66FW53H Repair Tips
Search: 66FW53H
Results 19
Results 19
| Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
|---|---|---|---|---|---|
| Sharp | 66FW53H | Dead - Neon lit | R713 and R714 560K high or o/c | ||
| Sharp | 66FW53H | Dead - neon lit ... another fault! | Check the BZW04145 diode across C720, if short circuit, replace and also replace opto-isolator IC704 MOC8106 and IC706 TL431 voltage reference. You can put an 817 opto-coupler in diagonally | ||
| Sharp | 66FW53H | Colours ramping, poor greyscale | Replace IC1002/3, Set will need reprogramming afterwards | ||
| Sharp | 66FW53H DA100 | Failure of Q601 BUH515 and possibly Q506 | Found dry joints on C613. Also R613 had burnt top of C613. Fitted new parts, found Circuit no longer available. Sharp by name sharp by nature came to mind. Set only just over two years old | ||
| Sharp | 66FW53H FW | Dead only neon lit | Check D735 across 150v rail, if s/c you will need to replace the opto and the D735. Check Q601 line o/p transistor as this may also be leaky | ||
| Sharp | DW100 66FW53H | Dead - usually IC705 opto is to blame - Pt. No. RH-FX0106BMZZ | changed to RH-FX0110BMZZ - When the opto fails it usually takes out the line output transistor(BUH515) and the feed resistor to the line o/p stage 1R2W resistor. You need to add a 145v avalanches diode to the circuit on the print side directly beneath C720(H.T. reservoir cap) which also will need to be replaced. | ||
| Sharp | DA100 66FW53H | narrow pic with E-W error | replace IC801 (RHIX1688BMZZ) | ||
| Sharp | DA100 66FW53H | green gun reduced to give a magenta pic | corrupted EEPROM IC1003 (RHIX1603BMZZ) | ||
| Sharp | DA100 66FW53H | dead, stby LED is on | Q5407 2SA1837 and Q5408 2SC4793 s/c on CRT base | ||
| Sharp | DA100 66FW53H | Dead - LOPTr s/c | Check for dry joints C613 & opto | ||
| Sharp | 66FW53H DA50W | Sound dist | IC1300 sm chip on plug in pcb overheats & contaminates board - exchange boards reasonable price pt no DUNTK7285BMW1 | ||
| Sharp | 66FW53H DA50W | Contrast level reduces aft 20 mins | IC1801 TEA5101B RGB chip on crt base | ||
| Sharp | 66FW53H DA100 | Dead | IC 705 RH-FX0110BMZZ, CNY17F-2; C720 RC -EZ0258CEZZ, 100UF 200V; D735 RH-EX0875BMZZ DIODE AVALANCHE; D712 RH EX0419BMZZ, DIODE15 ZENER; Q701 RH-TX0198BMZZ S5410N80A ; Q702 RH-TX0182BMZZ 2PD602AR[s.m.]; Q703 RH-TX0151BMZZ 2SD2391Q [s.m.] | ||
| Sharp | 66FW53H DA100 | Constant trip | Bypassing prot (s/c pin 15 IC702 to chassis) brought pic on with limited functions - sm NVROM chip faulty & adj geometry settings (maunual reqd) | ||
| Sharp | 66FW53H | St/by only | D735 (RH-EX0875BMZZ), IC705 CNY17F-2 (RH FX0110BMZZ, C720 100ยต 200v - use heat sparingly when fitting new opto | ||
| Sharp | 66FW53H | St/by only | R714 560k start up res - also check R713 560k | ||
| Sharp | 66FW53H | Rotated pic (not horizontal) | Replaced the following in rotation control cct on crt base - IC1601 VHIBA4558F/-1 (BA4558 ic), Q1603 VS2SC2412KQ-1 (2SC2412 trans), Q1604 VS2SA1037KQ-1 (2SA1037 trans) | ||
| Sharp | 66FW53H | LOPTr repeated failure | LOPTx faulty | ||
| Sharp | 66FW53H | Dead with bang | C720 blown, R765 & 766 100R sm o/c, R623 1R o/c & Q601 BUH515 s/c, caused by opto IC501 MOC8106 |