Repairing a Nizo 4056?

[Leviathan]

Has anyone done it?

Mine just quit on me...last weekend to be precise. Which is rather annoying considering I still have 12 carts of K40 to shoot.

Anyway it seems to be an electrical issue of some kind, when I press the master power switch (on the back of the grip) the film advance motor starts up right away, and when I press the trigger it does nothing at all. And for the really weird part, the odd time just as I press the master power switch I can hear both the film advance motor and the shutter going, then the shutter will quit and just the film advance motor will keep running.

Any insights anyone? Have any of you ever repaired one of these? Anyone know of anyplace I can find a wiring schematic for this thing? I'm reasonably electronics savvy, and I'm sure if I kinda knew what I was looking for I could probably fix it. But I'm not real keen to go digging around in there without some kind of plan. Any help would be great.

Thanks,

Leviathan

[camera8mm]

I have a nizo 2056 i sent to a nizo repair tech in calfornia. Not sure if the reapir shop is still there.
They wanted $200.00 to service and replace the motor. I decided it wasnt worth it and they are sitting on the shelf.
the electronics look complicated.
Kino Video in germany is listed to do nizo repair work.
google it or look under the 8mm metadirectory.

[Mitch Perkins]

Anyone know of anyplace I can find a wiring schematic for this thing?

I swear I saw a schematic right there on the inside of the right side panel of a Nizo once. Five screws are all that stand between you and finding out if I'm wrong. While you're in there, you might see something obvious.

Sorry I couldn't offer more..

Mitch

[Bru]

If your handle is a folding type, then it could be a frayed wire making intermittent contact. Else, dirt build-up on the contacts themselves. Either you have the money for a professional job, or you have a go yourself (if it is dead, then it is useless anyway). The symptoms sound like the fault is related to the operating switches, rather than a dodgy PCB. It is heart-in-mouth stuff (I resuscitated an S480 earlier this year). Just note the positions of buttons/switches prior to disassembly, select a workspace where you can leave the whole mess for another day if need be and remember - someone put it together the first time, so you can too.

[Mitch Perkins]

If your handle is a folding type, then it could be a frayed wire making intermittent contact. Else, dirt build-up on the contacts themselves.

From Leviathan's description, it sounds like there is always *some* power, so I'm not sure if this fits the bill.

(if it is dead, then it is useless anyway).

Not necessarily; once the problem is identified, there are workarounds, even given dead components. I have some 6080 parts...

The symptoms sound like the fault is related to the operating switches, rather than a dodgy PCB. It is heart-in-mouth stuff (I resuscitated an S480 earlier this year). Just note the positions of buttons/switches prior to disassembly, select a workspace where you can leave the whole mess for another day if need be and remember - someone put it together the first time, so you can too.

Good advice. Let us know how it goes, Leviathan.

Mitch