Picked up this beautiful sansui 27" the other day!
I have a question for y’all though. I was a complete idiot, and had this in my hatch back. I was on a hill and started off and I did not have the TV as stable as I should have and it tipped face forward and hit my back window pretty hard at about 45 degree angle (amazingly nothing broke). I was terrified I broke it but thankfully it works fine, except that when its a cold startup it has horizontal Lines on the top 4" or so. After about 5 minutes they Go away . I’m almost positive this is my fault although maybe it was already doing that, previous owner didn’t say ofc. I’m wondering, is there a fix for this or should I leave it? Will it get worse overtime ? I’m not new to electronic work (guitar tube amps, tape machines etc) but in this situation I’m not sure the best way. (Pic is when warmed up)
RightHandOfIkaros@lemmy.world 15 hours ago
The only thing that could have happened really is the yoke could have become misaligned if the tape that holds it to the tube was not holding very well. The convergence rings have lockrings on them that usually wouldn’t be effected by a hit or drop, but if they were loose they could shift as well.
The potential damage could range from slightly misaligned colors (convergence) to geometry warping (caused by yoke misalignment). To fix either of these you would likely need to open the TV to service it manually, which you should do anyways to adjust the focus potentiometer and the H/V Width potentiometers to reduce overscan. Only do this if you are comfortable with line voltage and have insulated electricians tools + gloves, as the TV must be plugged in and on top make adjustments. If you arent comfortable or cant be safe, you will just have to live with whatever you cannot fix with the service manual alone.
Most likely, nothing really changed. Unless it was hard enough to crack the plastic shell, it probably didnt do much of anything to the internals, unless it had a built in VJS or DVD player, as those can be more sensitive to kinetic shock.
bridgeenjoyer@sh.itjust.works 8 hours ago
Yeah I’m likely gonna have to replace the cap someday. I’d like to adjust those pots too. I’m not too keen on opening one up but I’ve worked on tube Amps and house electricity before so I’m not too concerned if I’m careful.