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Acer P203 P203W LCD Service Guide - Page 41

Schematics, Acer_lcd_p203w

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6.9 ACER_LCD_P203W_SCHEMATICS_FUNCTION _KEY 1 2 3 A 4 5 6 7 B P601 1 2 73 4 C 85 6 JWT-CN125WR0-6PS D R601 R600 R602 R603 R604 100 100 56K_1% 30K_1% 15K_1% R605 R606 R607 56K_1% 30K_1% 15K_1% C601 0.1uF C602 0.1uF E F G 1 2 3 4 5 6 7 8 9 10 11 12 13 Y B D601 LED LEDBLUE 1 3 2 4 A LEDORANGE Menu KEY S604 SW PUSHBUTTON B E KEY S606 SW PUSHBUTTON C AUTO/EXIT KEY S605 D SW PUSHBUTTON POWER KEY S601 SW PUSHBUTTON E LEFT KEY S603 SW PUSHBUTTON F RIGHT KEY S602 G SW PUSHBUTTON 8 9 10 11 12 13 PCB No. 6832190200P01 ACER P203W 40 Go to cover page

Section	Page
Cover page	1
1. Product Specification	3
1.1 SCOPE	3
1.2 GENERAL REQUIREMENTS	3
1.3 ELECTRICAL	3
1.4 PANEL ELECTRICAL	7
1.5 Optical Characteristics	8
2 OSD Menu	9
2.1 MAIN OSD MENU	9
3. Exploded Diagram	11
3.1 Packing Exploded Diagram	11
3.2 Product Exploded Diagram	12
4. Assembly and Disassembly Procedures	13
4.1 Assembly procedures:	13
4.2 Disassembly procedures	17
5. Troubleshooting	21
5.1 No.display of screen (Screen is black, color of LED isamber)	21
5.2 Nothing display on screen (screen is black, color of LED isblue)	22
5.3 Checking the back light unit	24
5.4 Abnormal screen for VGA	25
5.5 Abnormal screen (For the DVI)	25
5.6 Abnormal OSM display adjust problem	27
5.7 Abnormal plug and play operation for VGA	28
5.8 Abnormal plug and play operation (For the DVI)	29
5.9 Checking the interface circuit of sync signal	30
5.10 Checking the resolution change IC movement	31
5.11 Checking the DC/DC converter circuit	32
6. Schematics and Layouts:	33
6.1 ACER_LCD_P203W_SCHEMATICS_BLOCK DIAGRAM	33
6.2 ACER_LCD_P203W_SCHEMATICS_POWER BOARD	34
6.3 ACER _ _LCD_P203W SCHEMATICS_INTERFACE_TOP	34
6.4 ACER_LCD_P203W_SCHEMATICS_INTERFACE POWER	35
6.5 ACER_LCD_P203W_SCHEMATICS_INTERFACE BD_VGA & DDC INTERFACE	37
6.6 ACER_LCD_P203W_SCHEMATICS_INTERFACE BD_DVI & DDC INTERFACE	38
6.7 ACER_LCD_P203W_SCHEMATICS_INTERFACE BD_SCALER_GM5726H	38
6.8 ACER_LCD_P203W_SCHEMATICS_INTERFACE BD_KEY & PANEL INTERFACE	39
6.9 ACER_LCD_P203W_SCHEMATICS_FUNCTION _KEY	41
6.10 ACER_LCD_P203W _LAYOUTS_POWER BOARD	42
6.11 ACER_LCD_P203W LAYOUTS__ YOUTS_INTERFACE BOARD	43

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