Troubleshooting
Model: C570R
Malfunction: Resistance is excessive.
Circumstance: Press fan keys; the fan does not operate; but resistance is excessive.
Possible causes: 1. Drive board components have an electrical short.
Troubleshooting: 1. Inspect all cable connections;
Make sure that screws don’t create an electrical short in the wires.
2. Test Q7 on the drive board.
3. Replace U5 IC on the drive board.
3-5-1
Inspect Q7 for an electrical short
Q7 Test
Set multi-meter to the diode
setting. Test the three pins of Q7
for a short.
Replace U5
Содержание C570R
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