| Make | Model | Problem | Solution | Date |
| | | |
| Found: 15
|
| Alba | CTV6682 11AK12 | green flyback lines can be seen on the picture, otherwise is Okish | no green output from TDA8362A(2Y), the IC is u/s - caused by intermittently arcing LOPTx (HR6465). | 14-09-04 |
| Amstrad | 3121N 11AK12 | St/by only - psu o/ps present except 12 & 8v | IC301 (CTV352/V1.4) and IC302 (ST24C02AB1). | 14-09-04 |
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| Amstrad | CTV3121NF 11AK12 | No response from R/C although R/C is outputting a signal | Was still faulty handset - dry joints IC giving wrong output codes | 14-09-04 |
| Bush | 11AK12 | Field collapse | R818 22K in the 33V supply (yes the 33V supply). After changing this you will probably have a blank raster so change C707 100MFD in the field flyback circuit. | 14-09-04 |
| Bush | 11AK12-9 | Width & E/W inop | R661 100k | 14-09-04 |
| Bush | 2867NTX (11AK12) | Dead - chopper tfmr failure | Replace T2.5A fuse, BUZ90 (used 2SK1643), R801 2R2 5W cement resistor, plus a 0.5R 1W metal oxide had gone o/cThe chopper transformer is obtained from CPC under part number AB4040905110 for ?5.08 + VAT and comes with a small mod kit (details below) . Transformer was a Teleson , now made by Eldor. R812 - change to 47R metal oxide, C809 - change to 220nF 63V MKT | 14-09-04 |
| Bush | 2867NTX 11AK12 | Dead with 150v present at LOPTr coll | No line dr - 12v supply low as D812 BYV27 leaky | 14-09-04 |
| Bush | 2867NTX 11AK12 | Dead with chopper trfmr s/c | Replacement trfmr comes as a kit pt no 30004541- also replace R812 47R 1w metal oxide & C809 220nF 63v | 14-09-04 |
| Bush | 2867NTX 11AK12 | Fluttery pic on certain scenes (after sm Tx replaced) | C608 10µ 350v | 14-09-04 |
| Bush | 2868NTX 11AK12 | Child Lock removal | Dis pin 5 of EEPROM, sw set on, go to menu & set up any new pincode you like (do not forget to memorise it). While set is still on, re-connect pin 5 of EEPROM & press STORE on R/C. Now sw set off, resolder back the EEPROM and new pin is the one what you just entered. | 14-09-04 |
| Bush | 2876NTX 11AK12-9 | No sound | Dry joints P1303 | 14-09-04 |
| Fidelity | CTV3121NF 11AK12 | Faintly tripping | D22 s/c (5v supply tfrom chopper trfrmr) & chopper transformer faulty | 14-09-04 |
| Fujisound | GP2590 11AK12-9 | Field collapse, no sound/tuning | R818 22K 33v feed o/c | 14-09-04 |
| Protech | 6392 11AK12-9 | Field collapse | R818 22K o/c | 14-09-04 |
| Protech | 7295 11AK12 | Field collapse | R818 22k 1w in 33v line o/c | 14-09-04 |