| Make | Model | Problem | Solution | Date |
| | | |
| Found: 355
|
| JVC | AV21F1EK | No sound or vision - heaters & EHT present | C834 1µ 50v leaky | 14-09-04 |
| JVC | AV21F1EK | No tuning or osd | Dry joints at trs on long heatsink by psu | 14-09-04 |
| JVC | AV21F1EK | Sound int | Dry joint IC501 TDA3810 on daughter board by main audio o/p | 14-09-04 |
| JVC | AV21F1EK | Wobbly pic - int | Dry joints VIF/sync proc pcb | 14-09-04 |
| JVC | AV21F1EK JX Chassis | No OSD ot Txt - could be int | Check dry joints reg IC522 | 14-09-04 |
| JVC | AV21F1EK JX | Aft 5 Mins Pic shakes from left to right sometimes | C02 or 6Mhz crystal | 14-09-04 |
| JVC | AV21F1EK JX | Blank screen | Bad joints pin 2 LOPTx | 14-09-04 |
| JVC | AV21F1EK JX | COMES ON FOR 10secs WITH LEDS LIT BUT NO PICTURE A | REMOVE PLUG "Q" IF SETS POWER SUPPLY THEN RUNS AT 127v REPLACE IC801 TA8216AH | 14-09-04 |
| JVC | AV21F1EK JX | Dead - int blows BU508AFI LOPTrs | Check for dry joints/resolder double sided video/chroma daughter board where line osc IC203 resides esp links EX001, 002, 004 015 & 019 - caused by int momentary loss of line osc | 14-09-04 |
| JVC | AV21F1EK JX | Hum bar on pic | Ripple on HT line caused by L2001 in chopper tr base drive o/c | 14-09-04 |
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| JVC | AV21F1EK JX | Int loss of signals | 4Mhz Xtal inside synthesis tuner dry joint | 14-09-04 |
| JVC | AV21F1EK JX | Int sync after 5 mins | C02 tant cap in IF AGC cct | 14-09-04 |
| JVC | AV21F1EK JX | Int tuner drift | Dry joints IC522 5v reg | 14-09-04 |
| JVC | AV21F1EK JX | LED comes on for 10 secs then goes off in prot mode | With plug R dis'd to isolate psu from LOP stage still tripped. When plug Q removed (feed to audio chip) set stayed on. IC801 TA8216AH faulty | 14-09-04 |
| JVC | AV21F1EK JX | PICTURE LOOKS TO HAVE HUM BAR ON IT | L2001 IN CHOPPER BASE FEED OC Pt-No CELC005-2R5 | 14-09-04 |
| JVC | AV21F1EK JX | REPEATED FAILURE IC3101 | CHANGE C105 TO 4.7uF LINK -VE TO IC3101 HSINK | 14-09-04 |
| JVC | AV21F2EK | No sigs or OSD | No 5v supply - 6R8 2w reg feed res o/c caused by excess current from Txt pcb due to IC002 SDA5243 faulty | 14-09-04 |
| JVC | AV21H1EK JX | Blows Q502 LOPTr at sw on | D502 BY228 E-W mod diode s/c | 14-09-04 |
| JVC | AV21H1EK JX | No signals or osd | IC522 12v reg dry joints | 14-09-04 |
| JVC | AV21H1EK JX | Various int faults | Check IC522 reg on large heatsink for dry joints | 14-09-04 |
| JVC | AV21H2EK | No sigs or graphics - ok via scart | No i/p to 5v reg IC522 due to R527 6R8 o/c - replace both | 14-09-04 |
| JVC | AV21H2EK | No sigs, OSD, Txt - ok on scart & R/C | R527 6R8 1w fusible o/c - near LOPTx | 14-09-04 |
| JVC | AV21H2EK | Random "Nicam" displayed on screen | SF012 filter typre 32.9 on Nicam pcb - upgrade to type 33 Pt no CE42606701 | 14-09-04 |
| JVC | AV21S2EK | "NICAM" RANDOMLY APPEARS ON SCREEN | REPLACE SF012 (BLUE) ON NICAM PCB | 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 | AV21TS1EK | Lack of height aft 10 mins | TDA8351 & check FR552 0R82 2w, FR553 TDA8351 is at fault. Check the supplies lines at this IC. Pin 6 should be 47.3V and Pin 3 should be 14.9V. If this is incorrect check resistors FR552 0R82 2W part No
QRH027K-R82M. and resistor FR553 6R8 1/2W part No QRH127J-6R8M. These resistors are at pins 8 and 7 of the LOPTX. | 14-09-04 |
| JVC | AV21TS1EK | No sound Nicam or FM - if Txt selected header appears for 1 sec then reverts to pic | R619 sm not soldered properly | 14-09-04 |
| JVC | AV21TS2EK | Field lock in wrong place | TB1227AN IC101 Jungle chip u/s | 14-09-04 |