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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
Sharp12P-41HNo pic - crt htrs lit - no EHTLOPTx14-09-2004
Sharp14Bst/by onlyvid proc IC801 TDA8362 u/s - line osc section dead14-09-2004
Sharp15AT15H3 coloured lines on the top of the picturereplace D504 (measured Ok). I used 1N4005 as a replacement.14-09-2004
Sharp21LV1DeadChopper Tr 2SD1884, D706 RG2 & LOPTr leaky14-09-2004
Sharp22DS03HField - only half a scanCheck fuses F601 & 602 2.5A14-09-2004
Sharp28hw 53hSHARP 28hw 53h stuck in standbycheck line output transistor for short circuit, if it is relace low voltage caps in line drive circuit particularly on the -10v rail, will also probably have damaged e-w correction transistor , loading coil and other parts in circuit, check to see if ovp diode across c720 on print side is short circuit if it is replace the optocouplers in the psu.19-05-2006
Sharp28HW53H DA50WBlurred picC1815 100nfd SM device leaky, dragging 12 volts down to IC1801 on CRT base14-09-2004
Sharp37AM-23HNVM corruptReplace IC1002 & reprog NVM14-09-2004
Sharp37AM12HPoor pic/sound - noisyUnable to get correct results in service mode - NVM pt no CH-IX1463CJHC14-09-2004
Sharp37AM12SService Menu to acces service modePower off at switch Hold -Volume & +Ch & turn set on switch (set should be service mode) Press Ch+ until NVM (last service setting) Now use volume control on remote change top (red) setting to "C5" Now press "0" on the remote Now put set into standby Now turn set of at switch The set should now be able to be tuned in14-09-2004
Sharp37AM23No green - EEPROM corruptedReplace Q708 & Q704 BC338-40 in psu & C716 220µ 10v14-09-2004
Sharp37AM23HCHILD LOCK ON , PIN NOT KNOWN .PRESS VOL - ON TV & CHILD LOCK ON REMOTE TOGETHER , PRESS MODE ON REM USING CHANNEL +/- TO SELECT CHILD LOCK , PRESS MODE , E14-09-2004
Sharp37AM23HChild Lock removal - pin no not knownPRESS VOL - ON TV & CHILD LOCK ON REMOTE TOGETHER , PRESS MODE ON REM, USING CHANNEL +/- TO SELECT CHILD LOCK , SELECT NEW PIN PRESS MODE , E.14-09-2004
Sharp37AM23HCorrupt NVM - OSD is off to right of screenReplace EEPROM available from WVE ?5 & adj elect screwdriver14-09-2004
Sharp37AM23HDead - HT only 40v at LOPTr coll & whiningR704/5 560k14-09-2004
Sharp37AM23HNo tuning & osd almost off screenNVM chip IC100214-09-2004
Sharp37AM23HTo enter service modePress & hold front '+P' & '-V' keys whilst sw on - note hex settings b4 adj. To exit menu just sw off tv.Select with chan +,- ; Adj with vol +,-14-09-2004
Sharp37AM23H 5BSAService mode adjustmentsHold vol up, vol down & chan up buttons whilst switching on14-09-2004
Sharp37AM23H 5BSASnowy & buzzing - wont tune or prog properlyEEPROM IC1002 replacement reqd14-09-2004
Sharp37AM23H 37AT25HStuck in child lock , pin not known .Switch TV on at mains switch , press vol down on TV and child lock on handset together ( on handset only from now on ) press14-09-2004
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