AL2051W Service Guide
Page 7
... management and plug & play function. This will alleviate the growing health concerns. Chart of speakers. This monitor can be directly connected to drive a pair of AL2051W Panel Signal Interface Sync Type Color Temp User Adjust DDC Speaker Headphone Jack Microphone Jack USB Hub Tilt / Swivel 20" AUO M201EW01 V.2 D-SUB DVI Separate...
... management and plug & play function. This will alleviate the growing health concerns. Chart of speakers. This monitor can be directly connected to drive a pair of AL2051W Panel Signal Interface Sync Type Color Temp User Adjust DDC Speaker Headphone Jack Microphone Jack USB Hub Tilt / Swivel 20" AUO M201EW01 V.2 D-SUB DVI Separate...
AL2051W Service Guide
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Troubleshooting This chapter provides troubleshooting information for the AL2051W: 1. Main board No power Chapter 4 No power Press power key and look if the picture is normal NG Please reinsert and make sure the AC of 100-240 is normal OK NG Measure U703 PIN2=1.8V U705 PIN2=3.3V NG OK X401 and X402 oscillate waveforms are normal OK NG Replace U402 NG Replace U401 Reinsert or check the Adapter/Inverter section Check CN201 or replace U703, U705 Replace X401, X402 34
Troubleshooting This chapter provides troubleshooting information for the AL2051W: 1. Main board No power Chapter 4 No power Press power key and look if the picture is normal NG Please reinsert and make sure the AC of 100-240 is normal OK NG Measure U703 PIN2=1.8V U705 PIN2=3.3V NG OK X401 and X402 oscillate waveforms are normal OK NG Replace U402 NG Replace U401 Reinsert or check the Adapter/Inverter section Check CN201 or replace U703, U705 Replace X401, X402 34
AL2051W Service Guide
Page 41
... customer machines. FRU (Field Replaceable Unit) List Chapter 6 This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL2051W.Refer to this printed Service Guide. NOTE: Please note WHEN ORDERING FRU PARTS, you should check the most up-to repair or for repair ...order FRU parts for RMA (Return Merchandise Authorization). You MUST use the local FRU list provided by your regional Acer office on your regional web or channel (http://aicsl.acer.com.tw/spl/). NOTE: To scrap or to return the defective parts, you should follow the local government ...
... customer machines. FRU (Field Replaceable Unit) List Chapter 6 This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL2051W.Refer to this printed Service Guide. NOTE: Please note WHEN ORDERING FRU PARTS, you should check the most up-to repair or for repair ...order FRU parts for RMA (Return Merchandise Authorization). You MUST use the local FRU list provided by your regional Acer office on your regional web or channel (http://aicsl.acer.com.tw/spl/). NOTE: To scrap or to return the defective parts, you should follow the local government ...
AL2051W Service Guide
Page 46
... FSDQSU2 FSDQSU1 FSDQSU0 FSDATAU[0..31] /FSWE /FSCAS /FSRAS FSBKSEL0 FSBKSEL1 FSDDR[0..11] FSCLK+ FSCLKFSCKE FSADDR[0..11] 5.Frame Memory +2.5MVDD +2.5V_DMQ+2.5V_DMC 46 Title 715G1765-1 for AL2051W (acer) Size Document Number Rev B TOP 1 Date: Tuesday, January 03, 2006 Sheet 2 of 8 Schematic Diagram Main Board MST9251A B1 TXD RXD DDC_CLK DDC_DAT DDC_WP ST_DET1 ST_DET2...
... FSDQSU2 FSDQSU1 FSDQSU0 FSDATAU[0..31] /FSWE /FSCAS /FSRAS FSBKSEL0 FSBKSEL1 FSDDR[0..11] FSCLK+ FSCLKFSCKE FSADDR[0..11] 5.Frame Memory +2.5MVDD +2.5V_DMQ+2.5V_DMC 46 Title 715G1765-1 for AL2051W (acer) Size Document Number Rev B TOP 1 Date: Tuesday, January 03, 2006 Sheet 2 of 8 Schematic Diagram Main Board MST9251A B1 TXD RXD DDC_CLK DDC_DAT DDC_WP ST_DET1 ST_DET2...
AL2051W Service Guide
Page 47
... 1 ADJ C767 0.1uF 2.5V FOR L712 DDR +2.5V_DMC 120 OHM C768 0.1uF L714 +2.5V_DMQ 120 OHM C770 0.1uF +2.5V_DMC 6 +2.5V_DMQ 6 Title Size C Date: 715G1765-1 for AL2051W (acer) Document Number Rev POWER 1 Tuesday, January 03, 2006 Sheet 3 of 8 47
... 1 ADJ C767 0.1uF 2.5V FOR L712 DDR +2.5V_DMC 120 OHM C768 0.1uF L714 +2.5V_DMQ 120 OHM C770 0.1uF +2.5V_DMC 6 +2.5V_DMQ 6 Title Size C Date: 715G1765-1 for AL2051W (acer) Document Number Rev POWER 1 Tuesday, January 03, 2006 Sheet 3 of 8 47
AL2051W Service Guide
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... R446 R447 360` 1/10W 360` 1/10W R465 360` 1/10W R466 7 HWRESET 7 INT 7 ALE 7 RD 7 WR 7 AD0 7 AD1 7 AD2 7 AD3 VGA INPUT DVI INPUT CONNECTOR for AL2051W (acer) Size Document Number Rev C Scaler (MST9251A) 1 Date: Tuesday, January 03, 2006 Sheet 5 of 8
... R446 R447 360` 1/10W 360` 1/10W R465 360` 1/10W R466 7 HWRESET 7 INT 7 ALE 7 RD 7 WR 7 AD0 7 AD1 7 AD2 7 AD3 VGA INPUT DVI INPUT CONNECTOR for AL2051W (acer) Size Document Number Rev C Scaler (MST9251A) 1 Date: Tuesday, January 03, 2006 Sheet 5 of 8
AL2051W Service Guide
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... FSDATAU17 FSDATAU18 FSDATAU19 FSDATAU20 FSDATAU21 FSDATAU22 FSDATAU23 FSDATAU24 FSDATAU25 FSDATAU26 FSDATAU27 FSDATAU28 FSDATAU29 FSDATAU30 FSDATAU31 Near The DDR-SDRAM IC FSDATAU[0..31] 5 Title 715G1765-1 for AL2051W (acer) Size Document Number Rev B Frame Memory 1 Date: Tuesday, January 03, 2006 Sheet 6 of 8 50
... FSDATAU17 FSDATAU18 FSDATAU19 FSDATAU20 FSDATAU21 FSDATAU22 FSDATAU23 FSDATAU24 FSDATAU25 FSDATAU26 FSDATAU27 FSDATAU28 FSDATAU29 FSDATAU30 FSDATAU31 Near The DDR-SDRAM IC FSDATAU[0..31] 5 Title 715G1765-1 for AL2051W (acer) Size Document Number Rev B Frame Memory 1 Date: Tuesday, January 03, 2006 Sheet 6 of 8 50
AL2051W Service Guide
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... KEY_LEFT KEY_ONOFF D408 BAV99 VCPU C439 0.001uF SW401 LCD ONOFF SW402 KEY LEFT SW403 SW404 KEY AUTO KEY RIGHT SW405 KEY MENU Title 715G1765-1 for AL2051W (acer) Size Document Number Rev B MCU 1 Date: Tuesday, January 03, 2006 Sheet 7 of 8 51
... KEY_LEFT KEY_ONOFF D408 BAV99 VCPU C439 0.001uF SW401 LCD ONOFF SW402 KEY LEFT SW403 SW404 KEY AUTO KEY RIGHT SW405 KEY MENU Title 715G1765-1 for AL2051W (acer) Size Document Number Rev B MCU 1 Date: Tuesday, January 03, 2006 Sheet 7 of 8 51
AL2051W Service Guide
Page 52
... 220K` 1/16W C613 0.1uF Volume 5 OUT_L OUT_R CN603 1 5 4 3 2 7 8 EAR PHONEJACK R608 R609 75` 1/16W 75` 1/16W OUT_R OUT_L CN601 1 2 3 4 SPEAKER CONN 52 Title 715G1765-1 for AL2051W (acer) Size Document Number Rev A4 AUDIO 1 Date: Tuesday, January 03, 2006 Sheet 8 of 8
... 220K` 1/16W C613 0.1uF Volume 5 OUT_L OUT_R CN603 1 5 4 3 2 7 8 EAR PHONEJACK R608 R609 75` 1/16W 75` 1/16W OUT_R OUT_L CN601 1 2 3 4 SPEAKER CONN 52 Title 715G1765-1 for AL2051W (acer) Size Document Number Rev A4 AUDIO 1 Date: Tuesday, January 03, 2006 Sheet 8 of 8