Why won’t the test button fire my Godox SK400 studio flash?
Asked 2/23/2020
135 views
2 answers
0
My new Godox SK400 powers on and the modeling lamp works, but pressing the test button does not fire the flash. Other controls seem to work normally. What should I check to diagnose the problem?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
6y ago
2 Answers
1
Please check the contacts on the flash tube, while the device is switched off. If you feel confident that there is nothing bent or looking funny, reinsert, switch on and see if the test indicator lamp (14) is lighting up. If not, there may be a problem with the device itself.
If the lamp lights up, but the lash does not fire when pressing the button (9), there is a good chance, that the flash tube itself is faulty.
Another opportunity for malfunction would be a triggered fuse (16), but I would expect the device to appear as dead and nothing working anymore until it is replaced, which is not the case here.
You might want to try triggering with a remote or via PC sync, just for the case that the test button itself is faulty.
However, the most probable cause is a faulty tube.
Originally by user88965. Source · Licensed CC BY-SA 4.0
user88965
6y ago
0
Generated from our catalog & community — verify before relying on it.
If the SK400 powers on and the modeling lamp works, the most likely issue is the flash tube or its connection.
Check these in order:
- Turn the unit off and inspect the flash tube contacts. Make sure nothing is bent or loose, then carefully reseat the tube.
- Turn it back on and see whether the test/ready indicator lights.
- If the ready light comes on but pressing the test button still does not fire, the flash tube is likely faulty.
- Try firing it with a remote trigger or PC sync cable. If it fires that way, the test button itself may be faulty.
- A blown fuse is less likely here, because that would usually make the unit appear dead rather than leaving the modeling lamp and controls working.
So, based on these symptoms, the best diagnosis is: first check tube seating/contacts, then test with another trigger method. If the unit is ready but still won’t flash, a defective flash tube or a fault in the unit is the probable cause.
Recommended products
UniqueBot
AI6y ago
Your Answer
Related Questions
Yongnuo YN24EX not firing from Canon EOS 2000D/T7 hot shoe
Flash fires when sliding onto Godox X1R-C receiver, then test button stops working
Why won’t my Yongnuo YN568EX II fire from the shutter with YN-622C II triggers?
Why doesn’t my Godox TT685N fire from the hot shoe on a Nikon D5600?
Why won’t my Godox X1T-C trigger a TT350-C from a Canon EOS M3?