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The Vivitar 285 HV is specified to have a trigger voltage of 12V. The Nikon DSLRs are specified to be safe up to 12V. This puts the combination right at the fuzzy point. It should be safe, but if the flash goes a little high while the camera goes a little low, you might run into trouble.
TR 2000 gives two output ^ volt and 330 volts. Whereas 285 HV uses 6 volt and 110 volt AC http://www.bhphotovideo.com/bnh/controller/home?O=details_accessories&A=kitInfo&Q=&sku=638035&is=REG I am running my 285HV with external 6volt battery pack.sort of this type. http://cgi.ebay.com/6V-1-3AH-SLA-Sealed-Lead-Acid-Rechargeable-Battery_W0QQitemZ390166216699QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item5ad7b7fffb I added 2 standard diodes in series (IN4001 type) and placed inside the dummy battery pack which reduces some voltage and safeguards against wrong polarity. more details? firstname.lastname@example.org
You don't need a Manual. In 285 HV there is only one Power on/off switch. If that switch is on and batteries are new Alkaline (like duracell-no chepo )or fully charged and working rechargebles,and yet the ready light do not come the flash has defect inside.For sure.
If you know basic soldering, Open the old hot shoe from base (4 screws).Note down the position of the wires. Try to fire the flash with shorting two trigger wires,most ly it will fire. If the springy contact is adjustable do it.If it is not repairable, you can get metal hot shoe from ebay easily. Caution: metal hot shoe will short circuit 4 TTL contacts (on digital camera) ,so you need to put cello tape at bottom of hot shoe with only center hole. Hope this solves.