Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sharp | DA100 56FW53H, etc | modification | Sharp advise to fit avalanche diode (RHEX0875BMZZ) across C720 (150V rail smoothing cap) to limit any damage in event of a fault in PSU | ||
Sharp | DA100 56FW53H, etc | frame cramp at top or int. frame collapse | C502 470uF 25V | ||
Sharp | DA100 56FW53H | tripping at start-up, LED flashing on/off, will come on after 30 min | IC1001 micro RHIX1686BMZZ, may be proven using hairdryer/freezer | ||
Sharp | DA100 56FW53H | no NICAM, 'mono' on screen display | IC201 TDA4472MFL (RHIX1672BMZZ) | ||
Sharp | DA100 56FW53H | excessive width, about 4'' too wide | Q506 leaky (RHTX0151BMZZ) | ||
Sharp | 56FW53H | Service mode access | Switch on with vol down & Ch up buttons pressed. The ch up/down & vol up/down buttons on the handset are used to alter values & each setting must be stored by pressing St/by | ||
Sharp | 56FW53H | No audio | IC302 (TDA7480) l/h audio o/p Ic (about 8ukp from Seme) and two chokes connected to it L315/L316 (3.3microH) (about 1.50ukp packet of 5 from Farnell) were burnt to a crisp.After replacement I still had no l/h audio, found Q306 (2SC2412 sm) s/c in the +5v feed to the Ic (I used a BC847) | ||
Sharp | 56FW53H | Lines of R, G & B at top of screen & pin cush dist at top | Need to set up NVM values for specific crt type obtained from Sharp Tech bulletins. Also may need to alter geometry settings in service mode. | ||
Sharp | 56FW53H | Dead - LOPTr s/c | Fit new BUH515, check for dry joints C613 & C607 330µ 10v hi esr | ||
Sharp | 56FW53H | Blows LOPTr int at sw on | C607 330µ in line driver |