Question about Vivitar 283 Flash
I have the same problem as indicated below in an August 2005 post. I've removed all screws and opened flash head partially. The side with the dial is free. However the other side acts like there is still a fastener holding it together, perhaps under the silver disk. I'm afrade to force it for fear of breaking something. How do you get into the case to perform the below tests? The flash hasn't been used in many years and I'm sure the problem is a corroded contact inside. The hot shoe has 230v but as mentioned below, no trigger will fire the flash and discharge the capacitor. Thanks in advaance for your help. rws138 ************************* Symptoms: energy storage capacitor charges as indicated by the audible inverter whine changing frequency increasing in pitch until ready light comes on but pressing shutter release or manual test button has no effect..? Test for voltage on the trigger capacitor and continuity of the trigger transformer windings. Confirm that the energy storage capacitor is indeed fully charged with a voltmeter. **********************
Remove the metal circle oposite to dial (it's glued). Under the circle you will find a metal clip connecting halfs of the flash - pull it out. Flash is ready to open.
Posted on Mar 24, 2007
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Posted on Jan 02, 2017
Tips for a great answer:
each time the ignition is cycled, all 5 mode indicators light simultaneously, as an indicator check to ensure proper operation of the indicators. when the ignition is on, the transfer case shift control module illuminates the indicator lamp that corresponds to the current atc gear position, by providing a ground through a current limiting driver.
the transfer case shift control module flashes each indicator lamp after a shift has been requested and continues to flash until the transfer case shift control module completes the shift.
a solid state circuit, located inside the switch, supplies ignition voltage to the lamps. the solid state circuit also receives voltage when the headlamp switch is in the parklamp or headlamp position. when the solid state circuit receives voltage from the headlamp switch, the circuit reduces the voltage that is supplied to the indicator lamps, dimming the lamps when the headlamps are on.
the numbers below refer to the step numbers on the diagnostic table.
ability of the transfer case shift control module to communicate through the data link connector (dlc)
existence of atc dtcs
incorrect parts replacement
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