i have finished tht tu 8600 kit , test all point voltage is ok
but left side 300b tube brightness was decreased and off after 20~30min,
still left side channal sound was hearing, just decreased sound and some noise were found, no test all voltage again, all left side voltage was decreased and not normal, so someone know , what is wrong (i have resoldering left side 300b set due to disoritension, one soldering part was mild dissection; have to check all soldering part wall, no cold soldering), reoperation tu8600, initinally 20~30min, all is ok and voltage is ok, but then, the same symptom was found, someone can halp me , thanks
but left side 300b tube brightness was decreased and off after 20~30min,
still left side channal sound was hearing, just decreased sound and some noise were found, no test all voltage again, all left side voltage was decreased and not normal, so someone know , what is wrong (i have resoldering left side 300b set due to disoritension, one soldering part was mild dissection; have to check all soldering part wall, no cold soldering), reoperation tu8600, initinally 20~30min, all is ok and voltage is ok, but then, the same symptom was found, someone can halp me , thanks
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