Acer Aspire One AO725 Netbook Service Guide
Page 9
... Locations 5-3 Clearing Password Check and BIOS Recovery 5-5 Clearing Password Check 5-5 BIOS Recovery by Crisis Disk 5-7 CHAPTER 6 FRU (Field Replaceable Unit) List Exploded Diagrams 6-4 FRU List 6-8 Screw List 6-20 CHAPTER 7 Model Definition and Configuration Acer Aspire One 725 7-3 CHAPTER 8 Test Compatible Components Microsoft® Windows® 7 Environment Test 8-4 CHAPTER 9 Online Support Information ix
... Locations 5-3 Clearing Password Check and BIOS Recovery 5-5 Clearing Password Check 5-5 BIOS Recovery by Crisis Disk 5-7 CHAPTER 6 FRU (Field Replaceable Unit) List Exploded Diagrams 6-4 FRU List 6-8 Screw List 6-20 CHAPTER 7 Model Definition and Configuration Acer Aspire One 725 7-3 CHAPTER 8 Test Compatible Components Microsoft® Windows® 7 Environment Test 8-4 CHAPTER 9 Online Support Information ix
Acer Aspire One AO725 Netbook Service Guide
Page 97
... succeeding disasembly sections illustrate the entire disassembly sequence. Observe the order of the sequence to avoid damage to any of the hardware components. Main Screw List Size Quantity Acer Part No. Disassembly Process 0 The disassembly process is divided into the following sections: External components disassembly Main unit disassembly...
... succeeding disasembly sections illustrate the entire disassembly sequence. Observe the order of the sequence to avoid damage to any of the hardware components. Main Screw List Size Quantity Acer Part No. Disassembly Process 0 The disassembly process is divided into the following sections: External components disassembly Main unit disassembly...
Acer Aspire One AO725 Netbook Service Guide
Page 101
Base Door Removal 0 Prerequisite: Battery Pack Removal 1. Slide the base door (B) toward the front of the system and lift away from the system (Figure 3-5). Remove one (1) screw (A) securing the base door in place (Figure 3-5). Base Door 2. B A Figure 3-5. ID Size A M2.0*6.0 Quantity 1 Screw Type Machine Maintenance Procedures 3-11
Base Door Removal 0 Prerequisite: Battery Pack Removal 1. Slide the base door (B) toward the front of the system and lift away from the system (Figure 3-5). Remove one (1) screw (A) securing the base door in place (Figure 3-5). Base Door 2. B A Figure 3-5. ID Size A M2.0*6.0 Quantity 1 Screw Type Machine Maintenance Procedures 3-11
Acer Aspire One AO725 Netbook Service Guide
Page 102
A C B Figure 3-6. Remove one (1) screw (A) securing the WLAN module in place (Figure 3-7). WLAN Module Machine Maintenance Procedures WLAN (Wireless Local Area Network) Module Removal 0 Prerequisite: Base Door Removal 1. Refer to WLAN card (Figure 3-7). 3. Disconnect main (C) and auxiliary (D) antennas connected to Figure 3-6. Find WLAN module (B) on the base assembly. C D A 3-12 Figure 3-7. Component Location 2.
A C B Figure 3-6. Remove one (1) screw (A) securing the WLAN module in place (Figure 3-7). WLAN Module Machine Maintenance Procedures WLAN (Wireless Local Area Network) Module Removal 0 Prerequisite: Base Door Removal 1. Refer to WLAN card (Figure 3-7). 3. Disconnect main (C) and auxiliary (D) antennas connected to Figure 3-6. Find WLAN module (B) on the base assembly. C D A 3-12 Figure 3-7. Component Location 2.
Acer Aspire One AO725 Netbook Service Guide
Page 103
Remove WLAN module from mainboard connector (E) (Figure 3-8). E Figure 3-8. WLAN Module ID Size A M2.0*3.0 Quantity 1 Screw Type Machine Maintenance Procedures 3-13 4.
Remove WLAN module from mainboard connector (E) (Figure 3-8). E Figure 3-8. WLAN Module ID Size A M2.0*3.0 Quantity 1 Screw Type Machine Maintenance Procedures 3-13 4.
Acer Aspire One AO725 Netbook Service Guide
Page 105
Find HDD module (A) on the base assembly as shown in place (Figure 3-11). 3. Remove two (2) screws (E) from mainboard connector (D). HDD (Hard Disk Drive) Module Removal 0 Prerequisite: Base Door Removal 1. Remove two (2) screws (B) securing the HDD module in Figure 3-6. 2. Refer to release HDD module from HDD bracket (F) (Figure 3-12). C B D B Figure 3-11. Pull the tab (C) to Figure 3-11. E F E Figure 3-12. HDD Module Machine Maintenance Procedures 3-15 HDD Module 4.
Find HDD module (A) on the base assembly as shown in place (Figure 3-11). 3. Remove two (2) screws (E) from mainboard connector (D). HDD (Hard Disk Drive) Module Removal 0 Prerequisite: Base Door Removal 1. Remove two (2) screws (B) securing the HDD module in Figure 3-6. 2. Refer to release HDD module from HDD bracket (F) (Figure 3-12). C B D B Figure 3-11. Pull the tab (C) to Figure 3-11. E F E Figure 3-12. HDD Module Machine Maintenance Procedures 3-15 HDD Module 4.
Acer Aspire One AO725 Netbook Service Guide
Page 107
Main Unit Disassembly Flowchart Table 3-3. Screw List Step Upper Case Removal Switch Board Removal Keyboard Module Removal IO Board Removal LED Board Removal Mainboard Removal Thermal Module Removal LCD Module Removal Size M2.0*6.0 M2.0*7.5 M2.0*3.0 M2.0*3.0 M1.6*2.5 ϕ1.7*2.5 M2.0*4.5 M2.0*4.5 M2.0*4.5 M2.0*3.0 M2.0*4.5 Quantity 6 7 1 2 10 10 3 1 2 3 3 Acer Part No. 86.S6507.001 86...
Main Unit Disassembly Flowchart Table 3-3. Screw List Step Upper Case Removal Switch Board Removal Keyboard Module Removal IO Board Removal LED Board Removal Mainboard Removal Thermal Module Removal LCD Module Removal Size M2.0*6.0 M2.0*7.5 M2.0*3.0 M2.0*3.0 M1.6*2.5 ϕ1.7*2.5 M2.0*4.5 M2.0*4.5 M2.0*4.5 M2.0*3.0 M2.0*4.5 Quantity 6 7 1 2 10 10 3 1 2 3 3 Acer Part No. 86.S6507.001 86...
Acer Aspire One AO725 Netbook Service Guide
Page 108
...). E D A CB Figure 3-15. Upper Case Removal 0 Prerequisite: HDD (Hard Disk Drive) Module Removal 1. Remove fourteen (14) screws from the top edge of the upper case and release the tabs on the bottom edge. Upper Case Screw Location 4. Upper Case Removal Machine Maintenance Procedures Disconnect keyboard FPC (A) from the system. 3-18 Figure 3-16...
...). E D A CB Figure 3-15. Upper Case Removal 0 Prerequisite: HDD (Hard Disk Drive) Module Removal 1. Remove fourteen (14) screws from the top edge of the upper case and release the tabs on the bottom edge. Upper Case Screw Location 4. Upper Case Removal Machine Maintenance Procedures Disconnect keyboard FPC (A) from the system. 3-18 Figure 3-16...
Acer Aspire One AO725 Netbook Service Guide
Page 109
ID Red Call out Green Call out Blue Call out Size M2.0*6.0 M2.0*7.5 M2.0*3.0 Quantity 6 7 1 Screw Type Machine Maintenance Procedures 3-19
ID Red Call out Green Call out Blue Call out Size M2.0*6.0 M2.0*7.5 M2.0*3.0 Quantity 6 7 1 Screw Type Machine Maintenance Procedures 3-19
Acer Aspire One AO725 Netbook Service Guide
Page 110
Refer to Figure 3-17. 2. Remove the switch board (A) from switch board connector (D) and touchpad connector (E) (Figure 3-17). 3. Remove two (2) screws (C) securing the switch board in place (Figure 3-17). Switch Board 4. Switch Board Removal Machine Maintenance Procedures B A C C E D Figure 3-17. Find switch Board (A) on the top assembly. Disconnect touchpad FPC (B) from the top assembly. (Figure 3-18). D 3-20 C A B A Figure 3-18. Switch Board Removal 0 Prerequisite: Upper Case Removal 1.
Refer to Figure 3-17. 2. Remove the switch board (A) from switch board connector (D) and touchpad connector (E) (Figure 3-17). 3. Remove two (2) screws (C) securing the switch board in place (Figure 3-17). Switch Board 4. Switch Board Removal Machine Maintenance Procedures B A C C E D Figure 3-17. Find switch Board (A) on the top assembly. Disconnect touchpad FPC (B) from the top assembly. (Figure 3-18). D 3-20 C A B A Figure 3-18. Switch Board Removal 0 Prerequisite: Upper Case Removal 1.
Acer Aspire One AO725 Netbook Service Guide
Page 112
Keyboard Module Removal 0 Prerequisite: Upper Case Removal 1. Figure 3-19. Peel off the protective mylar from the top support bracket (Figure 3-19). Keyboard Mylar 2. Remove ten (10) machine screws (RED call out) first and then ten (10) tapping screws (GREEN call out) securing the top support bracket in place (Figure 3-20). 3-22 Figure 3-20. Keyboard Screw Location Machine Maintenance Procedures
Keyboard Module Removal 0 Prerequisite: Upper Case Removal 1. Figure 3-19. Peel off the protective mylar from the top support bracket (Figure 3-19). Keyboard Mylar 2. Remove ten (10) machine screws (RED call out) first and then ten (10) tapping screws (GREEN call out) securing the top support bracket in place (Figure 3-20). 3-22 Figure 3-20. Keyboard Screw Location Machine Maintenance Procedures
Acer Aspire One AO725 Netbook Service Guide
Page 114
ID Red Call out Green Call out Size M1.6*2.5 ϕ1.7*2.5 Quantity 10 10 Screw Type 3-24 Machine Maintenance Procedures
ID Red Call out Green Call out Size M1.6*2.5 ϕ1.7*2.5 Quantity 10 10 Screw Type 3-24 Machine Maintenance Procedures
Acer Aspire One AO725 Netbook Service Guide
Page 115
Disconnect IO board FPC (G) from mainboard connector (C) and IO board connector (E) (Figure 3-24). 4. Remove three (3) screws (A) securing the IO board in place (Figure 3-24). Disconnect AC converter cable (D) from mainboard connector (F) and IO board connector (H) (Figure 3-24). 3. Refer to Figure 3-23. Find IO Board (B) on the base assembly. C F Figure 3-24. Component Location 2. IO Board Machine Maintenance Procedures A D E G H A 3-25 B A C Figure 3-23. IO Board Removal 0 Prerequisite: Upper Case Removal 1.
Disconnect IO board FPC (G) from mainboard connector (C) and IO board connector (E) (Figure 3-24). 4. Remove three (3) screws (A) securing the IO board in place (Figure 3-24). Disconnect AC converter cable (D) from mainboard connector (F) and IO board connector (H) (Figure 3-24). 3. Refer to Figure 3-23. Find IO Board (B) on the base assembly. C F Figure 3-24. Component Location 2. IO Board Machine Maintenance Procedures A D E G H A 3-25 B A C Figure 3-23. IO Board Removal 0 Prerequisite: Upper Case Removal 1.
Acer Aspire One AO725 Netbook Service Guide
Page 116
IO Board Removal ID Size A M2.0*4.5 Quantity 3 Screw Type 3-26 Machine Maintenance Procedures 5. Figure 3-25. Remove IO board (C) by gently lifting it from the base assembly (Figure 3-25).
IO Board Removal ID Size A M2.0*4.5 Quantity 3 Screw Type 3-26 Machine Maintenance Procedures 5. Figure 3-25. Remove IO board (C) by gently lifting it from the base assembly (Figure 3-25).
Acer Aspire One AO725 Netbook Service Guide
Page 117
Find LED Board (C) on the base assembly. A B D E Figure 3-26. LED Board 4. Remove the LED board (C) from mainboard connector (A) and LED board connector (E) (Figure 3-26). 3. LED Board Removal 0 Prerequisite: Upper Case Removal 1. Disconnect LED board FPC (B) from the base assembly (Figure 3-27). Refer to Figure 3-23. 2. LED Board Removal Machine Maintenance Procedures 3-27 Remove one (1) screw (D) securing the LED board in place (Figure 3-26). C Figure 3-27.
Find LED Board (C) on the base assembly. A B D E Figure 3-26. LED Board 4. Remove the LED board (C) from mainboard connector (A) and LED board connector (E) (Figure 3-26). 3. LED Board Removal 0 Prerequisite: Upper Case Removal 1. Disconnect LED board FPC (B) from the base assembly (Figure 3-27). Refer to Figure 3-23. 2. LED Board Removal Machine Maintenance Procedures 3-27 Remove one (1) screw (D) securing the LED board in place (Figure 3-26). C Figure 3-27.
Acer Aspire One AO725 Netbook Service Guide
Page 119
... (Figure 3-29). Mainboard 8. Remove the Mainboard by gently lifting it from mainboard connector (D). 4. Refer to Figure 3-23. 2. Disconnect LVDS cable from mainboard connector (E). 5. Remove two (2) screws (B) securing the mainboard in place (Figure 3-28). Machine Maintenance Procedures 3-29 Disconnect IO board FPC from mainboard connector (C) (Figure 3-28). 3. Mainboard Removal 0 Prerequisite: Upper Case...
... (Figure 3-29). Mainboard 8. Remove the Mainboard by gently lifting it from mainboard connector (D). 4. Refer to Figure 3-23. 2. Disconnect LVDS cable from mainboard connector (E). 5. Remove two (2) screws (B) securing the mainboard in place (Figure 3-28). Machine Maintenance Procedures 3-29 Disconnect IO board FPC from mainboard connector (C) (Figure 3-28). 3. Mainboard Removal 0 Prerequisite: Upper Case...
Acer Aspire One AO725 Netbook Service Guide
Page 121
Remove the circuit board and follow local regulations for disposal. ID Size B M2.0*4.5 Quantity 2 Screw Type Machine Maintenance Procedures 3-31 + IMPORTANT: Circuit boards >10 cm² have been highlighted with a yellow rectangle as shown in Figure 3-30.
Remove the circuit board and follow local regulations for disposal. ID Size B M2.0*4.5 Quantity 2 Screw Type Machine Maintenance Procedures 3-31 + IMPORTANT: Circuit boards >10 cm² have been highlighted with a yellow rectangle as shown in Figure 3-30.
Acer Aspire One AO725 Netbook Service Guide
Page 123
Disconnect the thermal fan cable from three (3) to one (1). A 1 3 A B 2 Figure 3-32. Remove three (3) screws (A) in reverse numerical order from mainboard connector (B) (Figure 3-32). 3. Remove thermal module from the mainboard. Thermal Module Removal 0 Prerequisite: Mainboard Removal 1. Find the thermal module (C) on the mainboard. Refer to Figure 3-32. 4. Refer to Figure 3-31. 2. Thermal Module ID Size A M2.0*3.0 Quantity 3 Screw Type Machine Maintenance Procedures 3-33
Disconnect the thermal fan cable from three (3) to one (1). A 1 3 A B 2 Figure 3-32. Remove three (3) screws (A) in reverse numerical order from mainboard connector (B) (Figure 3-32). 3. Remove thermal module from the mainboard. Thermal Module Removal 0 Prerequisite: Mainboard Removal 1. Find the thermal module (C) on the mainboard. Refer to Figure 3-32. 4. Refer to Figure 3-31. 2. Thermal Module ID Size A M2.0*3.0 Quantity 3 Screw Type Machine Maintenance Procedures 3-33
Acer Aspire One AO725 Netbook Service Guide
Page 125
Remove the antennas from the base assembly (Figure 3-35). A A B Figure 3-34. Figure 3-35. LCD Module Removal Machine Maintenance Procedures 3-35 Remove three (3) screws (A) securing LCD hinges in place (Figure 3-34). Remove the LCD module from the cable guides (B) (Figure 3-34). 2. LCD Module 3. LCD (Liquid Crystal Display) Module Removal 0 Prerequisite: Mainboard Removal and IO Board Removal 1.
Remove the antennas from the base assembly (Figure 3-35). A A B Figure 3-34. Figure 3-35. LCD Module Removal Machine Maintenance Procedures 3-35 Remove three (3) screws (A) securing LCD hinges in place (Figure 3-34). Remove the LCD module from the cable guides (B) (Figure 3-34). 2. LCD Module 3. LCD (Liquid Crystal Display) Module Removal 0 Prerequisite: Mainboard Removal and IO Board Removal 1.
Acer Aspire One AO725 Netbook Service Guide
Page 126
ID Size A M2.0*4.5 Quantity 3 Screw Type 3-36 Machine Maintenance Procedures ! CAUTION: Make sure all cables are moved away from the device to avoid damage during removal.
ID Size A M2.0*4.5 Quantity 3 Screw Type 3-36 Machine Maintenance Procedures ! CAUTION: Make sure all cables are moved away from the device to avoid damage during removal.