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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: 626
Bush2568NTXInt line shift with foldover - LOPTr damagedR451 dry joints14-09-04
Bush2568NTXLack of width & E-WR629 2R7 o/c & dry joints in area14-09-04

Bush2571NTXSt/by onlyR826 470k ?w o/c in psu sec14-09-04
Bush2571NTX 11AK19Blank raster, no sound, ok thro' SCART & OSD OKIC807 7805 regulator,supply was down to 2.5V14-09-04
Bush2571NTX 11AK19Bright green pic with fb linesTDA108JF on crt base14-09-04
Bush2571NTX 11AK19Field collapseCheck R704 100R safety res, if o/c change also TDA8351 FOP chip. Check 15v supply pin 3 IC701 if missing check comps from pin 6 LOPTx - D606 BA157 o/c14-09-04
Bush2571NTX 11AK19No pic, sound /text / menu and on screen graphics all work okQ500 and Q504 in metal can burnt out. No reason found14-09-04
Bush2571NTX 11AK19St/by only with psu ticking - HT about 50% of normalReplace R866 and R867 (0.33 ohms) psu secondary LT supplies14-09-04
Bush2571NTX 11AK19Tripping psuIC301 TDA6108JF(RGB chip) & R914 (1R) o/c both on CRT base & check LOPTr14-09-04
Bush2571NTX 11AK19E3Narrow pic with no E-W corr adjR629 safety res 2R7 1/2w feeding BUK444 o/c - C630 dry joint caused it14-09-04
Bush2620Flashes randomly appear across screenVR101 AGC preset loose conns14-09-04
Bush2620RANDOM FLASHES ON SCREENAGC PRESET INT OC14-09-04
Bush2714Dead with 2.5A mains fuse blownTr801 BU508A s/c, R801 2R2 5w o/c, R809 270k o/c, IC801 TDA4601 & therm TH802 CHS pt no 12001GT14-09-04
Bush2714Stuck in st/byR603 3k9 5w HT feed to LOP o/c14-09-04
Bush2714Stuck in StBy - Psu okR603 3k9 5W oc ( line driver feed )14-09-04
Bush2720BRIGHTNESS CONTROL NOT WORKING 2 LOW HEIGHT 3 BRTR901 SC ON TUBE BASE 2 D2801 33v ZENER SC 3 R901 ON TUBE BASE OC14-09-04
Bush2720Lack of heightD801 ( 33V ) s/c14-09-04
Bush2720Lack of width & corrugated verticalsHT smoothing cap C827 47µ 250v14-09-04
Bush2720No brightness control - OSD works okTr901 BC558 on crt base14-09-04
Bush2720 11AK03Uncontrollable brightness & flyback lines.R901 ( 220 ) on tube base o/c.14-09-04
Bush2721Lack of heightD2801 33v zener s/c14-09-04
Bush2721line pulling/tearing/lack of widthC827 47µ 160v14-09-04

Bush2722Uncontrollable brightness with fback linesR901 220R on crt base o/c14-09-04
Bush2768NTXSILSt/by only - LOPTr blownAlso replace line dr tr 2SC1573 14-09-04
Bush2814TDead - no EHT or htrsR603 3k9 5w HT feed to LOP o/c14-09-04
Bush2814TNO EHTR603 3k9 5w OC14-09-04
Bush2820TLine pulling, tearing or bent verts - lack of widthC827 47µ 160v HT res cap14-09-04
Bush2850/2855Service Mode accessPress Red & blue buttons together then P- & V+ together within 5 secs14-09-04
Bush2850NTXDeadDry joints scan coil plug & TEA5101 fop chip & TEA5101 on crt base14-09-04
Bush2850NTXNo pic with burning smellburn up on red wire of scan coil plug - wired direct to pcb14-09-04
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