Dicas Reparação




Modelo - Chassis


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(Chassis)
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SonyCFS950
PROBLEM WITH CASSETTE LOADING A Sony LNX90 cassette would not load properly. The tape wouldblock the head and pinch roller from engaging.
SonySPP22
CANNOT TALK OUT All functions were normal except talking from hand unit, theother person could not hear.
SonySPP22
NO FUNCTION No function at all.
SonySPP22
NO DIAL TONE No dial tone and could not talk out.
SonyCDX5
NEED PART NUMBER - DOWN GEAR SHAFT I need a part # for part I have highlighted. The shaft forthe down gear (161 Page 48) has lost its ability to retain the gearring 169. The spring 160 and gear 161 fall off. I ordered the drivingroller arm assy (217 Page 49), but found out that the par
SonyKV2690R
AUX. APPEARS ON SCREEN, SEE SB #208R AND S/M SUPP #1 Problem is AUX appears on screen, not supposed to. Theproblem is like in the KV-2670R, that we had. This happens approx. everymonth. The servicer goes out with a remote from a KV-2675R and turns itoff. After a month it repeats itself. -HQ COMMENTS:
SonyKV1355R
NO B+, RELACED L-601 The unit had no B+. We found L-601 to the main bridge opened.
SonyKV25XBR
DEAD SET The red wires coming from DY1 and DY2 were broken at the yoketerminal and shorting to the chassis. This blew the fuse and shorted thehoriz output transistor. It appeared as if the wires were twisted off.There was no other damage to the yoke.
SonyKV2670R
INTERMITTENT SND/PIX, RESOLDERING FREQ SYNTH PPU1 Very intermittently the picture would turn all snowy. Wefound the Frequency Synth. unit to be improperly seated and poorlysoldered.
SonySTRAV460
TV INTERFERENCE The unit would produce TV interference between the time whensystem power was applied and the speaker relay engaged. This was pickedup by units several feet away.
SonyICF2010
CPU LOCKED Clock display is OK, but unit will not accept any operatorinput. Pin 8 of IC4 (PLL 1) is not toggling IC502 unlock Pin 9. Keyboard has been replaced. We have six units. -HQ COMMENTS: The unlock output goes high when the unit is powered onfor the firs
SonyXME70
PREMATURE FAILURE OF IC201 When used in defeat mode for extended periods of time, IC201(signal switch) fails.
SonySLHF900
SPECIAL EFFECTS NOISY Noisy Betascan, no slow motion or other special effects.Looked at RF output on scope, no output from A
SonyCDP30
ALIGNMENT PROCEDURE There is one or possibly two errors in the alignment procedure1) Pg 23 indicates RV104 but pictorial shows RV103. 2) Pg 26 he claimswhen he grounds TP5 (assy) the motor spins very fast. Is this normal? -HQ COMMENTS: 1) The pictorial is incorrect. Ple
SonyKV25XBR
DAMAGED BOARD Three out of eight units we received at The Consumer CTRin Tampa have cracked X boards along the edge near Q1111. No damageto the cartons. -HQ COMMENTS: The cause seems to be flexible cabinet/chassis ofKV-25XBR.


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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