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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: 901
HitachiG6PNO MEMORY IC1102 NO -30vR772 1k214-09-04
HitachiG6PNo pic - cut off due to field collapseR715 1R o/c feed to Field o/p chip TDA3654 - no other ff14-09-04

HitachiG6PNo sig Just sound OSD okIC1101 M504325514-09-04
HitachiG6PNo signals, osd or controlsIC1101 M50432551SP micro faulty - no movement on data lines14-09-04
HitachiG6PNo tune storeR772 1k2 o/c14-09-04
HitachiG6POnly left hand 3" of pic visble - rest blankedC782 2n2 2kv tuning cap14-09-04
HitachiG6PPale colourQ856 2SC2271 col diff tr on crt base leaky14-09-04
HitachiG6PPICTURE COMES ON ALL WHITE THEN SET TRIPS OFFR771 OC D763 SC14-09-04
HitachiG6PRed vert bands gradually filling screenIC1104 M50450-023P graphics gen chip14-09-04
HitachiG6PShut down aft a couple of secs of sw onCrowbar thyristor Q902 firing - ok if gate dis'd - ZD752 24v in EHT sensing leaky14-09-04
HitachiG6PShutdown - after couple of seconds.ZD752 ( 24v zener ) leaky.14-09-04
HitachiG6PSNOW ON SCREEN NO OSDIC1101 MICRO IC14-09-04
HitachiG6PSound level variesStab 12v line varies - ZD791 HZ11LC2 in Q791 base cct 14-09-04
HitachiG6PSound poor & intIC201 HA11485NT in IF unit dry joints14-09-04
HitachiG6PSync poor or non existantC701 100µ 25v14-09-04
HitachiG6PTripping effect - line drive pulsingCheck C1101 2µ214-09-04
HitachiG6PTRIPS HT COECT AT 110v IC501 PIN 24 ( START UC1101 ( MICRO RESET ) US14-09-04
HitachiG6PTxt lines at top of picIC681 µPC1378H14-09-04
HitachiG6PTxt missing or int12v I/p to oin 2 PL1204 on txt pcb low at 10.5v; R761 1R = 5R14-09-04
HitachiG6PVARYING SOUND LEVELZD791 ZENER HZ11LC2 IN Q791 BASE CIRCUIT14-09-04
HitachiG6PWhistling psu - esp on bright scenesC909 220µ 160v HT smoothing cap low cap14-09-04
HitachiG6PWon't memorise chansNo -30v to IC1102 - R772 1k2 hi res14-09-04

HitachiG6P CPT2178Sync - line & field int lostIC2110 5v reg dry joints14-09-04
HitachiG6P CPT2476Dead apart from slight noise from psuHT reads 25v - 50v when LOP dis'd ; D902 dry joints14-09-04
HitachiG6P TxtSync missingIC2110 HA17085 5v reg on txt pcb giving out only 2.5v & faulty14-09-04
HitachiG7 PS2Int colourR501 1k5 o/c - also check R502 1k514-09-04
HitachiG7/8QPBUZZ ON SOUNDC410 ( 0.01uF ) or IC201 TA8691N Pt No. T90048614-09-04
HitachiG7/8QPDeadR902 903 82k OC14-09-04
HitachiG7/8QPGREY RASTER WITH FLYBACK LINES , WHITE LINE FROM TOC711 ( 47mfd , 200v )14-09-04
HitachiG7/8QPINT GOES OFFC711 DRY14-09-04
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