J
Juan Villagra
- Jan 1, 1970
- 0
Hello everyone. I have a problem:
I get an Cyberhome DVD player, model CH-DVD 300, and it suddenly
begins
to stop VCD reading at the half of disk... and not even read DVDs. I
opened it, dismount the unit, clean the lens, nothing... i tried to
re-calibrate de lasers, and i get random response, sometaimes it reads
VCD, sometimes not, and DVDs were recognized, but reported "bad" or
"XXX
error". then, i realized the real reason of the failure: Design error.
For reduce costs (i imagine), ther was used an very short flex (that's
the name we use here for that flat plastic bus that connects the mobil
laser assembly with the card), and while in function, it gets
"stressed"
(sorry, my english sucks) and finally get cutted near the laser side.
Now comes the real problem:
1.- While i thougt it was the calibration, i dis-calibrate it.
2.- Here i culdn't find the same flex (30 pins, aprox 1,8 cms wide, 10
cms long) or other some longer, so i get one with 40 pins, same pin
size, but 35 cms long.
Now, i cut off the ten exedent pins and installed it, it fits OK, but
now, i only can meke it reads CDs (VCDs, SVCDS, Audio-CDs, and every
else), but not DVDs. I tried to re-calibrate the DVD laser, and i only
gets recognition (there is an DVD disc), but when it starts to read,
it loses the track.
My question is: is there some max longitude for an DVD laser flex?? i
imagine this: the bitrate of the DVD lecture signal is so high that it
fades out in an so long bus conector. Anybody knows somthing about
this?
If it´s no the case, then the DVD laser simply died, and no fixation
is posible, so the best i can do is remain it like a "VCD player".
Sombady put light over this isuue please!
Thanks.
I get an Cyberhome DVD player, model CH-DVD 300, and it suddenly
begins
to stop VCD reading at the half of disk... and not even read DVDs. I
opened it, dismount the unit, clean the lens, nothing... i tried to
re-calibrate de lasers, and i get random response, sometaimes it reads
VCD, sometimes not, and DVDs were recognized, but reported "bad" or
"XXX
error". then, i realized the real reason of the failure: Design error.
For reduce costs (i imagine), ther was used an very short flex (that's
the name we use here for that flat plastic bus that connects the mobil
laser assembly with the card), and while in function, it gets
"stressed"
(sorry, my english sucks) and finally get cutted near the laser side.
Now comes the real problem:
1.- While i thougt it was the calibration, i dis-calibrate it.
2.- Here i culdn't find the same flex (30 pins, aprox 1,8 cms wide, 10
cms long) or other some longer, so i get one with 40 pins, same pin
size, but 35 cms long.
Now, i cut off the ten exedent pins and installed it, it fits OK, but
now, i only can meke it reads CDs (VCDs, SVCDS, Audio-CDs, and every
else), but not DVDs. I tried to re-calibrate the DVD laser, and i only
gets recognition (there is an DVD disc), but when it starts to read,
it loses the track.
My question is: is there some max longitude for an DVD laser flex?? i
imagine this: the bitrate of the DVD lecture signal is so high that it
fades out in an so long bus conector. Anybody knows somthing about
this?
If it´s no the case, then the DVD laser simply died, and no fixation
is posible, so the best i can do is remain it like a "VCD player".
Sombady put light over this isuue please!
Thanks.
