Hitachi Repair Tips

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Results: 1065

Make	Model	Symptom	Problem
HITACHI	C2546TN	Red cast to pic when col control increased	Ic501 tda4665 dig delay line chip
HITACHI	C2546TN	No sound	Memory chip replaced
HITACHI	C2546TN	Intetmittantly cuts out	Resolder ic951
HITACHI	C2546TN	Int reverts to st/by	Dry joint on r956 to left of reg & check reg joints
HITACHI	C2546TN	Int operation then dead	Check dry joints ic950, ic951, ic952 & if still faulty replace ic950
HITACHI	C2546TN	Int excess width - provoked by tapping	Q752 bc558b breaking down
HITACHI	C2546TN	Int cuts out	Dry joints ic951 8v reg lm7808
HITACHI	C2546TN	Int buzz esp at sw on	L901 mains i/p filter choke
HITACHI	C2546TN	Field fault	R909 had a invisible dry joint
HITACHI	C2546TN	Field collapse	Dry joint r710 near fop chip (hidden by glue)
HITACHI	C2546TN	Field collapse	Check for dry joints fusible res in psu
HITACHI	C2546TN	Dead	Q903 on4584 chopper tr o/c, zd901 4v7 zener & d905 1n4531 s/c
HITACHI	C2546TN	Dead	Although the line output transistor was reading ok is was breaking down on load
HITACHI	C2546TN	Blank raster & no sound - ok via scart	Tuner type e710029 faulty
HITACHI	C2546	Stuck in st/by	Reg ic dry joints & r952 68k hi res
HITACHI	C2546	Int wont start	Check r901 82k, r950 68k, r952 82k and set ht for 146v
HITACHI	C2544TN G100	Hum on sound & patt on pic	C924 470µ 16v, c925 10µ 50v, c927 470µ 25v in 5 & 12v supplies
HITACHI	C2544TN	Trips at 1 sec interval	C924 470µ 16v in 5v supply or r609 1r0 in 27v supply o/c
HITACHI	C2544	E-w correction faulty	D702, c707 & q652
HITACHI	C2524TZ	St/by only	Dry joints t901 caused zd903 180v o/c?, r901 o/c, q781 & q903 s/c & check r902, r903, r909, r912, r760, r761, r762, r766 & resold dry joints t901