Panasonic KX-NT400RU Service Manual ▷ View online
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KX-NT400RU
4.2.13. Bluetooth I/F Circuit
The telephone call by the Bluetooth Headset become possible by connecting the Bluetooth unit(KX-NT307). This circuit per-
forms the setting of the call path/vol. adjustment in each call mode by DSP built in VoIP(IC1).
The audio gain of each call is determined by download data from PBX or by internal data from flash memory(IC2).
forms the setting of the call path/vol. adjustment in each call mode by DSP built in VoIP(IC1).
The audio gain of each call is determined by download data from PBX or by internal data from flash memory(IC2).
4.2.14. SD Card I/F Circuit
SD Card clock is outputted from IC101 to SD Card connector, CN4.
CMD and DAT0~3 are bidirectional signals between IC101 and CN4.
SDCD and WR-PROTECT are input signals from CN4 to IC101.
CMD and DAT0~3 are bidirectional signals between IC101 and CN4.
SDCD and WR-PROTECT are input signals from CN4 to IC101.
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KX-NT400RU
4.2.15. USB I/F Circuit
VBUS is supplied by IC118 to USB Connector, CN3.
USB+ and USB- are bidirectional signals between IC101 and CN3.
Input EN of IC118 is enable signal for VBUS supply.
Output FLG of IC118 is flag signal of over current detection of VBUS.
EN and FLG are both active-high signals.
USB+ and USB- are bidirectional signals between IC101 and CN3.
Input EN of IC118 is enable signal for VBUS supply.
Output FLG of IC118 is flag signal of over current detection of VBUS.
EN and FLG are both active-high signals.
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KX-NT400RU
5 Location of Controls and Components
5.1.
Name and Locations
5.1.1.
Front View
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KX-NT400RU
5.1.2.
Right Side View
5.1.3.
Left Side View
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