Acer P221W - Safety and Comfort Information; Plug Disconnecting Device Caution; Outlet Accessibility Caution; General Safety Warnings

Acer Service Manual
2
Table of Contents
CHAPTER 1- PRECAUTIONS & SAFETY NOTICES..................................................................................................................... 3
1. SAFETY PRECAUTIONS............................................................................................................................................................. 3
2. PRODUCT SAFETY NOTICE ...................................................................................................................................................... 3
3. SERVICE NOTES.......................................................................................................................................................................... 3
CHAPTER 2- SERVICE TOOLS & EQUIPMENT REQUIRED ..................................................................................................... 4
CHAPTER 3- CIRCUIT THEORY ...................................................................................................................................................... 5
2. INTERFACE BOARD DIAGRAM ................................................................................................................................................... 5
3. ELECTRONIC CIRCUIT THEORY.......................................................................................................................................................... 6
CHAPTER 4- DISASSEMBLY & ASSEMBLY ...................................................................ERROR! BOOKMARK NOT DEFINED.
1. EXPLODED DIAGRAM ................................................................................................................ ERROR! BOOKMARK NOT DEFINED.
2. DISASSEMBLY BLOCK ............................................................................................................... ERROR! BOOKMARK NOT DEFINED.
3. ASSEMBLY BLOCK..................................................................................................................... ERROR! BOOKMARK NOT DEFINED.
CHAPTER 5- TEST AND ADJUSTMENT ........................................................................................................................................ 12
1. GENERAL POINTS ............................................................................................................................................................... 12
1.1 TEST EQUIPMENT OR TOOL................................................................................................................................................ 12
1.2 PRESET TEST PATTERN ....................................................................................................................................................... 12
1.3 AC INPUT............................................................................................................................................................................. 12
1.4 OBSERVATION DISTANCE .................................................................................................................................................... 12
1.5 KEY FUNCTION DESCRIPTION ............................................................................................................................................ 12
1.6 BURN-IN (AGING) PATTERN ................................................................................................................................................ 13
1.7 WARM UP ............................................................................................................................................................................ 13
2. INPUT SIGNAL...................................................................................................................................................................... 13
2.1 VIDEO SIGNAL INPUT .......................................................................................................................................................... 13
3. FUNCTION CHECK ............................................................................................................................................................. 14
3.1 OSD FUNCTION TEST ......................................................................................................................................................... 14
3.2 SCREEN PICTURE CHECK ................................................................................................................................................... 15
3.3 AUTO COLOR BALANCE...................................................................................................................................................... 15
3.4 TIMING CHECK ................................................................................................................................................................... 15
3.5 POWER CONSUMPTION FUNCTION TEST............................................................................................................................ 15
3.6 VGA CABLE DETECT TEST................................................................................................................................................. 15
3.7 HI-POT TEST........................................................................................................................................................................ 15
3.8 GROUNDING TEST ............................................................................................................................................................... 15
3.9 BUMPING TEST .................................................................................................................................................................... 15
4. DISPLAY CHECK.................................................................................................................................................................. 15
4.1 PANEL FLICKER CHECK...................................................................................................................................................... 15
4.2 PANEL DEFECT INSPECTION ............................................................................................................................................... 16
5. PICTURE CHECK................................................................................................................................................................. 17
5.1 CHECK BRIGHTNESS UNIFORMITY...................................................................................................................................... 17
5.2 COLOR TEMPERATURE CHECK .......................................................................................................................................... 18
5.3 BRIGHTNESS OUT (VIDEO SIGNAL INPUT 700MV ± 2%).................................................................................................... 18
5.4 DDC DATA CHECK .............................................................................................................................................................. 18
6. AUDIO CHECK.......................................................................................................................................................................... 19
6.1 AUDIO SOUND CHECK......................................................................................................................................................... 19
6.2 AUDIO CONTROL TEST......................................................................................................................................................... 19
CHAPTER 6- TROUBLE SHOOTING.............................................................................................................................................. 20
ATTACHMENT 1- BILL OF MATERIAL......................................................................................................................................... 26
ATTACHMENT 2- SCHEMATIC....................................................................................................................................................... 27
ATTACHMENT 3- PCB LAYOUT ..................................................................................................................................................... 36