Hi...I have the same problem on my Toshiba 32DF46 with the vertical collapse. I was able to find the service manual online with all the part diagrams and such. But it does not tell me exactly where the vertical section is. Would you know by looking at these schematics? Here is the link to the free schematics I found http://www.audiolabga.com/pdf/32DF46.pdf
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Hi Please check around vertical outpu IC for bad solder joints and you can try to replace the electolitic capacitors in vertical output line. Check if vertical plug (which comes from deflexion coils) is well attached in place.
If the line is VERTICAL and at the centre of the screen it is called LINE COLLAPSE, but when the line is HORIZONTAL this is called FIELD COLLAPSE.
It may be dry joints on the field/frame output IC or it may have gone open circuit. I know that the field/frame output IC's can be obtained, but if you are no good with a soldering iron then you'll have to put it in for service.
When this kind of set comes in for this problem, it is typically caused by a leaky/intermittent diode D402, located next to the heat sink for the vertical deflection IC. I will typically also replace the vertical deflection IC at the same time, just to avoid repeat failures.
Is it just folded over with a thin line of light thru the middle of screen. It is a vertical collapse. Vertical Ic is loosing connection with the board or failing Already. resolder first then see if it can actually solve it. If not check capacitor or neighboring components within vertical circuit or replace the vertical IC and check if this solves the problem.
If your not inclened in electronics, have it service by a qualified one.
have a Mitsubishi TV 1993. Model CS-35301. The problem is that there is a white line that is running through a blank screen. The sound is fine just no picture. Have you heard of "Vertical Collapse?"
I would love to save the TV.
nothing to worry just minimise brightness to avoid screen burn.
means one bright hor.line in the middle of screen.
this problem can be solved
1 check vertical yoke connector or wire loose
2 check supply to vertical section which normally comes from EHT transformer
check components in vertical section or print loose