Make | Model | Problem | Solution | Date |
| | | |
Found: 165
|
NEI | ALL | Dead comes on after 5 mins | Replace R802 Thermistor | 14-09-04 |
NEI | ALL | LOW FIELD AND OR LOSS OF VIS | ZTK33 TUNING REG. | 14-09-04 |
NEI | ART701 | Field bounce when heated | Height pot P302 int | 14-09-04 |
NEI | C25F1FXN | Blank raster when A1s advanced | R121 270k o/c near LOPTx | 14-09-04 |
NEI | C28F FXN | Dead LOP tr TR128 s/c | Burn up on main pcb pl/skt to scan coils - check D10 | 14-09-04 |
NEI | C28F FXN | Flickers for first five mins | 10µ cap in middle of IF module | 14-09-04 |
NEI | C28F1 | Dead | C133 0µ33 in e/w dry joints & o/c damaged Tr128 BU508F, R371 1R, R138 0R22, D118 BY228, D117 BY229, IC107 TDA8145, L116 " D10 BY399 | 14-09-04 |
NEI | C28F1 | Pic & sound unstable for first 5 mins | C016 33mfd, C017 2.2 mfd & had all gone low in value - also C313, C110 & C109 | 14-09-04 |
NEI | C28F1 | Slow start up | C313, C110 & C109 | 14-09-04 |
NEI | C28F1FXN | Blank raster/no sound | R121 270k in beam curr/scastle pulse o/c | 14-09-04 |
|
NEI | C28F1FXN | Dead | C131 0µ91 cap in lop stage burnt due to dry joints & BU508 & 2 x E/W diodes, D110 HT rect s/c | 14-09-04 |
NEI | C28F1FXN | Dead | Fit Power supply repair kit (Phoenix modkit 15, may still be available from CHS order code 39000H ) and check for dry joints around C133; snubber circuit. | 14-09-04 |
NEI | C28F1FXN | Dead - burnt hole by C133 330n 250v | TR128,[BU508AF]/ D116,[BY228]/D117,[BY299]/ R371,[1r safety]/. If R366,[2r2 safety] is o/c the EW chip TDA8145 is s/c and you will find R154,[27r safety] in the feed to the chip o/c. I had to change the chopper transistor that was s/c TR100,[SGSIF344] and for good measure IC100,[TDA8380] and IC101,[TCTD1101 were also changed. if you find problems setting up the EW you may find RV105,[100K] has changed in value. | 14-09-04 |
NEI | C28F1FXN | E/W dist & overwide | IC107 TDA8145, R366 2R2 & R371 1R safety res | 14-09-04 |
NEI | C28F1FXN | Field bounce for first 5 mins | Check elect caps in IF unit | 14-09-04 |
NEI | C28F1FXN CE25 | Dead - st/by LED flashes | C110 220µ 63v low cap | 14-09-04 |
NEI | C28F1FXN CE25 | No E/W or width settings | IC106/7 replacement have no effect - no line pulse to IC107 TDA8145 - R122 150k o/c | 14-09-04 |
NEI | CE25 series | Int start up / IF instability | Connect wire link between jungle IC ground lugs to chassis | 14-09-04 |
NEI | CE25/28 series | St/by only with LED sw correctly | Check PSU earth link between tuner & LOPTr heatsink for dry joint | 14-09-04 |
NEI | CTV61R | int op | dry joints start up positor & D805 1N4007 | 14-09-04 |
NEI | CTV61R | tuning drift from cold | ZTK33 D001 | 14-09-04 |
NEI | E28G1FXN E5 | Dead - all sec rails low - no st/by LED | T682 BD679 15v reg | 14-09-04 |
NEI | E28G1IFXN | Dead - BUZ90AF chopper tr 651 s/c | Check D653 is BYT52M not BA158 - & check hi value res to pin 2 & 3 of TDA4605 & for dry joints & Mains smoothing cap 220µ 400v is not o/c | 14-09-04 |
NEI | E28G1TFXN | Dark pic & osd - R/C inoperative | 5v reg feed near rect diodes on psu sec only 4v - (7v in st/by); R686 2R2 hi res | 14-09-04 |
NEI | E28G1TFXN | Dead with faint tripping noise | C665 220µ 400v o/c | 14-09-04 |
NEI | E28G1TFXN | Int sound & vision & power led dim | Poor joints at rects on sec of chopper tfmr | 14-09-04 |
NEI | E28G1TFXN | Width comes in and hour glass effect, int clears to excessive width | C753 680nF 630VW was dry jointed & damaged, L751 causede excess width (had shorted turns) 690 turns reqd - TDA4950 & BY299 diode | 14-09-04 |
NEI | E28G1TFXN E5 | Buzz on mono reception - worse when OSD present | Mod reqd - remove C150 33pF from main pcb & fit in posn C1591 on vert pcb. Add 100mm wire from left of free pin of C1591 to right of free hole of C150 | 14-09-04 |
NEI | E28G1TFXN E5 | Dead | R866 2R2 safety res o/c, due to D682/683 BY399 failing when hot | 14-09-04 |
NEI | E28G1TFXN E5 | Dead - st/by LED flashes | Mains smoothing cap 220µ 400v | 14-09-04 |