jvc AV25S1EK Repair Tips




Search: AV25S1EK jvc
Results 17
MakeModel Ch.SymptomProblem SolutionSolutionBy:
Jvc AV25S1EK
Field collapseResolder TDA3654 as joints appear good but on application of soldering iron show to be dry
JVCAV28S1EK AV25S1EK MX2
Width & E-W faultyReplaced memory chip for electronic screwdriver - 24C01A/P IC1707
JVCAV28S1EK AV25S1EK MX2
St/by light changes col but no line driveNo supply to line dr tfmr as R903 2k2 hi res (switches st/by tr Q902)
JVCAV25S1EK MXII
Unstable pic with line jitterVideo o/p from IF module has ragged sync pulses - 1µ elect cap in AGC feed
JVCAV25S1EK Mk2
Always comes on in st/by - sometimes at full volEEPROM IC104 corrupt - pt no CAT93C66P
JVCAV25S1EK
Shuts down immediately after sw onD521 BY228 s/c, C468 47µ , R526 0R2
JVCAV25S1EK
Shuts down at sw onD521 BY228 s/c, C468 47µ, R526 0R22?
JVCAV25S1EK
NO LINE DRIVER903 2.2k BASE BIAS TO Q902 SLIGHTLY HIGH
JVCAV25S1EK
Led goes red, then green then off at sw on - no startR526 39R, C458 4µ7 50v & D521 BY228 in E/W cct
JVCAV25S1EK
LED COMES ON AND THEN GOES RED THEN OFFCHECK FOR S/C E/W STAGE R526, C458 AND D521 39 OHM, 4.7MFD50V AND BY228
JVCAV25S1EK
FRAME COLLAPSEREPLACE FRAME IC TDA3654
JVCAV25S1EK
Field collapseTDA3654 FOP chip
JVCAV25S1EK
Dim pic with green tintNo volts at IC201 contrast control pin as C1206 3µ3 leaky
JVCAV25S1EK
DIM PICC1206 LEAKY 3.3mfd
JVCAV25S1EK
Dead or int dead - front LED operates ok & HT/LT readings okCheck R903 & 904 2k2 & dry joints on st/by trs Q902 & 901 near them
JVCAV25S1EK
At sw on LED red then green, red then out - deadC468 (4u7F 50v) blown its top and R526 (39R 0.5w)burnt also D521 (BY228) s/c
JVCAV25GS1EK & AV25S1EK etc
Dead - HT starts to rise then decaysD521 BY228 in EW cct