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Hantarex polo 25-28 multisync horizontal with control (SOLVED)
perjmolsen:
Well... now I also have lost my red...only blue left :dizzy:
I could wiggle the big resistor to the red R526, then I could get the red back, so I reflowed it but no luck.
Pulled out the resistor and checked it, it still fine = 6K8
When I has the monitor on, the resistor to the red gets really hot...? what can cause it to get so hot?
I have also checked the BF859 on the red gun, thats fine
perjmolsen:
--- Quote from: princess prin prin on January 22, 2020, 05:32:55 am ---
--- Quote from: perjmolsen on January 21, 2020, 05:43:08 pm ---I have now put in a new LM1203 - still no green
--- End quote ---
But checking voltage will tell you if the signal is present or not so you know if you have to look ahead in the circuit or back.
--- End quote ---
OK, I will check the volt :cheers:
perjmolsen:
LM1203
Green
Pin 6 in = 2.3V
Pin 25 out 3.6V
princess prin prin:
Green out is pin 20.
perjmolsen:
Hi :cheers:
Fu*k :censored: me sideways... and call me eddy! :banghead:
I have now all my colors back! :applaud:
1. The missing green removed all the solder on T504, and cleaned the area with alcohol, solder T504 back and - blue color!
2. The missing red.. well... between T502 and R503 there where NO connection, I could not see that it where a bad solder connection, but my multimeter showed OL
Ran a jumper, and RED where back! -> and now the big R527 resistor does not get so hot as before, so it where caused by no connection.
So back to my curved image... but I think that I might solve that one day also :laugh2: