Panasonic Repair Tips

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Results: 2930

Make	Model	Symptom	Problem
PANASONIC	14B3T Z375	Excessive vertical overscan caused by a poor factory set up	Enter service mode and alter v size:-
PANASONIC	NVHD660B K DECK	When inserting tape, tape goes in, get a motor whirring noise, and tape ejects again with an "f02" or "f04" error. closer examination shows that tape seating correctly, but tape not being fed out to the head	Cause was the motor powering the main mechanical feed/load and eject gear, underside of main front right of central chasis. small plastic part on motor spindle under gear had split, so slipping. secured part and gear to spindle with super glue! ok now!
PANASONIC	NVFS90EG	Power supply problem, high frequency sound only !	Check / replace c9 1uf, 400v
PANASONIC	TX33AK10 EURO 5	Strange picture / bleary / movement blurr etc etc	This problem was caused by eeprom corruption, once the eeprom was reset the fault was cured note that after a reset reinstallation i.e. tuning will be required
PANASONIC	NV-HD100	Display dead rest of functions ok	Change transistor q1701 on timer operation board
PANASONIC	TX-32PK3	Reverting to standby at switch on	Replace c454 22nf surface mounted component. it is also worth examining the line output and power supply areas for poorly soldered joints
PANASONIC	TX28DK2 EURO 4	No surround sound	As mark said in a fault on the euro 4 , replace the tda2030.
PANASONIC	TX-14/21GV1	No operation, standby led blinking	Replaced c840 47uf, 25v which had gone low in value
PANASONIC	NVG30	Operates for about half hour to an hour and shuts down	Capstan ic located on the underside of main pcb was dry jointed due to exessive heat. remove and discard plastic cover and apply fresh solder removing old. also refresh heatsink compound.i'll try extending the heatsink too
PANASONIC	TX21V1 ALPHA 2	Bright red raster with flyback lines,shutting down after about 30 seconds with squealing from power supply	The fault was due to the supply choke to the red output stage on the tube base panel being o/c, i can only assume the shut down was due to excessive beam current, a long soak test proved all was now ok
PANASONIC	TX-2470	Cogging on vertical elements of picture, p.s.u squealing	Replaced c808 10uf, 50v it had gone low in value
PANASONIC	NVJ45 G DECK	Appeared to be dead like c1110 1uf, 400	Found c1125 and c1130 680uf, 20v leaking onto pcb. remove sm.tx and clean board
PANASONIC	TX21AD2DP	Stuck in standby but tripping, not the usual nvm problem and nothing s/c	Check and replace c804 1uf, 25v, c806, c807 100uf/50v in supply. use 105 degrees cap. types
PANASONIC	TC2195DRS Z3T	Smps noise. low volt and high current on usyst, no screen or sound	Fbt tlf15606f
PANASONIC	NV-HD675 Z-MECH	Intermittently shutting down with ho1 in display	Problem can be caused by stator board vek9017 but in this case the problem was the upper drum assy! the bearings seize up when warm!
PANASONIC	TX28W3 EURO 1	At switch on a strange sound comes and goes for a few seconds, no sound and vision	Check r622, q624 and t639
PANASONIC	NV730B D1 MECHANISM	Video heads wear very quickly	Check the back tension if you haven't done so already - it was set too high when manufactured.
PANASONIC	NVF70	No sound via scart socket	Fit r4908 and r4910 on input/output pack, as they may be missing ! both 47Ω
PANASONIC	NV870 D1 MECHANISM	Mode switch chatters	If it still does this with a new mode switch, check the serial number. if it's prior to numbers beginning a5k... then add a 560Ω resistor and a 50v 0.68uf electrolytic capacitor in series, between pin 2 of ic6002 and ground.
PANASONIC	NV870 D1 MECHANISM	Noisy fm audio	Add a 0.01uf 50v ceramic capacitor between pin 9 of ic4509 and ground only applies to units with serial numbers prior to d5k