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Power pack for flash: Sunpak TR-2000

 
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conurus
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Location: Vancouver, Canada

PostPosted: Sun May 04, 2008 7:21 pm    Post subject: Power pack for flash: Sunpak TR-2000 Reply with quote

Although the Sunpak battery pack has a 7 pin DIN connector similar to the one used by Quantum Turbo, the pin assignments are not exactly the same. Refer to this article for DIN plug numbering:

http://www.electronics2000.co.uk/data/pinout/dincon.htm

Quantum Turbo pin assignment:
pin 1: low voltage (around 8V)
pin 2: charger (24V DC)
pin 3: blocked; plug will not fit unless this pin is removed
pin 5: high voltage
pin 6 & pin 7: ground
shield: ground

Sunpak TR 2000 pin assignment:
pin 3: low voltage (6.19V)
pin 5 high voltage
pin 6 & pin 7: ground
shield and all other pins: not connected

Using Sunpak TR-2000 to power Metz 54 MZ-3

The power switch of the flash itself is supposed to be turned off while the battery pack is in use. The battery pack supplies both high voltage for the flash capacitor and low voltage for the computer to the flash.

I am not sure if the low voltage from pin 3 supplies enough current to drive all the computerized functions of the flash including autozoom. Sunpak may have deliberately moved the pin - I am not sure.

The Metz connector has 3 pins. Counting from the top
pin 1: low voltage input (will charge through flash's own step up circuitry)
pin 2: ground
pin 3 (seperate): high voltage

Metz will give an error on the display if the power pack and the flash unit are both turned 'on'. You are supposed to use only one at a time. Also, you cannot supply low voltage by the flash's own AA batteries while high voltage is supplied externally. The flash will also give an error for that.

Using Quantum Turbo 2x2 with Sunpak-brand 2-pin cable

A Sunpak 2-pin cable bought from Quantum works with Quantum Turbo 2x2, but a Sunpak 2-pin cable bought from Sunpak does NOT. 2 changes need to be made to the Sunpak-brand cable:

1, Shield has to be connected to ground, i.e. pin 6 and 7. Use a thick wire.
2, pin 3 will have to be removed from the DIN connector.

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