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Hantarex Polo/2 25-28 Dead - how to test B+ (SOLVED)
perjmolsen:
--- Quote from: grantspain on January 17, 2020, 07:33:16 pm ---look at all the diodes in the horizontal circuit
--- End quote ---
Hi Grant
Do you know where D31 is on the chassis.. I am unable to find it :dizzy:
I have checked D27,D28 D38 and they are fine
grantspain:
check the width transistor
perjmolsen:
--- Quote from: grantspain on January 18, 2020, 06:06:59 pm ---check the width transistor
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It is the T19 right the bdx53a? - its tests also good
grantspain:
just checked a polo 2 28 15khz chassis here
C101 3.3NF 1600V
C86 4.7K 250V
C99 8.2NF 1600V
C97 .33 250V
D44 BY288
D47 BYV95C
perjmolsen:
--- Quote from: grantspain on January 19, 2020, 05:17:23 am ---just checked a polo 2 28 15khz chassis here
C101 3.3NF 1600V
C86 4.7K 250V
C99 8.2NF 1600V
C97 .33 250V
D44 BY288
D47 BYV95C
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Well I have found the issue... its my fault :banghead:
C97 - I had put in a 333J cap, it should be a .33 cap.
Changed it, and now the picture looks better :applaud:
But the picture is to wide and I am unable to adjust it.
So I am thinking that the C96 is the issue.
Currently I have a 472J cap in.
If I change it to a 4.7uf the picture is to small....