| Make | Model | Problem | Solution | Date |
| | | |
| Found: 10
|
| LG | CF25A50F | Field mod when FOPTr has blown | Fit TDA8350Q & use heatsink compound as well as the grey thermal transfer pad between the chip & the heatsink. Change C352 to 22mfd (was 47mfd) 50 volts Change C708 to 22mfd (was 47mfd) 100volts . This is located to the left of the LOPT on the 45 volts rail. Change FR359 to 22ohms half watt fuse resistor (was 10 ohms) This is also located to the left of the LOPT on the 45 volts.
rail. Add a 0.01 mfd cap on pins 8 & 9 of the frame chip & 0.1mfd between pins 7 & 8 (both 100volts) | 14-09-04 |
| LG | CF25A50F | Reverts to st/by aft 2-3 secs, HT drops to 60v | IC351 FOP chip TDA8350Q & FR350 10R fusible | 14-09-04 |
| LG | CF28C22F etc | Field collapse | Fit mod kit KITPC33J (7 parts inc) | 14-09-04 |
| LG | CI14B50F 11.1 | St/by only - no line dr | No 12v supply to line dr trfmr Tr101. Check back from pin 15 chopper trfmr - R410 0R1 o/c & dry joints chopper trfmr | 14-09-04 |
| LG | CI20E20 | Dead with STRS5707 chopper chip & bridge rect s/c | Also replace 4 x elects in psu | 14-09-04 |
| LG | CI21T24F | St/by only - red LED lit no power to psu pri | Dry joints RL108 relay | 14-09-04 |
| LG | KE14U73 | St/by only | HT present but no 8v supply to IC500 jungle chip pin 37. D850 in psu leaky | 14-09-04 |
| LG | KE14U73 Combi | Swirling lines & static pops on pic | poor earthing of the deck to the screen large VCR screening can | 14-09-04 |
| LG | LV710 | Wont tune - "SAFE" displayed | Sus EEPROM | 14-09-04 |
| LG | Various | Modifying R/C to access service modes | There is a service remote availiable but if you have a
remote which uses an SAA3010T IC , simply connect a tact switch between pins 1 & 11 to access the service mode . | 14-09-04 |