Lindy 32 341, 32 342 manual Appendix B. Problem Solving, Action

Appendix B. Problem Solving

Problem:

Peripherals hang after the LINDY CPU Switch USB’s channel is changed.

Action:

Ensure that you are using a suitable operating system (see section 2.1). Operating systems such as versions of Mac OS earlier than 8.6 are known to have associated problems. Ensure that you are not reading from or writing to USB connected disk drives whilst you are switching between computers. Ensure that the enumeration guard time is longer than the longest observed enumeration delay (see section 2.4.1) or ensure that you are not switching between computers during the enumeration process.

Problem:

Video is fuzzy or smudged.

Action:

Ensure that you are using high quality tri-coax video cables. These can be easily identified as they are roughly the same thickness as a monitor’s video cable and often are lightly fluted on the outside of the cable. Use the minimum possible length of video cables.

Problem:

The on/off key on a Macintosh keyboard doesn’t work.

Action:

Ensure that you have plugged the keyboard into port A and that there are not any USB hubs connected between the computer and the LINDY CPU Switch USB.

Problem:

The enumeration delay time seems too long.

Action:

Set the lowest enumeration guard time and remember not to switch away from a selected computer until the timer or hourglass indicates the end of the enumeration process.

LINDY CPU Switch USB Installation and Use Page 29