Make | Model | Problem | Solution | Date |
| | | |
Found: 24
|
Nokia | 6630 | LINE DOWN RH SIDE | CHECK 470 mfd LT LINE | 14-09-04 |
Nokia | 6630 Core 2 | Blank raster with fback lines | Pin 2 LOPTx dry joint | 14-09-04 |
Philips | L7.2E 21PT1663 | Reverts to st/by aft brief period (no pic) | Prot mode operating - FOP chip IC7401 was s/c & R3449 1R ?w, R3451 2R2 1/3w o/c. Fit BZX79C51 zener across pins 4 & 5 of FOP chip (anode pin 4) to prevent chip damage | 14-09-04 |
Sharp | 4BSC DV6632H | burst of EHT then shuts down | IC500 TDA8170 s/c R645 1R 1W o/c | 14-09-04 |
Sharp | 4BSC DV6632H | frame foldover at the top | C505 100uF 40V | 14-09-04 |
Sharp | 4BSC DV6632H | line pulling, bent verticals | C623 4.7uF 50V next to Q603 regulator | 14-09-04 |
Sharp | 4BSC DV6632H | repeated failure of LOPTr | resolder scan coil connections | 14-09-04 |
Sharp | 4BSC DV6632H | very faint colour lines on the top | C501 VCEAGA1HW107M, C506 VCEAGA1VW107M leaky | 14-09-04 |
Sharp | BCTV-A DV6635H | Dead with burning smell | C706 1n 2kv burnt | 14-09-04 |
Sharp | BCTV-A DV6635H | E/W dist & onlt top half of field scan | L604 15µ melted due to C607 0µ56 250v low cap | 14-09-04 |
|
Sharp | BCTV-A DV6635H | E/W faulty | TDA3850 field/EW o/p chip | 14-09-04 |
Sharp | BCTVA DV6635 | Dead - lop tr s/c | dry joints scan coils, R619 & 632 39R ?w o/c - C619 0µ56 o/c | 14-09-04 |
Sharp | BCTVA DV6635 | Repeated failure of lop tr | Dry joints at yoke end of scan coil connector or L603 | 14-09-04 |
Sharp | BCTVA DV6635H | No sound | multiplexer IC303 HEF4053BP - can also be caused by corrupt eeprom | 14-09-04 |
Sharp | BCTVA DV6635H | PIC FLICKERS DURING HIGH BRILL OR SUBTITLES | INCREASE VALUE OF C2442 FROM 47nf TO 1mfd Sharp VCEAGA1HW105M ( 1mfd , 50v ) | 14-09-04 |
Sharp | BCTVA DV6635H | Pic goes dark & disappears aft few mins | Scastle pulse to IC400 TDA4681 misshapen - FOP chip TDA8350Q faulty - pin 2 o/p | 14-09-04 |
Sharp | BCTVA DV6635H | T700 SWITCH MODE TRANSFORMER CHANGE LATER TYPE NOT | T700 OLD TYPE Sharp RTRNZ0528BMZZ NEW TYPE Sharp RTRNZ0519BMZZ | 14-09-04 |
Sharp | DV6632 | Dead - when sw on from st/by led goes green for 5 secs then reverts to red | processor IC800 MC44002
| 14-09-04 |
Sharp | DV6632 | INT BLOWING LINE O/P TRANSISTOR OR INT LINE COLLAPSE | CHECK FOR DRY JOINTS ON SCAN PCB ON CRT | 14-09-04 |
Sharp | DV6632H | Dead - chopper tr 2SD1546 s/c | Check dry joints in psu esp on Q603 & R710 100k 2w hi res & IC700 MC446022P2 shorted | 14-09-04 |
Sharp | DV6632H | FB lines at top (R,G,B) & shaking pic with pulling | C506 100µ 65v, C623 4µ7 100v | 14-09-04 |
Sharp | DV6632H | Ragged verts & E/W dist | C623 4µ7 63v in E/W cct by Q603 | 14-09-04 |
Sharp | DV6632H | Shuts down completely aft Red then green LED briefly lit | Field o/p chip TDA8170 & R645 1R 1w - check 3x100µ caps behind fop chip | 14-09-04 |
Sharp | DV6632H | Tripping | Dry joints scan coil plug & leaky LOPTr BU508AF | 14-09-04 |