| Make | Model | Problem | Solution | Date |
| | | |
| Found: 56
|
| Hitachi | 50FX30B | I have a Hitachi 50FX30B rear projection set that won't power on, no power LED on fornt panel. It started shutting down after playing for a little while (or being unplugged) but now nothing at all, except a click when you turn it on.
There is a serie | Hi, If your led`s don`t stay lit your set has a short, check all of the
little chemical fuses near the led`s one or more are open, once you
find the open fuse that`s the line with the shorted part on it, I would
say without some experience with tv repair your probably not going
to be able to fix it yourself, time to call a tech, | 23-06-05 |
| ITT | FX4530 | Blows LOPTr when sw on from st/by | C734 10µ 450v in psu & 4.3nF 1.6kv buffer cap in line scan - check HT = 105v (17") | 14-09-04 |
| ITT | FX5532 Euromono | Lack of height from cold ( about 1 inch ) , clearing | 6C10 ( 220UF , 35V ) in the flyback boost voltage generator network associated with the TDA8170 field output chip 6IC02. | 14-09-04 |
| ITT | FX6320 CORE 2 | Dead | D502 ( BY448 ) by LOPT | 14-09-04 |
| ITT | FX6332 | DEAD , EHT STARTS TO RISE BUT STOPS AFTER SECS | OC44 ( 1000mfd 16v ) IN POWER SUPPLY | 14-09-04 |
| JVC | AV25FX11 | PIC PULSING-HT CONSTANT | DJ - HAIRLINE CRACK ON C011 PSU PANEL | 14-09-04 |
| NEI | 2591FXN | st/by only | D104 5v1 zener, Tr100 chopper, optocoupler, increase value C109 to 3µ3 | 14-09-04 |
| NEI | 2591FXTN | Dead or int dead | HT ok but line drive missing - bad earth conns between chassis & sig earth - hard wired | 14-09-04 |
| NEI | 2891FXTN | Dead | Dry joints scan coil plug had destroyed LOPTr | 14-09-04 |
| NEI | 2891FXTN | Pulling pic | replaced 3 elect caps in IF unit | 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 | 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 | 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 |