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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
Make
Model
Problem
Solution
Date
Found: 11
Panasonic
Euro 4 TXW28R4DP
Attempts to start with a burst of EHT but reverts to stby
Replace D558 1SR124-4AT82 S/C use BYD33M & R559 R33 Safety in supply to FOP ic. replaced LOPTr with beefed up one from Pan & resoldered line driver Tx & dry joints in LOPstage.
14-09-04
Panasonic
EURO4 TXW28R4DP
dead, read LED on
LOPTr Q551 s/c, use kit TZS9EK001
14-09-04
Panasonic
EURO4 TXW28R4DP
no sound when rear speakers connected
replace IC2704 TDA2030AV
14-09-04
Panasonic
EURO4 TXW28R4DP
stuck in stby
LOPTr Q551 s/c, use kit TZS9EK001
14-09-04
Panasonic
TXw-28-R4
tripping
lop tr s/c BU250BAX use 2SD1577LB as replacement
14-09-04
Panasonic
TXW28R4
St/by only LOPTr s/c (BU2508AXLB)
Replaced by 2SD1577LB for greater reliability
14-09-04
Panasonic
TXW28R4
Trips to st/by int
C464 220nF had a 22nF cap fitted in error
14-09-04
Panasonic
TXW28R4DP
Sw off aft 15 secs - sound & pic ok
R558 120k by LOPTx fback from beam lim to prot cct
14-09-04
Panasonic
TXW28R4DP Euro4
Blnk raster - no OSD
Microprocessor IC1101 part number SDA5450C48 (30 UKP +VAT).
14-09-04
Panasonic
TXW28R4DP Euro4
No sigs - snow only on screen
leaky SMD transistor marked "BR" inside IF section of the tuner. I used MSB1218ART1
14-09-04
Panasonic
TXW28R4DP Euro4
Sound dist from lh speaker
sound processor IC2102 MSP3410D part number MSP3410DPOB4
14-09-04
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