Sanyo VHR-495 VCR picture problems?
 

Hello, I'm new to the forum and I'm not sure if this topic is correct. I'm having a problem with a Sanyo VHS video player, model VHR-495. The problem is that the image quality is very poor. There's a lot of noise and defects. I've replaced the head with a brand new one, but the problem persists. The original head was a 2N4P-R, which is apparently the same one used by many Sony players. However, the head I purchased is a 2N4P-Q, and I'm not sure if it's a different letter that implies any difference in its technical specifications. I've also tried adjusting the tracking with the carriage screws, cleaning all the heads, and adjusting the tracking with the +/- buttons, but the result is the same. I'd like to know if I need to calibrate something else or if there's something I've missed.

I don t understand what u did precisely and no pictures of the noise (or videos )attached. You changed the upper drum or the whole drum i guess.

Without video samples no one will be able to help you.

I've been running several tests and discovered that the cylinder's internal coils are loose, as if they've lost the glue that holds them to the magnet. This causes them to touch each other when rotating. I've tried gluing them together and have reduced the amount of noise, but they still touch, and some noise lines are still visible. I've also tried separating the transformers with another washer, but the separation is too large, causing the image to jump.