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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 355
JVC
C14E1EK
Field collapse
25v supply to fop chip LA7830 IC401 missing - R433 0R68 o/c & C424 4n7 500v leaky (measured ok out of cct)
14-09-04
JVC
C14E1EK
field collapse after psu repair
speaker plug connected to service pins by mistake
14-09-04
JVC
C14E1EK
Field o/p chip IC401 LA7830 int destroyed
VR901 2k HT preset int - causing HT to int rise
14-09-04
JVC
C14E1EK
FRAME COLLAPSE
CHECK R335 180K FOR O/C
14-09-04
JVC
C14E1EK
Incorrect AGC
C124
14-09-04
JVC
C14E1EK
Int destruction of fop chip (IC401 LA7830)
Replace VR901 (2K) +B preset.
14-09-04
JVC
C14E1EK
Line Tearing
C632
14-09-04
JVC
C14E1EK
No Txt
SAA5243P/E on Txt pcb faulty
14-09-04
JVC
C14E1EK
St/by only
C406 220µ 25v
14-09-04
JVC
C14E1EK
Stuck in StBy , relay clicks but no go . Or very rarely comes on and then goes to StBy after 3-4 mins .
R323 6K8 5w fusible OC.
14-09-04
JVC
C14E1EK
Tuning drift
C116 sm cap - also check other sm electrolytics whilst tuner out
14-09-04
JVC
C14E1EK (Onwa)
St/by only - can be int
lop stage 12v low at 11.5v - R434 0R68 hi res at 1R2
14-09-04
JVC
C14E1EK Onwa
Dead
After replacement of usual caps the mains smoother C907 4700pF 500v in psu pri was found to be leaky
14-09-04
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
14-09-04
JVC
C14E1EK Onwa
Dead - no st/by
Q902 2SB774 base emitter s.c. (used BC558).
14-09-04
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
14-09-04
JVC
C14E1EK Onwa
No go
R323 ( 6k8 5watt ) fusible resistor o/c between p42 of IC301 & HT rail.
14-09-04
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.
14-09-04
JVC
C14E1K
St/by only - R323 6k8 burnt
AN5601K chip was the cause
14-09-04
JVC
C14EK1
Arcing sound from scan coils
Small correction magnet on rear of scan coils vibrating
14-09-04
JVC
C14ET1
Field - height varies
R431 0R68 fusible resistance varied
14-09-04
JVC
C14ET1
Height only 2"
Scan coils u/s - res should be 13R
14-09-04
JVC
C14ET1
St/by only
R434 in 14v line o/c
14-09-04
JVC
C14ET1 (Onwa)
St/by only
R323 6k8 2w feed to line osc etc o/c
14-09-04
JVC
C14ET1EK
Dead
R434 0R68 in 14v supply to D408 o/c
14-09-04
JVC
C14ET1EK
Faint Hor lines 2cm from bottom
R434 0R68 1/2w in 12v feed high res
14-09-04
JVC
C14ET1EK
Field collapse
R335 180k hi res or o/c
14-09-04
JVC
C14ET1EK
Int col & line lock
R421 or marked R423 0R68 12v feed risen to 12R
14-09-04
JVC
C14ET1EK
Int dead - LED dim
D402 S5295 o/c - may read ok off load
14-09-04
JVC
C14ET1EK
INT DEAD WITH DIM LED
REPLACE D402
14-09-04
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