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Acer AL1716 AL1716W Service Guide - Page 33

Audio, Power, Ddc Interface, Scaler Gm5726h, Panel Interface

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6.2 ACER_LCD_AL1716W_SCHEMATICS_INTERFACE_TOP 1 2 3 3.VGA & DDC INTERFACE VCC5V VCC5V RIN RIN GNDR A GNDR GIN GNDG GIN GNDG BIN BIN GNDB GNDB HS_IN VS_IN HS_IN VS_IN B DDC_SCL_VGA DDC_SDA_VGA DDC_SCL_VGA DDC_SDA_VGA DDC_WPn VGA_DETn DDC_WPn VGA_DETn C 3.VGA & DDC INTERFACE D 4.DVI & DDC INTERFACE DDC_WPn DVI_DETn DDC_WPn DVI_DETn VCC5V HDCP_HPDN DVI_DETn RX2+ VCC5V RX2+ RX2- E RX2RX1+ RX1+ RX1- RX1- RX0+ RX0+ RX0- RX0- RXC+ RXC+ RXC- RXC- DDC_SCL_DVI F DDC_SCL_DVI DDC_SDA_DVI DDC_SDA_DVI 4.DVI & DDC INTERFACE 6.AUDIO VDD AUDIO_EN AUDIO_EN G VDD VOLUME VOLUME 7.AUDIO 1 2 3 4 5 6 5.SCALER GM5726H RIN GNDR GIN GNDG BIN GNDB HS_IN VS_IN RIN GNDR GIN GNDG BIN GNDB HS_IN VS_IN DDC_SCL_VGA DDC_SDA_VGA DDC_WPn VGA_DETn DDC_SCL_VGA DDC_SDA_VGA DDC_WPn VGA_DETn DVI_DETn DVI_DETn RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXC- DVI_DETn HDCP_HPDN RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXC- DDC_SCL_DVI DDC_SDA_DVI DDC_SCL_DVI DDC_SDA_DVI AUDIO_EN VOLUME AUDIO_EN VOLUME 4 5 6 7 8 9 CH3P_LV_E CH3N_LV_E CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E CLKP_LV_E CLKN_LV_E CH3P_LV_O CH3N_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O CLKP_LV_O CLKN_LV_O CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E CLKP_LV_E CLKN_LV_E CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O CLKP_LV_O CLKN_LV_O LED_B LED_A LBADC_IN1 LBADC_IN2 NC LED_B LED_A LBADC_IN1 LBADC_IN2 BKLT_ADJ BKLT_EN PANELVCC_EN BKLT_ADJ BKLT_EN PANELVCC_EN VCC5V VCC3V3 VCC1V8 VCC5V VCC3V3 VCC1V8 5.SCALER GM5726H 7 8 9 10 11 12 13 6.KEY & PANEL INTERFACE CH3P_LV_E A CH2P_LV_E CH2N_LV_E CH3N_LV_E CH2P_LV_E CH1P_LV_E CH1N_LV_E CH2N_LV_E CH1P_LV_E CH0P_LV_E CH0N_LV_E CLKP_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E CLKN_LV_E CLKP_LV_E CLKN_LV_E B CH3P_LV_O CH2P_LV_O CH3N_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O CLKP_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O CLKN_LV_O CLKP_LV_O CLKN_LV_O C VCC5V LED_B LED_A LBADC_IN1 LBADC_IN2 LED_B LED_A LBADC_IN1 LBADC_IN2 NC VCC5V VCC3V3 VLCD VCC3V3 VLCD D 6.KEY & PANEL INTERFACE 2.POWER E BKLT_ADJ BKLT_EN PANELVCC_EN BKLT_ADJ BKLT_EN PANELVCC_EN VCC5V VCC5V VCC3V3 VCC3V3 VCC1V8 VCC1V8 F VLCD VDD VLCD VDD 2.POWER G 10 11 12 13 PCB No. 6832175000P01 ACER AL1716W 32 Go to cover page

Section	Page
Cover Page	1
Important Safety Notice	2
1. Product Specification	3
1.1 Scope	3
1.2 General Requirements	3
1.3 Interface Connectors	4
1.4 Input Signals (Analog RGB Signal Input)	4
1.5 User Controls and Indicators	5
1.6 Monitor Modes and Timing Capability	6
1.7 Controller Requirements	7
1.8 DC - AC Inverter Requirements	7
1.9 Power Supply Requirements	7
1.10 Display Communications Channel	7
2. Flat Panel Specification	8
2.1 General Information	8
2.2 Panel Timings	8
2.3 Polarizer Hardness	8
2.4 Backlight Requirements	8
2.5 Defects	8
2.6 Optical Characteristics	9
2.7 Panel General Information	10
2.8 Back-Light Unit	12
2.9 Switching Characteristics for LVDS Receiver	12
3. Exploded Diagram	13
3.1 Packing Exploded Diagram	13
3.2 Product Exploded Diagram	14
4. Troubleshooting	14
4.1 Power board	15
4.2 Inverter circuit on power board	16
4.3 No.display of screen(Screen is black, color of LED is amber)	17
4.4 Nothing display on screen (screen is black, color of LED is blue)	18
4.5 Abnormal screen for VGA source	19
4.6 Abnormal OSM display adjust problem	20
4.7 Abnormal plug and play for VGA	21
4.8 Checking the control circuit of vertical sync pulse for VGA	22
4.9 Checking the resolution change IC movement	23
5. Spare Parts List	24
6. Schematics and Layouts	32
6.1 ACER_LCD_AL1716W_SCHEMATICS_POWER BOARD	32
6.2 ACER_LCD_AL1716W_SCHEMATICS_INTERFACE_TOP	33
6.3 ACER_LCD_AL1716W_SCHEMATICS_INTERFACE POWER	34
6.4 ACER_LCD_AL1716W_SCHEMATICS_INTERFACE BD_VGA & DDC INTERFACE	35
6.5 ACER_LCD_AL1716W_SCHEMATICS_INTERFACE BD_DVI & DDC INTERFACE	36
6.6 ACER_LCD_AL1716W_SCHEMATICS_INTERFACE BD_SCALER_GM5726H	37
6.7 ACER_LCD_AL1716W_SCHEMATICS_INTERFACE BD_KEY & PANEL INTERFACE	38
6.8 ACER_LCD_AL1716W_SCHEMATICS_INTERFACE BD_AUDIO	39
6.9 ACER_LCD_AL1716W_LAYOUTS_POWER BOARD	40
6.10 ACER_LCD_AL1716W_LAYOUTS_INTERFACE BOARD	41
7. Assembly and Disassembly Procedures	42
7.1 Assembly Procedures	42

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