HITACHI Repair Tips

Model:Make: Symptom:

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Search: HITACHI
Results 930
MakeModelCh:SymptomProblem SolutionSolutionBy:
HitachiNP82CQTuning - drift.D1503-8 , D1511-2 leaky.
HitachiNP82CQRagged verticals & loud whistle.IC701 ( LA7801 )
HitachiNP82CQNo sound or raster.R772 o/c , replace STA441C.
HitachiNP82CQNo picture.IC901 ( STR6020 ) , 2SD898B , Q681 ( 2SC1213A ) , R772.
HitachiNP82CQNO COLOUR PIN 5 IC501 LOW ( NORMALLY 3.8v FOR MAXC507 2u2 SC
HitachiNP82CQNo chan storepin3 MDA2062 memory chip only 4.7v (20v), break in pcb track under on/off sw
HitachiNP82CQInt loss of sound.Looks like dry joints check lead out wires on TX.
HitachiNP82CQFrame - rolling when hot.C609 ( 0.22u f ) if not check components off pin 1 of TDA
HitachiNP82CQFIELD FOLDOVER & FLYBACK LINESR614 HIGH 150k
HitachiNP82CQDead.Drys on D950.
HitachiNP82CQdeadSTR6020 s/c; 2Afuse o/c; Lop tr 2SD898B Q781 s/c
HitachiNP82CQdeadPri HT - no 11v HT - to overide overvolts trip s/c C912 & sub lop tr with bulb. - HT now 130v (correct on dummy load). Replace STR6020 and now ok
HitachiNP82Standby - stuck on standby - no functions.IC901 ( STR441 ) on main chassis.
HitachiNP81CQ Mk2Flyback lines at topC715 4µ7 250v
HitachiNP81CQ Mk2Field lin - cramped at topC608 22µ 160v