| Make | Model | Problem | Solution | Date |
| | | |
| Found: 79
|
| JVC | 25SX1EK | Comes on in AV mode - no sound when chan selected | IC703 EEPROM Pt no AT24C04255X1EK & re-initialise as per manual | 14-09-04 |
| JVC | 29SX2EK | Focus out, field scan low & reverts to st/by | IC401 field chip, LA7845N and FR553 1ohm 1w safety resistor in -13V supply | 14-09-04 |
| JVC | 29SX2EK | To acces service mode | Press the Information button (shown as "i") and the Mute buttons simultaneously | 14-09-04 |
| JVC | 29SX4EK | Reverts to st/by aft 5 secs of small pic | C521 5th harmonic tuning capacitor. | 14-09-04 |
| JVC | AV21SX1 | No sound | Only 3.5v supply to Dolby pcb - should be 5v - IC952 LM7805 reg | 14-09-04 |
| JVC | AV21SX1EK | Field - partial collapse - int | Dry joint C961 2200µ 25v ; 8v smoother | 14-09-04 |
| JVC | AV21SXLEK | High pitched buzz - sound/pic OK | L521 line lin coil vibrating - could also be LOPTx | 14-09-04 |
| JVC | AV25SX1EK | Field - top cramp | TDA8350Q chip faulty | 14-09-04 |
| JVC | AV25SX1EK | Int Field collapse with it turning off | Dry joints around FOP | 14-09-04 |
| JVC | AV25SX1EK | No sound | IC952 5v supply to Dolby pcb low, check for o/c L601 N10 ccct prot. Dis A mute pin 8 IC601 to restore sound. Fault could be due to micro or eeprom caused by crt flashover | 14-09-04 |
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|
| JVC | AV25SX1EK | No sound | IC1952 KIA7805PI 5v reg | 14-09-04 |
| JVC | AV25SX1EK | shuts down almost straight after sw on | HT correct but EHT high due to C1521 3,800pf 1.5kv reduced cap | 14-09-04 |
| JVC | AV25SX1EK JA | Flickering & flashing pic | FOP chip | 14-09-04 |
| JVC | AV25SX1EK JA | Flickering/flashing pic | FOP chip replacement seems to have cured it | 14-09-04 |
| JVC | AV25SX1EK JA | Int pic blanking out | TDA8350Q vertical output chip (IC401). If R971 if fitted & overheating, remove it (should not be fitted in UK models) | 14-09-04 |
| JVC | AV25SX2EK | NO SOUND | REPLACE S/C C613 100MFD25V | 14-09-04 |
| JVC | AV25SX2EK | No sound - pic ok | R617 overheats due to C613 100µ 25v s/c (no 5v suppl) | 14-09-04 |
| JVC | AV25SX2EK | Pic comes on for 5 secs at sw on then off | X ray prot active due to D582 BZV85C6V8 s/c causing Q573 base to rise | 14-09-04 |
| JVC | AV25SX2EK | PICTURE FLUCTUATES ON AND OFF | CHECK D582 FOR S/C (6.8V ZENER) | 14-09-04 |
| JVC | AV25SX2EK | Small pic | C521 3000pF 1.6kv "S" corr cap changed value | 14-09-04 |
| JVC | AV25SX2EK | SMALL PICTURE WITH NO DISTORTION | REPLACE C521 3000PFD16KV | 14-09-04 |
| JVC | AV25SXEK JH | Small pic then reverts to st/by | Line tuning cap C521 (4n 1.5kV for 29" sets (part QFZ0152-4001) or 3n6 1.8kV for 25" (part QFZ0122-362)). | 14-09-04 |
| JVC | AV29SX1 | Field collapse | If version 3 fit mod as described TV Mag Oct 00, if vers 5 not nec | 14-09-04 |
| JVC | AV29SX1 JA | Buzz at 6khz on sound | IC601 MSP3410-SDIL multi sound proc chip on AV selector board | 14-09-04 |
| JVC | AV29SX1EK | Bright white raster - sound ok | FR551 white fusible o/c - back middle of pcb | 14-09-04 |
| JVC | AV29SX1EK | Brightness fluctuates int blanking out when warm | OK when 16:9 button pressed - FOP chip TDA8350Q | 14-09-04 |
| JVC | AV29SX1EK | Brightness varies | Dry joint earth pin of LOPTx | 14-09-04 |
| JVC | AV29SX1EK | BRIGHTNESS VARYING | RESOLDER EARTH PIN ON LOPTX | 14-09-04 |
| JVC | AV29SX1EK | Dead - HT present but No line drive | TDA8366 jungle chip producing no line drive - faulty | 14-09-04 |
| JVC | AV29SX1EK | Dead - Red LED comes on at sw on turning Green | Check earth lead to CRT aquadag is fitted securely aft FOP mod kit fitted or IC806 can cause corrupt I2C bus | 14-09-04 |