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 (READING SHOULD circuit board. NOT BE ABOVE 0.5mA) Disconnect the AC power and DC Power Jack before servicing.
Page 3
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.
Page 5
2 Product Specifications 2-2 Pin Assignments Sync Type Separate H/V Composite H/V Sync-on-green Pin No. Green Green Green + H/V Sync. Blue Blue Blue GND (DDC Return) GND (DDC Return) GND (DDC Return) GND-Red GND-Red GND-Red GND-Green GND-Green GND-Green GND-Blue GND-Blue GND-Blue No Connection...
Page 6
2 Product Specifications 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 VESA VGA2/ VGA3/ 640/75 Hz 640/85 Hz 800/75 Hz 800/85 Hz 1024/60Hz 1024/75Hz...
3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the ES15A*/ES17A* 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.
Page 9
3 Disassembly and Reassembly 2. Push down the stopper and slide the lamp unit. 3. Please take out the lamp units from the LCD module. 4. Please fix the new lamp units on the LCD module : opposite process 2 and 3 Replacement of lamp unit should be done at the power off state and recommended clean bench condition.
Page 10
4 Alignments and Adjustments 4-1 General Alignment Instuction 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 specified test equipment or its equivalent. 3.
Page 11
4 Alignments and Adjustments Memo ES15A*/ES17A*...
5 Troubleshooting 5-1 No Power Does proper DC 14 V appear at Check SMPS PCB and Adapter. DC jack connected to CN801? Does proper DC 5 V appear at Check IC803. Pin 1 of IC803? Does proper DC 14V appear at Check IC803.
Page 13
5 Troubleshooting 5-2 No Video (PC Signal) Power indicator is green. Does the signal appear at C106, C107, C108 Check CN100. of R, G, B input? Does the clock pulse Check X100 and related circuit of X100. appear at X100? Does the clock pulse appear at Check related circuit of IC102.
Page 14
5 Troubleshooting 5-3 No Picture (TV, Video, S-Video, Scart Video) Check Pin 71, 72 (S-Video) Check the CN806 (Tuner) and the and Pin 73 (VCR) and Pin 74 CN200 (Scart connector) and the (Scart-Vin) and Pin 75 (RF-CVBS) CN802 (VCR connector). of IC201 (VPC3230D).
Page 15
5 Troubleshooting 5-4 No Sound Does the signal appear at Pin 67 (Tuner sound signal) and Check the CN803 (PC conector) and the Pin 57, 56 (PC sound) and Pin 51, 50 CN802 (VCR connector) and the CN200 (VCR sound) and Pin 48, 47 (Scart (Scart connector and the CN806 (Tuner).
Page 16
6 Exploded View and Parts List 6-1 ES15A* ES15A*/ES17A*...
9 Wiring Diagram KEY0 KEY1 CN600 CN601 KEY2 CN800 KEY3 KEY4 KEY5 KEY6 SPK OUT R + CN105 SPK OUT -R- SPK OUT L + CN104 SPK OUT L- CN804 AUDIO R IN AUDIO L IN VCR CVB S LED_GRN LED_RED CN802 CN805...