand A: Monitor B: Connecting pin Caution When lifting up or moving the monitor, do not lift the monitor upside down while holding only the stand, as C: Stand this may cause the monitor to fall, leading to damage or personal injury.
11 Disassembly and Reassembly 설 설 명 사 사 진 설명 Description Picture Description 4. Turn the stand so ▽mark on the connecting pin is facing the front. 4. Check the connecting part between the monitor and the stand. 4. Tilt the monitor upwards at an angle of 5 ° to 10°...
11 Disassembly and Reassembly 11-3-2 Removing the Stand 설 설 명 사 사 진 설명 Description Picture Description 1. Place a soft cloth or cushion on the table and place the monitor with the front facing downwards. 2. Hold the monitor and lean the stand upwards. 3.
11 Disassembly and Reassembly 설 설 명 사 사 진 설명 Description Picture Description 5. Remove the connecting pin from the stand. 11-9...
11 Disassembly and Reassembly Memo 11-10...
3 Alignments and Adjustments 3 Alignments and Adjustments This section of the service manual explains how to use the DDC MANAGER JIG. This function is needed for AD board change and program memory (IC201) change. 3-1 Required Equipment The following equipment is necessary for adjusting the monitor: - Computer with Windows 95, Windows 98, Windows 2000, Windows XP or Windows NT.
3 Alignments and Adjustments 3-6 Service Function Spec. 3-6-1 How to Display Service Function OSD 1. The value for brightness and contrast should be changed to zero. 2. Within 5 seconds, press the (Enter/Source) key. 3. Service function OSD will be displayed. If you want to disable the service function OSD, you will have to power off.
3 Alignments and Adjustments 3-6-3 How to Control Service Function OSD -After change the panel or lamp, you must reset service function OSD. -The case of panel change After changeing the panel, press the menu key within 5 seconds,. Then, panel Ch. No increases one step and the panel time information is reset to zero. Simultaneously, other information is reset to zero (Upper/Lower lamp, Panel cycle).
3 Alignments and Adjustments 3-7 How to execute DDC 1. Open file. 2. Select Port #1. 3. Select DDC file. 4. Click, "Next" Button 5. Type in the monitor serial number and press Enter. *Repeat this step 2 to 5 times in digital inputs after the analog input.
3 Alignments and Adjustments 3-8 How to execute MCU Code 3-8-1 Program Setting - Config Setting 1. Set the options. -. Manufacture : MSTAR -. Device Type : TSUM16_ROM128K_ext_flash -. Communication Port : DSUB15 (Analog) -. External Memory : PMC25LV010E 2.
3 Alignments and Adjustments 3. Click 'Auto Program' button. 4. If Program and Verify is OK, turn off the hard power and than turn on again.
14 Reference Infomation 14 Reference Infomation 14-1 Technical Terms -TFT-LCD -Image Lock This means "Fineness adjustment " in LCD Monitor, (Thin film Transistor Liquid Crystal Display) ADC(Analog to Digital Converter) the features are "Fine" and "Coarse" This is a circuit that converts from analog signal to digital signals.
14 Reference Infomation -EDID -RTA(Response Time Accelerator) A function that accelerates the response speed of Extended Display Identification Data PC can recog- the panel so as to provide a sharper and more natu- nize the monitor information as Product data, ral video display.
14 Reference Infomation 14-2 Pin Assignments Sync 15-Pin D-Sub Signal Cable Connector Type Separate Composite Sync-on-green Pin No. Green Green Green + H/V Sync. Blue Blue Blue DDC Return (GND) DDC Return (GND) DDC Return (GND) GND-R GND-R GND-R GND-G GND-G GND-G GND-B...
14 Reference Infomation 14-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer- generated video signals. Table 14-1 Timing Chart VESA Mode VGA2/ VGA3/ 640/75 Hz 800/60 Hz 800/75 Hz 1024/60 Hz 1024/75 Hz 1280/60 Hz...
14 Reference Infomation 14-4 Preset Timing Modes -If the signal transferred from the computer is the same as the following Preset Timing Modes, the screen will be adjusted automatically. However, if the signal differs, the screen may go blank while the power LED is on.
4 Troubleshooting 4 Troubleshooting Notes: 1. Before troubleshooting, setup the PC 's display as below. • Resolution: 1280 x 1024 • H-frequency: 64 kHz • V-frequency: 60 Hz 2. If no picture appears, make sure the power cord is correctly connected. 3.
4 Troubleshooting 4-2 No Video (ANALOG) Check signal cable connection and power. X1 oscillate proprely? Replace or check related circuit. Is there R,G,B input at Check input part. R111,R114 and R118? Is there Hsync, Vsync waveform Check IC200 and related circuit. at Pin 32,33 of IC200? Does the output signal appear Check CN400 and related circuit.
4 Troubleshooting 4-3 No Video (DIGITAL) Check signal cable connection and power. Replace or check related circuit. X1 oscillate properly? Is there R, G, B input at Check input part. R100,R101,R102,R106 and R108? Does the output signal appear Check IC400 and related circuit. at Pin 17~20, 22~27 of CN400? Check the PANEL_EN signal at R222...
5 Exploded View & Parts List 5 Exploded View and Parts List -You can search for updated part codes through ITSELF web site. URL : http://itself. sec. samsung.co.kr 5-1 LS19PEDSFU/EDC Exploded View M0174 M0013 T0003 M0215 T0514 M0006 M0013...
1 Precautions 1 Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 1-1-1 Warnings For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and DC power jack before servicing.
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 conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.
1 Precautions 1-4 Installation Precautions 1. For safety reasons, more than two people are 6. Keep the antenna far away from any high-voltage required for carrying the product. cables and install it firmly. Contact with the highvoltage cable or the antenna falling over may 2.
13 Circuit Descriptions 13 Circuit Descriptions 13-1 Overall Block Structure Power Tree 13-1-1 1. When the AD board is in DPMS state: 1.1 The IP has been designed so that it operates with a power consumption of less than 0.6W of. 1.2 The Scaler consumes power up to 37mA 1.3 The power to the panel is switched off 2.
13 Circuit Descriptions Main Board Parts 13-1-2 1. Inverter: A conversion device that converts DC 6. SCALER & EEPROM: I2C is a two-way serial rated voltage/current to high ones necessary bus of two lines that supports communications for the panel lamp. across the integrated circuits as well as between FLASH and EEPROM.
13 Circuit Descriptions 13-1-3 IP BOARD BLOCK(POWER) Parts 13-1-4 IP BOARD BLOCK( INVERTER ) Parts 13-3...
13 Circuit Descriptions 13-1-5 IP BOARD ( inverter ) PROTECTION Parts BIZET INVERTER CONTROLER FAN7310 have 2-way of the PROTECTION MODE. 1. OVP[Over Voltage Protection] : If the Voltage of the series capacitors C10 & C15 is over the 2.0V, the Inverter latched-off.[See the Picture1] 2.
13 Circuit Descriptions 13-2 Trouble Shooting 13-2-1 IP BOARD(Power) Power On Change FUSE Check fuse 3 pin of FDM0565R Check the Vcc system Vcc system in normal: HIGH 1 pin of FDM0565R Check the drain system Check the main switching Normal: Switching Check the Check the...
13 Circuit Descriptions 13-2-1 IP BOARD(Inverter) Power On Check the power system Check the 13V line Check the IC drive 1 and 2 pins of FDM0565R Check MOSFET Check Protection Normal:0.6V~0.8V 1 and 2 pins of FDM0565R Check the OVP and OLR Check Protection circuits Normal:0.6V~0.8V...