jvc C14ET1 Repair Tips

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Results 41

Make	Model Ch.	Symptom	Problem Solution
Jvc	C14ET1EK ONWA	Picture height is reduced to 2 inches	Replace C418. It's the coupling capacitor from the frame circuit to the scanning coils. It's value is 1000uF, 25V
JVC	C14ET1K	No col & reduced height	12v supply low R434 (6R8) hi res
JVC	C14ET1EK Onwa	Rapid tripping at sw on	C402 4n7 500v leaky in prot network
JVC	C14ET1EK Onwa	Dead tho' st/by relay operates	Supply of 8.5v to IC301 pin 42 missing - R323 6k8 5w o/c
JVC	C14ET1EK Onwa	Col goes aft 5 mins	Pin 12 IC301 AN5601K low at 2v (5.1v); C325 0.47mf 35v tant was fitted wrong way round
JVC	C14ET1EK (Onwa)	Dead	C909 47µ had exploded & perlace C911 47µ 50v. No Ht when replaced - R404 1R0 safety res o/c in 16v supply
JVC	C14ET1EK Onwa	Wriggling line at bottom of pic (after repairing blow up)	12v line low at 11v - fusble res R434 0R68 had risen in value
JVC	C14ET1EK Onwa	Sync crushing with soot & whitewash pic	C113
JVC	C14ET1EK Onwa	Poor field sync	C308
JVC	C14ET1EK Onwa	Patterning & no colour	CF101 in IF o/c
JVC	C14ET1EK Onwa	No Txt	C020 3µ3 50v o/c
JVC	C14ET1EK Onwa	No sound with slight whistle	C106
JVC	C14ET1EK Onwa	No sound	C110
JVC	C14ET1EK Onwa	Int reverts to st/by	Leaky tactile switches
JVC	C14ET1EK Onwa	Failure to stop on search tune	Check ident cct - Q614/615, caps, 1N4148 diodes D609/610
JVC	C14ET1EK	Tunes ok but goes off tune when "Memory" pressed	T106 AFC coil o/c in IF can
JVC	C14ET1EK	surge lim res o/c	check C904-7 4n7 disc caps across mains rects
JVC	C14ET1EK	Standby only	R403 0R68 1w o/c (HT feed)
JVC	C14ET1EK	St/by only	R323 6k8 5w feed to AN5601K IC301 o/c
JVC	C14ET1EK	Sound muted/erratic non-lin field at bottom - check if auto tune stops at a chan - if not change:-	Q605, Q618, Q619, Q620, Q621, 2SC1815-Y. D607 & 8 1N4148, R403, 404, 433, 434, 435, 0R68 1/2w safety res, Q402 2SD400F, C406 220µ 25v, C433 220µ 35v. In this case just C433 was faulty