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Panasonic Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
PANASONIC AS-AK340
F61 and turns off the display, only the power LED is on, changing the sound key to 220 and turning it on to 110, it turns on and plays on the radioQ5110 2sc1740 shorted, d5102 zener 17v shorted and r5114 1.8r open
PANASONIC TC-29KL05
List in the vertical direction (i.e.) without horizontal deflectionC563 390n open.
PANASONICTC-14A7
DullVomiting 17.
PANASONIC 20C6
Volume stops increasing before halfway through the scale and the function mode does not work.I changed the memory (eprom) and it worked normally again.
PANASONICTC-14A9
Turns off when doing auto scanReplace horizontal drive transistor
DVD PANASONIC DVD-S29
Restriction by levelPress on the panelOpen, pause, quink OSD, wait for the screen to disappear or up to 20 seconds. Turn the DVD off and on and that's it.
PANASONIC ALPHA 2W
Squeal at switch on then goes dead, channel indicator okCheck the l.o.p transistor q551 for s/c, overvoltage diode d854 for s/c, r564 / r567 fusible for o/c and also check c808 10uf, 63v and ic801 str54041m and locally for dry joints
PANASONIC NV-HD101
No picture on e-e, i.f output okThis was due to switching chip ic3901 m51292fp on the scart panel
PANASONIC TC1400T
Int loss of signalsCheck r545 for dry joints
PANASONIC NVF70
Bad picture, may be stripy with blue spotsChange c22 in the power supply 680uf, 10v. i used a 1000uf, it works great
PANASONIC NV-G40
Picture noisy on all channelsTransistor q4 d1330 o/c
PANASONIC TX-21S3T
No line driveThis one had me puzzled for a while until i found that diode d861 was open-circuit intermittently!
PANASONIC NVHD100
Narrow sync pulse output in e-e but ok when pre-recorded tape is playedReplace 3.3uf, 50v sm capacitor on hybrid ic301, if fault persists replace ic301 on the y/c sub board
PANASONIC EURO 7
Procedure to enter the service modeSet bass to maximum, treble to minimum, then hold down the index button on the remote and press the v button on the set
PANASONIC NVHD100
Dead after stormCheck the strs6545 regulator chip and the mains fuse
PANASONIC TC15M1R
Tries to start, led lights once, and shuts downDisconnect pin 6 of loptx, set should run with frame collapse. replace frame ic to effect cure
PANASONIC NV-HD625
Loss of colourFilter bp301 may have poor internal contacts
PANASONIC CT-T14R
The diode in parallel with electrolytic capacitor c810 flies because this voltage is very high, close to 200 volts, it should be 138vChanging the 110k r610 was altered
PANASONIC P03RMK2 VJDO3D40
Int capstan motor stops respondingChanged the ic no. ba6871s
PANASONIC 21LIT
Dead set, only red led is onReplace ic an5606k