Dicas Reparação HITACHI
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Hitachi | C2114T | Dead with 330v at chopper tr | R901 82k start up res o/c | ||
| Hitachi | C2114R | Still dead aft replacing psu comps blown (HT OK) | IC601 TA8427K fop chip faulty | ||
| Hitachi | C2114R | Pic displaced to right | Clipper diodes D704 & 703 1N4531 | ||
| Hitachi | C2114R | Bright green raster with flyback lines | Crt faulty (s/c within tube) | ||
| Hitachi | C2114R | At switch on the raster would turn bright green wi | but this time the blue gun was aftected. | ||
| Hitachi | C2086 | Service Mode | press and hold down the TV/VIDEO key and then press power switch | ||
| Hitachi | C2086 | Goes into prot mode | Syscon chip pin 36 leaky - replaced Z90234 | ||
| Hitachi | C17P118 L | Standby - going into standby intermittently | Drys on transformer M600 , crack from pin 1 to D709. | ||
| Hitachi | C1719T | Dead | C906 4µ7 250v, ZD903 P6KE130 & check R902/3 82k & C908 33µ | ||
| Hitachi | C1714TE -A15 chassis | To acess service menu | press the following buttons on the remote: 4 4 STATUS MUTE TV in that order and fairly quickly. The service menu is displayed. Check that BYTE 1 = 7D; BYTE 2 = 20 These are two hex digits - to exit menu press st/by | ||
| Hitachi | C1714TE -A15 chassis | No Txt & delay in returning to st/by | Check 5v supply pin 44 micro - if low ZD4001 5v1 zener is sus | ||
| Hitachi | C1714T etc | Field o/p chip repeatedly fails | Replace ic 601. get two 33v Zener diodes and connect them in series ( BZX79C33V) connect the anode to pin 1 of ic601 cathode to pin 2 of ic 601. Fit 10nF 50v capacitor across the frame scan plug E701 on print side of the plug. If the ic still blows after this mod. a new CRT is required. The tube is flashing over. This applies to all sizes of 14T/TE range of sets | ||
| Hitachi | C1714T | St/by only | Dis supply to fop chip to check if this is cause - if then ok apart from field collapse, check fop chip TA8427k & D702 | ||
| Hitachi | C1714T | Pic size decreases with brightness | HT low - CNX82A opto coupler IC901 s/c pri | ||
| Hitachi | C1646 | DEAD , FUSE BLOWN | CHANGE Q903 -T 633133 , Q901 - 2390022 , IC901 T900406 ZD903 T536171 ZD904 - T 536171 , ZD901 - T 536197 |