Texas Instruments Extensa 660 Series Maintenance Manual page 85

8
Check GLide Pad Data
Signal
Yes
Check Glide Pad Power
Yes
Check Glide Pad Power
Yes
Check Glide Pad IRQ
Yes
END
Figure 5-9 Glidepad Interface Troubleshooting Diagram
System Fails to Boot:
Glide Pad Interface Checks
No
No
No
No
Check CN21 Pin2
GLPDATA Signal
Check CN21 Pin3
GLPCLK Signal
Check CN21 Pin1=5V
Check U8(38813)
Pin14 IRQ12
Troubleshooting Procedures 5-25