Dicas Reparação




Modelo - Chassis 21


Pesquisa: 21 Enviar Dica Resolvida
Resultados 8326
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyHST221
SPEED ADJUSTMENT AND HIGH W&F Speed adjustments and high W&F. High use of motor onHST211, HST221, HSTD105, HSTD107, HCDD117. All use potentiometers onthe cassette PCB to adjust speed. HCDD115 uses the VR inside the motorto adjust speed.
SonySSM121
NO PICTURE AND UNIT POWERS UP, REPLACED R-411 Unit powers up but no picture. Screen voltage (G2) wasmissing due to open resistor R-411.
SonySSM721AMR
NO POWER, REPLACED IC-601 (A BOARD) Monitor is inoperative. No power input to IC-601 and nooutput.
SonyCDPC211
DISC DRAWER DOES NOT CLOSE Drawer would not close. Disc table would rotate.
SonyCDPC215
DISC DRAWER DOES NOT CLOSE Drawer would not close. Disc table would rotate.
SonyCDPC221
DISC DRAWER DOES NOT CLOSE Drawer would not close. Disc table would rotate.
SonyHST211
SPEED ADJUSTMENT AND HIGH W&F Speed adjustments and high W&F. High use of motor onHST211, HST221, HSTD105, HSTD107, HCDD117. All use potentiometers onthe cassette PCB to adjust speed. HCDD115 uses the VR inside the motorto adjust speed.
SonyCDPC215
DIM DISPLAY The display was very dim.
SonyCDPC211
DIM DISPLAY The display was very dim.
SonySEN421CD
SYSTEM CONTROL CABLES Need to know what the part numbers for the system controlcables 1, 2 and 3 are. There are six part numbers listed, 2-US and4-Canadian. No way to identify which ones are which. Couldn't they bemore specific when they make up the manual?
SonyHST221
LOW AUDIO DECK "A", NO AUDIO DECK "B" Audio from cassette decks goes into IC-402. There is littleor no output from this IC.
SonyTAAV521
OVERDISCIPATED RESISTOR/CAPACITOR C-761 mylar capacitor changed shape and looks likeelectrolytic cap. R-779 overdiscipated also. Customer's complaint iswhen you use center channel, popping sound is heard. R-729 had sign ofoverdiscipation also. Output transistors and emitter resistors s
SonyMDP210
INTERMITTENT - WILL NOT PLAY DISC Will not always play disc. Problem is intermittent. Tracedproblem to spindle motor which is defective.
SonyMDP210
TILT MOTOR RUNS CONTINUALLY IN ONE DIRECTION When trying to play MD, LD or CD, the tilt motor would runcontinually in one direction even after reaching the end of its travel.
SonyFH215R
DOES NOT CHANGE ALL FUNCTIONS WITH REMOTE CONTROL Manually all functions work properly. When remote is used,tuner and tape deck functions work fine. However, when you press tape,CD, tuner or phono on the remote, the inputs do not change. Thisoccurred after tech replaced the board.


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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