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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: 83
DaewooCP240 GB20F8T2Dead or relay clicking onlyC840 47µ 25v in psu pri14-09-04
DaewooCP240 GB20F8T2No control of vol or chan change - neg pic with fb lines1703 eprom available from seme part number CAT24C08p at ?814-09-04

DaewooCP240 GB20F8T2To set up & service mode…Put set in standby then press blue yellow green red & standby to get into svc, to adjust use 4 & 7, vert centre 5 & 8 size 6 & 9 slope yellow, blue horiz centre 123 & above to ajust RGB14-09-04
DaewooGB20A5No picture sound ok power supply working okIC1301 TDA8356 _ D301 5.1 Zener14-09-04
DaewooGB21F1T2Dead - 4A mains fuse blownC842 4700pf blue bead cap burnt & short14-09-04
DaewooGB2898CTVArcing in scan coil plug blew componentsField chip TDA8351, then bright blue raster - TDA6106Q B o/p chip on crt base14-09-04
DaewooGB2898STBuzz on sound at low levelresolder fop chip heatsink14-09-04
DaewooGB2898STNo e/w correctionQ404, next to the E/W o/p tr 2SC3198 leaky14-09-04
DaewooGB2898STno picture - sound, heaters, EHT were OK.Decoupling cap C417 4n7 400v leaky14-09-04
DaewooGB2898STSound only - no line driveR820 feed to 12v & 8v feed should be 2R - was 10R in this case14-09-04
DaewooGB2898STSt/by onlyC815 1000µ 25v o/c14-09-04
Ferguson21CB25UT etcParent Lockholding the standby button down for 4 seconds & hide the remote from the kiddies. The set can be turned on again only with the handset.14-09-04
Ferguson21CB25UT etcTo display the menupress PR-(Program minus), stop & on/off buttons on the set (Not the remote). Adjust using arrow buttons & then press Exit to quit menu.14-09-04
FergusonFG20CB22USwitches itself off aft 10 minsReplace 4 elects in pri of psu14-09-04
Goodmans285NS Daewoo GB2898STBuzz on sound at low levelresolder fop chip heatsink14-09-04
ITTCompact B2Trips at sw on - ok when LOP dis'dFault was in psu - C700, 701 10µ ; C704 & C711 47µ14-09-04
LuxorB2Low HT from psu of 90v instead of 129vRN28 560k o/c, also check RN29 330k14-09-04
LuxorB2 B2Dead.TN02 ( thyristor ) BRY551 *note must be L version.14-09-04
Matsui25M1 Sanyo EB2No memoryeeprom IC. ST24C02B (IC790) To initialise new chip, press and hold function button on tv, while pressing recall on remote handset. this gives message on screen Item-1 Set-0 Confirm Set number of all items is "0" by pressing the function button. If it is not "0" change to "0" by the level(+/-) button. (Changing the set number, automatically memorised.) Press the Recall buton to return to the normal TV mode. Then tune in and store channels as usual14-09-04
MitsubishiCt25B2STXbuzz on sound - flat pic0.47µ 50v electrolytic in if and dry joints in if14-09-04
MitsubishiCT25B2STXDead - Q901 s/c.Fit mod kit ( wVe 77901 ) R901 , D908 , Q901 , C908 to 2700pf , C966.14-09-04
MitsubishiCT25B2STXField collapseIC451 TDA8178S - if TDA8171 used mod reqd14-09-04

MitsubishiCT25B2STXField collapse - replacement of FOP chipWhen replacing failed IC451 TDA8178S check elects in field & psu ccts; note TDA8178 nla - use TDA8171 & mod kit usually supplied with it14-09-04
MitsubishiCT25B2STXFIELD COLLAPSE , NO 30V RAILIC551 ( EW ) & R976 , ALSO CHECK Z55114-09-04
MitsubishiCT25B2STXFRAME COLLAPSEREPLACE IC45114-09-04
MitsubishiCT25B2STXNicam dropout with cracklingDry joints IF unit14-09-04
MitsubishiCT25B2STXNo soundFormat EEPROM as per manual14-09-04
MitsubishiCT25B2STXSeveral attempts reqd to sw on & HT high initiallyC909 2.2uF in primary of PSU.14-09-04
MitsubishiCT25B2STXSmeary video esp when coldCheck/replace caps in IF can14-09-04
MitsubishiCT28B2STXN/S DistortionReplace Q4009 on PCC board. (TIP42C Substitute ok)14-09-04
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