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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: 39
AmstradCTV3121NF 11AK12No response from R/C although R/C is outputting a signalWas still faulty handset - dry joints IC giving wrong output codes14-09-04
AmstradWSTV7328NF 11AK19Narrow with E-W bowingR629 10R o/c - check for dry joints on caps14-09-04

FidelityCTV3121NF 11AK12Faintly trippingD22 s/c (5v supply tfrom chopper trfrmr) & chopper transformer faulty14-09-04
Goodmans2575 F11Dead apart from whine from psuDry joint C134 in LOP & s/c LOP Tr S2055N14-09-04
Goodmans3375 F11Corrugated verts & white dots on screen100 uF 25 volt next to regulator I.C. and 100 uF 250 volt on HT to line.14-09-04
Goodmans3375 F11Corrugated verts & white dots on screen100µF 25v next to reg & 100µF 250v on HT to line.14-09-04
Goodmans3375 F11E/W & widthL20 s/c pt no 88700503139 between scan coils & chassis - measured 0R6 on esr meter (infinite on 'Serv' coil)14-09-04
GoodmansF11Blank raster IntermittentlyD44 leaky BA157 replace with 1N400714-09-04
GoodmansF11Dark pic - no B & weak GR26-29 on crt base 68k 1/2w hi res14-09-04
GoodmansF11deaddry joints link 13 on main pcb14-09-04
GoodmansF11Dead - burn up by C134 12nfTr20 lop tr s/c S2055AF and repair print14-09-04
GoodmansF11Dead - fuse blownTr15 S2000AF s/c in psu, Tr20 S2055AF leaky in LOP, C134 tuning cap dry joints - made up of 2 components in parallel - 1 on print side14-09-04
GoodmansF11Dead - fuse, rects & IC14 blownC102 100µ 25v in PSU - also replace IC14, D31-34, TR15 & C10314-09-04
GoodmansF11Dead with faint ticking from psuR164 100R 5w o/c in psu14-09-04
GoodmansF11Dead with LOPTr s/c at sw onC134 10n or 12n 1.5kv14-09-04
GoodmansF11INT BRIGHTNESS VARYINGCHECK A1 SUPPLY , POSS LOPT14-09-04
GoodmansF11INT BRIGHTNESS VARYINGCHECK A1 SUPPLY , POSS LOPT14-09-04
GoodmansF11Int click on sound with line on picC132 2200µ dry joint in FOP stage14-09-04
GoodmansF11Int cuts outDry joints, SMPS Tx pin 114-09-04
GoodmansF11Int dead with whineCheck/change IC14 TDA4601; C102 100µ; C103 100µ14-09-04
GoodmansF11INT START UPCHANGE R19 FROM 1k2 TO 4k7 ( LOCATION IC1 PIN 33 ACROSS D9 )14-09-04
GoodmansF11Int start up at sw onMicro time constant too fast - change R19 pin 33 IC1 from 1k2 to 4k714-09-04

GoodmansF11Line tearing with dots at sw on - clears when heatedC123 1000µ 16v in psu14-09-04
GoodmansF11LOOKS LIKE ONE COLOUR OVERDRIVENCHECK R26 / 28 / 29 ON CRT BASE. 68K 0.5W. NORMAL VOLTS AT RGB PINS OF TDA8361A / TDA 8362A IS ABOUT 2.5v14-09-04
GoodmansF11PSU trips at sw on from coldC102 100µ 25v in PSU14-09-04
GoodmansF11REPLACING NICAM BOARD CONTAINING SAA7280 WITH SAARemove link J103 & fir 22R 12V supply to Nicam & fit ( 100uF ) 16V cap across CRT base plug "+" to pin 1 "-" to pin 614-09-04
GoodmansF11Rope effect 3" from LHSReplace line drive TR14-09-04
GoodmansF11st/by onlyR170 safety res o/c - IC8 TDA1521 aud o/p s/c14-09-04
GoodmansF11 2875Dead stuck in st/byR170 O/C safety resistor from secondary off chopper transformer due to IC8 TDA1521 audio output S/C.14-09-04
GoodmansF11 2875Dead with TR15 S2000N S/CReplace S2000N and C102 100ufd which was down to 20ufd14-09-04
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