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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: 1049
PanasonicZ4 ChassisNo syncComes from Txt board where IC3507 MAB8461-PW216 was faulty (dis pins 2 & 3 to check)14-09-04
PanasonicZ4 ChassisNo video with faint unsync lines in backgroundSync pulses leaving pin14 IC521 poor - 180pF cap connected to this pin leaky14-09-04

PanasonicZ4 ChassisSlight tuning drift, no sound, no Vol OSD (other OSD OK)Insufficient sync drive to Q1272 base. C524 180pF connected to pin 14 IC521 leaky14-09-04
PanasonicZ4 ChassisThe Panasonic Z4 ChassisSee TV Mag Sept - Nov 199414-09-04
PanasonicZ4 ChassisWhen chan stored in a prev stored location, all chans appear the sameCheck for dry joints around link J10 on Txt pcb14-09-04
PanasonicZ4 TC15M1RPDead with STR54041 & 2SD965R Trs s/calso 4R7 surge res o/c - also replaced 10µ 63v & 100µ 6v3 elects on psu pri & check for dry joints14-09-04
PanasonicZ4 TX21M1T/BKBlanking from LHS with ragged edges10µ 250v on main pcb rear edge14-09-04
PanasonicZ421V TX21GV1Flyback lines at top - Txt OKRemove by going thro' self test proc - press vol down on set & status button on hset14-09-04
PanasonicZ421V TX21GV1Int switches off & onIC1807 TOP210 chopper chip14-09-04
PanasonicZ5DeadD806 AU02V0 DIODE14-09-04
PanasonicZ5deadREPLACE D806 PART. NO. AV02AVO14-09-04
PanasonicZ5DEAD , IC801 GETTING WARMD806 AU02V014-09-04
PanasonicZ5Dead but standby light on Power supply chirping loudly, No 125V.R812 33ohm metal film special from SEME part No. ERQ12HJ330.14-09-04
PanasonicZ5Dead no st/by lightIC801 STR5142414-09-04
PanasonicZ5Dead One quick flash of standby light at switch on, very faint ticking from power supply, low 125v supplyR813 and 821, 330k 1/2 watt14-09-04
PanasonicZ5Int thick lines across screenDry joints tuner14-09-04
PanasonicZ5No coleeprom IC1205 faulty - no set up data for IC60114-09-04
PanasonicZ5no pic sound ok - blank rasterno line pulses at pin 38 IC601TDA8361- Q504 sm BC847B faulty14-09-04
PanasonicZ5TrippingAll these items are in the PSU primaryR810/R813/R818/R819/R821[330K] C823[10nf 500V] Snubber capacitor14-09-04
PanasonicZ5TrippingD806 AU2AVO (measuered ok)14-09-04
PanasonicZ5tripping with st/by led blinkingR525 300k 1/4w replace with 1/2w (under R564 near Plug E7) other causes- R810, R813, R818, R821 330k, C823 10nf 500v subber cap14-09-04
PanasonicZ5Trips with st/by led blinkingR525 300k 1/4w replaced with 1/2w (Under R564 near pug E7)14-09-04

PanasonicZ5 ChassisA look at the Panasonic Z5 CircuitSee TV Mag Aug - Oct 199614-09-04
PanasonicZ5 ChassisDeadIC801 overheating - D806 AU02V0 leaky14-09-04
PanasonicZ5 ChassisDead - no psu activitySTR51424 chopper chip had internal s/c between pins 2 & 414-09-04
PanasonicZ5 ChassisLack of height with top foldover30v supply low due to R521 8R2 hi res14-09-04
PanasonicZ5 ChassisLED flashes & PSU whistlesR821 330k in trip cct o/c14-09-04
PanasonicZ5 ChassisNo signals4Mhz Xtal in tuner dry joints or not soldered; (30v line is the tuning volts & MB is 11v supply)14-09-04
PanasonicZ5 ChassisTripping with HT lowC823 10nF 500v in snubber cct leaky14-09-04
PanasonicZ5 ChassisTrips at sw on after initial rush of EHT with LED flashingProt sw Q502/3 activated cutting off line drive; short out C507 to disable trip; set now operates; R525 300k ?w o/c14-09-04
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