Tmc Test; Bt Board-Level Test - Asus P750 Repair Manual

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6.2.18 TMC Test

TMC pathway: USB connector->U60->U600->CPU. It is the same
pathway which cpu read battery information. We can use the Battery ID
test result to help us verify the hardware circuit. If the battery ID is pass
but this item is failure then please re-work the U60.

6.2.19 BT Board-Level Test

In this item just check the CPU's command sending to blue tooth chip
(U20). If the result is NG please check the below item.
BT_VCC_3.3V
R104, R111
R102, R104, R110, R111, R112
If all of item is pass , please re-work the chip U20.
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Figure 24. BT connection
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GTC ■ Service Manual
USB signal
USB protocol check
ASUS Proprietary