hitachi C2864TN Repair Tips

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Make	Model Ch.	Symptom	Problem Solution
Hitachi	C2864TN	Psu in slow trip. 630mA fuse on E/W panel blown	Top E/W diode leaky D704 BY228
Hitachi	C2864TNZ	Slow or no start up	C909 470µ 25v
Hitachi	C2864TNX	Dead aft EHT rustle & led single blink at sw on	HT checked on dummy load at 170v (149v). Int set HT pot VR930; R509 1R 1/2w safety res by LOPTx o/c; IC800 RGB o/p chip & C821 4µ7 250v faulty also.
Hitachi	C2864TN	Slow tripping/partial field coll/blank raster/no sound	R609 1R fusible o/c - also replaced TDA8178 Field o/p IC as a precaution
Hitachi	C2864TN	Electronic screwdriver set up	Hold the vol + and - buttons and switch on. The set will come up with Factory 05 on screen. On the handset press the two rec keys twice(linked by white line) The set will display the tube menu. The top coloured adjustments correspond to the top coloured keys on the handset , the bottom coloured adjustments correspond to the bottom coloured keys. Push the coloured key on the hand set corresponding to the adjustment, ie VA for vertical Amplitude. VA will be high lit. Now pressing the Vol+ or - on the handset will adjust the value. To store the settings , press diamond shaped key (store) and put set into standby to exit service mode. You do not need to store each adjustment, you can adjust them all and store them once at the end. It is a good idea to jot down all the numerical values for all the adjustments first, so if you make a mess you can put the adjustments back to their original settings.