NBLB2 Service Manual
2
IMPORTANT SAFETY INSTRUCTIONS
When using your telephone equipment, basic safety precautions should always be
followed to reduce the risk of fire, electric shock and injury to persons, including the
following:
Do not use this product near water, for example, near a bathtub, washbowl, and
kitchen sink or laundry tub, in a wet basement or near a swimming pool.
Avoid using a telephone (other than a cordless type) during an electrical storm.
There may be a remote risk of electric shock from lightning.
Do not use the telephone to report a gas leak in the vicinity of the leak.
Use only the power cord indicated in this manual.
Summary of Contents for NBLB2
Page 1: ...NBLB2 Service Manual...
Page 6: ......
Page 7: ...1 Chapter 1 System Description Specification...
Page 12: ...NBLB2 Service Manual 6 Chapter 2 Software Specification...
Page 66: ...NBLB2 Service Manual 60 Chapter 3 Hardware...
Page 69: ...NBLB2 Service Manual 63 Chapter 4 DC DC Converter...
Page 74: ...NBLB2 Service Manual 68 VOLTAGE IDENTIFICATION CODES...
Page 75: ...NBLB2 Service Manual 69...
Page 76: ...NBLB2 Service Manual 70...
Page 83: ...NBLB2 Service Manual 77 Chapter 5 Disassembly Guide...
Page 89: ...NBLB2 Service Manual 83 4 Grasp the module and pull it out...
Page 103: ...NBLB2 Service Manual 97 3 Lift off the logic upper...
Page 111: ...NBLB2 Service Manual 97 3 Lift off the logic upper...
Page 118: ...NBLB2 Service Manual Chapter 6 Testing and Troubleshooting...
Page 121: ...NBLB2 Service Manual 107 Figure 6 1 Troubleshooting flowchart 1 2...
Page 122: ...NBLB2 Service Manual Figure 6 1 Troubleshooting flowchart 2 2...
Page 129: ...NBLB2 Service Manual 115 4 Display Troubleshooting Figure 6 3 Display troubleshooting process...
Page 132: ...5 Keyboard Troubleshooting Figure 6 4 Keyboard troubleshooting process...
Page 134: ...6 External USB Devices Troubleshooting Figure 6 5 External USB device troubleshooting process...
Page 136: ...7 CRT troubleshooting Figure 6 6 CRT troubleshooting process...
Page 138: ...8 HDMI troubleshooting Figure 6 7 HDMI troubleshooting process...
Page 140: ...9 Touch Pad Troubleshooting Figure 6 8 Touch Pad troubleshooting process...
Page 142: ...10 Speaker Troubleshooting Figure 6 9 Speaker troubleshooting process...
Page 144: ...11 CD ROM DVD Troubleshooting Figure 6 10 CD ROM DVD drive troubleshooting process...
Page 146: ...12 Wireless LAN Troubleshooting Figure 6 11 Wireless LAN troubleshooting process...