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Repair tips

Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

MakeModelProblemSolutionDate
Found: 1163
AkaiCT2125Comes on with chirping noise & st/by led on then trips out after 1/2 minC817 100µ 25v14-09-04
AkaiCT2125Int blank raster with fb linesOK when con TD203 on txt pcb removed - TZ01 27Mhz Xtal14-09-04

AkaiCT2567St/by onlytiming 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
AkaiCT25792 inch gap at rh sideC516 470pf 1.6kv next to lop tx14-09-04
AkaiCT2579NSteady, Oversized picC513 scan corr cap dry joint14-09-04
AkaiCT2585Dead - lop tr s/cDry joints & line dr tr T507 BD337-25 int causing arcing noise14-09-04
AkuraCX25DeadStart up res R804/805 15k (or 18k) 2w14-09-04
AkuraCX25Dead with low ticking noise.Q401 ( 2SD1555 ) check for drys on R403 , R407 , R804 & R805.14-09-04
AkuraCX25Int blank white raster except for 4 bars on RHS.Resolder IC705 on print side of upright PCB.14-09-04
AkuraCX25No colchanging the data at addresses 1A and 1B: 1A FF ; 1B 3F cured14-09-04
AkuraCX25No line drive - standby only.Q402 ( line drive ) s/c ( c-e )14-09-04
AkuraCX25OSD has "purity error" effectcured by resoldering digital video sub board14-09-04
AkuraCX25Purity error type fault, mono okVCO locked to wrong freq setting =249(done via service mode) 14-09-04
AkuraCX25Set trips off when warm.2x15k start up resisters low in value 1w non-flammable type.14-09-04
AkuraCX25To enter service modePress 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 next14-09-04
AkuraCX25 etcInt no pic, one col etcDry joints on earth links on component side of pcb - remove ics to repair14-09-04
AkuraCX25/26Int field colldry joints fop chip & hi watt standoff res near scan coil plug14-09-04
AkuraCX25/26Various inc field, brightness, sound & int dead also rf patteeprom chip (can be reprog - need serv man & r/c) - note orig settings b4 adj (see TV mag)14-09-04
AmstradCTV250Bright raster with fb linesTEA5101A driver on crt base failed & feed res14-09-04
AmstradCTV250dim red rasterTDA3301B decoder chip u/s14-09-04
AmstradCTV250int offdry joints chopper tfmr14-09-04
AmstradCTV250No contrastTr102 BC558 leaky c-e14-09-04

AmstradCTV250No secondary suppliesReplaced C418 100µ 25v, C489 100µ 40v, C425 1µ 400v, positor PTC401, R422 5R6 1w o/c, and chopper tfmr14-09-04
AmstradCTV250/280E/W intdry joints CH351 choke feeding pin 5 IC351 TDA814514-09-04
B & O2500 LX2802Int reverts to st/by briefly with blank raster on returnTr6 - use BC338-40 as replacement - checks ok out of cct14-09-04
B & OL2500Servicing the L2500Picture on cover & layout.14-09-04
B & OL2500 LStuck in standby.BU508 s/c.14-09-04
B & OL2502No soundIC101 pin 7 (5.9v) = 0v C111 100µ 25v s/c14-09-04
B & OL2502 (3866)Dead & squealingResolder 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 & OL2502 3866Int 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
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