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MakeModelProblemSolutionDate
Found: 1049



PanasonicZ3Set buzzes from PSU but deadIf pin 15 IC101 high ( X-ray protection ) try shorting to chassis , if set ok check Q502 and R560 270k14-09-2004
PanasonicZ3STUCK IN STBY IC1104 5v RAIL LOW AT 4vQ804 OR ZENER DIODE D81014-09-2004
PanasonicZ3TRIPS OFFR560 270k R552 27k14-09-2004
PanasonicZ3Trips off aft 2 secsR560 270k in trip cct (185v supply to RGB monitor)14-09-2004
PanasonicZ3Tuning drifting - worse from cold.C17 ( 10nf ) leaky.14-09-2004
PanasonicZ3XRAY PROT WORKINGCHECK R560 270k14-09-2004
PanasonicZ3 ChassisColour at max & won't reduce - OSD does alterIC1101 micro pin 31 doesn't vary when col adj. Control carried out in IC101 pin 21 on if/dec panel; when this pin grounded a mono pic observed; D1149 MA165 diode leaky14-09-2004
PanasonicZ3 ChassisCuts out on bright scenesR316 47k in beam lim cct o/c14-09-2004
PanasonicZ3 ChassisDeadR801 4R7 5w o/c, IC801 STR50103A-M s/c, D816 HT SR2KN prot diode s/c, Q806 St/by sw tr 2SA683 s/c,, R559 10R 7w o/c, Q551 2SD1439 LOP Tr leaky14-09-2004
PanasonicZ3 ChassisDead - no volts from psuRemove Q806 st/by tr & wind up mains via variac; all worked ok & Q806 2SA683 was faulty14-09-2004
PanasonicZ3 ChassisFailed to start - int, with no R/C operation5v supply from small trfmr at TPE2 = 4.4v; D1124 5v1 zener leaky14-09-2004
PanasonicZ3 ChassisFailure to startR802 330k o/c - bias provider for chopper chip14-09-2004
PanasonicZ3 ChassisField - reduced height with poor linC404 47 50v14-09-2004
PanasonicZ3 ChassisField lin - top stretched & bottom compressedC458 47 or 10 50v14-09-2004
PanasonicZ3 ChassisField scan cramped at bottom at sw onIC451 TDA3653C FOP chip14-09-2004
PanasonicZ3 ChassisInt deadIC1101 reset line slightly low ; C1122 001 leaky14-09-2004
PanasonicZ3 ChassisInt picHairline cracks around line dr trfmr T53114-09-2004
PanasonicZ3 ChassisNo colorC616 10nF 50v leaky - pin 29 IC10114-09-2004
PanasonicZ3 ChassisNo start upWorks ok when pin15 (X ray prot) IC101 is grounded; R560 270k near plug E7 o/c14-09-2004
PanasonicZ3 ChassisReverts to st/by with rush of EHTHT correct - no line drive; removing prot tr Q451 revealed field collapse caused by D453 MA2270 zener diode - the cause of this fault was traced to flashover in crt14-09-2004
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