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Acer X223 X223W LCD Service Guide - Page 33

Acer, Interface_top, Lcd_x223w Schematics

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6.3 ACER_LCD_X223W_SCHEMATICS_INTERFACE_TOP 1 2 3 4 5 6 7 VGA & DDC INTERFACE RIN RIN GNDR VCC5V GNDR GIN GIN GNDG A VCC5V GNDG SOG BIN SOG BIN GNDB GNDB HSYNC HSYNC VSYNC VSYNC SCALER TSUMU58BWHL-LF RIN GNDR GIN GNDG SOG BIN GNDB HSYNC VSYNC VGA_DETn VGA_DETn VGA_DETn VGA_DDC_DAT VGA_DDC_CLK VGA_DDC_DAT VGA_DDC_CLK VGA_DDC_DAT VGA_DDC_CLK B DDC_WPn DDC_WPn DDC_WPn 3.VGA & DDC INTERFACE DVI & DDC INTERFACE C VCC5V DDC_WPn DDC_WPn VCC5V RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXC- RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXC- D HDCP_CTRLn DVI_DETn HDCP_CTRLn DVI_DETn DVI_DDC_DAT DVI_DDC_CLK DVI_DDC_DAT DVI_DDC_CLK 4.DVI & DDC INTERFACE E VCC3V3 VCC5V F G VDD VLCD VCC5V VCC3V3 VLCD POWER VCC5V VDD BKLT_EN BKLT_ADJ PANELVCC_EN VCC3V3 VLCD 2.POWER BKLT_EN BKLT_ADJ PANELVCC_EN RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXC- HDCP_CTRLn DVI_DETn DVI_DDC_DAT DVI_DDC_CLK VCC5V VCC3V3 BKLT_EN BKLT_ADJ PANELVCC_EN 5.SCALER TSUMU58BWHL-LF 1 2 3 4 5 6 7 8 9 10 11 12 13 A LVACKP LVACKM LVA0P LVA0M LVA1P LVA1M LVA2P LVA2M LVA3P LVA3M LVBCKP LVBCKM LVB0P LVB0M LVB1P LVB1M LVB2P LVB2M LVB3P LVB3M LVACKP LVACKM LVA0P LVA0M LVA1P LVA1M LVA2P LVA2M LVA3P LVA3M LVBCKP LVBCKM LVB0P LVB0M LVB1P LVB1M LVB2P LVB2M LVB3P LVB3M LED_G LED_A ADC1_IN ADC2_IN LED_G LED_A ADC1_IN ADC2_IN AUDIO_EN VOLUME AUDIO_EN VOLUME PANEL & KEY INTERFACE LVACKP LVACKM LVA0P LVA0M LVA1P LVA1M LVA2P LVA2M LVA3P LVA3M LVBCKP LVBCKM LVB0P LVB0M LVB1P LVB1M LVB2P LVB2M LVB3P LVB3M VLCD VCC3V3 B VLCD VCC3V3 C D LED_G LED_A E ADC1_IN ADC2_IN 6.PANEL & KEY INTERFACE AUDIO VDD AUDIO_EN VDD F VOLUME 7.AUDIO G 8 9 10 11 12 13 PCB No. 6832190100P01 ACER X223W 32 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
6. Schematics and Layouts:	31
6.1 ACER_LCD_X223W_SCHEMATICS_BLOCK DIAGRAM	31
6.2 ACER_LCD_X223W_SCHEMATICS_POWER BOARD	32
6.3 ACER _ _LCD_X223W SCHEMATICS_INTERFACE_TOP	33
6.4 ACER_LCD_X223W_SCHEMATICS_INTERFACE POWER	34
6.5 ACER_LCD_X223W_SCHEMATICS_INTERFACE BD_VGA	35
6.6 ACER_LCD_X223W_SCHEMATICS_INTERFACE BD_SCALER	36
6.7 ACER_LCD_X223W_SCHEMATICS_INTERFACE BD_KEY & PANEL INTERFACE	36
6.8 ACER_LCD_X223W_SCHEMATICS_FUNCTION _KEY	37
6.9 ACER_LCD_X223W _LAYOUTS_POWER BOARD	39
6.10 ACER_LCD_X223W LAYOUTS__ YOUTS_INTERFACE BOARD	40

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