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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: 711
Sharp
BCTVA DV5935H
text vibrates after frame IC replaced
wrong type IC used, use RHIX1471BMZZ
14-09-04
Sharp
BCTVA DV6635
Dead - lop tr s/c
dry joints scan coils, R619 & 632 39R ?w o/c - C619 0µ56 o/c
14-09-04
Sharp
BCTVA DV6635
Repeated failure of lop tr
Dry joints at yoke end of scan coil connector or L603
14-09-04
Sharp
BCTVA DV6635H
No sound
multiplexer IC303 HEF4053BP - can also be caused by corrupt eeprom
14-09-04
Sharp
BCTVA DV6635H
PIC FLICKERS DURING HIGH BRILL OR SUBTITLES
INCREASE VALUE OF C2442 FROM 47nf TO 1mfd Sharp VCEAGA1HW105M ( 1mfd , 50v )
14-09-04
Sharp
BCTVA DV6635H
Pic goes dark & disappears aft few mins
Scastle pulse to IC400 TDA4681 misshapen - FOP chip TDA8350Q faulty - pin 2 o/p
14-09-04
Sharp
BCTVA DV6635H
T700 SWITCH MODE TRANSFORMER CHANGE LATER TYPE NOT
T700 OLD TYPE Sharp RTRNZ0528BMZZ NEW TYPE Sharp RTRNZ0519BMZZ
14-09-04
Sharp
C095
FORGETS MEMORIES !
R1072 33k
14-09-04
Sharp
C095
Loss of memory
R1072 33k
14-09-04
Sharp
C1001
Black thumbprint superimposed over top of pic
R429 in blanking cct
14-09-04
Sharp
C1001 10" Port
CORNER OF PICTURE MISSING
R429 HIGH IN BLANKING CCT
14-09-04
Sharp
C1410
Line lock moved & so had line shift to left
R647 line shift pot hi res (300R)
14-09-04
Sharp
C1410
NO LINE SYNC OR PICTURE SHIFTED TO LEFT
R647 300R OC
14-09-04
Sharp
C1410
Whining only
s/c across 115v line caused by D601 (152v Zener)
14-09-04
Sharp
C1410
Whining only
s/c across 115v HT line - D601 152v zener
14-09-04
Sharp
C1410H
Dead - faint whistle.
LOPTX Part RTRNF1630CEZZ 1 pin needs bending ( earth ) Pin 4 volts
14-09-04
Sharp
C1410H
Whining noise from PSU.
D601 152v zener s/c.
14-09-04
Sharp
C1411HD
St/by only
IC701 STR40090
14-09-04
Sharp
C14121H 7PS
Line jitter
R308 820k
14-09-04
Sharp
C1412H
Dead - no relay operate
R713 330R; R704 47R o/c
14-09-04
Sharp
C1412H
Dead - relay not clicking at switch on.
R713 ( 330R ) , R704 ( 47ohm ) o/c.
14-09-04
Sharp
C1420
Dead - fuse blown.
STR40090 see Tv mag.
14-09-04
Sharp
C1420
Dead - fuse blown.
Flux on PCB - see Tv mag.
14-09-04
Sharp
C1420
DEAD FUSE GONE + STR40090 US
REPLACE ABOVE + CLEAN FLUX FROM AROUND R711 , 721 C708 + L705
14-09-04
Sharp
C1420
Dead with fuse shattered & STR40090 s/c
Arcing between tracks on pcb between R711 & R721/R711 & C708/L705 junction
14-09-04
Sharp
C1420
Int trip esp on bright pic
Check R623 1M2 & LOPTx
14-09-04
Sharp
C1420H
Int hum bar on pic & int negative pic
Tuner int - replaced at MCES
14-09-04
Sharp
C1420H
Int hum on vision sometimes negative pic
Tuner u/s
14-09-04
Sharp
C1420H
No sound, chan change or tuning
Chan change button had dropped to bits
14-09-04
Sharp
C1420H
No sound, chan change or tuning
Chan change button dropped to bits
14-09-04
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