6-16 Troubleshooting and Repair
Starting Check
Memory Interface Check
+5Vs = 5V
+3Vs = 3.3V
Check U15 Pin 7 =
high level
Check +VIO
Check Intel Mobile
Module (IMM)
END
NO
YES
NO
YES
Check HCLKCPU =
66MHz
Check U26 Pin 41,
Pin 42
YES
Check PCLK P4 =
33MHz
Check U26 Pin 8, 9,
11, 12, 13, 14
NO
NO
YES
START
Check Memory Vcc =
3.3V
Check DC-DC Board
Check RAS (0~3),
CAS (0~7) signals
Check RP10, RP11
Check MA (0~11)
Check IMM and
memory connector
Check MD(0~63)
Check RP14, 7, 8,
13, 6, 9, 12, 15
END
NO
YES
NO
NO
NO
YES
YES
START
