Panasonic TV Repair: Common Faults and Solutions.


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Panasonic Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
PANASONICZ4 CHASSIS
Col int low or absentC2651 0ยต01 sm int o/c
PANASONICZ4 CHASSIS
Bright green at sw on and it cuts outC350 on crt base
PANASONICZ4
Tuning drift - sound muted.C524 ( 180pf ) leaky.
PANASONICZ4
Tuning drift no sound no sound osdQ1272 3 4 or more likely c524 180pf
PANASONICZ4
Tuning driftTuner unit
PANASONICZ4
Switches on but diesQhd Asqqah
PANASONICZ4
Strange faults.Reprograme microcomputer see tv mag.
PANASONICZ4
Stores one channel in all locationsEprom (ic1202)24co2ab1
PANASONICZ4
Stations tuned to one position already holding tuCheck around text pcb link j10 etc
PANASONICZ4
Set displays "c" in left centre of screenMicro req's reset hold down vol button on set while pressing timer but on handset should display colum of ok's & reset
PANASONICZ4
Powers up then goes deadCheck q558 , q541 , q542
PANASONICZ4
Over bright picture - with flyback lines.R380 ( 680k ) o/c not through pcb properly.
PANASONICZ4
No video , faint lines in background180pf cap pin 14 , ic521
PANASONICZ4
No sync ( clock and data lines show lower than norMab8461-pw216 text control ic. - ic3507
PANASONICZ4
No sound for 1st 1/2 hour pic shifted to one sideC503 (0.01uf)
PANASONICZ4
Line osc running fastAn5603k ic601 faulty
PANASONICZ4
Letter 'c' towards left centre of screen.Reprograme microcomputer see tv mag.
PANASONICZ4
Int no pic =- osd okCrack in print on video board between q302 em & c302
PANASONICZ4
Int field collapseCheck v at pin 2 ic451 if high replace c402 3.3mfd , blue tant on c board
PANASONICZ4
Int failure to startCheck dry joints but loptr was responsible this time