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TELEVISION TECHNICAL BULLETIN
MODELS DV51083H DV66083H DV5903H

Month of Issue: Classification:

CTV2000 08 17

August 2000 White Page 1 of 1

DV59083H

DV6603H

SYMPTOM Dead or tripping. CAUSE ACTION Line output transformer or problems in the power supply. Disconnect R632 and turn the set on. If the HT comes up to 150V, then it is likely that the fault is in the line output stage. This could be the line output transistor (2SD1554 in 51cm sets or 2SD1546 in 59/66cm sets) or line output transformer. If the HT comes up then shuts down again, it is possible that the vertical output IC, IC501 is faulty. Sometimes when IC501 fails, it will take out R501 (supply reed resistor). Note that in this receiver, the vertical output IC obtains its supply from the line stage. If the HT does not come up, then the fault is probably is probably in the power supply, IC701 or Q701 are suspect. If either IC701 or Q701 are found to e faulty, change both devices. REF NO IC701 IC501 R501 T600 T600 DESCRIPTION RH-IX1434BMZ RH-IX1413BMZZ VRG-RL2HB1R0K RTRNF1786BMZZ RTRNF1783BMZZ PART NUMBER IC, TEA2261 IC, TDA8175 Resistor, 1R 0.5W 51cm LOPT 59/66cm LOPT PRICE CODE AW AS AB BG BH

Sharp Electronics (UK) Limited
Reference TT04082000-4 Revision

White Carry out as required Yellow Carry out as required and whenever the unit comes in for service Red Carry out on all units