EYE PATTERN
I managed to get the eye pattern on my oscilloscope( thanks to members on this forum ). I made a YouTube video above.
Now I get a lot of bouncing on the eye pattern and it gets worse with the last tracks on the cd.
I have tried moving the pots other than the laser output but don’t see much change.
What am I doing wrong or is there anything else I can do to fix it. Also I really need an angled pot adjusting flat screwdriver as when the last track is selected there is no room for a straight screwdriver to fit from the back.
I managed to get the eye pattern on my oscilloscope( thanks to members on this forum ). I made a YouTube video above.
Now I get a lot of bouncing on the eye pattern and it gets worse with the last tracks on the cd.
I have tried moving the pots other than the laser output but don’t see much change.
What am I doing wrong or is there anything else I can do to fix it. Also I really need an angled pot adjusting flat screwdriver as when the last track is selected there is no room for a straight screwdriver to fit from the back.
Attachments
I managed to get a better signal but now when I click fast forward on last track it seems to jump to the previous track as in this video. What am I doing wrong ? Also I notice on some tracks when I click pause the eye pattern is not very clear but when I click play it seems to get better.
Fast Forward Video
Fast Forward Video
Attachments
Ok how do you actually calibrate the tracking balance is there another reference point on the board ?
What Laser?
KSS-240?
Is factory adjusted. No Alignments necessary/should be done.
You don't state the fault symptoms.
KSS-240?
Is factory adjusted. No Alignments necessary/should be done.
You don't state the fault symptoms.
I have bought 5 KSS 240As. All required minor adjustments. Only one I was lucky that it just worked great. I do eventually get the tracking control right but by trial and error by moving the pot slightly to the left or to the right which is not ideal now I have the oscilloscope there must be a more accurate way to do tracking control and focus balance.