Dicas Reparação HITACHI
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Hitachi | G6P | Dead - low res between base - emitt of Chopper transistor Q901 | CP901 control/drive module HM9205 has s/c between pins 5 & 6 | ||
| Hitachi | G6P | Dead | Q901 or dry joints on heatsink tag for T721 | ||
| Hitachi | G6P | Dark pic with red flaring | Low A1 volts caused by contamination on crt base pcb | ||
| Hitachi | G6P | Corrugated verts | C905 & C910 4µ7 50v | ||
| Hitachi | G6P | Colour int goes off | IC501 HA51338SR pin never soldered | ||
| Hitachi | G6P | Colour - looks a bit pale. | Q856 ( 2SC2271 ) | ||
| Hitachi | G6P | Bright white raster which trips aft 30 secs | R771 o/c & D763 leaky in RGB supply | ||
| Hitachi | G6P | Bright white raster - only 20v at RGB colls | ZD301 12v zener on main pcb | ||
| Hitachi | G6P | Bright green raster with flyback lines. When the | A new cbip restored everything to normal. | ||
| Hitachi | G6P | Blank white raster with fb lines | Q301 2SA673C s/c,replacement restored pic but no OSD & red fb lines; M50450-023P micro | ||
| Hitachi | G6P | Blank raster, no sound | IC932 12v reg o/p low, C933 2200µ 25v | ||
| Hitachi | G6P | BLANK RASTER , NO SOUND | C933 2200mfd , 25v ALSO CHECK 12v REG OP. IC932 | ||
| Hitachi | G10Q C2564 etc | Repeated failure of E/W diode D704 BY228 which causes tripping & blowing fuse F902 | Also replace Q651 BU801 pt no T636046 & Q652 BC548B, L651 filter coil pt no 2220642 (goes shorted turns) | ||
| Hitachi | G10Q C2564 | Int start up | C927 470µ 25v in 12v line | ||
| Hitachi | G10Q | trips until heated | ZD945 BZV10 - normally reads o/c both ways |