Dicas Reparação




Modelo - Chassis SPPX30


Pesquisa: SPPX30 Enviar Dica Resolvida
Resultados 10
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SonySPPX30
DEFECTIVE DISPLAY/OPERATION We are seeing continuous problems with sub key switch . Referto FPR #P3139 for a previous report. PC board and key pad damaged likeelectro static arc. It may be a chemical reaction around feed throughholes. Tech recommended to cover feed through holes wi
SonySPPX30
LOUD HISSING IN HANDSET AND EXCESSIVE BACKGROUND NOISE Customer complaint static, hissing or can't hear caller well,noise. Found cause to be an overly sensitive w/s mic circuit. Triedseveral different resistor values/combinations at R17 and R25 to find themost effective fix.
SonySPPX30
BACKGOUND NOISE, POOR RANGE - INCREASE BASE POWER Although unit had already been modified per SB, there stillwas plenty of noise.
SonySPPX30
ALL CLEAR COMMAND IN TEST MODE Unit will not come out of test mode. It will respond to alltest mode commands but when 1,1# is pressed the unit gives an error beep.While unit was in test mode 1 ,2, # was accidentally pressed. This erasedthe ID ROM.
SonySPPX30
CHARGE LED ON AT ALL TIMES - CHANGE IC601, P/N 8-759-030-78 Charge LED on when battery not in base for charging, IC601/pin16 voltage was low dragging 9 volt down to 7.5-8.0 volts B+.
SonySPPX30
DEFCTIVE DISPLAY/OPERATION Unit displayed PPPP...across the screen. Often it wouldsearch to answer the call for over 30 seconds. The sub key switch padappeared to have suffered a static discharge and a punch through to thesub board underneath. The failure sample is being forwarded
SonySPPX30
INTERMITTENT SPEAKERPHONE - REPLACE SP601, P/N 1-504-288-11 When speakerphone was on, and the opposite person on thephone was talking, sound would intermittently cut out. I checked IC601and IC602 for audio signal and it was fine. It never changed or cut out.Found speaker SP601 to be bad.
SonySPPX30
RINGS/ NO CONNECT - REPLACE RY601, P/N 1-515-773-11 It will ring handset but no connect at Telco line. I checkedIC501 pin 30 (output of CPU base ) to Q601 (hook on/off) & Q602(Relay/LED drive) transistor, all components functioned properly. RY601 isclicking at off hook function, but switch inside i
SonySPPX30
DISTORTED AUDIO - L401 MISSING. Distortion at handset speaker. I checked transmit frequencyat base, none. I disassembled the base for analysis and found out L401was missing in the base main board. In conductor side no part installedat factory, because solder reflowed at L401 conduct
SonySPPX30
NO LCD DISPLAY LIGHT #3 No illumination of LED at number 3 or DEF. I disassemble thehandset to check if LED is blown. I found out that no LED at D304.Traced is lifted and no LED exist in the handset.


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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