BUSH TV TROUBLESHOOTING TECH INFO TIPS

Find out if you have the same problem or symptoms of your televison unit.
_BUSH SYMPTOMS AND CURE

  • 2868ntx 11ak19 see vestel chassis faults.
  • 2868ntx service mode,from install menu,press 4,7,2,5 remote.
  • 2868ntx 11ak19 trips out - replace the tda6107q on crt base.
  • 2868ntx 11ak19 dead with tripping noise - check ew doide d612 (by228) .
  • 2868ntx 11ak19 line output transistor blown- cause scan coil plug dry joints.
  • 2868ntx 11ak19 no t/text ,sda5255-a047
  • 2868ntx dead - can be caused by a faulty loptx.
  • 2871 11ak19 vestel goodmans gtv288.
  • 2871ntx 11ak19 see vestel chassis faults.
  • 2871ntx vestel 11ak19-8a 110deg wide.
  • 2871ntx 11ak19 stby sticks ,l601
  • 2871ntx 11ak19 no high channel tuning low 33v- c504 faulty.
  • 2872ntx 11ak19-e3,dead r870(0r22),c833
  • 2872 ntx the picture would intermittently increase in size with bowed sides on the edges of the picture - resoldering l602 and a few other dry joints in this area cleared the fault.
  • 2872ntx 11ak19 dead replace c833. 220pf 600v+bridge rectifier doides & r817 (2r 2 5w).
  • 2872ntx dead replace resistor r806 (22k) & the mc44604 chip.
  • 2874ntx goes dead - loptx (13420006) arcing when hot.
  • 2875ntx onwa nikkai tlg2805
  • 2875ntx see vestel 11ak19.
  • 2875ntx dead/tripping c925 (1000uf 25v)+c926 (22uf 160v)+r916 (0r68)+c910 (47uf 25v).
  • 2875ntx poor contrast r433 (150k) in the beam limiter circuit.
  • 2875ntx pt92 poor pic/contrast high ht c910 (47uf)+ c908 (10uf) & r433 (180k).
  • 2876ntx dead psu pulsing,loptr (bu508af) cause scan coil plug dryjointed.burnt.
  • 2876ntx pt92 . No sound osd ok philips remote.
  • 2876ntx pt92 excessive brightness rd12 (15r) open circuit (fusible) in video output supply.
  • 2877ntx dead chopper tr(buz90a)+d824
  • 2877ntxsil (11ak19)the set is tripping - d606 s/c in 15v lopt derived supply.
  • 2877ntxsil the set is tripping - resolder e-w and lopt area and check lop transistor for s/c.
  • 2879ntx no sound or picture- r406 +zd422(12v).
  • 2890d 11ak19 see vestel chassis faults.
  • 28zkf wst66 tda8350q getting hot
  • 28zkv see ws6668sil
  • 2914 excessive red- check r919 (680k).
  • 2914 no channel store low 33v to memory chip change iv02 - d405 & 47r
  • 2914 no sound. Check the if coil for dry joints (in the if can nearest front).
  • 2914 not storing - iv02 d405 +47r
  • 2914 noisy psu loptx sync winding is reversed!.
  • 2920t no line drive- check line driver tx pins for dry joints.
  • 2921t also alba ctv713.
  • 2971ntx see vestel 11ak19 chassis faults.
  • 3114 orion 14ebs saisho ct149x(tvs 89-90 p231)
  • 3114 dead- the ht is "pulsing" - ic401 ta8808n 64pin.
  • 3114 dead ic401 ta8808n 64pin
  • 3114 field blanking- field chip heatsink earths.
  • 3114 excessive blue - check capacitor c801.
  • 3114 stuck on channel 3 - icp401 behind chopper tx.
  • 3114 top of picture blanked- poor field heatsink earth pins
  • 3114a standby - r502 (330k.)
  • 3114at dead & stuck in standby- r502 & r503 (330k) o/c in front of the str transistor.
  • 3314sdead 2+330k.
  • 3114t dead - c128 (220uf) bulge / leaking.
  • 3463ntx no pic, increase a1's cause poor crt
  • 3463ntx 34bkb 3463ntx/4400 chassis.
  • 3463ntx excessive width and ew bowing then the set may go dead- check cl 15 for dry joints & check tl4 for short circuit, check/replace cl18 (22uf 250v) , replace the tda 8350 q field chip.
  • 3463ntx 34bkb 3463ntx/4400
  • 3472ntx dead set with the led flashing, lop transistor (s2000a) blown. Cause- replace loptx. (stock fault.)
  • 3472ntx bright white picture with flyback lines- check rl18 (33r) for open circuit also check ic tea5101b for s/c.
  • 3472ntx loptx arcing,(1352.5006)
  • 3472ntx pro4400,no picture/sound,dc4(1n4148) near loptx/scart
  • 3472ntx pro4400,no pic/sound-tp6 (bd441).
  • 3472ntx ew bowing effect on the picture - replace the tda 8350q chip.
  • 3472ntx pincushion picture t705 bd242 faulty.
  • 3472ntx service mode. Press and hold the "menu" button on the tv while turning the set on until the red led lights up release the "menu" button and press the "standby" button on the remote control. The set will switch on to either programme one or av1. It is important that a signal is present, as selection of the source channel is not available in service mode. Use the "p+" and the "p-" buttons to navigate the menus. Use the "vol+" and the "vol-" buttons to adjust the values option bytes (opx) are on the back cover label alongside the letters "op1", "op2", and "op3" control bytes. Data must be as follows, c02-96, c03-27, and c04-00 press either "tv" or "menu off" to exit and save there are two adjustments, 4:3 (suffix 4); and 16:9 (suffix 16). Both must be done to ensure correct zoom. (including 4:3 screens) hsh horizontal shift ew horizontal amp pw parabola correction cp corner parabola correction tc trapezuim correction in the case of 4:3 enter ew16 = 3f for correct zoom vertical geometry adjustments must be done in the following order: vs vertical slope va vertical amp vsh vertical shift sc vertical linearity greyscale white control wb-wg-wr osd fixed value = 3f before making any alterations make a note of values.
  • 3472ntx set dead with psu "squealing" check cp14 (10nf/1kv).
  • 4414 no tuning r642 22kr,
  • 6671 11ak19
  • Ctv100 standby/tripping d552(erd29-06)from pin8 of loptx.
  • Ctv1400 bad noise from power/relay clicking, loptx s/c
  • Ctv1400 dead- faulty loptx.
  • Ctv1400 dead ,choptr(2sd1431)+ r902 (2r2)+r919 (0r68)&q902 2sb774 + c910
  • Ctv1400 dead chopper transistor & d1431.
  • Ctv1400 dead no +12v zd401/r414(12r)c909 from chopper base 47uf.
  • Ctv1400 dead r902 (2r2)o/c +c909 +check chopper htsink isol.
  • Ctv1400 dead zd401(12v zener)r414(10r)o/c cause 47uf25v c909
  • Ctv1400 dead zd401(12vzd),r414(12r)c909(47uf)c408(2200uf25v),loptr(2sd1544)+
  • Ctv1400 dead zd401+c818+r414(10r).
  • Ctv1400 field collapse ,an5521
  • Ctv1400 field collapse hi ht 47uf25v 14r2w 12v zener.
  • Ctv1400 good pic psu noise c906 pins
  • Ctv1400 int pic/snd cracked pcb nr tuner unit.
  • Ctv1400 int pic/snd tuner drift ,q103
  • Ctv1400 low height/no snow 12v zenner+10r.
  • Ctv1400 low ht- replaceresistor r918 (0r68)
  • Ctv1400 loptx arcing high ht 154189c= hr7457 +c909 fit 100uf.
  • Ctv1400 no sound/picture high ht, c909 + bzx85c12 (zd401) +r141 (12r 2w) and the an5521 chip.
  • Ctv 2871ntx. Vestel 11ak19.
  • Ctv741 dead r802+d803+ic800+r809(270k).
  • Ctv855 dead ,line coil+loptx.
  • Dvd142(11ak46) bright white raster with flyback lines= r642 o/c (10r)
  • Ic301(tda3563),ic601(tda2006),r607(10r),c806/808(1000uf25v)
  • Idlcd26tv05hd: no backlight and no picture. Sound ok and can be intermittently
    Model/s: bush idlcd26tv05hd chassis l9 (beko) lcd tv
    Symptom: no backlight and no picture. Sound ok and can be intermittently.
    Cure/solutions: replace c512, c513 (both 1000uf/35v) and c519 (220uf/35v) in psu. Also a 1000uf/16v capacitor on the signals board on the far right-hand side, near the top.
  • Indi200 afc drift r327/r328/q307/c309.
  • Indi200 bad text(l102 tune)/ic900 ic902 c917/1917 c916/1916 c914/1914 c913/1913.
  • Ic300(pca84c640.003(ztk33)+(tda3651/tda3653b).
  • Indi200 flashover protect 100nf pins 36/41 ic300.
  • Indi200 flashover protect d001 increase c001 from 1nf to 100nf.
  • Indi200 flashover protect ic500 add 100nf 250v across c709 on crt base.
  • Indi200 fusible r1329(33r)ic1300(5w/swx)change 100nf to 4n7f c1323.
  • Indi200 no memory store on first pass r391 o/c.
  • Indi200 no osd, osd colors ic302 ic300.
  • Indi200 no remote ir detector.
  • Indi200 no store r390/r369/r370 ic302.
  • Indi200 no text headers ok c915/1915 22nf.
  • Indi200 no text page number only x901/1901(13.875mhz)/c909/c912/l900.
  • Indi200 no text scl line to ic901 round edge of pcb nr hole.

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