Troubleshooting
This section gives recommendations on what to do if you have problems operating the IN1502, and it provides examples and descriptions for some image problems you might encounter.
The following are some tips to help you in troubleshooting.
1.Some symptoms may resemble others, so you may want to look through all of the examples before attempting to solve the problem.
2.Be prepared to backtrack in case the action taken doesn’t solve the problem.
3.It may help to keep notes and sketches in case the troubleshooting process gets lengthy. This will also give you something to discuss if you call for technical support.
4.Try simplifying the system by eliminating components that may have introduced the problem or made it more complicated.
5.For
6.For LCD and DLP projectors and plasma displays: In addition to the sync- related information above, check the user’s manual that came with the projector for troubleshooting tips, as well as for settings and adjustments. Each manufacturer may have its own terms, so look for terms like “auto setup”, “auto sync”, “pixel phase”, and “tracking”.
Operating problems
The table below shows some common operating problems and their solutions.
Problem | Cause |
No image appears. | The input signal is |
| incompatible. |
| Freeze mode was |
| entered when the |
| image was black. |
| The scaled output |
| rate is too high for |
| the display. |
Solution
Attach an input device that is compatible with NTSC 3.58, NTSC 4.43, PAL, or SECAM. Deactivate freeze mode.
Change the scaled output to a compatible resolution.
The image is frozen. | Freeze mode is on. | Deactivate freeze mode. |
|
| If that does not work, unplug the |
|
| power cord from the scaler, then |
|
| plug it back in. |
The image is flashing. The scaled output rate is too high for the display.
Change the scaled output to a compatible resolution.
The image is too soft. | The detail level | Change the detail level. |
| needs to be |
|
| changed. |
|
