Recent content by sadmetz76

too much things to do , luckily i got a quite nice sony F56 flash to help me out during the repair of the 76 . unfortunately , metz 45 are not of any help ( got several of those oldies )

@ koraks , no time for futher testing yet . i need an empty workdesk to do that , and right now other repairs do cover up my space . will post if i found time to do some testing

Hi forum , so i finally managed to open the cap holder , so , as i can only see the cap looks okay at 3300 uf , it was 0 Volts . what will repair this flash ?? any help highly appreciated . osc. at hand

@ shutterfinger do you have more schematics to metz flashes ? 45ct5 would be a great help , also looking for 76mz-5

unfortunately the part of the cap i can see does not have any marking on it ................

the problem now ; how to get to the capacitor , i can open its holder a wee bit , but it certainly is not the correct way to open it as i need to put on much more force that is good for the design . i think the turning-mechanism of the head has a clever design to take away a part so the...

no measurements yet as i only was able to open it today. scope is at hand , dmm , lc-tester too . there is no charging sound at all ( the typical whining ) , and no flash-ready light . the rest of the flash seems to be working ( zoom and the camera adapter/keyboard ) there is no green and red...

i don't like working without schematics , but with your help we slowly go forward :smile: if only i could get the capacitor-holder to open ..............

red looks here , but brown is hiding

i would like to get access to the main cap . that part of the disassembly is rather unclear and it interlocks in a rather specific way ( unfortunately ) . if i could open its compartment it would be possible to measure . helaas niet open te krijgen

long capacitor next to bipolar transistor ; metz 331 48 0017 measures around 145 uF

Koraks , the sticking up component is a ; G4BC40W-L bipolar transistor specific for switch mode power applications the similar component on the other side of the capacitor is a ; 8G103 bipolar transistor specific for flash applications The ptc is an ; RGEF800 resettable fuse -...

Now , how to get to the capacitor ( which has NO load ) without damaging the plastic structure Is there another hidden screw ?? again any help highly appreciated . does anyone have the schematic ?

i managed to open the unit without damaging it , turns out the capacitor is in the head . now to find out the way to get it out . i have made numerous pictures , so if someone is interested download the zip .

My older 76mz-5 refuses to flash anymore . No smell , No charging-noise ( the typical charging sound ) , No flash , No bang , control unit is working , albeit without the red and green indicator NO flash-ready indicator . capacitor failure ? after all those years highly possible . can it be...