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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
HitachiC2146 etc"C46TN" displayed - in factory set up modePress the 2 VCR buttons on hset together - when the menu appears go to st/by14-09-04
HitachiC2146 etcField - lines at top of picIC601 field chip14-09-04

HitachiC2146TNDead - LED litCheck 5v reg IC952 & 8v reg IC951, IC950 st/by reg & Field o/p chip TA8427K14-09-04
HitachiC2146TNHor lines/striations across top 1/3rd of picR611 270R 1/2w across scan coils dry joints (hidden behind plastic frame supporting pcb)14-09-04
HitachiC2146TNInt cuts outDry joints Q951, Q952 & R952 82k, R950 56k hi res14-09-04
HitachiC2146TNInt field collapseDry joint on R71014-09-04
HitachiC2146TNInt or totally deadCheck for dry joints at 5v IC952 & 8v IC951 regs, line dr tr Q701 & line dr trfmr14-09-04
HitachiC2146TNInt shuts down to st/byDry joints IC950, 951 & 95214-09-04
HitachiC2146TNInt st/byIC950 dry joints14-09-04
HitachiC2146TNMode set up menuSwitch on holding in "Vol+" & "Vol-" together; Model No now displayed on screen; press 2 x rec buttons on hset together to display Vers & Standard; Version 46 V1.0 (later IC V2.0C)....Standard....I (for uk)..adjust with key 9....L.......key 8...DK.....key 0 BG.. 7...DEFAULT...0 1 to 6 alters value TV button return to 0...A18 Programme up button adjusts value.....LOO programme down value adjusts value .....If H shown set is hotel mode....and is removed by -/-- button....after adjustment put set into standby...14-09-04
HitachiC2146TNSHUTS DOWN ONTO STANDBYCHECK IC950,IC951 AND IC952 FOR DRY JOINTS14-09-04
HitachiC2146TN etcNo soundTDA7263 Audio o/p chip14-09-04
HitachiC2146TN etcTrips soon aft sw onDry joints R719/716 (LH rear of LOPTx)- hard to access, also check R905 0R5 or 2x 1R in Parallel14-09-04
HitachiC2146TN seriesDead or int deadDry joints R956 1k (under bob of glue)14-09-04
HitachiC2156 - C32WD2 &tcInt goes to st/byVR951 +B HT preset 1k goes int or microphonic14-09-04
HitachiC2156/2186HT setting110v14-09-04
HitachiC2156TNDead - trips once or twice at sw onHigh HT - R950 68k hi res14-09-04
HitachiC2164TNDeadCheck for dry joints R719 in trip cct14-09-04
HitachiC2164TNDead - psu shut downR901 82k 1/2w in psu14-09-04
HitachiC2164TNInt start up - ok once goingDry joints Q954 emitter in st/by sw cct14-09-04
HitachiC2164TNInt tripZD701 pt no 2339251M14-09-04
HitachiC2164TNSHUTS OFF INTZD701 Pt No 2339251M14-09-04

HitachiC2164TNTo check psu - remove Q904 & sw onIf no volts replace R901 82k, R909 6k814-09-04
HitachiC2164TNTrips at sw onTDA7263M audio o/p chip s/c14-09-04
HitachiC2164TN C2564TNWONT START , JUST MOMENTARILY ENERGISES THEN DIESCHECK 25v SUPPLY TO AUDIO14-09-04
HitachiC2166TNDead with dim st/by lightDry joints IC90214-09-04
HitachiC2166TNInt tripIC952 5v reg faulty14-09-04
HitachiC2166TNInt tripsRemove glue from IC950 & surroundings14-09-04
HitachiC2166TNSound absentIC002 Hitachi Part No. E730045 14-09-04
HitachiC2166TNSt/by only aft initial EHT rushDry joints IC951/214-09-04
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