Make | Model | Problem | Solution | Date |
| | | |
Found: 1164
|
Akai | CT2125 | Comes on with chirping noise & st/by led on then trips out after 1/2 min | C817 100µ 25v | 14-09-04 |
Akai | CT2125 | Int blank raster with fb lines | OK when con TD203 on txt pcb removed - TZ01 27Mhz Xtal | 14-09-04 |
Akai | CT2567 | St/by only | timing constant capacitor for the standby IC is leaky. The IC is mounted on a heatsink in the middle of the board. C093 is a pair of surface mount capacitors [in parallel] connected between pins 2 and 4 of the IC. Remove these capacitors and replace them with a 220nf. | 14-09-04 |
Akai | CT2579 | 2 inch gap at rh side | C516 470pf 1.6kv next to lop tx | 14-09-04 |
Akai | CT2579N | Steady, Oversized pic | C513 scan corr cap dry joint | 14-09-04 |
Akai | CT2585 | Dead - lop tr s/c | Dry joints & line dr tr T507 BD337-25 int causing arcing noise | 14-09-04 |
Akura | CX25 | Dead | Start up res R804/805 15k (or 18k) 2w | 14-09-04 |
Akura | CX25 | Dead with low ticking noise. | Q401 ( 2SD1555 ) check for drys on R403 , R407 , R804 & R805. | 14-09-04 |
Akura | CX25 | Int blank white raster except for 4 bars on RHS. | Resolder IC705 on print side of upright PCB. | 14-09-04 |
Akura | CX25 | No col | changing the data at addresses 1A and 1B: 1A FF ; 1B 3F cured | 14-09-04 |
|
Akura | CX25 | No line drive - standby only. | Q402 ( line drive ) s/c ( c-e ) | 14-09-04 |
Akura | CX25 | OSD has "purity error" effect | cured by resoldering digital video sub board | 14-09-04 |
Akura | CX25 | Purity error type fault, mono ok | VCO locked to wrong freq setting =249(done via service mode) | 14-09-04 |
Akura | CX25 | Set trips off when warm. | 2x15k start up resisters low in value 1w non-flammable type. | 14-09-04 |
Akura | CX25 | To enter service mode | Press S901 at front of pcb and 'display' on hset together. Use 8 & 9 on hset to cycle thro adjusts. Vol+/- to set each one Store each setting with 'P' b4 moving to next | 14-09-04 |
Akura | CX25 etc | Int no pic, one col etc | Dry joints on earth links on component side of pcb - remove ics to repair | 14-09-04 |
Akura | CX25/26 | Int field coll | dry joints fop chip & hi watt standoff res near scan coil plug | 14-09-04 |
Akura | CX25/26 | Various inc field, brightness, sound & int dead also rf patt | eeprom chip (can be reprog - need serv man & r/c) - note orig settings b4 adj (see TV mag) | 14-09-04 |
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 |