Panasonic NV V8000 - Brightness Problem - UK Vintage Radio Repair and Restoration Discussion Forum

promoter2000 · 24th Feb 2017, 11:14 am

I just recovered two VCRs S-VHS Panasonic NV V8000 off for years for the usual problem of the capacitors (both in play black screen). In particular, I replaced a 10uF / 50 V inside a metal box on the HQ PACK card (VEP03775A) and all 13 capacitors contained in the metal PACK CCD welded on Y / C SEPARATION PACK card (VEP03776A). Now the read images are back on both but I have noticed, on both devices, a small but perceptible problem pumping brightness: in essence the image is suffering from a slight (but noticeable) pulse of light. Since the electrolyte that I changed were completely closed in these metal boxes now eliminated I'm thinking that this is due to some strange intermittent electromagnetic interference no longer screen the metal walls of the deleted box. Someone who knows these machines can tell me if my belief is correct? If the pump is due, indeed, to electromagnetic interference as I could eliminate them? Thank you all.

24th Feb 2017, 11:14 am	#1
promoter2000 Triode Join Date: Feb 2017 Location: Mantova, Italy. Posts: 18	Panasonic NV V8000 - Brightness Problem I just recovered two VCRs S-VHS Panasonic NV V8000 off for years for the usual problem of the capacitors (both in play black screen). In particular, I replaced a 10uF / 50 V inside a metal box on the HQ PACK card (VEP03775A) and all 13 capacitors contained in the metal PACK CCD welded on Y / C SEPARATION PACK card (VEP03776A). Now the read images are back on both but I have noticed, on both devices, a small but perceptible problem pumping brightness: in essence the image is suffering from a slight (but noticeable) pulse of light. Since the electrolyte that I changed were completely closed in these metal boxes now eliminated I'm thinking that this is due to some strange intermittent electromagnetic interference no longer screen the metal walls of the deleted box. Someone who knows these machines can tell me if my belief is correct? If the pump is due, indeed, to electromagnetic interference as I could eliminate them? Thank you all.