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JVC Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
JVC HRJ205
Dead, no negative voltages on psu connectorCheck r32 100Ω in psu for o/c
JVC HR-S4700EK
Intermittently crunches tapes on ejectI had to use a clear service cassette to see what was occuring during the eject sequence and found that during the unthread, the take up reel was rotating anti-clockwise and was not being braked, the felt pad on the take-up sub brake had fallen off the arm, a new brake cured the problem
JVC HRJ235EK
Rubbing noise at start of full tape with horizontal picture judderExcessive take up tension! replace take up clutch item 25, pt no pq46323a-1
JVC C-V14EKS/B/W ONWA
No redI was hoping the nvm had become corrupt and turned the red drive down but it was fine to enter service mode press and hold vol up and vol down on the front panel and switch set on. thankfully zd405 8v2 had expired almost s/c and removed the red
JVCAV21FT1SUG
CP845F
LED blinks brightly and then blinks weakerI806 power supply regulator ) error amplifier 110vRodeio2011
JVCLT-17E31
Scratches on the image and on the leak-type OSDC004/005 (10uf/16v) in regulator circuit i002MeA
JVCHV32-P37 SUE
Burns horizontal oscillator transistor 2sc5905Replace the transistor, check the soldering of the kinescope board and the capacitors of the horizontal circuitThis email address is being protected from spambots. You need JavaScript enabled to view it..p
JVCCA-DXU10
HOME DVD THEATER
Fully accessible displayShorted panel ic500Ic500 replacementHelio Eletrosonic
JVCAV-27730
Turns the relay on and off after a few minutes it turns onCapacitor de 1mu \ 160v c 523MACCELETRONICA
JVCCA-DXJ20
DX-J20
When plugged in, the display has all the characters lit up. This happened after the customer connected the selected device to 110 volts and 220 volts.Q4501 and d4504 were shorted causing the IC101 panel micro to burn outTo avoid burning the ic101 you will have to replace the q4501 and d4504 first.Helio (Eletrosonic)
JVCAV-21BF11EPS
11AK30 A4
Only sound/no imageIc 900 (tda6107q) shorted on pins 4 and 6 and resistor 919 (27r) openReplace these componentsNezocas
JVCDVD XVN 325
No picture normal soundDisable progressive scanHold down the VFP key on the remote control for more than 5 secondsELETRONICA ROBSON(DEBIQUE)
JVCAVB2973
Vertical closedIc 401 defective.When replacing IC 401 (UPC1498) the TV started working normally again.M&E ELETRONICA
JVCUX-G60B
Turns on, "welcome" appears but then goes to standbyIC240, 9V regulator, no output voltageCAOP
JVCB2973
Vertical closedRes. in parallel with the changed deflector
JVCAV-21QT5BU - CHASSIS 11AK49-7
Tick tick tick (didn't care)D817 and ic802 shorted
JVCAV-K21T
There are all voltages at the power supply output in STBY but when starting the TV they all dropReplace optocoupler tlp721f and capacitor c924 100mf/25v
JVCC14ET1
No color, there is chroma on pin 5 and not 7 of the ic an5601kC306 0.01uf with escape (jungle pin 5)
JVCAV 28GS1EN CHASSIS MX I/II
ColorlessReplace ic201 ta8759bn
JVCAV 28GS1EN CHASSIS MX I/II
Starts up and after a few seconds returns to standbyFaulty memory ic704 cat35c104hp