TV Repair Tips

HITACHI

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Size	Model	Chassis	Symptom	Problem Description	Fix
46	CU4601B	VP-8X2	Dead	Pincusion, then Died	Jumper traces from L961, C596 and C958 (470uF/63V)
50	50EX10B	AP-32	power	Shuts down after 30 sec	Replace -12V regulator IC933, C945, C950
50	50EX20B		Power	Dead, fuse blown	Q004 (on signal bd), D909
50	50FX18B	AP-62	Power	Locks up when OSD is on	I001 and I002
50	50FX18B	AP-62	Video	S shaped line in pic after magic focus	Replace defective DCU
50	50FX18B	AP-62	Power	shuts down intermittently	Leaky Q913
50	50FX18B	AP-62	Video	intermittent loss of video	15A4, CN05, CN06
50	50FX18B	AP-62	video	close captioning keeps coming on	I001, I002
50	50FX18B	AP-62	Audio	No Audio	D309
50	50FX18B	AP-62	Tuner	No channels above 22	I002
50	50FX18B	AP-62	Power	no power, no relay click	Q902, D912
50	50FX18B	AP-62	Video	focus drifts	Defective EFPK
50	50FX18B		Power	relay clicks, but no power	D968
50	50FX18B		Video	snowy picture	D104
50	50FX18B		Video	Weak color	I502
50	50FX20B	HP-11	Dead	No sound or video	L204 on terminal PCB
50	50SBX78B	AP-82	Convergence	convergence changes intermittently	replace DCU
50	50SBX78B	AP-82	Convergence	Red convergence intermittent	Cold Solder joint on RK46
50	50SBX78B	AP-82	Dead	clicks and shuts down	E994 (fuse), C707 (.01uF/2kV)
50	50SBX78B	AP-82	Video	Horizontal lines and black box when any remote button pressed	I102

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Warning

: Don't kill yourself. If you do, don't blame us... We totally warned you. These tips are intended for qualified service technicians that know what they're doing. Unqualified persons should never service their own equipment. Televisions contain very high voltage that could kill you.