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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
Make
Model
Problem
Solution
Date
Found: 626
Bush
2568NTX
Int line shift with foldover - LOPTr damaged
R451 dry joints
14-09-04
Bush
2568NTX
Lack of width & E-W
R629 2R7 o/c & dry joints in area
14-09-04
Bush
2571NTX
St/by only
R826 470k ?w o/c in psu sec
14-09-04
Bush
2571NTX 11AK19
Blank raster, no sound, ok thro' SCART & OSD OK
IC807 7805 regulator,supply was down to 2.5V
14-09-04
Bush
2571NTX 11AK19
Bright green pic with fb lines
TDA108JF on crt base
14-09-04
Bush
2571NTX 11AK19
Field collapse
Check 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/c
14-09-04
Bush
2571NTX 11AK19
No pic, sound /text / menu and on screen graphics all work ok
Q500 and Q504 in metal can burnt out. No reason found
14-09-04
Bush
2571NTX 11AK19
St/by only with psu ticking - HT about 50% of normal
Replace R866 and R867 (0.33 ohms) psu secondary LT supplies
14-09-04
Bush
2571NTX 11AK19
Tripping psu
IC301 TDA6108JF(RGB chip) & R914 (1R) o/c both on CRT base & check LOPTr
14-09-04
Bush
2571NTX 11AK19E3
Narrow pic with no E-W corr adj
R629 safety res 2R7 1/2w feeding BUK444 o/c - C630 dry joint caused it
14-09-04
Bush
2620
Flashes randomly appear across screen
VR101 AGC preset loose conns
14-09-04
Bush
2620
RANDOM FLASHES ON SCREEN
AGC PRESET INT OC
14-09-04
Bush
2714
Dead with 2.5A mains fuse blown
Tr801 BU508A s/c, R801 2R2 5w o/c, R809 270k o/c, IC801 TDA4601 & therm TH802 CHS pt no 12001GT
14-09-04
Bush
2714
Stuck in st/by
R603 3k9 5w HT feed to LOP o/c
14-09-04
Bush
2714
Stuck in StBy - Psu ok
R603 3k9 5W oc ( line driver feed )
14-09-04
Bush
2720
BRIGHTNESS CONTROL NOT WORKING 2 LOW HEIGHT 3 BR
TR901 SC ON TUBE BASE 2 D2801 33v ZENER SC 3 R901 ON TUBE BASE OC
14-09-04
Bush
2720
Lack of height
D801 ( 33V ) s/c
14-09-04
Bush
2720
Lack of width & corrugated verticals
HT smoothing cap C827 47µ 250v
14-09-04
Bush
2720
No brightness control - OSD works ok
Tr901 BC558 on crt base
14-09-04
Bush
2720 11AK03
Uncontrollable brightness & flyback lines.
R901 ( 220 ) on tube base o/c.
14-09-04
Bush
2721
Lack of height
D2801 33v zener s/c
14-09-04
Bush
2721
line pulling/tearing/lack of width
C827 47µ 160v
14-09-04
Bush
2722
Uncontrollable brightness with fback lines
R901 220R on crt base o/c
14-09-04
Bush
2768NTXSIL
St/by only - LOPTr blown
Also replace line dr tr 2SC1573
14-09-04
Bush
2814T
Dead - no EHT or htrs
R603 3k9 5w HT feed to LOP o/c
14-09-04
Bush
2814T
NO EHT
R603 3k9 5w OC
14-09-04
Bush
2820T
Line pulling, tearing or bent verts - lack of width
C827 47µ 160v HT res cap
14-09-04
Bush
2850/2855
Service Mode access
Press Red & blue buttons together then P- & V+ together within 5 secs
14-09-04
Bush
2850NTX
Dead
Dry joints scan coil plug & TEA5101 fop chip & TEA5101 on crt base
14-09-04
Bush
2850NTX
No pic with burning smell
burn up on red wire of scan coil plug - wired direct to pcb
14-09-04
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