Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
---|---|---|---|---|---|
Hitachi | C28P759 | NO PICTURE SMELLS OF BURNING | C525 DRY 2u2 100v , IF NO EW ORDER BS208 MOD KIT FROM WVE | ||
Hitachi | C28P745VT Salora | Field distortion when heated | Flyback boost diode D571 leaky | ||
Hitachi | C2886TN A7 | When changing LOPTxs | Pay attention to type of replacement transformer; if not identical you may need to change links (see Serge) | ||
Hitachi | C2886TN A7 | St/by only but LED dim as though working (TDA8375 version) | DJ on the ground link which is located between small caps C528, C529 near the 2 X-tals X501, X502. The DJ was on the component side of the PCB. | ||
Hitachi | C2886TN A7 | Sound - int crackle | Resolder caps around sound o/p IC - build up of residue on legs | ||
Hitachi | C2886TN A7 | Pic takes long time to appear | Change R896,R897 & R898 from 150R TO 220R & set A1 to 147v at green Tr cath | ||
Hitachi | C2886TN | service mode entering | Hold down menu key until install line appears, press up & down vol buttons together until service becomes an option then follow on screen prompts | ||
Hitachi | C2886TN | No sound - pic ok | Muting Tr Q4000 turned on by micro. Put EEPROM into "E2 shipping mode" to set all settings to default cured it although had to retune. | ||
Hitachi | C2886TN | Long time for pic to appear at sw on | adjust Set H.T. to 149 volts +/- .2%, Screen ( A1 ) for 147 volts on green cathode. Picture should appear aft 5 - 10 secs after sound at sw on if still a problem change R896;897;898; from 150R to 220R | ||
Hitachi | C2886TN | Blank, black raster, sound ok | Replace ST24W16 EEPROM - to select service menu: with main menu on screen, hold vol + & - buttons on the tv until menu changes to include service option. highlight service and press vol+ to enter. | ||
Hitachi | C2874TNY | Reverts to st/by | Check IC4451 TDA7253M audio chip & R952 68k in HT preset network | ||
Hitachi | C2874TNX | Trips with red led blinking | Dry joint Q953 coll under plastic runner | ||
Hitachi | C2874TN | Int width & E/W dist | Dry joint wire link J196 between C612 & R080 connected to plug E180 via Pin 8 (EW connection). | ||
Hitachi | C2874TN | Int E-W | R751 across C758 on comp side of pcb not soldered | ||
Hitachi | C2874TN | Int dead - can come back on its own. Sometimes red/green or no LED | Dry joints on IC951, Q953, and Q956. Q953 was the worst, all connections to each leg were faulty. |