| Author |
Message |
    
Jrcarden
Tinkerer
Username: Jrcarden
Post Number: 2
Registered: 10-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, October 24, 2007 - 11:02 am: | 
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I have a Vivitar 285 with burned up capacitors on the main board. I also have a perfectly functioning 283. Can I swap the main boards between the two flashes so I can have a functioning 285?
Thanks,
Jim C. |
Dgillette4
Tinkerer
Username: Dgillette4
Post Number: 102
Registered: 04-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, October 24, 2007 - 11:10 am: |
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I believe they are the same. The 285 also had a hv connection for a fast recycle. Compare the component layout on both units before starting a swap. If all the polarities and parts are same it's worth a try. Is there any one out there who has done this? I have a 283 unit without the shoe you can have for $5 plus shipping. Let me know how the two units campare? Don |
Paul_ron
Tinkerer
Username: Paul_ron
Post Number: 81
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, October 26, 2007 - 04:54 pm: |
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Check out this site for some interesting experiments using a 283 and how to hack the flash as well. http://hiviz.com/activities/guidebook/eg_sectionI.html |
Jrcarden
Tinkerer
Username: Jrcarden
Post Number: 3
Registered: 10-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 27, 2007 - 08:22 am: |
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Thanks for your help. I will make some time this weekend to compare the guts of the 283 with those of the 285 and I will report my findings here. I hope it will be as simple as swapping circuit boards.
Don - If the comparison is favorable and the transplant successful then I will take you up on your offer of a working 283 as I should end up with a spare foot to replace the broken one on yours.
Paul - Thanks for the link. Eventually I will try to mount a potentiometer to the sensor port so I can dial in the flash duration--ultimate control. I think my biggest challenge will be to make it look halfway decent and not like some reject from the Frankenflash factory.
As I proceed I will take every precaution not to allow the magic smoke to escape the electronics.
--Jim C. |
Jrcarden
Tinkerer
Username: Jrcarden
Post Number: 5
Registered: 10-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 06, 2007 - 01:48 pm: |
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I finally dug in and found that the circuit boards are quite different between the 283 and the 285. It was not going to be a straight across move so I called off the transplant.
Thanks for your help.
Jim C. |
Dgillette4
Tinkerer
Username: Dgillette4
Post Number: 111
Registered: 04-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 06, 2007 - 03:03 pm: |
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Jim: I still have the 285 with removable sensor and extension cord. If I can put my hands on it you just pay postage. Don |
Jrcarden
Tinkerer
Username: Jrcarden
Post Number: 9
Registered: 10-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, December 05, 2007 - 05:04 pm: |
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Don - I'd be happy to get the broken 285 (etc) for the cost of postage. Tell me how and where I can send you the money, Paypal? USPS Money Order?
Thanks,
--Jim C.
jrcarden at comcast dot net |
