| Make | Model | Problem | Solution | Date |
| | | |
| Found: 228
|
| Alba | 4859 11AK19 | No line drive at sw on (150v HT to LOPTr) | Dis'd D814/815 (+14 & -14v audio o/p ic supply diodes). Replacing TDA2615 aud o/p chip resulted in bright white raster & flickering LED; R914 47R 200v feed to IC901 TDA6107Q on crt base o/c & IC s/c | 14-09-04 |
| Alba | CTV3409 11AK20S | LED stays green (pic ok) | Q803 BC547 st/by sw tr leaky | 14-09-04 |
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| Alba | CTV4808 11AK19 | Comes on in st/by then if button pressed blinks pale green | Check R914 47R safety res & TDA6108JK | 14-09-04 |
| Alba | CTV4808 11AK19E3 | No tuning but tuning bar moves | Q501 BF240 - BC548C works in this position | 14-09-04 |
| Alba | CTV4851 11AK19 | Dead - no LED display | R806 22k o/c | 14-09-04 |
| Alba | CTV4851 11AK19B-1 | Dead with 0nly 300v pri HT | Opto coupler faulty - though more faults may be present (esp if it went off in a thunderstorm) | 14-09-04 |
| Alba | CTV4859 11AK10-17 | Dead | Q801 (BUZ77B), R809 (0.47R), IC801 (TDA4605-3), C817 (1µF 63v), R805 (330k 0.5w), D808 (BA159). | 14-09-04 |
| 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 |
| 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 |
| Amstrad | WSTV7328NF 11AK19 | Narrow with E-W bowing | R629 10R o/c - check for dry joints on caps | 14-09-04 |
| Beko | 11AK08 | Dead aft thunderstorm | 1N4148 diode measured about 460KOhms both ways | 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 | 11AK19 | No start up | No line drive - check coil in emitter of LOPTr for burn up (not shown on cct) | 14-09-04 |
| Bush | 11AK19 | Service Mode access | Enter install mode then press "4, 7, 2, 5" | 14-09-04 |
| Bush | 11AK19-B1 | Field collapse | After trying new chip TDA8351 which made no diff, fault traced to D606 BA157 which checked ok out of cct | 14-09-04 |
| Bush | 1433 11AK20 | Blank screen with 3 lines top lh of screen then shuts down (Anti-theft password set) | Enter correct password! | 14-09-04 |
| Bush | 1433 11AK20 | Bright B pic with FB lines | Q907 BF423 leaky or equiv in other col | 14-09-04 |
| Bush | 1433 11AK20 | Dead | R802 75k 2w o/c or R809 0R47 o/c | 14-09-04 |
| Bush | 1433 11AK20 | Dead - internal fuse intact | power surge blown bridge rects - replace also safety res 2R2 5w | 14-09-04 |
| Bush | 1433 11AK20 | Int dead or reverting to st/by | Dry joints IC802 reg & IC401 jungle chip (under IF shielding plate) | 14-09-04 |
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| Bush | 1433 11AK20 | LH side pic purple, RH side green | IC402 STV2180A faulty | 14-09-04 |
| Bush | 1433 11AK20 | No pic - sound ok | Loptx arcing with C615 - LOPTx faulty | 14-09-04 |
| Bush | 1433 11AK20 | No pic/sound - HT ok | D604 BA157 LOPTx sec s/c | 14-09-04 |
| Bush | 1433 11AK20 | St/by only | No clock/data between IC502 EEPROM & Micro replace EEPROM pt no ALBA3621624020 | 14-09-04 |
| Bush | 1433 11AK20 | Watery/rolling pic - may be int | C407 47nF 50v vid coupling cap to IC401 pin 13 leaky | 14-09-04 |
| Bush | 1433 11AK20D2 | Dead | 2R2 5w & 0R33 resistors off chopper trfmr blows at sw on - C814 220pF 1kv in psu pri s/c | 14-09-04 |
| Bush | 1433 11AK20M-3 | Trips at sw on | D604 200v rect s/c - fitted RGP15 in lieu | 14-09-04 |
| Bush | 1433 11AK20S | LED stays green (pic ok) | Q803 BC547 st/by sw tr leaky | 14-09-04 |