HITACHI M Repair Tips


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Search: M HITACHI
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Results 45
MakeModel Ch.SymptomProblem SolutionSolutionBy:
Hitachi VTM640
Low video levelReplace C1530 47uF, 16v
HitachiNP83CGMk2
Pic pulls to right & int field rollTry s/c vid in & out conns on txt pcb - if ok fault on txt pcb
HitachiNP82CQ Mk2
off, trips for a few secs at sw onWhen trip disabled squeal from lopt - R772 10R hi res
HitachiNP82CQ Mk2
int revert to st/byIC901 STR6020
HitachiNP81CQ Mk2
Flyback lines at topC715 4µ7 250v
HitachiNP81CQ Mk2
Field lin - cramped at topC608 22µ 160v
HitachiM
To exit factory pre-set mode (Model no in red across screen)switch on whilst depressing vol up/vol down buttons
HitachiM
Field lin problem after replacing chip TDA 8350QD718 BYD33 under heatsinks split in 2
HitachiG7PSMK2
Standby only.R902 ( 82k ) o/c.
HitachiG7PSMK2
Int frame collapse.Drys on frame IC & LOPT.
HitachiG7PSMK2
Dead - HT low 45v.Change C910 , C914 , C916 , C929
HitachiG7PSMK2
Dead - HT at 145v.R909 high.
HitachiG7PS Mk2
Field collapse 1cm highIC703 AN7809 9v reg leaky
HitachiG7PMk2 CPT2808
To bypass Txt panel when a fault here is suspected of causing pic faultShorting pins 2 & 3 of the 5 pin connector (E001) on the main board. This links the video in to the sync out lines, thus restoring normal picture and sound.
HitachiG7P MkII CPT2508
Pic pulls to right when heatedQ905 connection to pcb suspect - resolder
HitachiG7P MkII CPT2508
Dead - LOPTr blowsIC701 TDA2579
HitachiG7P Mk2
Won't start up again aft being switched offR913 100R in base of chopper tr o/c
HitachiG7P Mk2
Tuning drift & nothing tuneable above Ch36Only 7v across 33v zener. IC101 HD401304R12S faulty
HitachiG7P Mk2
Trips at sw onC737 100µ in trip cct o/c
HitachiG7P Mk2
Snowy raster & no controls workpin 15 IC101 micro high -caused by faulty IC601 AN5521 FOP chip