The machine has other repair, replaced fuse. Boot check, in accordance with its working materials, judge was a "Guang Huo". Shared 2 Toshiba (C5200/A1943), 5 to 10 (per 10000 μg F/80V) capacitors, determine its power for 70V. Check DC insurance intact, remove 220V primary insurance, see caps header "6A" words, and the residual slag insurance tube bead. Too much current, are well beyond the 6 a. Multimeter to Rx1 retaining ring primary impedance 5 ω measurement, and has a slow upward trend, according to past experience, the loop variable primary does not short circuit. Then check the rectifier and transformer secondary short circuit, leakage-free, DC insurance intact, suspect for maintenance personnel before replacing the fuse electric flow through small, then use a 8A fuse of the amplifier with replaced (internal fuse Strip, non-conventional filament) to boot, power amplifier immediately power up properly, did not see anything unusual, 3 second subsequent electrical attraction.gDyservice manual download site
gDyservice manual download site
Summary: this machine has been repaired, "failure" is simple: the original maintenance workers used the wrong insurance. Most of the main transformer power amplifier 500W, boot are very high, with TV delay insurance is difficult to cope with, used authentic large current private insurance, otherwise it will start to burn or cause irregular broken, delay used.gDyservice manual download site