Glidepad Interface Check - NEC Versa Note Series Service And Reference Manual

Glidepad Interface Check

Check Glidepad Data
CD-ROM Interface Check
8
Signal
YES
Check Glidepad
signal CLK
YES
Check Glidepad
Power
YES
Check Glidepad IRQ
END
9
Check CD-ROM
Power
YES
Check CD-ROM Data
Bus
YES
Check CD-ROM
Address Bus
YES
Check IRQ Signal
END
NO
Check AIO GLP connector
and GLPDATA signal
NO
Check AIO GLP connector
and GLPCLK signal
NO
Check +5Vs
NO Check U23 (M38867)
Pin 22, IRQ 12, and AIO
to AMB connector
NO
Check +5Vs
NO
Check CN4
SDD (0~15)
Check CN4
NO
Pin 29, 31, 32
SDA0, SDA1, SDA2
NO
Check CN4
Pin 28, DD_IRQ15
Troubleshooting and Repair 6-19