Bt&Wifi - Huawei U8860 Maintenance Manual

U8860
Maintenance Manual
9.4.11 BT&WiFi
The BT functions are implemented depending on the BCM4329, and the BT data of the
MSM8255 and BCM4329 are transmitted by UART and PCM. The signal definitions are as
follows:
Signal
QTR_BT_UART_CTS
QTR_BT_UART_RTS
QTR_BT_UART_TXD
QTR_BT_UART_RXD
QTR_BT_PCM_DIN
QTR_BT_PCM_DOUT
Issue 1.0 (2011-11-14)
Camera failure
Is the problem solved after the
software is loaded?
N
Is the camera supplied
with power normally?
Y
Does the camera
interface (J1902/J1901)
have defects, such as
cold soldered, damaged
or distorted?
N
Is the problem solved
after the camera is replaced?
N
Replace U201.
Remarks
The ready to receive information sent to the Slave by the Host
The clear to send information sent to the Host by the Slave
Sending signal
Receiving signal
PCM input
PCM output
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9 Principles and Troubleshooting
Y
End
N
Replace U301.
Y
Replace
J1902/J1901.
Y
End
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