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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: 124
DaewooGB20A5No picture sound ok power supply working okIC1301 TDA8356 _ D301 5.1 Zener14-09-04
FergusonA51FNO CONTRASTREPLACE RL0514-09-04

FergusonA51FNo contrastRL05 o/c14-09-04
FergusonA51FPICTURE BREAKING UP, CRACKLING NOISEREPLACE LOPTX/FOCUS UNIT14-09-04
FergusonA51FTrippingField IC & TV92 BC848 sm14-09-04
FergusonA51NDistorted soundC131 10µ 16v in IF can14-09-04
FergusonIKC2 A51FDead - LED flickers twice brieflyLOPTx14-09-04
FergusonIKC2 A51FSound lowWeak audio o/p at pin 10 IF can, CS14 1µ 63v in the can low cap14-09-04
FergusonIKC2 A51FTuning modepress and hold the PROG button in for a few seconds B4 it displays the on screen graphics. To unskip channels; display the tuned station by pressing PROG for a few seconds and then press the red fasttext button to store.14-09-04
GoldstarCF28A50 PC58AField - dist top edge of picCheck electrolytics in field stage & fop chip IC351 TDA8350Q14-09-04
GoldstarCI20A50Field collapseFR718 3R3 o/c14-09-04
HitachiA5E/W faultyReplace IC601 TDA8350Q14-09-04
HitachiA5field faultTDA8350Q & D718 BYD3314-09-04
HitachiA5To enter service modeEnter factory mode by holding "Vol+" & "Vol-" whilst sw on, then press "Tuning" button under flap on r/c14-09-04
HitachiA5To exit Factory Mode (Model displayed on screen)Switch to st/by whilst service mode is displayed14-09-04
HitachiA5To get out of factory pre-set mode (Model & proc type displayed on screen)Hold "Vol+" & "V0l-" buttons in whilst switching on14-09-04
HitachiA5 C2976TNSparks around crt base then reverts to st/byLOP stage tuning cap o/c & clean up print on crt base14-09-04
HitachiC28300,C2576TN etc A5 chassisField lin & lines at top of picC725 33nF 400v14-09-04
HitachiC28300,C2576TN etc A5 chassisInt trips & linesC719 4µ7 250v smoothing cap for 200v in E-W corr & check joints T702 (under plastic strut) & R950 68k near HT pot14-09-04
HitachiC28300,C2576TN etc A5 chassisRed pic with fb linesR829 fusible on crt base o/c (not shown on cct diag)14-09-04
HitachiC28300TN A5Long time for pic to appear & white bands acrossC954 1000µ 35v in 12.6v supply14-09-04
HitachiC2976TN A5E/W faultyL751 dry joints IC601 TDA8350Q faulty14-09-04

HitachiC2976TN A5Lines at top of pic44v supply to IC601 pin 8 from LOP low at 25v. Check D718/9 BY33J & C725 33nF 400v for o/c14-09-04
LGCF25A50FField mod when FOPTr has blownFit TDA8350Q & use heatsink compound as well as the grey thermal transfer pad between the chip & the heatsink. Change C352 to 22mfd (was 47mfd) 50 volts Change C708 to 22mfd (was 47mfd) 100volts . This is located to the left of the LOPT on the 45 volts rail. Change FR359 to 22ohms half watt fuse resistor (was 10 ohms) This is also located to the left of the LOPT on the 45 volts. rail. Add a 0.01 mfd cap on pins 8 & 9 of the frame chip & 0.1mfd between pins 7 & 8 (both 100volts)14-09-04
LGCF25A50FReverts to st/by aft 2-3 secs, HT drops to 60vIC351 FOP chip TDA8350Q & FR350 10R fusible14-09-04
MitsubishiCT21A5STXInt start up/switches offDry joint Q954 - also check C905/914 & other dry joints 14-09-04
MitsubishiCT21A5STXPATTERN ON SCREENREPLACE C957 AND C95914-09-04
MitsubishiCT21A5STXSlow start upC906 47µ 50v hi esr14-09-04
MitsubishiCT25A5STXDEADREPLACE C914 47MFD35V AND C905 470MFD25V14-09-04
MitsubishiCT25A5STXField collapseIC401 TDA8171 FOP chip & R514/516 0R8 - Mitsi res must be used Pt no MITS103P39709014-09-04
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