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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: 13
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

Bush2850NTX Schneider TV4Bent verticals and pulsating width (Scene Dependent)Replace CC808 4N7 SMD primary side of PSU you will probably find that the pcb in this area has taken some heat.14-09-04
Bush2850NTX TV4Line collapseCan be dry joints scan coil plug but C419 330nF 400v scan coupling cap burnt & o/c in this case14-09-04
Bush2850NTX TV8Dead apart from led flicker at sw onC203 47µ 250v - checked ok out of cct14-09-04
Bush2850NTX-ADead aft brief micro activityMicro reqs sync pulse at pin 26 within 1 sec from line to function. This was missing due to T301 BC547B in line stage leaky14-09-04
Bush2850NTX-ALine & field collapse (single dot)Burnt line scan coils plug & TDA8170 fop chip, D402 BA157, fus res R408 o/c14-09-04
Bush2850NTX-MSslow start up - reset problemIC101 pin 33 needs 4.8v to start up mod - add 1µ & 100k res to 5v line14-09-04
Bush2850NTX/ADead - no line scanScan pug/skt melted, after repair still faulty due to C307 330nF scan coupling cap o/c & check dry joints14-09-04
Bush2850NTX/MSno graphics, front panel buttons are inoperative, remote is inoperative,no sound, no picture - only blank full size raster with 4-5 coloured horizontal lines on the screen.no flyback supply voltage to frame IC TDA8351 pin 6 caused by R438 0.22 Ohm o/c (near LOPT).14-09-04
Bush2850NTXADead with squegging noise from speakerCry joints C307 in line stage & field coll then visible, TDA8170 & R408 0R2214-09-04
Bush2850NTXAE-W faultyT302 (BC547) S/C and T303 (BC557) leaky.14-09-04
Bush2850NTXAField collapseTDA8170 & R408 0R2214-09-04
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