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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

MakeModelProblemSolutionDate
Found: 438
SamsungCI5070AN US60ADark picD503 1N4003 diode hi res - check o/p from 12v reg IC802 - it may be low confirming faulty part14-09-04
SamsungCI5070AN US60ADead with whistleAll HT supplies appear correct but only 241v across mains rect as it was faulty14-09-04

SamsungCI5070AN US60AInt loss of sound & blank rasterD801 or 2 1N4003 12v reg supply diodes go hi res.14-09-04
SamsungCI5079TDead - appears to be caused by high HT2 x 100µ 20v HT smoothing caps bulging, R2K overvolt prot diode s/c, also replace SMR40200C chopper IC & HIS0169B hybrid chip & check audio o/p IC14-09-04
SamsungCI5079TDead - LOPTr 2SD5072 Q401 failedReplace the following: ZD801, IC801, HC801, F801, L803, C803, C851, C852, Q401 pt nos can be found in TV mag Jul0114-09-04
SamsungCI5079TFading picDry joints crt base & RGB o/p IC faulty14-09-04
SamsungCI5079TField - top half missingFOP chip TDA835614-09-04
SamsungCI5079TInt widthSMR40200 IC in psu14-09-04
SamsungCI5079T SCT11DBlue screen with no sound - menus partly off top of screenEeprom settings lost - with SAA5290ZP-026 set option byte to 5D, with-042 suffix Eeprom set option byte to CA; still no signals present - pin 1 of micro s/c to chassis - new micro reqd14-09-04
SamsungCI5079ZDeadReplace IC801, L803, ZD80114-09-04
SamsungCI5079ZDead - chopper Tr s/c, avalanche diode s/cCaused by HIS0169 hybrid device - replace with HIS0169C modified type to prevent HT rising in st/by - also change C852 1n8 ceramic cap with a polyester type you can purchase 10 of them from ARD for 25p + vat! The order code is 160-00458. Check HT in st/by - should be 140v but could be much higher if any of the former are faulty14-09-04
SamsungCI5079ZDead - F801 3.15A fuse o/cSMR40200 s/c pins 3-4, DZ801 R2KN s/c, HC801 HIS0169B also reqs replacement14-09-04
SamsungCI5079ZPSU kit when blow up/LOPTr goes s/cBoth HIS0169C, SMR40200C;R2KN 0403-000691; KSD5072YD 0502-000295;C852 2301-000111; 2n2 800v Cap ;2303-000163;Coil AA27-90001G14-09-04
SamsungCI5102ZNO SIGNALS , TUNE VOLTS VARY BUT NO STATIONSCHECK RQ04 , 05 , DZ824 33v 05 10k 0.25W14-09-04
SamsungCI514ZDEAD RELAY CLICKINGC411 100pF 2kv SC14-09-04
SamsungCI515ZAInt blowing fuse.Replace 800mA with a 1AT anti-surge type.14-09-04
SamsungCI517Int col - high HTTA7698AP chip overheats due to hi HT 160v instead of 125v STR30125 power chip faulty14-09-04
SamsungCI517ZBlank screen , if AV selected , scart signals okEQ101 2SC815 sc14-09-04
SamsungCI517ZStuck in AV modeIF strip perm muted as EQ101 2SC815 Tr leaky - used 2SC1815 in lieu14-09-04
SamsungCI517ZFLow brightnessC519 10n 2kv A1 decoupler on crt base14-09-04
SamsungCI5312Dead, sqeals when sw out of st/byC807 47µ 25v & C813 1µ 50v hi esr14-09-04
SamsungCI5312WSt/by only - chopper tfmr squeals when not in st/byC807 47µ 25v & C813 1µ 50v hi esr14-09-04

SamsungCI5322FIELD COLLAPSER412 OC ALSO REPLACE D401 AND C307 ( 100uF )14-09-04
SamsungCI5322Field collapseR412 o/c & check D401 ERB4304 also C307 100µ 50v14-09-04
SamsungCI5322TDeadR801 5R6 7w o/c; C816 2200pf 1kv cracked & leaky14-09-04
SamsungCI5322TIF REPLACING WIDTH COIL GIVES TUNING/IF FAULT CHEC21" 32449-412-650 14" 32449-412-60314-09-04
SamsungCI5322TNo sound/pic - raster present when A1 advanced5v supply low from IC803 5v reg - reg s/c14-09-04
SamsungCI5322TSt/by led comes on briefly at sw on then deadC817 100µ low cap14-09-04
SamsungCI5322XTDead - PSU overworking & HT excessive at 250vCorrect HT 125v when C852 470µ 16v replaced but R826 1R o/c & LOPTr 2SD1650 s/c also14-09-04
SamsungCI533whistling, no line outputC412 (482212613155) s/c14-09-04
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