Main > Monitor/Video Forum
Sony PVM-2130QM - Color RED bleeds and is blurry.
Zebidee:
Yeah my suggestion earlier about swapping colour drive transistors is generic advice rather than specific to this model. Same advice still applies but clearly you have several transistors involved for each colour which complicates things a little.
You might try checking voltages available (expected values are on the schematic) to see if there is a voltage regulation issue.
Sent from my iPhone using Tapatalk
arcadeswede:
--- Quote from: buttersoft on August 07, 2020, 01:44:42 am ---Do both the "screen" control RV701 and the sub-brightness control RV706 on the neckboard work normally, out of interest?
--- End quote ---
Yes, they do!
Ok, I'll try order up some metal-film resistors for 702, 703, 704 and 706 and swap em' out.
Thank you guys! Both you buttersoft and Zebidee.
I've been posting this on multiple forums/facebook groups but no on has giving me this type of answers and knowledge. I really appreciate it!
buttersoft:
Just remember this isn't a guaranteed fix! If it doesn't help, hopefully we can think of something else to try :)
arcadeswede:
--- Quote from: buttersoft on August 07, 2020, 06:02:30 am ---Just remember this isn't a guaranteed fix! If it doesn't help, hopefully we can think of something else to try :)
--- End quote ---
Yeah, of course!
Could this also be a symptom of just a tired monitor overall even though blue and green looks ok? I haven’t seen this issue before with just one color so I’m really scratching my head.
buttersoft:
--- Quote from: arcadeswede on August 07, 2020, 06:20:11 am ---Could this also be a symptom of just a tired monitor overall even though blue and green looks ok? I haven’t seen this issue before with just one color so I’m really scratching my head.
--- End quote ---
If you mean tired tube, there, then probably not. The repair wizard Zeb consulted once said he'd have expected the blue cathode to wear out first. It could possibly be the cathodes oxidising, which generally calls for a rejuvenator. But the tubes Sony used were great quality, so it's far more likely to be voltage-related as above.