hitachi C1714T Repair Tips
Search: C1714T hitachi
Results 6
Results 6
| Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
|---|---|---|---|---|---|
| Hitachi | C1714T | Frame collapse, causing set to go dead, also can cause the regulator transistor, to go s/c. BUT12AF. H.T. unstable | Check R951 39K goes high, in this case 65K, causing HT to go high | ||
| 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 |