| Make | Model | Problem | Solution | Date |
| | | |
| Found: 46
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| Goldstar | CF25C22F | Width excessive with bowing | C413 10µ 250v u/s caused by C405 0µ22 low cap | 14-09-04 |
| Goldstar | CF25C22F CF28C22 | DEAD SET , RELAY CHATTERS , D401 SC | CHANGE , R308 - 33R 3W ORSO322L667 , D401 , D402 - RU4DS ODD400000AB , X501 - 156-A05B . ALSO CHECK IC301 , ZD304 . | 14-09-04 |
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| Goldstar | CF25C22F CF28C22F | Dead - no line drive - 150v HT ok | SCL & SDA missing at pins 4 & 5 IC503. Replace X01N on Nicam pcb or IC03N if that doesn't cure it | 14-09-04 |
| Goldstar | CF25C22F CF28C22F | Dead Q801 chopper tr s/c | Reduce R810 from 12k to 6k8 | 14-09-04 |
| Goldstar | CF25C22F CF28C22F | Dead with relay chattering | Change R308 to 33R 3w, D401/402 to RU4DS & X501 to pt no 156-A05B | 14-09-04 |
| Goldstar | CF25C28CF | Field collapse | Fit kit which contains TDA8350QN5 (don't use TDA8350Q) | 14-09-04 |
| Goldstar | CF25C28F | E-W Dist | Q351 KTB988Y s/c e-c & FR359 22R ?w fus res high | 14-09-04 |
| Goldstar | CF25C28F | Field collapse | IC351 TDA8350Q & mod kit KITPC58A | 14-09-04 |
| Goldstar | CF25C36 NC51B | Wont stop when in search - existing chans may be slightly off tune | IC182 5v reg producing low o/p | 14-09-04 |
| Goldstar | CF28A50 PC58A | Field - dist top edge of pic | Check electrolytics in field stage & fop chip IC351 TDA8350Q | 14-09-04 |
| Goldstar | CF28C22F | Dead - all psu volts present - lop tr hot | C405 0µ22 400v bulged & leaky (checked ok out of cct) | 14-09-04 |
| Goldstar | CF28C28F | Field collapse | Replace IC351 TDA8350CQ fop chip & check adequate heatsink compound & clip is secure | 14-09-04 |
| Goldstar | CF29C | Service Mode entering | Press MENU, VOL- and PR- buttons on the control board simutaneously, then the TV is changed from normal mode to SVC mode,
BUTTON OSD ADJ REFERENCE
6 VL-- Vert Lin
9 VS-- Vert Shift
7 VH-- Vert Hieght
8 SC-- Vert S compensation Crosshatch
1 HS-- Horiz Shift
2 EW Horiz Width
3 EP-- East-West Parabolar Crosshatch
4 EC-- East-West Corner Crosshatch
5 ET-- East-West Trapezium Crosshatch
TXT/M PL-- Peak Limit Set to PL45
INDEX GG-- White Balance Set to GG31
Revel RG-- " " " " Set to " "
UPDATE BG-- " " " " " " " "
Ref) "--" of OSD column means variable number, for example 35 , from 00 to 63 | 14-09-04 |
| Goldstar | CF29C20N | E/W & field adj problems after changing TDA8350Q | Add 220R res across b-e of Q301 | 14-09-04 |
| Goldstar | CF29C76N MC51 | Blank raster & no sound - OSD OK | IC182 5v reg near tuner | 14-09-04 |
| 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 |
| Philips | CF1 | Blank raster - no sound | No o/p from TDA2541 IF chip - C2147 leaky | 14-09-04 |
| Philips | CF1 | Blank raster & no sound. | C2147 disc type leaky , TDA2541. | 14-09-04 |
| Philips | CF1 | Brightness - low. | R3600 ( 18k ) | 14-09-04 |
| Philips | CF1 | Colour excessive with hanover bars | C2218 2µ2 low cap connected to pin 5 TDA3560/N6 | 14-09-04 |
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| Philips | CF1 | Contrast - low. | R3600 ( 18k ) | 14-09-04 |
| Philips | CF1 | Dead | C2310 1n5 prot cap across D6310 BYD33M 190v rect s/c | 14-09-04 |
| Philips | CF1 | Dead - blowing BUT11AF. | C2501 ( 22nf ) int , replace C2501 & T7560 ( BUT11AF ) | 14-09-04 |
| Philips | CF1 | Dead - LOPTr BUT11AF fails every few hours | R3503 220R dry joints - connected to collector of line dr Tr | 14-09-04 |
| Philips | CF1 | Dead - Tr7560 LOPTr s/c | Dry joints chopper tfrmr | 14-09-04 |
| Philips | CF1 | Dead. | C2310 ( 1.5nf ) goes s/c under load. | 14-09-04 |
| Philips | CF1 | Field collapse & foreign radio sound | R3583 1R o/c | 14-09-04 |
| Philips | CF1 | Field reduced with bottom cramping | C2403 4µ7 feedback cap | 14-09-04 |