I have had my dvd player for 2 yrs now, never had a problem until recently. In the midst of a movie, all of a sudden the picture started to roll vertically. Figuring it was probably the dvd, we inserted different dvd, same problem. When you first time dvd on, and it is on screensaver, it tolls then also, letting me know it's the player and not the dvd itself. Any suggestions?
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I opened the cover, found nothing smoked or loose, no tweaks available, in short there was nothing I could do without diagnostic gear. All other sources in my system were fine, so simple substitution confirmed the problem was output of Teac dvd player. Taking it to a repair shop would be $50 up front for fix-or-not... So, I went to Walmart and replaced it with a Sony DVD player for about $40. Regret loosing the look of matching components with my Teac receiver, cassette player but it's job is to play movies. Fixtya!
I get Vertical roll on my Apex AD1000 DVD player and need a schematic. I don't know where to get a schematic but I have the necessary test equipment to troubleshoot the problem. Do you know where to get a schematic or know what causes the vertical roll problem?
Program the setup menu screen to NTSC instead of "PAL" or "Auto"
What you're describing is a common problem for this particular unit, a bad spindle motor.
In some cases the motor can be removed by the tech and torn down for cleaning.. But in a high percentage of cases shops just replace the motor...
What's happening, as your symptom appears the spindle motor is beginning to spin irratically. In turn the picture can sometimes just drop out. In others it simply folds over and is unwatchable.
The spindle motor is not too expensive..
The picture rolling is simply because the PAL decoder can't lock up to the 60Hz vertical sync pulses, even if your DVD player is set to NTSC-PAL conversion and there is no vertical hold adjustment (either external or internal) on this model set to achieve this.
There is a possible alternative only if your DVD player has RGB output (not component). The JVC for example has direct RGB drive capability via the SCART input on the back panel. If you get a suitable lead you could try getting a picture this way as it bypasses the decoding and sync sep circuits in the PAL decoder chip.