Thank you AlbieR1
Can I ask you, do you know if the silver model has the same issue with ground, where some paint needs to be scraped off? I have not read about this.
You want good electrical contact at the locations on the underside of the hot-shoe rails shown in red in
this link . I wouldn't think Sony would need to paint the hot-shoe on silver A6000 units but don't know this first hand. The paint issue typically involves the black model.
Finally can you go through the motion with me.... Trying to figure out if there is a specific order... Humor me.
1. A6000 and Rf603c II both OFF
2. Slide the Rf on the A6000
3. Turn the A6000 ON, then slide side switch on Rf 693 to TX, not TRX Turn flash ON. Should both lights be Green?
4. The external flash I and other Rf603c II are already ON.
Is thus correct?
Best regards
Denis
The LED indicator behavior for remote flash triggering is described in my complete YN RF-603 Mark II trigger trouble shooting procedure attached below.
If you are concerned about the power on sequence although it's probably best to attach accessories while the gear is off, I am not aware of (or have experienced) any issues with the powering on sequence with YN RF-603II triggers.
Trouble shooting YN RF-603II flash triggers
This process starts at the flash and confirms things are working as you progress toward the camera. When the flash doesn't fire as some point you have an indication of where the chain is broken.
1. Mount your flash on camera and set it to work in manual power operation. Take test shot confirming flash and camera's flash sync circuit are working.
2. Mount flash on trigger without changing any settins on flash or camera. (trigger acts as an extension of the camera's hot-shoe). Set trigger side switch to "TX" and press test button on this trigger. RH LED is green upon half-press, red upon full-press and the flash should fire. Now set side switch to "TRX". Switch setting is critical. See "Understanding the RF-603II side switch" in the notes section below.
3. Take the other trigger in hand and set its side switch to "TX". With its test button half-pressed both units RH LEDs should be steady green. With full-press both RH LEDs go red and flash should fire confirming RF transmission is working.
4. Now on the foot of this hand held trigger short the center pin to the metal foot ground plate. By "short" I mean take a metal object and hold it against the metal foot plate and slide it forward to touch only the center pin. The RH LEDs should go red and flash should fire. (Shorting the center pin simulates the action of the camera's flash sync circuit) If this was successful your triggers are working correctly. If not you have defective units.
5. Now put the hand-held trigger in your camera's hot-shoe. A half press of the shutter button won't do anything unless the trigger is the correct variant for your Nikon/Canon camera. In that case a half-press should give green on the RH LEDs of both units until the exposure meter times out. With any camera a full press of the shutter should produce a brief red LED on both units and fire the flash. A problem here would indicate a poor electrical connection still exists between the camera's hot-shoe and the trigger.
Notes:
Above process assumes both transceivers are on same channel, fresh batteries, all electrical contact points have been cleaned with a soft white pencil eraser, flash is fully seated in hot-shoe and your flash hasn't gone into standby/sleep mode.
Understanding the RF-603II side switch:
"TX" -> Test button fires flash, unit transmits only
"TRX" -> Test button activates shutter release circuit, unit transmits and receives
I hope this helps.
