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Repair tips

Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

MakeModelProblemSolutionDate
Found: 711
Sharp5BSA 51AT15HLines/chopper tfmr sqealingC804 & C822 220µ in line driver stage14-09-04
Sharp5BSA 51AT15HLOPTr runs hot and goes s/creplace Q602 RHTX0118BMZZ (LOPTr Q601 part no RHTX0132BMZZ)14-09-04

Sharp5BSA 51AT15HNo greenEnter service mode (V-, P+ & mains on) to check setting - was set to zero14-09-04
Sharp5BSA 51AT15HNo sound/pic - goes to st/by aft 30 secsC604/C622 220µ in line dr cct (not C804/822)14-09-04
Sharp5BSA 51AT15HNo sound/pic & all o/p volts a third downQ509/510 in fop s/c14-09-04
Sharp5BSA 51AT15Hno teletextIC1001 SDA5254 (RHIX1578BMN1)14-09-04
Sharp5BSA 51AT15Hnot stopping in tuning, pic distortedcorrupted EEPROM, enter service mode and set AFT to 9F14-09-04
Sharp5BSA 51AT15Hpic jumpingreplace C209 100nF 20V and C808 47nF 20V14-09-04
SHARP5BSA 51AT15HPICTURE JUMPINGREPLACE C209 AND C808 CAP*100NF20V, CAP*47NF20V14-09-04
Sharp5BSA 51AT15Hpowers up from mains switch, LED flashes then goes out with no pidc or sound. When switched off high pitched noise comes from speaker going down in frequencyDJ on D710 and C713 1000uF 25V s/c14-09-04
Sharp5BSA 51AT15Hshort pic & no reponse to front or R/CQ509 BC635, Q510 BC338 next to field o/p pair & C713 100µ 16v14-09-04
Sharp5BSA 51AT15HSlow start, cogging, loptr failure or trippingReplace all 6 elects on psu sec & Q704/708 BC338-40 5v reg trs & Q601 BU508DFI LOPTr14-09-04
Sharp5BSA 51AT15HSmall pic - HT low (should be 108v)Check D716 27v & D717 75v zeners by replacement14-09-04
Sharp5BSA 51AT15HSnowy raster onlyNo 12v to tuner - R243 5R6 1/2w o/c also check C713 1000µ 35v in -10v supply for various faults14-09-04
Sharp5BSA 51AT15HThree col flyback lines at top of screenD504 & D507 1N414814-09-04
Sharp5BSA 51AT15HTo reprog NVM for AFT/AGCAuto tune tv to a chan, fine tune for best result then go into service mode, go to AFT adj, & press key symbol14-09-04
Sharp5BSA 51AT15Hvertical picture shift, alters with temperaturereplace R512 180k 0.5W next to Q50814-09-04
Sharp5BSA 51AT15Hwhistling noise and picture tearing for first 3 min from coldC604 220uF 10V in PSU14-09-04
Sharp5BSA 51AT15HField foldover at bottom with fb lines near centre of screen; no front controls or R/CQ509 BC635 & Q510 BC338 in field timebase both leaky & affecting data lines14-09-04
Sharp5BSA 51AT15H/15AT151RDead st/by only - led goes out when chan no. pressedNo line drive pin 12 MC4407 IC801 as no 5v supply at pin 35. Q708 BC338-40 st/by tr s/c14-09-04
Sharp66AS06HShuts down aft 1 sec with R632 going o/cC619 560nF 250v - also check R632 & R619 39R 1/2w14-09-04
Sharp66CS-03HSlow start up from cold - LEDs flash Gn/orCheck dry joints & C714 1000µ 25v D712 reservoir cap14-09-04

Sharp66CS03BLOWING LINE O/P TRANSISTORRESOLDER DRY JOINTS ON SCAN COIL PCB14-09-04
Sharp66CS03St/by onlyLeaky blue disc ceramic cap 2n2 2kv on underside of pcb14-09-04
Sharp66CS03TrippingC714 1000µ 10v & LOPTx arcing - check also dry joints scan coils14-09-04
SHARP66CS03HDEADCHECK C601 FOR S/C (FITTED UNDER D605 ON PRINT SIDE IS BLUE DISC TYPE)14-09-04
Sharp66CS03HDEADCHECK C601 FOR S/C (FITTED UNDER D605 ON PRINT SIDE IS BLUE DISC TYPE)14-09-04
Sharp66CS03HDead - LOPtr s/creplace C604, C714 & check dry joints scan coil pcb14-09-04
SHARP66CS03HDEAD BUT COMES ON AFTER A WHILEREPLACE C714 1000MFD25V14-09-04
Sharp66CS03HField scan distorted in upper half45v supply at C619 only 15v. R643 5R6 overheating, D623 10v zener sm leaky, R632 1A cct prot o/c14-09-04
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