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11. TRO UBLE SHOOTING HINTS
1. No Power
AL718
No Power
Check Power Button
Fro m Scaler/B(CN4) to Button/B(CN1)
OK
Check power module
Output CN1
Pin 1,2 = 5V ?
Pin 4 = 3.3V ?
Pin 6 = 2.5V ?
OK
Check Scalar module
Output CN3
Pin 1,2 = 5V ?
Pin 4 = 3.3V ?
Pin 6 = 2.5V ?
Check cab le
No
Open ?
No
Change Switch or Button board
No
Change Power module
No
Change Cable
Fro m (power module)CN1 to (Scalar/ B) CN3
Yes
Change Cable
11-1
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