GTC Service Manual
ASUS Proprietary 22
華
華
碩
碩
電
電
腦
腦
4.9.3 Internal Qwerty Keypad
The signal control by U31. If you have any problem, try to check
soldering issue(Open / Short) by X-ray.
Figure 17. Qwerty Keypad controller circuit
4.10
4.10 4.10
4.10 BT Test
BT TestBT Test
BT Test
In general should be get follow bellow status
Check C25 26MHz clock
Visual inspection R80、R86
Check U55 Pin1 Low
Pin9/Pin10 Short
Pin6/Pin7 Short
Figure 18. BT circuit
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