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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: 165
NEI
1451
Dead.
Line driver TX u/s , Q601 ( BC639 ) s/c.
14-09-04
NEI
1451
Frame collapse - blank raster.
Drys on T801.
14-09-04
NEI
1451
Height lacking & chans off tune
D001 33v zener
14-09-04
NEI
1451
Int operation
R802 blue positor pt no 28002001 ( rattles when shaken if duff) - should read approx 5k when cold
14-09-04
NEI
1451
Int tripping.
R605 ( 4.7k 1W ) high.
14-09-04
NEI
1451
Not tuning in.
Drys on pin 1 K001.
14-09-04
NEI
1451
Tripping.
T801 windings s/c.
14-09-04
NEI
1451
Uncontrolable sound.
The single green plug gos to l/h of 2 small sockets not CRT base.
14-09-04
NEI
1451TX
Dead - int to start with
LOPTr s/c; HT dropper 2R7 o/c; 2 x mains rects; dry joints R812 47R
14-09-04
NEI
1451TX
Dead - no line drive
R605 5k6 in HT feed to driver tr o/c
14-09-04
NEI
1451TX
Won't tune - other buttons do strange things
Reprog EEPROM
14-09-04
NEI
1481TX
Dead
L802 dry joints, R802 270k o/c
14-09-04
NEI
1481TX
Dead - ok on dummy load
Dry joints around D805
14-09-04
NEI
14D1X E5 series
80% pic blanked out, 10% Txt banked - OSD ok
Scl pulse dist (pin 7 IC301- unsolder to check pulse) TDA3653B faulty
14-09-04
NEI
14FRE
Blank raster when A1 advanced
Pin 8 TDA3650 sancastle pulse missing - ok at pin 17 TDA2579 timebase chip; link on top of Txt pcb dry joint
14-09-04
NEI
14NE3743
wont store chans
eeprom 24C02 - 24C04 can be used in lieu
14-09-04
NEI
1551TX
Horiz lines across pic
Dry joints -ve end of C513 on vert mounted Txt pcb
14-09-04
NEI
1601
Periodically blows chopper tr
Check RP36 33R safety res in snubber network to 26v supply - may be o/c
14-09-04
NEI
200 Indiana 200
Field short & jumps
D001 - replace with ZTK33
14-09-04
NEI
2031
No pic - sound ok
HT ok at 120v - no lop or drive - R605 5k6 4w o/c
14-09-04
NEI
2031 etc.
BUZZ ON SOUND
CHECK 22nf CERAMIC CAPS AT ONE END OF IC.
14-09-04
NEI
2031TX
Int st/by - unable to switch back on
dry joints psu (all joints resoldered!)
14-09-04
NEI
2031TX
Wont come on from st/by - ok by on/off sw
SAA1293A R/C decoder chip
14-09-04
NEI
2031TX
WONT START FROM SBY , ONLY IF PRECISE SWITCH ON FRO
DSAA1293
14-09-04
NEI
2031TXT
Int dead
Dry joints chopper tfmr
14-09-04
NEI
2041TX
Dead - C811 in SMPS burnt up 5nF6 1kv
Q800 BU508AF, R801, L802 47µH Pt no NEI055137, D802 & D803 1N4007 & TDA4601
14-09-04
NEI
2041TX
Pulling at top when playing videos
Change R560 from 220R to 100R - not marked, at back between link K100 & green delay line
14-09-04
NEI
2051TX
Dead
No volts at chopper Tr coll - dry joints feed coil
14-09-04
NEI
2051TX Indiana
Dead
Dry joints on small coil near chopper Tr marked D805 on underside of board. Was glued in
14-09-04
NEI
2131
BLANK RASTER WITH SOUND
TDA3653 FIELD OP. IC.
14-09-04
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Last SM download : JVC AX1
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