jvc Repair Tips

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Make	Model Ch.	Symptom	Problem Solution
JVC	C14ET1EK	No sound or varying vol, no stopping in Auto Tune	D807 1N4148 leaky
JVC	C14ET1EK	NO SOUND OR COLOUR	CHECK PIN 13 OF MICRO IF 0V REPLACE R669 10K OHM
JVC	C14ET1EK	No R/C functs	ZD603 leaky
JVC	C14ET1EK	INT DEAD WITH DIM LED	REPLACE D402
JVC	C14ET1EK	Int dead - LED dim	D402 S5295 o/c - may read ok off load
JVC	C14ET1EK	Int col & line lock	R421 or marked R423 0R68 12v feed risen to 12R
JVC	C14ET1EK	Field collapse	R335 180k hi res or o/c
JVC	C14ET1EK	Faint Hor lines 2cm from bottom	R434 0R68 1/2w in 12v feed high res
JVC	C14ET1EK	Dead	R434 0R68 in 14v supply to D408 o/c
JVC	C14ET1 (Onwa)	St/by only	R323 6k8 2w feed to line osc etc o/c
JVC	C14ET1	St/by only	R434 in 14v line o/c
JVC	C14ET1	Height only 2"	Scan coils u/s - res should be 13R
JVC	C14ET1	Field - height varies	R431 0R68 fusible resistance varied
JVC	C14EK1	Arcing sound from scan coils	Small correction magnet on rear of scan coils vibrating
JVC	C14E1K	St/by only - R323 6k8 burnt	AN5601K chip was the cause
JVC	C14E1EK Onwa	Set comes on to standby - relay clicks.	R323 ( 6k8 5watt ) fusible resistor o/c ( maybe Int ) between p42 of IC301 & HT rail.
JVC	C14E1EK Onwa	No go	R323 ( 6k8 5watt ) fusible resistor o/c between p42 of IC301 & HT rail.
JVC	C14E1EK Onwa	Int snowy pic at sw on with no OSD or R/C functs	OK once TMS73C47 micro reset (s/c pin 32 to chassis briefly). Caused by crack in print at front edge of pcb on track to pin 2 micro - hard to see due to covered in black ink
JVC	C14E1EK Onwa	Dead - no st/by	Q902 2SB774 base emitter s.c. (used BC558).
JVC	C14E1EK Onwa	Dead - HT high	C909/911 47µ cured HT problem but still dead; No supply pin 42 AN5601K dec/tb chip IC301. R323 6k8 5w fusible o/c