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Repair tips

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

MakeModelProblemSolutionDate
Found: 355
JVCDead - st/by onlyR323 6k8 5w fusible res o/c connects pin 42 of IC301 to HT rail14-09-04
JVC1430RHum barSmoothing cap 100 400v14-09-04

JVC1480Dead - When main micro suscheck blue ceramic 3 legged filter14-09-04
JVC1480proc module faultycaused by 3 legged ceramic filter14-09-04
JVC1480tuner driftcheck sm comps14-09-04
JVC1480EKStuck in st/by (timer light?)22 sm cap in stn select module had leaked & broken track between pin 2 of the IC and L001 choke. 14-09-04
JVC14E1EK OnwaDeadChopper Tr 2SD1545 leaky14-09-04
JVC14ET1EKHotel mode? No chan store & "H" in top cornerPull up res R605 27k for chip select pin was o/c14-09-04
JVC25S1No sync in off air & AV modeNo sync pulses at IC201; IC103 -(Mc4066BF. SMD) on Text Board14-09-04
JVC25S1EK MXIINO VISION - WONT TUNE INC119 47n IF UNIT. ON PIN 2 IC 10114-09-04
JVC25S1EK MXIIStBy LED changes red to gren but no line driveCheck Q902 V if missing R903 ( 2K2 ) o/c14-09-04
JVC25SX1EKComes on in AV mode - no sound when chan selectedIC703 EEPROM Pt no AT24C04255X1EK & re-initialise as per manual14-09-04
JVC29SX2EKFocus out, field scan low & reverts to st/byIC401 field chip, LA7845N and FR553 1ohm 1w safety resistor in -13V supply14-09-04
JVC29SX2EKTo acces service modePress the Information button (shown as "i") and the Mute buttons simultaneously14-09-04
JVC29SX4EKReverts to st/by aft 5 secs of small picC521 5th harmonic tuning capacitor. 14-09-04
JVC7255EE-AWon't come out of standby.PS, near AN5900 change 2caps 220uF 3caps 10uF and 1cap 47uF.14-09-04
JVC7255EE-AWon't come out of standby.PS, near AN5900 change 2caps 220uF 3caps 10uF and 1cap 47uF.14-09-04
JVC7255GBSt/by onlyC33 220 16v & check for drys14-09-04
JVC7575GBIncorrect colour.Replace C324 ( 33uf )14-09-04
JVC7815GBPartial field collapseR414 680R o/c14-09-04
JVC7860Bright raster.C104 ( 10uf , 200v ) dries up , TR204 ( BC327 will do )14-09-04
JVC7860GBBright pic with fb linesRGB O/P volts low at 110v (150v). C21 47 50v o/c14-09-04

JVCAU21F1Int signalsDry joint IC522 5v reg mounted on central heatsink14-09-04
JVCAV-14FMG3BJVC Tv,Model AV-14FMG3B. Power is ok & the power led is light normal. but there is no any picture and sound. it is stuck in standby. the power led is light normal (red ), but the ontimer led (orange) is blinking up to the TV is off.Resold the vertical I/C. You have dry joints on that part. 29-06-05
JVCAV-14FMG3BJvc Tv,Model AV-14FMG3B. Power is ok & the power led is light normal. but there is no any picture and sound. it is stuck in standby. the power led is light normal (red ), but the ontimer led (orange) is blinking up to the TV is off. what can be the fault.Could you check if there is any voltage e.g. on the collector of the high voltage transistor? A blinking power-led, is usualy indicating a problem on the secundairy side of the power supply! So try to obtain a diagram and meassure these voltages. 02-07-05
JVCAV-21F1EKBright white raster with flyback linesIC101 TEA5105 on crt base14-09-04
JVCAV-21F1EKDead except for LED`s flashingIC801(TA8216) S/C on LHS pcb 14-09-04
JVCAV21F1EKBright raster with fback linesIC101 TEA5105 on crt base14-09-04
JVCAV21F1EKDull green pic slow to appearCRT14-09-04
JVCAV21F1EKNo pic - sound okTEA5101A RGB driver chip14-09-04
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