JVC TV Repair: Common Faults and Solutions.
Search: JVC
Results: 432
Results: 432
JVC Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| JVC | AV-21QT5BU - CHASSIS 11AK49-7 | Tick tick tick (didn't care) | D817 and ic802 shorted | ||
| JVC | AV-K21T | Tsound are all voltages at the power supply output in STBY but when starting the TV they all drop | Replace optocoupler tlp721f and capacitor c924 100mf/25v | ||
| JVC | C14ET1 | No color, tsound is chroma on pin 5 and not 7 of the ic an5601k | C306 0.01uf with escape (jungle pin 5) | ||
| JVC | AV 28GS1EN CHASSIS MX I/II | Colorless | Replace ic201 ta8759bn | ||
| JVC | AV 28GS1EN CHASSIS MX I/II | Starts up and after a few seconds returns to standby | Faulty memory ic704 cat35c104hp | ||
| JVC | C-S2190E | When it turns on it is out of tune. It takes about 10 m to see the image | Ck10405 module change the 4 electrol. smd | ||
| JVC | HRD720 | Noise bar in playback, looks like error in the guides adjustment | The problem is the 3.3uf capacitor in the drum motor. this generates pg signal errors. replace it and give me a smile ! | ||
| JVC | AV25SD4EK | Standby led changes from red to green as normal, but no picture or sound. set appears not to come out of standby | Check for dry joints on the line output transformer tags. resolder all as a precaution anyway | ||
| JVC | HRD750 | Dead | This was due to c14 1uf, 63v in p.s.u being faulty, replaced with a 2.2uf, 63v | ||
| JVC | AV21F1EN | Channel reception lost if tuner socket moved | Dry joints on ic522, ic521 and ic541 located in the big heatsink about middle of the main pcb | ||
| JVC | C14E1EK | Dead, in standby, ht present at relay rlx401, no 12 volts at c419 | R425 5.6Ω o/c, zd402 12 volt zener s/c and c426 2200uf, 25volt faulty | ||
| JVC | HRD560 | 3/4 of the playback picture is snow may look like duff heads! | Check 3.3uf,50v capacitor on lower drum motor pcb, this is an smd type but can be replaced with standard cap mounted on its side and tilted downwards slightly to clear mech | ||
| JVC | AV-S250EKT | Set dead. faint whistling noise on switch on. no standby led | Replaced str1006, no dfference. line o/p transistor ok. 36 volt zener, d614 found to be short. this zener is on the secondary of xformer, t601. this short causes the 12 v start up supply cct, which includes str1006 not to come on | ||
| JVC | C14ET1EK ONWA | Picture height is reduced to 2 inches | Replace c418. it's the coupling capacitor from the frame circuit to the scanning coils. it's value is 1000uf, 25v | ||
| JVC | HRJ265 | Capstan motor intermittantly stopping and starting | Replaced motor | ||
| JVC | HRJ610 | Dead | Transistor q31 in psu leaky | ||
| JVC | C14E1EK | Tuning drift,worse at high channel no's | Dry joints inside tuner unit, connections between edge of pcb and lugs | ||
| JVC | AV28WZ2 | Blank raster | Replace defective tda6111q for red, blue and green | ||
| JVC | HRD750 | Tracking does not lock. picture runs up and down occasionally | Very small electrolytic caps on the drum circuit board must changed they may be the bigger can type, if you don't find small ones | ||
| JVC | AV25S1EK | Field collapse | Resolder tda3654 as joints appear good but on application of soldering iron show to be dry |