Dicas Reparação SHARP




Modelo - Chassis


Pesquisa: SHARP Enviar Dica Resolvida
Resultados 1459
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
Sharp59CS03H
Dead & whistlingQ306 2SA1797Q sm audio amp s/c - also check Q306, D301/2, D305 1N4933 & check for dry joints back of scan coil pcb
Sharp59CS03H
DeadTDA8375A IF/video proc/tbase chip faulty IC201 (low res between pin 56 & Chassis)
Sharp59CS03H
Audio noise - intQ305/306
Sharp56FW-53H DA50W
E/W faultyC613 560nF 250v o/c in LOP stage
Sharp56FW-53H
Dead & E/W problemsLOPTr BUH515 leaky, C613 SH1010 - CHS dry jointed & o/c - cause of problem, L603 RCILP0286BMZZ, Q506 RHTX0151BMZZ(2SD2391Q) sm E/W Tr, R613 3k3 3w, D516 47v zener
Sharp56FW53H
Service mode accessSwitch on with vol down & Ch up buttons pressed. The ch up/down & vol up/down buttons on the handset are used to alter values & each setting must be stored by pressing St/by
Sharp56FW53H
No audioIC302 (TDA7480) l/h audio o/p Ic (about 8ukp from Seme) and two chokes connected to it L315/L316 (3.3microH) (about 1.50ukp packet of 5 from Farnell) were burnt to a crisp.After replacement I still had no l/h audio, found Q306 (2SC2412 sm) s/c in the +5v feed to the Ic (I used a BC847)
Sharp56FW53H
Lines of R, G & B at top of screen & pin cush dist at topNeed to set up NVM values for specific crt type obtained from Sharp Tech bulletins. Also may need to alter geometry settings in service mode.
Sharp56FW53H
Dead - LOPTr s/cFit new BUH515, check for dry joints C613 & C607 330µ 10v hi esr
Sharp56FW53H
Blows LOPTr int at sw onC607 330µ in line driver
Sharp51FS51H
AGC overload/off tune type faultTuner faulty
Sharp51DT-25H CA1
Stuck in st/by with motorboating from spkrC712 220µ 16v in 10v supply almost o/c
Sharp51DT-25H
Lines across screen when coldC604 220u 10v
Sharp51DT-25H
Lack of height, no vid & tuning drift at sw onNV memory mode - fit 2 x zeners D510/511 pt no EX0404BM22, fit coil Pt no VP-CF120K0000 in place of link J122 & fit another zener D403 pt no RH-EX0412BMZZ. (Cct ref printed on pcb)
SHARP51DT-25H
FRAME COLLAPSE WITH NO SOUNDCHECK Q500 BC328


Assistência TécnicaAs dicas apresentadas destinam-se a técnicos de eletrónica, a tentativa de reparação ou assistência sem ter conhecimentos de eletricidade e eletrónica, podem provocar danos mais graves aos equipamentos e, devido a tensões muito elevadas em alguns circuitos, graves danos fisicos que podem constituir um risco em determinadas reparações.

Não arrisque reparar equipamentos com tensões elevadas se não tiver conhecimentos técnicos para o fazer em segurança.

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