| Make | Model | Problem | Solution | Date |
| | | |
| Found: 20
|
| Beko | 17125T | Dead - LOPTr s/c - used S2055N | C140 .022µ 400v Was o/c | 14-09-04 |
| Beko | 17125T | Severe E-W bowing | lopt 11.1,110 CPC TFHR8007 | 14-09-04 |
|
|
| Beko | NR17125T | Blows LOPTr after a few days | Check C140 22nF for o/c - upgrade to 1000vw | 14-09-04 |
| Decca | 171 | Line collapse. | Drys on Lin coil. | 14-09-04 |
| Decca | 171 | Line collapse. | Drys on Lin coil. | 14-09-04 |
| Decca | 171 | No sound. | Drys on sound IC. | 14-09-04 |
| Decca | 171 | No sound. | Drys on sound IC. | 14-09-04 |
| Decca | 171 | No Tuning - will sweep. | R004 ( 4.7R ) side of tuner. | 14-09-04 |
| Hitachi | C1714T | Pic size decreases with brightness | HT low - CNX82A opto coupler IC901 s/c pri | 14-09-04 |
| Hitachi | C1714T | St/by only | Dis supply to fop chip to check if this is cause - if then ok apart from field collapse, check fop chip TA8427k & D702 | 14-09-04 |
| Hitachi | C1714T etc | Field o/p chip repeatedly fails | Replace ic 601. get two 33v Zener diodes and connect them in series ( BZX79C33V) connect the anode to pin 1 of ic601 cathode to pin 2 of ic 601. Fit 10nF 50v capacitor across the frame scan plug E701 on print side of the plug. If the ic still blows after this mod. a new CRT is required. The tube is flashing over. This applies to all sizes of 14T/TE range of sets | 14-09-04 |
| Hitachi | C1714TE (A15 chassis) | No Txt & delay in returning to st/by | Check 5v supply pin 44 micro - if low ZD4001 5v1 zener is sus | 14-09-04 |
| Hitachi | C1714TE (A15 chassis) | To acess service menu | press the following buttons on the remote:
4 4 STATUS MUTE TV in that order and fairly quickly. The service menu is displayed.
Check that BYTE 1 = 7D; BYTE 2 = 20 These are two hex digits - to exit menu press st/by | 14-09-04 |
| Hitachi | C1719T | Dead | C906 4µ7 250v, ZD903 P6KE130 & check R902/3 82k & C908 33µ | 14-09-04 |
| Schneider | STV 171 | repeatedly S/C of BU508 AF | line drive Q508(2SC1573) int S/C, replace with BF759. Change R 608 (1Kohm) to 2K2 /2 W | 14-09-04 |
| Sony | BE-4A KVM2171U | frame collapse | R622 (HT feed) o/c, R814 0.47R safety (frame feed) o/c | 14-09-04 |
| Sony | BE-4A KVM2171U | no text, excessive width, poor grey scale | NVM corruption. Replace IC002 new type ST24C02FB6 (875937032). Change C0255 from 47uF to 1000uF, add 5.6V zener from pin 8 IC002 (cathode) to earth, tighten earth spring around CRT in the shape of U | 14-09-04 |
| Sony | BE4 KVM2171U | Dead after half an hour | STRS5706 IC601 | 14-09-04 |
| Sony | BE4A KVM2171U | Field collapse | R814 0R47 o/c | 14-09-04 |
| Sony | BE4A KVM2171U | Luma low, poor sync, field up at bottom & E/W bowing | OK when heated - C627 100uF 10V in the 5 volt rail, high ESR, Off pin 8 of IC603 | 14-09-04 |