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Repair tips

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: 185
AlbaCTV3409Dead fuse ok Q801 s/cReplace Q801 BUZ77, R809 0R47 ?w fusible, R805 330k 1W14-09-04
AlbaCTV3409 11AK20SLED stays green (pic ok)Q803 BC547 st/by sw tr leaky14-09-04
AmstradCTV1409Frame jitter.R427 ( 220k ) replace with 180k14-09-04
Beovision8092No pic - no crts alightBad joints connector P2314-09-04
BPL9009KDRLines over pic & bent vertsC421 1000µ faulty - decoupler for IC201 supply pin 614-09-04
Bush20093 col spots on screen at sw offcrt faulty14-09-04
CrownCRP14 Matsui 2096Child Lock removalConnect a tact switch between pin 4 & 17 of IC1 (in r/c) . When TV is sw on via R/C & a chan is selected that has a PASS code no. (child lock) will allow access approx 1 sec after pressing the tact switch once. The pass channel will clear & pic will return. To remove child lock permanently press tact switch again a message "PASS CLEAR" will appear on screen14-09-04
CrownCTZ9009RE/W fault & width variesScan coils14-09-04
DatssuraCDR9009Rolling non-lin picR548 hi res (varies with model - 180k typical)14-09-04
DeccaD10R609Width lacking RH04 22R 2w line dr supply res hot - CH09 2200µ 10v14-09-04

HitachiC2509TDeadReplace ZD903, Q903, Q781, C906, 908, 913, 908, 905, 720, RV901. R901, 910, 760, 761, 762, 768. ZD903 split in 214-09-04
HitachiC2509T G7PSField - bottom crampC606 680mfd 16v scan coupling cap14-09-04
HitachiCL1409RNo colourR519 100R 1/2w not properly soldered to board14-09-04
HitachiCL1709Does not start up. Overvoltage protection circuit active.Check replace R951/39K R953/47K and D952 Zener.14-09-04
HitachiCL1709Does not start up. Overvoltage protection circuit active.Check replace R951/39K R953/47K and D952 Zener.14-09-04
HitachiCT1709No sigs or tuningNo VT supply - ZD002 33v zener faulty & 12k feed res o/c14-09-04
JMBC2099TX Matsui TVR180St/by onlysyscon/timer/servo IC1006 OEC0078C using the sub-panel to get it out of S/by and then corrected incorrect Hex values. (Or get preprog 24C08 from Grandata)14-09-04
Logik4090 TX90No colourD103 ( BAV20 ) connected to pins 19 &23 of decoder IC.14-09-04
Logik4090 TX90No colour with faint blue cast.C157 ( 22nf ) leaky on pin 18 of IC103.14-09-04
Logik4090 TX90No colour.C157 , C159 ( 22nf ) o/c , D103 high or dry jointed.14-09-04
Logik4090 TX90No sync.C125 ( 2.7nf ) , C129 ( 68nf )14-09-04
Logik4094 TX95Tuning - no tuning.R56 2.4k res o/c , IC 902 ( M293B1 ) on side board.14-09-04
Luxor18067099Wont start up from coldCV07 and CV12 in 24v supply14-09-04
Luxor7090bad convergence PTC , has to measure around 150 ohm. PTC number = PH891114-09-04
Luxor7090vertical lineIC 501 (TDA 3654) C575 (100uF/50V) also C577 and C57414-09-04
Matsui1091BLOWS FUSES AFTER 3-4hrsFUSE HOLDER CONTACTS LOOSE14-09-04
Matsui1091Hum bar on pic - may start aft timeChange Bridge rect diodes with BY255 even tho' measure ok14-09-04
Matsui1091offpiece of wire between pins 2 & 4 of lopt that shouldn't be there!14-09-04
Matsui1091WONT POWER-UP UNLESS LAID ON RIGHT HAND SIDEWIRE NEAR ON OFF SWITCH DRY14-09-04
Matsui1091XNo sigs & 2" field scan onlyL610 o/c (4R7 used in similar Hinari CT16)14-09-04
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