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Repair tips

Make	Model	Problem	Solution	Date

Found: 14
Bush	1407	Chans can't be stored	The -30v to memory chip low at -12v. C602 1nF small, green cap decoupling zener leaky	14-09-04
Bush	1407	Dead	R901 4R7 5w o/c, C903/4 caps across bridge rect s/c 4n7 500v	14-09-04

Bush	1407	Dead	R913 oc	14-09-04
Bush	1407	sound dist - sounds like spkr but isn't	add 0µ1 cap from pin 5 of IC201 KA2201 (TBA820M) to chassis	14-09-04
Bush	1407 (Onwa)	bad audio distortion which at first sounded like a faulty spkr.	Despite replacing this, the audio o/p ic IC201 KA2201 (TBA820M) and variouscaps around it the fault remained. adding a 0.1mfd cap from the o/p of the ic (pin 5) to chassis, this completely cured the fault	14-09-04
Bush	Onwa 1407	Int osg appears, vol turns up on its own, tuning, R/C etc	D602 1N4148	14-09-04
GEC	C1407H	Dead - with whinning noise.	2D910 ( 3V zener ) s/c.	14-09-04
Matsui	1407	Dist sound	Q351 (2SC2120) and Q352 (BC640)	14-09-04
Matsui	1407	No sound	Q353 (2SC1815)	14-09-04
Matsui	1407	No sound	Replace Q351 & 352 aud o/p trs & replace sm R358 with 180R	14-09-04
Matsui	1407	Sound dist	Q351 (2SC2120) and Q352 (BC640).	14-09-04
Matsui	1407	sound low muffled	Q351 & 352 overheats. Replaced spkr & trs	14-09-04
Matsui	1407RS	Pin Code reqd	Remove old pin code, enter wrong code 3 times, press VOL UP on TV & "7" on handset together	14-09-04
Matsui	1407RS	St/by only with 120v on HT sw tr Q504 collector but only 10v at LOPTr	Micro IC103	14-09-04

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