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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
PanasonicZ5 TC14S1RDead - F801 o/cD807, D808 & chopper IC801 STR51203M - advisable to get original replacement chip from Pan14-09-04
PanasonicZ5 TX14S2Tlack of height with top foldoverR521 8.2R 2W GONE HIGH (LOPTX PIN 8) PART NO. ERQ2GJP8R214-09-04

PanasonicZ5 TX14S3TService mode accessselect ch60 "AND set sharpness to minimum." Press off timer on remote as well as V down on TV. Use V up & down to step through functions. Press +/- to alter values. Press STORE button after each adjustment is made to exit press norm button.14-09-04
PanasonicZ5 TX21S1Tdead with tripping noiseNO LINE DRIVE, 8V SUPPLY TO IC601 IS LOW BECAUSE R821 330K O/C14-09-04
PanasonicZ5 TX21S1Tframe collapseR521 8.2R 2W GONE HIGH OR O/C (LOPTX PIN 8) PART NO. ERQ2GJP8R214-09-04
PanasonicZ5 TX21S1TPic shifted to right with line foldover & col instabilityTDA8361N414-09-04
PanasonicZ5 TX21S1T/RTripping - runs ok if loaded with a 60w lampQ803 2SD1272QLB leaky14-09-04
PanasonicZ7Dead except from whistle from psuNo line drive - D861 start up supply for IC601 o/c14-09-04
PanasonicZ7Flashing LED at sw on & no start upReplace o/c R811 (220k 0.5w) in power supply.14-09-04
PanasonicZ7No sound - OK with sound I/P via scartFM sound I/p ok at pin 2 IC601 M52778SP-A but no o/p at pin 47 - chip duff14-09-04
PanasonicZ7Screams at sw on, relay operates trip & LED just blinksD861 o/c in psu (8v feed to pin 9 IC601) Cct Diag mistake - anode D861 connects to pin 1 IC851 NOT 85214-09-04
PanasonicZ7Service mode accessSelect chan 60, set sharpness to min, press timer on remote at the same time down arrow on front of set. press str after each adj to store14-09-04
PanasonicZ7 TC14S3RSelf check procPress F button & Vol - button on set & status on r/c at same time. When complete sw off set then on again & retune14-09-04
PanasonicZ7 TC14S3RWeak neg pic - as tho in wrong systemEEPROM IC1205 pt no XL24D02P-AA1 corrupted - needs self checking once fitted14-09-04
PanasonicZ7 TC14S3R/Tstuck in stbyMICRO IC1201 IN PROTECT DUE TO NO +2.6V ON PIN31, R1218 620K 0.5W O/C14-09-04
PanasonicZ7 TC21S3Rswitched to 16:9 modeCORRUPT EEPROM (NO OPTION CODE) , REPLACE MICRO IC1201 AND EAROM IC1205, INITIALISE BY PRESSING STATUS KEY ON REMOTE, FOLLOWED BY 'V' BUTTON ON TV14-09-04
PanasonicZ7 TX14S3blank raster, sound OKR560 300K O/C14-09-04
PanasonicZ7 TX14S3dead, stby LED is low5V STBY RAIL ONLY 2V, D1202 O/C (1N4150T77)14-09-04
PanasonicZ7 TX14S3distorted pic and sound, appears to have no syncEPROM IC1205 (XL24D02PAA1)14-09-04
PanasonicZ7 TX14S3TWont find chans in chan search, those already tuned in are off tune & dist. Tall, flat & greyscale off in AV modeeeprom Part number XL24CO20-AA cured the faults. Caused by dry joint on LOPTx earth tag corrupting EEPROM. Go into"self check" mode. Done by pressing Status button on the remote & V down on set. Shows OPT O2 on screen.Can't store PP until done14-09-04
PanasonicZ7 TX21JTReverts to st/by after a couple of hrs & keeps cutting out when sw back onEEPROM vots had dropped to 2.3v (5v) due to D1202 going o/c - check other diodes in EEPROM supply line also14-09-04
PanasonicZ7 TX21S3stuck in stbyNO 2.6V TO PIN 31 IC1201(Micro), R1218 O/C FUSIBLE 560K 0.5W PART NO. ERO50PKF560314-09-04

PanasonicZ7 TX21S3Tgoes to stby after 5-10 minsD1208 MA170 LEAKY14-09-04
PanasonicZ7 TX21S3Tint. startup, int. blank raster, int. no remote operationLOW SDA/SCL LINES, D307 BZY88C4V7 LEAKY14-09-04
PanasonicZ7 TX21S3Tnegative pic with AGC overload via tiner (OK via SCART)FAULTY EPROM. BEFORE REPLACING ENTER SERVICE MODE AND WRITE DOWN EPROM VALUES.CHANGE IC AND ENTER ORIG.VALUES, YOU MUST ENTER "SHIPPING CONDITION AUTOTUNE"14-09-04
PanasonicZ7 TX21S3Tstuck in stbyEEPROM IC1205 (XL24C02PBAB) FAULTY, CHECK BY BYPASSING THE RELAY14-09-04
PanasonicZ8 TX21CK1int or no soundC1201 470UF 16V14-09-04
PanasonicZ8 TX21CK1tripping, relay clickingC815 220UF 160V LEAKY14-09-04
PanasonicZ8 TX25CK1Lack of height"modified" by replacing R603 from 3k to 4k7.14-09-04
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