| Make | Model | Problem | Solution | Date |
| | | |
| Found: 58
|
| Decca | D28NEE5 | Excess width & won't come on from st/by | R814 75k, TR801, & ZD813 | 14-09-04 |
| Decca | D28NEE5 | Int dead | R814 75k | 14-09-04 |
| Decca | E series D28NEE5 | Audio gives 3 pops when turned off from st/by Attempting to start from residual charge | Remove R803 & 804 47k from pcb & connect together in R804 posn. Fit wire on copper side of pcb (?) - Official mod from Decca but not explained very well. | 14-09-04 |
| Decca | E series D28NEE5 | Brightness fluctuates rapidly with poss fb lines | C527 100n next to IC501 faulty | 14-09-04 |
| Decca | E series D28NEE5 | Dead when cold - ok when heated | 5v rail low - IC804 5v reg | 14-09-04 |
| Decca | E series D28NEE5 | E/W poor & Width excessive after FOP repair | ZD409 33v zener leaky - not shown on cct diag - pin 11 IC401 to earth | 14-09-04 |
| Decca | E series D28NEE5 | Excess width/lack of height - int cuts out when heated | HT high at 177v (150v), R814 75k in HT pot divider | 14-09-04 |
| Decca | E series D28NEE5 | Field collapse | R422 1R2 fusible o/c off pin 6 LOPTx | 14-09-04 |
| Decca | E series D28NEE5 | Field foldover with lines at top | R437 1R2 o/c | 14-09-04 |
| Decca | E series D28NEE5 | | | 14-09-04 |
|
|
| JVC | 7255EE-A | Won't come out of standby. | PS, near AN5900 change 2caps 220uF 3caps 10uF and 1cap 47uF. | 14-09-04 |
| JVC | 7255EE-A | Won't come out of standby. | PS, near AN5900 change 2caps 220uF 3caps 10uF and 1cap 47uF. | 14-09-04 |
| Mitsubishi | CT21AV1B EE3 | Dead - psu fault | Q952 s/c D957 s/c Z953 o/c - mod kit 8VREG-KIT available if Q952 u/s | 14-09-04 |
| Mitsubishi | CT21AV1B EE3 | Dead with green LED lit | PSU running but no line drive - mod = C702 from 1000mfd to 10mfd 25v, check C955 is 3300mfd 16v. Replace R702, 213, 214 with 1k 1/4w | 14-09-04 |
| Mitsubishi | CT21M5 EE4 | Dead - blowing SOC2000 cct prot | Microprocessor s/c +5v pin to chassis | 14-09-04 |
| Mitsubishi | CT21M5 EE4 | No Txt or auto tune/store | eset options in eeprom from service mode | 14-09-04 |
| Mitsubishi | CT21M5BT EE4 | Int loss of pic - sound still present | Invisible dry joint IC650 TEA5101B RGB o/p chip on crt base | 14-09-04 |
| Mitsubishi | CT25AV1 EE3 | Dead - LOPTr leaky | TEA2031A E/W corr chip s/c | 14-09-04 |
| Mitsubishi | CT25AV1 EE3 | Dead - no line drive | Q501 JC501-R faulty - 2SC1815 used as replacement | 14-09-04 |
| Mitsubishi | CT25AV1BD EE3 | Blank raster with no sound or osd | No 8v - fit kit 8vREG-KIT from SEME | 14-09-04 |
| Mitsubishi | CT25AV1BD EE3 | Dead - Green LED lit | change C702 to 10uf & C955 to 3300uf also change R702 R213 & R214 from 220R to 1k & reset eeprom | 14-09-04 |
| Mitsubishi | CT25AV1BD EE3 | Dead - LOPTr s/c | TEA2031A E/W chip IC551 faulty, R510 100R 2w overheating due to L501 6800uH shorted turns | 14-09-04 |
| Mitsubishi | CT25AV1BDS EE3 | Int blows LOPTr at sw on from cold & lack of height/int contrast from cold | C956 6.3V 470uF in 5V supply. | 14-09-04 |
| Mitsubishi | CT25AV1BS EE3 | Blank raster with sound | Vid signal enters pin 42 IC201 but no o/ps - eventually found due to no 12v crt base - R514 0R82 1/2w safety res o/c | 14-09-04 |
| Mitsubishi | CT25AV1BS EE3 | Dead - off with burning smell - green LED perm lit | CSD3 470n 400v o/c - looks stressed cause of trouble. Also R510 100R 1/2w o/c - also replaced TEA2031A | 14-09-04 |
| Mitsubishi | CT25AV1BS EE3 | Field collapse | TDA8171 & R516 0R82 1/2w o/c | 14-09-04 |
| Mitsubishi | CT25AV1BS EE3 | No E/W or width control (after CSD3 470n replaced) | L504 burnt & shorted windings - rewound with 493 turns - also check TDA2013A E/W chip | 14-09-04 |
| Mitsubishi | CT25AVBDS EE3 | Int sw on/ off - G LED lights but no pic/sound (no line drive) | C956 470uF 6.3v in secondary power supply circuit, close to IC951 | 14-09-04 |
| Mitsubishi | CT25M5BT EE4 | Field collapse | TEA2031A (IC551) & supply decoupler R516 0R82 safety resistor. | 14-09-04 |
| Mitsubishi | CT25M5BT EE4 | Green LED only - prev int off - HT present | No line dr from IC201, no micro activity, replace EEPROM 24C08 & set up | 14-09-04 |