Dicas Reparação PANASONIC
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Panasonic | TX25W1E | Screen turns white intermittently | Bloqueo de la fuente se va el diodo R2KL | ||
| Panasonic | EURO 4 | Int going into standby. | Replace C454 a 22nF smd, located near the Frame o/p ic | ||
| Panasonic | TC-21 S3R Z7 | Picture fades away few seconds after start-up till no picture. Sometimes no picture at all. Sometimes picture OK for longer. Sound unaffected. | Faulty joints on CRT pcb. Cracked solder joints at tube socket connections on CRT circuit board. Caused variable supply to CRT heaters. Resolder all socket pins to pcb. | ||
| Panasonic | TX32PF10 EURO 4 | Over a short period of time the convergence of the picture gets steadily worse. Eventually it is so bad that even the teletext shows double or triple images when they are made up of a combination of colours. Pure colours: Red, Green or Blue are OK. | The Tube must be replaced. Apparantly this is a known problem to Panasonic, especially on 32" tubes. It has been known to happen both in and out of warranty. So far Panasonic when contacted have also paid for repairs when out of warranty 2 years old | ||
| Panasonic | E110 NA | Image and text are to large on screen | Replaced flyback | ||
| 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 |