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4. Trouble shooting.
4. Ctrl B/D
1. Confirm LED D17(flashing) ,13 lighting
2. If not CHECK OSC X1 output.
3. Check CTRL input voltage
(CONNECTOR P300)
4. CHECK 3.3V, 5V,15V.
5. Check IC 11 3.3V
IC 3 2.5V
OSC(X1)
Probe
Touching
point
Check oscillating state.
(normal 100 MHZ)
Be careful with physical shock.
Input voltage
Check IC 11,13
DMM +
DMM – (GND)
Diode
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