Table of Contents
Advertisement
KX-MB1520FX7/KX-MB1520FX8/KX-MB1520FXW/KX-MB1530FX7/KX-MB1530FXW
Circuit Diagram (KX-MB1530 only)
Sequence of normal operation
When USB cable from PC is connected to CN300, VBUS voltage goes up to 5V, and IC300 recognize the connection with PC.
Then D+ becomes about 3V: waveform (1)-1
The D+ becomes 0V, then communication between IC300 and PC is started: waveform (2)-1
When a few seconds elapsed after USB cable was inserted into CN300,the unit enters stand-by mode.
When PC is at Hi-Speed, waveforms are (1)-1 ~ (1)-4.
When PC is at Full Speed, waveforms are (2)-1 ~ (2)-4.
195
Advertisement
Table of Contents
Troubleshooting
