Amiga 4000D boot Light Gray Stopped Display in DB23 RGB help !

Hello , sorry for my bad English, I have a Amiga 4000D with toaster video, flyer, Tbc, CyberStorm PPC, Cyber ​​Vision 64 etc.The Amiga stood for a long time, for security removed the battery.. I'm electronic technician, before you turn it decided to replace all capacitors on the main board, after repair,power on the main board /cyberStorm with monitor 1084s , appeared the picture insert disc, after something strange ocorred , now when connected, I see flashing image and turn light gray all time, put a disc floopy drive and Cf card with OS 3.9 , the computer accesses the Cf card and floppy disc normally, I can hear the disk in demo music play .. I decided to put the expansion Zorro with cyber vision board 64 and VGA monitor plugged into scandoubler ,, to my surprise now see the image of 0S3.9, but only with 4-color pallete, I can not change anything in the color palette, I received an error message - Program failed - error # 800000004 - wait for disk activity to finish ....... boot through the the floppy drive the colors are perfect , with demo disc ... removing the cyber vision board zorro , no appears image of the port DB23 of the main board, another situation, pressing on both mouse buttons Early boot menu" after startup video, the menu no appears , the video disappears in scandoubler .. black screen , I'll be grateful for any help .., I'll be grateful for any help ..

[SkulleateR]

So if you boot a game or demo from floppy everything is working ? Full colors on RGB output ?