| Make | Model | Problem | Solution | Date |
| | | |
| Found: 355
|
| JVC | AV29SX1EK | Pic flashes on/off rapidly | Check FOPTr heatsink contact | 14-09-04 |
| JVC | AV29SX1EK | Pic flickers & disappears aft 1/2 hr | Replace the TDA8350Q vertical output chip (IC401) - You should fit a TPCE-0051 kit at 14UKP | 14-09-04 |
|
|
| JVC | AV29SX1EK | Pic takes a long time to come on then disappears again aft 10 mins | Dry joint pin 12 LOPTx | 14-09-04 |
| JVC | AV29SX1EK | St/by only - no line drive | When pin 6 IC806 dis'd (Txt micro) works ok - P83C654FBP/541 u/s | 14-09-04 |
| JVC | AV29SX1EK JA | Sound absent | IC805 muti sound proc chip can be cause but IC703 EEPROM pt no AT24C0429SX1EK was faulty (on wrong sound system) | 14-09-04 |
| JVC | AV29SX1EK JA | Sound missing | L & R chans ok at i/p TDA7315D IC401 but nothing leaving it. IC703 EEPROM AT24C)429SX1EK was faulty | 14-09-04 |
| JVC | AV29SX1EN | No sound | Replace IC 952 (5V REG for audio control , Dolby,etc) | 14-09-04 |
| JVC | AV29SX2EK | Col disappears aft 2/3 hrs - col bars appear int | C110 12pF off pin 40 IC101 faulty | 14-09-04 |
| JVC | AV29SX2EK | Int jagged verts/line tearing | Faint "gurgling" noise from LOPTx - LOPTx faulty | 14-09-04 |
| JVC | AV29SX2EK | Motorboat effect in st/by | R616 dry joint in mute line to IC601 (under glue) | 14-09-04 |
| JVC | AV29SX2EK | Motorboat effect in st/by (aft 10 secs) | IC601 dry joints & check components nearby for dry joints | 14-09-04 |
| JVC | AV29SX2EK | To enter service mode | Push "I" & "mute" on handset together | 14-09-04 |
| JVC | AV29SX4 | Small pic at sw on then reverts to st/by | C521 line tuning cap changed value 4n 1.5kv | 14-09-04 |
| JVC | AV29TS2EK | Field - jumping like dry joint | 22k resistor on print side under glue had dry joint | 14-09-04 |
| JVC | AV29TS2EK | Int sw off | D405 on LH side of FOP chip o/c (in X ray prot) - can remove Q573 X ray Tr to prevent sw off whilst check for cause of fault | 14-09-04 |
| JVC | AV29TS2EK | Powers up with EHT then shuts down with brief small raster visible | C521 fb tuning cap o/c | 14-09-04 |
| jvc | av32r25ek | a vertical line in the middle of the screen that i cant get rid of any idea how to solve the problem?
| Try to identify the vertical deflection yoke. Test continuity(to be 10-15 ohms). Identify coupling capacitor and verify that it's not open. If all are ok, identify the actual deflection i.c. or circuit and confirm with 'scope that the drive signal from the jungle i.c is present and correct. If not present, confirm that the jungle i.c is getting all the necessary supplies from both the flyback transformer and from the power supply unit. If all are ok, replace the vertical i.c. | 17-02-06 |
| JVC | AV32R25EK(S) | Sound very dist on NICAM - ok on mono | R chan o/p from MSP chip (Nicam processor) IC631(pin 31) 6v p-p & badly clipped - L chan ok - chip faulty | 14-09-04 |
| JVC | AV32WFP1EK | St/by only | C966 0.01µ s/c | 14-09-04 |
| JVC | AVA14M2 | Int cuts out | Check for cracked print around LOPTx | 14-09-04 |
| JVC | AVK21T | Dead aft lightening strike | Change STRS-F6653 / opto couple / Q941 / Q942 / D945 6v2 /IC901S1854 error amp | 14-09-04 |
| JVC | AVS25SD4EK | Comes on briefly to show good pic in EXT3 then reverts to st/by | Possible EEPROM corruption - press "I" and "Audio Mute" simultaneously on handset. This will put it into test mode. Another quirk of some EEPROM problems is that the set will often switch to standby when going into or out of Service Mode or when pressing "VSM Reset". | 14-09-04 |
|
|
| JVC | BX11 | No chan store (search tune ok) | Check print, thro conns etc in Stn Sel Module - replacement expensive | 14-09-04 |
| JVC | BX11 | Tuner drift | Replace sm caps C014, C017 3µ3 50v; C015 22µ 6.3v & C016 0µ47 50v in station selector module | 14-09-04 |
| JVC | BX11 | tuning drift from cold | 4 sm electrolytics on sub panel C015 22µ 6v, C016 0µ47 50v & C014 3µ3 50v | 14-09-04 |
| JVC | BYX | Int tuner drift & patterning | Dry joints IF module | 14-09-04 |
| JVC | BYX chassis | Loss of some chans | IF module SBY-F004A proved to be heat sensitive - retune T102 V C Osc coil | 14-09-04 |
| JVC | BYX chassis | No memorise chans or settings | IC001 MN1226S, C106, C107 on station select module | 14-09-04 |
| JVC | C-140EKY | Back line across raster | C553 2200µ 35v | 14-09-04 |
| JVC | C-140EKY | field collapse | R552 1R8 2W | 14-09-04 |