| Make | Model | Problem | Solution | Date |
| | | |
| Found: 711
|
| Sharp | 56FW53H | Dead - LOPTr s/c | Fit new BUH515, check for dry joints C613 & C607 330µ 10v hi esr | 14-09-04 |
| 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. | 14-09-04 |
| 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) | 14-09-04 |
| 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 | 14-09-04 |
| Sharp | 59CS-D8H | Various inc slow start up, Txt int appears, buzz on sound | C714 1000µ 16v in 5v supply | 14-09-04 |
| Sharp | 59CS03H | Audio noise - int | Q305/306 | 14-09-04 |
| Sharp | 59CS03H | Dead | TDA8375A IF/video proc/tbase chip faulty IC201 (low res between pin 56 & Chassis) | 14-09-04 |
| Sharp | 59CS03H | Dead & whistling | Q306 2SA1797Q sm audio amp s/c - also check Q306, D301/2, D305 1N4933 & check for dry joints back of scan coil pcb | 14-09-04 |
| Sharp | 59CS03H | Field lin creeps up at bottom | Q707 C33840 = BC338-40 | 14-09-04 |
| Sharp | 59CS03H | No / int field collapse | Resolder L501 ( joints on body ) | 14-09-04 |
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| Sharp | 59CS03H | No Blue | B drive was et to zero in service menu (vol down/chan up whilst sw on) | 14-09-04 |
| SHARP | 59CS03H | NO SOUND | CHECK R643 FOR O/C 5.6 OHM | 14-09-04 |
| Sharp | 59CS03H | No sound - headphone ok | 22R 0.5w safety res on 40v rail from loptx o/c | 14-09-04 |
| Sharp | 59CS03H | No Txt or OSD | Had fallen to zero in user menu - possibly by flash over? - sorry, no instructs here - try user | 14-09-04 |
| Sharp | 59CS03H CS | Dead - psu dead (give up now!) | Chopper MOSFET s/c, R706, D718, 2 x BC338 got psu working on dummy load - LOP Tr s/c, D601 1N4935 in 13v supply s/c, now have pin cush dist - D619/621 s/c | 14-09-04 |
| Sharp | 59CS05H | CRT low emission fault with poor focus | Check R618 2k2 | 14-09-04 |
| SHARP | 59CS05H | POOR FOCUS LOOKS LIKE CRT | REPLACE R618 22K OHM | 14-09-04 |
| Sharp | 59CS05H | Slow start up | C714, 713 & check for dry joints | 14-09-04 |
| Sharp | 5BS-A | Field scan reduced with cramping top/bottom | Check- C712 220µ, C713 1000µ, Q502 BD825, Q504 BD828, Q509 BC635, Q510 BC338, D501 1N4148 | 14-09-04 |
| Sharp | 5BS-A | int snowy - when tapped | SF201 SAWF | 14-09-04 |
| Sharp | 5BSA | Blank raster with fb lines (sound ok) | D1002 near r/c rx - 1N4148 ok | 14-09-04 |
| Sharp | 5BSA | Dead - LED pulses red | 5VB o/p low - Q708 BC338-40 & D715 5v1zener | 14-09-04 |
| Sharp | 5BSA | Dead - s/c across lop tr | LOPTx faulty - orig replacement also faulty | 14-09-04 |
| Sharp | 5BSA | Field scan reduced | C713 1000µ 16v faulty | 14-09-04 |
| Sharp | 5BSA | Incorrect line freq | check supply to IC801 MC44007 - if low check caps in psu - C713 1000µ 16v, C712 220µ 16v, C714 470µ 10v, C716 100µ 16v, C719 470µ 35v & C604 / C622 220µ 10v in line dr | 14-09-04 |
| Sharp | 5BSA | Int dead then perm dead | dry joints, R611 3k3 ?w was 2k5, no line drive - no 5v to IC801pin 35. Q708 BC338-40 reg o/c | 14-09-04 |
| Sharp | 5BSA | No sigs - searches but won't store | AFT switched off in service mode | 14-09-04 |
| Sharp | 5BSA | No sound/pic & all o/p volts a third down | Q509/510 in fop s/c | 14-09-04 |
| Sharp | 5BSA | No Txt | Q806 sm 2SC2412 - feeds CVBS sig to pin 30 micro IC1001 | 14-09-04 |
| Sharp | 5BSA | slightly off tune | reprog afc - loc OD - set data to 9F - how to access prog mode?? | 14-09-04 |