Samsung TFT-LCD Monitor
Chassis DI19PS
Model 193P
SERVICE Manual
TFT-LCD MONITOR
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.
- When the chassis is operating, semiconductor heatsinks are potential shock hazards.
1-1-2 Servicing the LCD Monitor
- When servicing the LCD Monitor, remove the static charge by connecting a 10k ohm resistor in series with an insulated wire (such as a test probe) between the chassis and the anode lead. (Disconnect the AC line cord from the AC outlet.)
- It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of 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 chassis and other metal parts in the monitor.
- Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc.
- Leakage Current Hot Check (Figure 1-1):
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).
Figure 1-1: Leakage Current Test Circuit Description: A diagram shows a test setup with a 'DEVICE UNDER TEST' connected via a 2-WIRE CORD to a 'LEAKAGE CURRENT TESTER'. The tester is connected to 'EARTH GROUND'. The diagram indicates testing all exposed metal surfaces and also testing with the plug reversed. A note states 'READING SHOULD NOT BE ABOVE 0.5mA'.
- With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit's AC switch first 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 safety-related 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 identified 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, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate.
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.
1-2-1 General Servicing Precautions
- Always unplug the unit's AC power cord from the AC power source and disconnect the DC Power Jack before 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 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 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, input terminals and earphone jacks).
- 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 the blades 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; always remove the instrument's ground lead last.
1-3 Electrostatically Sensitive Devices (ESD) 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 field-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 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 accumulation of an electrostatic charge.
- Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESDs.
- Use only a grounded-tip soldering iron to solder or desolder ESDs.
- Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ESDs.
- Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs 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 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, or lifting your foot from a carpeted floor can generate enough static electricity to damage an ESD.
Product Specifications
2-1 Specifications
| Item | Description |
|---|---|
| LCD Panel | TFT-LCD panel, RGB vertical stripe, normaly black, 19-Inch viewable, 0.294 mm pixel pitch |
| Scanning Frequency | Horizontal: 30 kHz ~ 81kHz (Automatic) Vertical: 56 Hz ~ 75 Hz (Automatic) |
| Display Colors | 16.7 Million colors |
| Maximum Resolution | Horizontal: 1280 Pixels Vertical: 1024 Pixels |
| Input Video Signal | Analog, 0.7 Vp-p ± 1% positive at 75 Ω, internally terminated, Digital, TMDS |
| Input Sync Signal | Type: Seperate H/V sync, Composite H/V, Sync-on-Green (option), automatic synchronization without external switch of sync type Level: TTL level |
| Maximum Pixel Clock rate | 135 MHz |
| Active Display (H / V) | 376.32 (H)mm / 301.056 (V)mm |
| AC power voltage & Frequency | AC 100 ~ 240 VAC ( + / - 10%), 60 / 50 Hz ~ ± 3 Hz |
| Power Consumption | 40 W (MAX) |
| Dimensions(W x D x H) | Set: 16.7 x 1.7 x 13.8 Inches (423 x 44.2 x 351.5 mm) Set: 16.7 x 9.3 x 16.2 Inches (423 x 236.2 x 412.7 mm) State of stand installed Set: 16.7 x 4.1 x 13.8 Inches (423 x 103 x 351.5 mm) State of stand folded Package: 20.6 x 17.8 x 7.2 Inches (524 x 453 x 183 mm) |
| Weight | Set: 7.1 kg (15.7 lbs) Package: 9.4 kg (20.7 lbs) |
| Environmental Considerations | Operating Temperature: 50 °F ~ 104 °F (10 °C ~ 40 °C) Operating Humidity: 10 % ~ 80 % Storage Temperature: 13 °F to 113 °F (-25 °C ~ 45 °C) Storage Humidity: 5 % ~ 95 % |
Designs and specifications are subject to change without prior notice.
2-2 Pin Assignments
15-Pin Signal Cable Connector
| Pin No. | Sync Type | Separate | Composite | Sync-on-green (Option) |
|---|---|---|---|---|
| 1 | Red | Red | Red | |
| 2 | Green | Green | Green + H/V Sync | |
| 3 | Blue | Blue | Blue | |
| 4 | GND | GND | GND | |
| 5 | GND (DDC Return) | GND (DDC Return) | GND (DDC Return) | |
| 6 | GND-R | GND-R | GND-R | |
| 7 | GND-G | GND-G | GND-G | |
| 8 | GND-B | GND-B | GND-B | |
| 9 | No Connection | No Connection | Not Used | |
| 10 | GND-Sync/Self Test | GND-Sync/Self Test | GND-Sync/Self Test | |
| 11 | GND | GND | GND | |
| 12 | DDC Data | DDC Data | DDC Data | |
| 13 | H-Sync | H/V-Sync | Not Used | |
| 14 | V-Sync | Not Used | Not Used | |
| 15 | DDC Data | DDC Data | DDC Data |
24P DVI-D
| Pin No. | Sync Type | ||
|---|---|---|---|
| 1 | Rx2- | 13 | No Connection |
| 2 | Rx2+ | 14 | +5V_M |
| 3 | GND | 15 | Self Raster |
| 4 | No Connection | 16 | +5V_M |
| 5 | No Connection | 17 | Rx0- |
| 6 | DDC Clock (SCL) | 18 | Rx0+ |
| 7 | DDC Data (SDA) | 19 | NC |
| 8 | NC | 20 | No Connection |
| 9 | Rx1- | 21 | No Connection |
| 10 | Rx1+ | 22 | NC |
| 11 | NC | 23 | RxC+ |
| 12 | No Connection | 24 | RxC- |
2-3 Timing Chart
This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals.
Table 2-1 Timing Chart
| Mode | IBM | VESA | |||||
|---|---|---|---|---|---|---|---|
| VGA1/70 Hz 640 x 350 |
VGA2/70 Hz 720 x 400 |
VGA3/60 Hz 640 x 480 |
640/72 Hz 640 x 480 |
640/75 Hz 640 x 480 |
800/56 Hz 800 x 600 |
800/60 Hz 800 x 600 |
|
| fH (kHz) | 31.469 | 31.469 | 31.469 | 37.861 | 37.500 | 35.156 | 37.879 |
| A µsec | 31.778 | 31.777 | 31.778 | 26.413 | 26.667 | 28.444 | 26.400 |
| B µsec | 3.813 | 3.813 | 3.813 | 1.270 | 2.032 | 2.000 | 3.200 |
| C µsec | 1.589 | 1.589 | 1.589 | 3.810 | 3.810 | 3.556 | 2.200 |
| D µsec | 26.058 | 26.058 | 26.058 | 20.825 | 20.317 | 22.222 | 20.000 |
| E µsec | 0.318 | 0.318 | 0.318 | 0.508 | 0.508 | 0.667 | 1.000 |
| fV (Hz) | 70.086 | 70.087 | 59.940 | 72.809 | 75.000 | 56.250 | 60.317 |
| O msec | 14.268 | 14.268 | 16.683 | 13.735 | 13.333 | 17.778 | 16.579 |
| P msec | 0.064 | 0.064 | 0.064 | 0.079 | 0.080 | 0.057 | 0.106 |
| Q msec | 1.716 | 0.858 | 0.794 | 0.528 | 0.427 | 0.626 | 0.607 |
| R msec | 11.504 | 13.155 | 15.761 | 13.100 | 12.800 | 17.067 | 15.840 |
| S msec | 0.985 | 0.191 | 0.064 | 0.026 | 0.027 | 0.028 | 0.026 |
| Clock Frequency (MHz) | 25.175 | 28.322 | 25.175 | 31.500 | 31.500 | 36.000 | 40.000 |
| Polarity H.Sync | Positive | Negative | Negative | Negative | Negative | Positive | Positive |
| V.Sync | Negative | Positive | Negative | Negative | Negative | Negative | Positive |
| Remark | Separate | Separate | Separate | Separate | Separate | Separate | Separate |
Sync Diagrams Description:
Two diagrams illustrate sync signals. The 'Separate Sync' diagram shows horizontal and vertical sync pulses (labeled A, B, C, D, E). The 'H/V Composite Sync' diagram shows a combined sync signal (labeled A, B, P, Q, R, S, O).
Table 2-2 Timing Chart
| Mode | IBM | VESA | |||||||
|---|---|---|---|---|---|---|---|---|---|
| VGA2/ 70 Hz 720 x 400 |
VGA3/ 60 Hz 640 x 480 |
640/75 Hz 640 x 480 |
800/60 Hz 800 x 600 |
800/75 Hz 800 x 600 |
1024/60 Hz 1024 x 768 |
1024/75 Hz 1024 x 768 |
1280/60 Hz 1280 x 1024 (Analog) |
1280/75 Hz 1280 x 1024 (Analog) |
|
| fH (kHz) | 31.469 | 31.469 | 37.500 | 37.879 | 46.875 | 48.363 | 60.023 | 63.981 | 79.975 |
| A µsec | 31.777 | 31.778 | 26.667 | 26.400 | 21.333 | 20.677 | 16.660 | 11.852 | 12.504 |
| B µsec | 3.813 | 3.813 | 2.032 | 3.200 | 1.616 | 2.092 | 1.219 | 1.037 | 1.067 |
| C µsec | 1.589 | 1.589 | 3.810 | 2.200 | 3.232 | 2.462 | 2.235 | 2.296 | 1.837 |
| D µsec | 26.058 | 26.058 | 20.317 | 20.000 | 16.162 | 15.754 | 13.003 | 9.259 | 9.481 |
| E µsec | 0.318 | 0.318 | 0.508 | 0.000 | 0.323 | 0.369 | 0.203 | 0.000 | 0.119 |
| fV (Hz) | 70.087 | 59.940 | 75.000 | 60.317 | 75.000 | 60.004 | 75.029 | 60.020 | 75.025 |
| O msec | 14.268 | 16.683 | 13.333 | 16.579 | 13.333 | 16.666 | 13.328 | 16.005 | 13.329 |
| P msec | 0.064 | 0.064 | 0.080 | 0.106 | 0.064 | 0.124 | 0.050 | 0.047 | 0.038 |
| Q msec | 0.858 | 0.794 | 0.427 | 0.607 | 0.448 | 0.600 | 0.466 | 0.594 | 0.475 |
| R msec | 13.155 | 15.761 | 12.800 | 15.840 | 12.800 | 15.880 | 12.795 | 15.630 | 12.804 |
| S msec | 0.191 | 0.064 | 0.027 | 0.0261 | 0.021 | 0.062 | 0.017 | 0.016 | 0.013 |
| Clock Freq. (MHz) | 28.322 | 26.175 | 31.500 | 40.000 | 49.500 | 75.000 | 78.750 | 108.000 | 135.000 |
| Polarity H.Sync | Negative | Negative | Negative | Positive | Positive | Negative | Positive | Positive | Positive |
| V.Sync | Positive | Negative | Negative | Positive | Positive | Negative | Positive | Positive | Positive |
| Remark | Separate | Separate | Separate | Separate | Separate | Separate | Separate | Separate | Separate |
Sync Diagrams Description:
Two diagrams illustrate sync signals. The 'Separate Sync' diagram shows horizontal and vertical sync pulses (labeled A, B, C, D, E). The 'H/V Composite Sync' diagram shows a combined sync signal (labeled A, B, P, Q, R, S, O).
Disassembly and Reassembly
This section of the service manual describes the disassembly and reassembly procedures for the DI19PS monitor.
WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components.
3-1 Disassembly
Cautions: 1. Disconnect the monitor from the power source before disassembly.
2. Follow these directions carefully; never use metal instruments to pry apart the cabinet.
3. R/Cover opening jig: BH81-00001A
- Place monitor face down on cushioned table. Remove 1 screw from grip on the stand and remove back cover from the stand.
- Disconnect cable and remove 4 screws from the stand.
- Lift up the stand and insert the opening drive into the grooves at each side and press until it clicks.
- Disconnect function cable and remove 12 screws from the shield.
- Remove the cover front and remove 4 screws from the panel.
- Remove shield from the panel and disconnect inverter cabel, LVDS cable from the main boards.
- Remove main board from the panel.
3-2 Replacement Order of Lamp Assemblies
- After confirming there is nothing on the desk, turn the LCD module over and put it on a flat desk set to the ground.
- Remove 2 screws for the lamp unit.
- Slide the lamp unit. Please take out the lamp units from the LCD module.
- Please fix the new lamp units on the LCD module: opposite process 2 and 3.
3-3 Reassembly
Reassembly procedures are in the reverse order of disassembly procedures.
Alignment & Adjustments
This section illustrates jig installation required for DDC EDID input. DDC EDID input is necessary to adjust black level and R, G, B for FPD when replacing AD board. This section also explains how to adjust OSD when replacing panel or lamp.
4-1 Required Equipment
The following equipment is required for monitor adjustment:
- Computer with Windows 95, Windows 98, or NT
- MTI-2031 DDC Manager Jig
4-2 Automatic Color Adjustment
Use 16-grey or black and white pattern for video input.
- With the monitor powered off, press power key and hold until it beeps 10 times.
- Power the monitor on for screen display.
- Press the power key and hold until the following figure displays.
Figure 4-1 Description: An On-Screen Display (OSD) menu is shown with options like 'Auto Source Sel.', 'Auto Adjustment', 'Beeper On', 'Auto Power En.', 'Exit', 'Auto Color', 'PixelShift On', 'Information'. The bottom line shows '80.0 kHz 75 Hz NN'.
- Press power key and hold until Auto Color is selected.
- Press power key again to execute Auto Color.
4-3 DDC EDID Data Input
- Input DDC EDID data when replacing AD PCB.
- Receive/Download the proper DDC file for the model from HQ quality control department. Install the below jig (Figure 4-3) and enter the data.
Figure 4-2 Description: A diagram shows a setup connecting a 'Computer' via a 'Parallel Connector (25P Cable)' to an 'MTI-2031 DDC Manager'. The DDC Manager is then connected to a 'Monitor needing adjustment' via a 'Connect Monitor Signal Cable'.
4-4 OSD Adjustment for Panel Replacement
- Repeat 1, 2 and 3 in above 4-2.
- Press the key and hold until Information is selected.
Figure 4-3 Description: Shows the same OSD menu as Figure 4-1, with 'Information' highlighted.
- Press the key again to execute Information.
- Press the key and hold until Panel is selected.
Figure 4-4 Description: Shows an OSD screen displaying 'On Time(Hr): 105', 'Panel Cycle: 41 48', and then details for 'Panel', 'U Lamp', 'L Lamp' with corresponding time values and 'Cancel and Exit', 'Save and Exit' options. It also shows 'M-DI17PS0CA-0915' and 'Checksum: D19C'.
- Press the key again to change information for Panel.
- Select Save and Exit to save the change settings and exit from Service Mode. Select Cancel and Exit to cancel the change settings and exit from Service Mode.
Figure 4-5 & 4-6 Descriptions: Show the OSD screen from Figure 4-4, illustrating the 'Save and Exit' and 'Cancel and Exit' options.
The below section explains the SVC function. Please read this information first for application.
4-5 How to Display Service Function OSD
- With the monitor powered off, press power key and hold until it beeps 10 times.
- Power the monitor on for screen display.
- Press the power key and hold until the following figure displays.
Figure 4-7 Description: Shows the OSD menu with 'Information' highlighted.
To exit from Service Function OSD, select ‘Exit'.
Service Function OSD includes:
- Panel Information
- Software version
- Micom Checksum
4-5-2 How to Abjust SVC Function OSD
- When pressing power key and holding with Panel selected, Panel, U Lamp, L Lamp, Cancel and Exit, and Save and Exit is selected in sequence.
Figure 4-8, 4-9, 4-10, 4-11 Descriptions: These figures show the progression of the OSD screen as the 'Panel', 'U Lamp', 'L Lamp' values are adjusted, leading to the 'Save and Exit' or 'Cancel and Exit' options.
4-5-3 How to Abjust SVC Function OSD
- Always adjust SVC Function OSD after replacing any panel or lamp.
- Panel Replacement
After replacing a panel, press the key and hold until Panel is selected. Press Panel shortly again. Ch.No of the Panel increases by 1 while panel time information (Time(Hr)) changes to '0'. At the same time, other information (U Lamp, L Lamp) changes to '0'.
Figure 4-13 Description: Shows the OSD screen after a panel replacement, with 'Panel' Ch.No potentially incremented and lamp times reset to '0'.
4-5-4 How to Adjust PixelShift
- PixelShift: On <-> Off
Figure 4-14 Description: Shows the OSD menu with 'PixelShift On' highlighted.
This function protects a displayed image from sticking when the same image is displayed for an extended period of time.
PixelShift On: 0x01 for EEPROM 0x2E
PixelShift Off: Others
Please see the below figure for movement path. It takes 4 minutes for 1-step movement. (32 steps = 128 minutes)
Figure 4-15 Description: A diagram illustrates a square path with steps labeled '4' and '8', indicating movement. It shows a 'start' point and arrows indicating movement directions and distances.
Location is reset when: Power is On or Off.
Image mode is changed.
User operates a key.
Location is not reset in Service Menu.
Note: When position is set to the minimum or maximum, it does not move smaller or larger.
Troubleshooting
Notes:
1. Before troubleshooting, setup the PC's display as below.
• Resolution: 1280 x 1024
• H-frequency: 48 kHz
• V-frequency: 60 Hz
2. If no picture appears, make sure the power cord is correctly connected.
3. Check the following circuits.
• No raster appears: SMPS PCB, Main PCB
• 14V develop but no screen: Main PCB
• 14V does not develop: SMPS PCB
4. State power off, if you push and hold the “Power Key” button for more than 5 seconds, with a “beep” sound, the monitor automatically turn back to the factory preset.
5-1 No Power
A flowchart guides troubleshooting for 'No Power' issues. It asks questions about DC voltage at specific pins (CN101, IC201, IC301) and the presence of a pulse at X101. Based on the answers ('Yes' or 'No'), it directs the user to check specific components (SMPS, IC104, IC201, IC301, X101, function key) or replace IC301.
5-2 No Video
A flowchart guides troubleshooting for 'No Video' issues when the power indicator is green. It checks for DC 5V at CN401, pulses at IC401 (pins 74/75, 122, 126/127), and pulses at IC101 (pins 6/8). Based on the results, it suggests checking related circuits, replacing components like IC205, IC401, X401, IC101, CN101, or the LCD panel.
Waveforms Description:
The document displays 8 waveform images (1-8) captured using an oscilloscope, showing signal patterns at various test points during troubleshooting. Each waveform image includes details like date, time, time scale, voltage scale, trigger information, and specific measurements.
Exploded View & Parts List
You can search for updated part codes through ITSELF web site.
URL: http://itself.sec.samsung.co.kr/
Exploded View Description: An illustration shows the monitor disassembled into its main components, with numbered labels pointing to parts like the LCD panel, rear cover, stand, front cover, shield, and various screws. A table lists these parts with their corresponding unit code, part name, code number, specification, quantity, and remark.
Parts List Summary:
| UNIT CODE NO. | PART NAME | CODE NO. | SPEC. | Q'TY | REMARK |
|---|---|---|---|---|---|
| D119PS | ASSYLCD-E18 | BN07-00145A | LTM190E4-L01 | 1 | SA |
| ASSY STAND | BN96-00779C | AL | 1 | SA | |
| COVER-REAR | BN63-01093A | ABS HB WH12 | 1 | SA | |
| ASSY-PBA | BN91-00769F | D119PS | 1 | SA | |
| ASS'Y SHIELD | BN96-00974A | SECC T1.0 | 1 | SNA | |
| ASS'Y COVER-FRONT | BN96-00932A | AL | 1 | SA | |
| 12 | SCREW-TAPTITE | 6001-001336 | CH,+,M3,L5.5,ZPC(YEL) | 4 | SA |
| 11 | SCREW-TAPTITE | 6001-000347 | FH,+, M3, L5, Ni | 1 | S |
| 10 | SCREW-TAPTITE | 6003-001238 | FH,+,S,M4, L8 | 4 | SA |
| 9 | SCREW-TAPTITE | 6003-000008 | BH,+,S,M3, L4, ZPC3 | 4 | SA |
| 8 | SCREW-TAPTITE | 6003-000282 | BH,+, B,M3, L8 | 8 | SA |
| 7 | ASS'Y REAR-CAP | BN96-00890A | ABS HB WH12 | 1 | SNA |
(Note: The full parts list is extensive and contains hundreds of entries for various screws, capacitors, resistors, ICs, etc., detailing their part numbers, specifications, and quantities.)
Electrical Parts List
You can search for updated part codes through ITSELF web site.
URL: http://itself.sec.samsung.co.kr/
Main PCB Parts (7-1-1) Summary: This section lists components on the Main PCB, including ASSYPCBMAIN-E18, FLUX, THINNER, FASTENER-PEM/NUT, GASKET, CONNECTOR-HEADER, BUZZER-PIEZO, ASSYMICOM, IC-MICROCONTROLLER, A/SMICOM, ASSYSMD-E18, and numerous capacitors (C101-C514), diodes, resistors, and other integrated circuits. Each entry provides Level, Loc. No., Code No., Description, Specification, and Remarks.
Other Parts (7-1-2) Summary: This section lists various other parts such as ASSYSTAND, ASSYSTANDP, TAPE-FILAMENT, SCREW-MACHINE, SCREW-TAPTITE, BOLT-SOCKET, CABLETIE, CBF-STANDCABLE, FOOT-RUBBER, STAND components (REARBODY, NECKTOP, FRONTBODY, REARDECO, HINGECOVER, BOTTOM, JACKCOVER, SWIVEL, SWIVELCOVER, COVERAL, BOTTOMAL, GUIDEAL), GASKET, COVER-REARCAPBOTTOM, COVER-REARCAPSUB, SHEET-ACETAL, PROTECTOR-TAPE, ASSYMISCP-HINGE, ASSYMISCP-PIVOTHINGE, ASSYCOVERREAR, COVER-REAR, ASSYCOVERFRONT, ASSYCOVERP-FRONT, SCREW-TAPTITE, HOLDER-COVERLOCK, COVER-FRONT, COVER-MIDDLE, SHEET-PROTECT, DECORATION-LED, KNOB-FUNCTION, LABEL-TC003, RUBBER-PROTECT, ASSYBOARDP-FUNCTION, ASSYLCD-E18, LCD, ASSYMISC-ADAPTOR, ADAPTOR, ASSYCHASSIS-E18, LEADCONNECTOR, INVERTER, HOLDER-PCB, ASSYSHIELD, SCREW-TAPTITE, TAPE-FILAMENT, ASSYMISCP-SHIELDPCB, LABEL-00,FOOT-RUBBER, SHIELD-PCB, ASSYP/MATERIAL, TAPE-OPPMASKING, BAGPE, BAGROLL, BAGWRAPPING, PAD-PACKING-EDGE, PACKING-PADBOTTOM, BAG-AIR, LABELSHIPPING, PAD-PALLETCOVER, CUSHION-EPE, PALLET-PACKING, CUSHION-L,R, ASSYMISCP-WALLMOUNTING, BRACKET-WALLFRONT, BRACKET-WALLREAR, BRACKET-WALLMOUNT, MANUALINSTALL-CARD, ASSYMISCP-SCREW, ASSYBOX, LABELBOX-01, UNIT-HANDLE/PACKING, LEVER-TOP, LEVER-BOTTOM, BOX, ASSYLABEL, LABEL-01, BARCODE, LABELRATING-01, ASSYACCESSORY, CBFSIGNAL-DVI(D), ASSYACCESSORY, TAPE-OPPMASKING, BAGPE, CBFPOWERCORD, MANUAL-03, CARD-BLOCWARRANTY-09, CARD-01, CBFSIGNAL, ASSYMANUALP-00,IB+QSG, MANUAL-01, S/WDRIVER-00,IB. The list is extensive, containing hundreds of items with their respective part codes and specifications.
(Note: The full electrical parts list is extremely extensive, detailing hundreds of resistors, capacitors, diodes, transistors, ICs, connectors, crystals, and other components with their specific part numbers, values, and package types. It is impractical to list every single item here.)
Block Diagram
Description: The block diagram illustrates the main functional blocks of the monitor and their interconnections. Key blocks include: (PC) DIGITAL input signals (RX2+, RX2-, RX1+, RX1-, RX0+, RX0-, RXC+, RXC-), TMDS, ADC/IMAGE SCALER/LVDS (MST9131E), MICOM, Function PBA, and LCD PANEL. Input signals also include (PC) ANALOG signals (R, G, B, H-sync, V-sync). The AC/DC Adapter provides +14V. The MICOM operates at 14.318MHz and 12MHz.
Wiring Diagram
Description: The wiring diagram shows the connectivity between the MAIN BOARD and various connectors (CN101, CN401, CN102, CN501, CN502). It details the pin assignments for each connector, including power (+14VCC, +5V_PANEL, DVI +5V), ground (GND), signal lines (VSYNC_IN, HSYNC_IN, A_DDC_SDA, A_DDC_SCL, CHK_DSUB, CHK_DVI, RX signals, etc.), and control signals (POWER_KEY, DPMS_ON).
Schematic Diagrams
Description: The schematic diagrams provide detailed circuit layouts for various sections of the monitor. They show the interconnections of components like IC301 (NT68F63LPD2), IC101 (MC74F14D), IC401 (MST9131e), IC102 (AT24C02N-10SC), IC528 (AT24C02N-10SC), and various resistors, capacitors, diodes, and transistors. The diagrams illustrate power supply lines (+5V, +3.3V, +2.5V, +14V), signal paths, DDC communication lines, and control signals. Waveform diagrams (1-8) are also included, showing oscilloscope readings for specific test points.
Panel Description
This section is not explicitly detailed in the provided OCR text, but typically would describe the specifications and characteristics of the LCD panel used in the monitor.
