Metz MECABLITZ 58 AF-1 N digital Mode D'emploi page 113

This will not affect the firmware updates for the flash unit.
22.3 Flash capacitor forming
The flash capacitor built into the flash unit undergoes physical change if the
unit is not switched on for a prolonged period. For this reason it is necessary
to switch the unit on for approximately 10 minutes at least once every three
months. The power supplied by the power source must be sufficient to cause
the flash readiness indicator to light up no more than one minute after the
flash unit is switched on.
23. Troubleshooting
Should the flash unit fail to function properly or meaningless content
appear on the flash unit display panel, switch the flash unit off with
the main switch for approximately 10 seconds. Check the camera
settings and make sure the foot of the flash unit is mounted correctly
in the camera's accessory shoe.
Replace the batteries with new or freshly charged batteries.
The flash unit should function normally again once it is switched back on. If
this is not the case, contact your local dealer.
Below is a list of some of the problems that may occur when the flash unit is
used. For each item, possible causes and remedies for the problem are
listed.
No maximum flash range indication appears on the display panel.
• The main reflector is not in normal position.
• The flash unit has been set to remote operation.
The AF measuring beam of the flash unit is not activated.
• The flash unit is not ready for firing.
• The camera is not in Single AF mode (S-AF).
• The camera supports only its own internal AF measuring beam.
• Some cameras support the AF measuring beam in the flash unit only with
the camera's central AF sensor. If a peripheral AF sensor is selected, then
the AF measuring beam will not be activated in the flash unit. Activate the
central AF sensor.
The reflector position is not automatically adjusted to the current zoom
position of the lens.
• The camera is not transmitting any digital data to the flash unit (Group A
cameras).
• There is no exchange of data between the flash unit and the camera. Tap
the camera's shutter release.
• The camera is equipped with a lens without CPU.
The aperture setting on the flash unit is not automatically adjusted to that
of the lens.
• The camera is not transmitting any digital data to the flash unit (Group A
cameras).
• There is no exchange of data between the flash unit and the camera. Tap
the camera's shutter release.
• The camera is equipped with a lens without CPU.
The indicator for the zoom position of the reflector is blinking on the
display panel.
• Warning of shadowing on the edge of the image: The focal length set on
the camera lens (converted to the 35 mm format, 24x36) is shorter than
the adjusted zoom position of the reflector.
The secondary reflector cannot be activated, or no flash is triggered.
• The secondary reflector does not support the stroboscopic, remote and
modelling light (ML) flash modes. In these modes the secondary reflector
cannot be activated, or the secondary reflector does not trigger a flash.
TTL
The TTL fill-in flash BL cannot be set.
• There has been no exchange of data between the flash unit and the
camera. Tap the camera's shutter release.
• The camera does not support TTL fill-in flash mode.
• The camera is switched to spot metering. Choose another metering type,
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