| Make | Model | Problem | Solution | Date |
| | | |
| Found: 711
|
| Sharp | 37GQ20 | No raster - sound present | IC1001 (?34 trade) | 14-09-04 |
| Sharp | 37GQ20H | Field fault - pic shifted up with top dist | Check C712 & 713 220µ 16v in psu | 14-09-04 |
|
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| Sharp | 37VT-24 | Reverts to st/by on bright scenes | R626 1M2 in beam lim hi res | 14-09-04 |
| Sharp | 37VT-24H | St/by aft 6 secs | R626 1M2 in trip cct o/c | 14-09-04 |
| Sharp | 37VT26H | Dead with st/by LED flashing - brief field coll noticed | C509 1000µ 25v | 14-09-04 |
| Sharp | 4BS-B | lop tr blown replacement overheats | line drive incorrect. 5v supply at IC2801 low - IC751 KA7805PI faulty | 14-09-04 |
| Sharp | 4BSA | Int trip with front LED flashing | D602 1N4936 in psu | 14-09-04 |
| Sharp | 4BSA DV5161H | int. goes to stby | resolder blue tuning cap C610 near LOPTx | 14-09-04 |
| Sharp | 4BSA DV5161H | unstable line output from cold, no teletext | EEPROM IC1002 (CHIX1463CJHA), Q1010 BC338 o/c B-E, R604 3k3 0.33W o/c | 14-09-04 |
| Sharp | 4BSC | Dead after initial HT supply rise | IC600 forms part of trip cct. R645 1R 1W safety res o/c | 14-09-04 |
| Sharp | 4BSC | EHT dies away at sw on | R465 1R o/c supply to field chip usually - 12v reg this time | 14-09-04 |
| Sharp | 4BSC | Trips int with burning smell - brief field coll noticed | IC500 fop chip burnt, C506 100µ 25v faulty | 14-09-04 |
| Sharp | 4BSC 66AS05H | blank raster, OSD ok | SMD Q400 2SC2412/BC848 s/c (video buffer transistor) | 14-09-04 |
| Sharp | 4BSC 66AS05H | Dead | Lop tr Q600 2SD1546 u/s. Line drive wfm at C607 cramped - Q606 2SC2412 sm leaky | 14-09-04 |
| Sharp | 4BSC 66AS05H | Dead - LOPTr 2SD1546 failed | Replacement only lasted days - IC800 MC44002P line drive pin 12 only 1v instead of 3v - chip faulty. Also check state of Q601 2SC2271 dr tr & Q606 pre driver tr | 14-09-04 |
| Sharp | 4BSC 66AS05H | Dead - no line drive | IC800 MC44002 jungle chip faulty | 14-09-04 |
| Sharp | 4BSC 66AS05H | Dead with ticking | LOPTr s/c due to dry joints scan coil plug | 14-09-04 |
| Sharp | 4BSC 66AS05H | excessive width with E-W error | L601 shorted turns (RCILP0104CEZZ) | 14-09-04 |
| Sharp | 4BSC 66AS05H | No E-W corr aft replacing TDA8170 FOP chip, R645 & C506 for tripping off | Q603 2SD1913S collector base leakage, and C603 4.7uF high ESR | 14-09-04 |
| Sharp | 4BSC 66AS05H | No line aft repairing dry joints scan coil & LOPTr s/c LEDs sw between Red/Green | leaky s.m. transistor Q606 [2SC2412] in the line
drive circuit. | 14-09-04 |
| Sharp | 4BSC 66AS05H | stuck in stby, when brought out LED goes green, quick burst of EHT, then shuts down with LED red | SMD Q606 2SC2412 leaky | 14-09-04 |
| Sharp | 4BSC DV5940H | dead, LOPTr s/c | Q600 2SD1546 s/c, SMD Q606 2SC2412 leaky, resolder scan coil plug | 14-09-04 |
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|
| Sharp | 4BSC DV5940H | stuck in stby | D600 1N4936 s/c, R645 1R 1W o/c on LOPTx pin 3 | 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 | 51AM-12G | red raster with flyback lines then shuts off | Q875 on crt base - measured ok out of cct | 14-09-04 |
| Sharp | 51CS | Dead | C714 1000µ 10v slightly hi esr (0.8), R643 10R (22R?) looks burnt - replaced with 10R ?w | 14-09-04 |