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hantarex polo 28 blows fuse
perjmolsen:
Found it :applaud:
perjmolsen:
The R103 where OK
So tested the next component D105 it conducts both ways
And if I test it in my china tester i get a starnage reading, so it is bad.
Is a ULTRAFAST MUR 460 - 600V 4A
I do not have a ULTRAFAST MUR 460 in my component box - can it be replaced with a normal 600V 4A diode?
princess prin prin:
Your pics shows the bridge rectifier diodes are BY255 which is also what the manual says. You could also use a 1N4008.
perjmolsen:
Hi
The pics above that shows the four bridge rectifier diodes is all OK.
The diode that is dead is D105 - the diode is mounted close to the T101 transistor , I have changed the transistor to a new IRFBC30
I am waiting for the D105 diode (ULTRAFAST MUR 460) to arrive... My order is in my country, so now i am just waiting for the local post office :applaud:
perjmolsen:
Update
Replaced the diode D105 with a new ULTRAFAST MUR 460
Now the fuse blows again :( and no volts are at TP6 testpoint
If i follow the chart below.. then i need to change IC101 (UC3842)I have that chip in my parts boxes
and test the diodes D105 to D112
Attahced a picture all the components that are marked red are changed