| Make | Model | Problem | Solution | Date |
| | | |
| Found: 1852
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| Akai | CT-T21N32S | I have an Akai CT-T21N32S which will not fire up, the red LED is illuminated on the front but nothing else happens, I have tested dozens of components but to no avail, the block diagram in the service manual I have is unreadable which is quite upsetting a | cure: replace eeprom IC602 ref
| 23-06-05 |
| Akai | CT2107MS (Onwa) | Int off with blob in centre of screen | Check for hairline cracks around chopper tfmr pins | 14-09-04 |
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| Akai | CT2142VNT | Poor pic with fbck lines and curious col | IC301 pin 12 supply only 7v5 (9v1). R424 (0R68) hi res | 14-09-04 |
| Akai | CT2159 Onwa | Field faulty - int lines at top etc | C417 220mfd 16v, C423 2200mfd 25v, C435 470mfd 16v | 14-09-04 |
| Akai | CT2159UT Onwa | No start up | C910 & C912 47µ | 14-09-04 |
| Akai | CT2179N-UK | Line osc too fast | C416 220pf 1kv dry joint, R412 10k ?w o/c | 14-09-04 |
| Akai | CT2179NUK | Whistles for 1sec then dead | C807 47uF 25v | 14-09-04 |
| Akai | CT2579N | Steady, Oversized pic | C513 scan corr cap dry joint | 14-09-04 |
| Akai | CT2862UNT | Dead - PSU components burnt | STRS6309, C925 150uF 200V blown, R920 39k, R904 47R, R914 47R, R915 82k, R916 120R all burnt, Q902 2SA1015 s/c -also replace IC902 TLP721 & IC903 SE140N to be safe sus caused by arcing on/off mains switch | 14-09-04 |
| Akai | CT2862UNT | Field collapse | D406 BA157 s/c, R422 0R68 o/c, TA8427K FOP chip IC401 & C401 100µ 35v o/c | 14-09-04 |
| Akai | CT2867UNT | Dead with chopper V025 & LOPTr VK50 s/c | check C025/026/027/028 in the psu primary, CK57 and RK56 & CK51 - VO25 (S2000N) and VK50 (BUF450) replaced - no other fault found! | 14-09-04 |
| Akai | CT2870N | Dead tripping | LOPT | 14-09-04 |
| Akai | CT2870N | Low buzzing noisy sound | C242 0.47µ 63v | 14-09-04 |
| Akai | SN71B6 | Blank raster at sw on sound ok - pic slowly comes | CRT low emission - reactivated | 14-09-04 |
| Akai | SN71B6 | No raster, sound ok - if A1 advanced strange rainbow effect | Replace TDA8172 IC NS10 low volts pin 2 & RK53 3R3 | 14-09-04 |
| Akai | SN71B6 TV2851 | No pic - sound/EHT present - Field blanked | RK53 3R fusible pin 3 LOPTx | 14-09-04 |
| Akai | TV2851TN | St/by only - when sw on no leds lit | RGB IC TEA5101B on crt base s/c | 14-09-04 |
| Akai | TV2851TNUK | Rainbow effect | No -12v to FOP chip - CS03 leaky & RK53 overheating | 14-09-04 |
| Akura | CX35 Nicam | No sound | Replace Eeprom | 14-09-04 |
| Alba | CTV4855 (Onwa) | Low sound | C202 220µ decoupling cap AND R421 0R68 in line stage hi res (1R5) | 14-09-04 |
| Alba | CTV4855 Onwa | No sound/pic - blank raster | 5v line low at 3.6v - Q619 o/c | 14-09-04 |
| Alba | CTV4881NTX | Blank raster & no sound | 12v supply to tuner missing - R422 10R o/c; ZD402 12v zener s/c | 14-09-04 |
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| Alba | CTV4881NTX | Pic size & HT varies with brill | C909 47µ, C910 10µ, Q902 2SB774 leaky (BC212 does) | 14-09-04 |
| Alba | CTV840 Onwa | Black vert bars with background pic | C420 22µ 160v o/c | 14-09-04 |
| Alba | CTV840 Onwa | No tuning although the set displayed tuning drive | R125 ( 47R ) was opencircuit because C127 ( 470uF 16V ) was short circuit .These components form a filter in the 9.25V supply | 14-09-04 |
| Alba | CTV841 Onwa | St/by only - relay chatters when sw held in | D401 | 14-09-04 |
| Alba | CTV841 Onwa | No pic - appears bright when A1 advanced | R430 180k in beam lim o/c | 14-09-04 |
| Alba | Onwa CTV701 | No sound/pic just pattern on screen | Video reaching Txt pcb but not leaving it. 5v supply missing - check HT smoothing cap 100µ 160v | 14-09-04 |
| Alba | Ssangyong ETC. C | DEAD ZD401 12v ZENER SC R414 12R 2W OC LOP TR SC | CHECK HT SHOULD BE 114v CHECK ALL POWER SUPPLY CAPACITORS , ZENERS AND SOLDERING | 14-09-04 |
| Amstrad | 3021N | Dead | Q1 BUZ90A s/c, F01 2A o/c, R1 270k 1w o/c, R5 680k also replaced | 14-09-04 |