Technik und Service
Seite: 42
Technology and Service
Page: 42
mecablitz 40 MZ-2
ENGLISH
Accessories included:
standard foot 301
cover plate for SCA socket
9. Service Notes:
During repairs, always observe the safety notes shown in the separate Service Manual. This Service-
Manual has already been distributed with the Technical News Letter 01/94, but it can be obtained
without problems from our spare parts stockroom in Fürth.
9.1. Service Test Set MB3000:
The Service Test Set MB3000 was designed specifically for the testing and service adjustment of
flashguns with a digital data bus and for the testing of the SCA 3000 adapters. This test set is
mandatory for servicing of the mecablitz 40 MZ-2. For further details please refer to the separate
Operating Instructions for the Service Test Set.
9.2. Disassembly and Assembly
The basic unit and the reflector can be disassembled separately. In both cases, however, check
before disassembly that the batteries have been removed from the unit and that the SCA adapter
(if fitted) and the cover for the SCA socket have been removed. The exploded view on Page 49B
can be used as an aid for disassembly.
Extension cables are available to permit the unit to be operated in the disassembled state. These
cables can be obtained as a service set under the Order No. 793 99 0177.
Disassembly of the basic unit:
•
First remove the three screws from the lower part of the secondary reflector case (47). Then lift
off the lower part of the secondary reflector case.
•
Loosen the foot PCB (46) together with the secondary reflector (44) and pull off the upper part
of the secondary reflector case (42) towards the main reflector. The cables can be threaded
out through the slot in the upper part of the secondary reflector case.
•
Remove the two screws on the lower part of the case (41).
•
Unclip the rear cover of the case (15) from the lower part of the case (41). Before removing the
rear cover of the case, we recommend securing the pushbuttons and switches with adhesive
tape to prevent them from falling out. Remove the rear cover of the case.
•
Remove the lower part of the case (41), guiding the foot PCB (46) and the secondary reflector
(44) thorough the opening in the lower part of the case.
•
Discharge the flash capacitors with a 100 Ohm/10 Watt resistor!
•
Remove the isolating foil (23) and unsolder one end of the fuse resistor R501. Unsolder the
battery compartment connections located below this resistor.
•
The main PCB can now be lifted carefully from the case, together with the control panel PCB.
•
The flash capacitors are secured in the case with double-sided adhesive tape and can be
pulled out carefully. Remove the insulating foil (26) located above the HS printed circuit board.
Release the lock of this PCB and remove it from the case.
