Make | Model | Problem | Solution | Date |
| | | |
Found: 65
|
Amstrad | CTV250 | Bright raster with fb lines | TEA5101A driver on crt base failed & feed res | 14-09-04 |
Amstrad | CTV250 | dim red raster | TDA3301B decoder chip u/s | 14-09-04 |
Amstrad | CTV250 | int off | dry joints chopper tfmr | 14-09-04 |
Amstrad | CTV250 | No contrast | Tr102 BC558 leaky c-e | 14-09-04 |
Amstrad | CTV250 | No secondary supplies | Replaced C418 100µ 25v, C489 100µ 40v, C425 1µ 400v, positor PTC401, R422 5R6 1w o/c, and chopper tfmr | 14-09-04 |
Amstrad | CTV250/280 | E/W int | dry joints CH351 choke feeding pin 5 IC351 TDA8145 | 14-09-04 |
B & O | 2500 LX2802 | Int reverts to st/by briefly with blank raster on return | Tr6 - use BC338-40 as replacement - checks ok out of cct | 14-09-04 |
B & O | L2500 | Servicing the L2500 | Picture on cover & layout. | 14-09-04 |
B & O | L2500 L | Stuck in standby. | BU508 s/c. | 14-09-04 |
B & O | L2502 | No sound | IC101 pin 7 (5.9v) = 0v C111 100µ 25v s/c | 14-09-04 |
|
B & O | L2502 (3866) | Dead & squealing | Resolder a mass of dry joints on the PSU & line output panel then replace the short circuit line output transistor (TR11) S2000A3. | 14-09-04 |
B & O | L2502 3866 | Int starting , chopper drive present. If pin 3 IC1 , LM358 low check R14 & R16 , 220k. | If still no go , check TR20 on Tuner IF PCB . | 14-09-04 |
B & O | L2505 | st/by only after short squeal at sw on | lop tr TR11 S2000A3 s/c and resolder dry joints esp at C34 6n8 | 14-09-04 |
B & O | LX2500 37XX | NO STBY LED SET STUCK IN STBY | C14 470uF 16v OC | 14-09-04 |
B & O | LX2502 | Field distorted | Replaced C44, C45, C46, C49, C26, and C54 plus FOP chip TDA2170 that orig had dry joints | 14-09-04 |
B&O | L2500 | psu shutdown | line dr tr 4TR15 BC328-25 o/c b-c | 14-09-04 |
Contec | KT8250 | dead - chan display and relay click present | R504 330k in psu o/c | 14-09-04 |
Grundig | CUC2500 | Sometimes switches to St-by. Eventually does not startup at all. | Replace TDA3640 chip | 14-09-04 |
Hitachi | C2508 | Int dead & makes screeching sound when it does | Mains smoothing cap 150µ 400v low cap | 14-09-04 |
Hitachi | C2508 | Tuner drift on upper bands | ZD101 33v stab | 14-09-04 |
Hitachi | C2508T | Long time to come on | Mains smoothing cap 150µ 400v virtually o/c | 14-09-04 |
Hitachi | C2508T | Unstable pic until heated | C922 faulty | 14-09-04 |
Hitachi | C2509T | Dead | Replace ZD903, Q903, Q781, C906, 908, 913, 908, 905, 720, RV901. R901, 910, 760, 761, 762, 768.
ZD903 split in 2 | 14-09-04 |
Hitachi | C2509T G7PS | Field - bottom cramp | C606 680mfd 16v scan coupling cap | 14-09-04 |
Hitachi | CPT2250 J | No startup. | R712. | 14-09-04 |
Hitachi | CPT2508 | Dead | Q901,IC901,R901,ZD901 4v7,D904,R913,C928 and C919. Also there was blown print between D904 and ZD901. | 14-09-04 |
Hitachi | CPT2508 | Dead - Field coupling cap C610 100µ 25v exploded | Low res across 152v line due to s/c between field & line scan coils | 14-09-04 |
Hitachi | CPT2508 | Tripping | Replace C910 & 916 33µ 10v; C919 4n7 2kv; C927 2n2 2kv. Change C914 to 10µ, check C909 150µ 400v, R919, R920, R931 & R932 | 14-09-04 |
Hitachi | G7P MkII CPT2508 | Dead - LOPTr blows | IC701 TDA2579 | 14-09-04 |
Hitachi | G7P MkII CPT2508 | Pic pulls to right when heated | Q905 connection to pcb suspect - resolder | 14-09-04 |