8-1
SECTION 8
TROUBLESHOOTING AND REPAIR
8.1 Before Considering Trouble
If the instrument is not operating properly for some reason, check it as follows:
• Power is not turned on
Is the power cord loose ? → Plug in firmly.
↓
Is the fuse blown ? → Replace the fuse.
• Synchronization is not established.
Are the transmit and receive interfaces the same ? → Check the set values and set them to the correct values.
(Termination conditions, output level, offset, etc.)
↓
Is the connection cable normal ? → Change the cable.
↓
Initialize the instrument. (Transmitter and receiver)
Set the receiver the same as the transmitter.
• Error added
Is the cable loose ? → Retighten the connector.
↓
Is Error addition OFF ? → Set Error addition to OFF.
↓
Are the phase margin and bias margin sufficient? → Adjust so that the phase and offset are suitably cut.
• The output waveform is distorted.
Is the cable loose ? → Retighten the connector.
↓
Is the CLOCK1 outputs terminated ? → use the attached cable to connect the outputs to the
↓ DUMMY terminal.
Are cables and connectors that have good high → Use cables and connectors that have good high fre-
frequency characteristics being used ? quency characteristics.
