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Resultados 81726

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyFD42A
NO PIX, REPLACED Q802, D802, IC601 AND Q602 1. No picture. 2. No high voltage. 3. Bad keystone.1. Weak drive signal on Q801 base.2. Open Q802.3. No drive of pin 5 (IC601) open Q602.
SonyCDP701ES
HIGH FREQUENCY WHISTLE IN ONE CHANNEL High freq. whistle in one channel. Found cold solder joint onLPF ground tab. This problem could occur on LPF401 effecting other side.
SonyCDP203
WRONG PART The part number for the main board is incorrect.
SonySLHF1000
ONE WEAK OR NO VIDEO HEAD OUTPUT Original problem was one video head tip broken. Replaced withnew disk assy then had symptom of dirty or clogged video heads unable toclear, changed head disk assy. Same results, (BIs worked fine) changedentire drum assy. Same results, changed head swi
SonyKPR4110
NO PICTURE AND NO SOUND, RESOLDERED THE FLYBACK No picture and no sound.
SonySPP110
ID CODE IS NOT SENT TO HANDSET ID code not sent to handset. Test mode showed no problems.When handset was placed on base unit, ID code would not be sent to handset.
SonyITK300
TIME INDICATOR NOT WORKING, ONLY COLOR MARKER Only color marks on indicator tube are illuminated. Checkingvoltages, found pin 14 of IC401 to be 13V. Checked resistance across D401and reading was zero ohm. Further resistance checks found C401 shorted.
SonyMPKM8
PART NUMBER FOR MIC CABLE The elusive mic cable P/N is now known, and are on order fromJapan. -HQ COMMENTS: This P/N was given to us last year, but was unavailable atthat time. We have confirmed with Tokyo that this part is now available.Ten pieces will be sent to our departmen
SonySLHF300
NO TUNER, NO CHANNEL DISPLAY All functions ok, except for the tuner being inoperative andno channel display. Unit stuck in line mode.
SonyCCDV5
VIEWFINDER CRT The original viewfinder is using a CRT made by NEC with gener-ic number on tube C1M40P45. The replacement tube part no. 1-546-061-11 aslisted in service manual is made by Matsushita gen. no. M01JPG5WB (Seeillustration): The tube in fig. 1 uses board no
SonyCCDV110
VERTICAL SMEAR FROM BRIGHT OBJECT Have had two units come in for severe vertical smear frombright object. When camera is rotated, smear remains vertical. Foundsmear caused by DT61.
SonyKV2780R
POOR VERTICAL, REPLACE R-1503 AND ADJ RV-505 Unit had poor vertical interface, very noticeable about 5 in-ches down from the top of screen. Waveform at pin 2, IC-1501 displayeddistortion. Found R-1503 to be open. Replacement did not cure problembut I also had to readjust RV-505, vertical bias.
SonyKV2093R
INTERMITTENT BRIGHTNESS SHIFT, REPLACE RV-707 SUB BRT Complaint was intermittent shift 17 brightness level. Al-though the sub-brightness control checked ok, replacement eliminated thecomplaint. This the third set of this type that I have had this problemwith this control. Sometimes spraying coolant on th
SonyXR55
PART NUMBER INCORRECT IN SERVICE MANUAL The part numbers listed above are in XR-55 service manual ascorrect P/Ns for switches in this unit. Servicers called and statedswitches were different than what was in the unit.
SonyXR17
NO OUTPUT No output. Found Q307 shorted B-C (factory sub.).



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.

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