Dicas Reparação




Modelo - Chassis KV2680R


Pesquisa: KV2680R Enviar Dica Resolvida
Resultados 46
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(Chassis)
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SonyKV2680R
NO PIX, NO SOUND, LEAKY C-104 REPLACED Unit when turned on would come up with high voltage but nosound, no picture and no control from front panel of any function. FoundC104 reading 150 Ohms on Pin 15 of IC105. This capacitor caused no Mclock on Pin 25 of IC103.
SonyKV2680R
SET COMES ON BUT NO OTHER FUNCTIONS, SNOWY SCREEN, OPEN D031 Set could be turned on or off. Raster with snow was presentand no other functions would respond other than on/off. Inspectionrevealed no clock pulses at Pin 16, IC031. Voltage check showed no DCvoltage at Pin 1 or 41 of this IC. I found D039 to be op
SonyKV2680R
NO CHANNEL CHANGE, IC-1302 ON "A" BOARD Unit would not change channels. If channel up/down waspressed, screen would blank for a moment, and return to the same channel.
SonyKV2680R
NO PICTURE AND NO SOUND, C-140 ON "A" BOARD Problem was no picture and no sound. ASC hooked up thisKV-2680R P3 chassis to his RCA test jig model 10J106A using Telematicadaptor 10J733 (Color TV S/B #212).
SonyKV2680R
NO SOUND/PIX, COLD SOLDER ON 12V RECTIFIER D-506 This unit had no sound or picture.
SonyKV2680R
NO AUDIO, REPLACE IC1107 AND ADD CAPACITORS/DIODE The customer informed me that just before the sound went bad,they heard a loud snapping noise. I feel when the set is new and thetube snaps during its breaks in period, causes the IC1107 to become defec-tive. -HQ COMMENTS: To protect IC1107 from static
SonyKV2680R
NO FUNCTIONS WHEN HOT, REPLACED LEAKY D-041 ON "X" BOARD After turn on, all remote control functions were inoperative,plus manual controls. Also the problem would occur about 2 min afterturn on. Heat and cold had no bearing on this unit.
SonyKV2680R
RASTER BUT NO AUDIO/VIDEO, IC1109 SHORTED ON "X" BOARD Unit had raster out, no video nor audio, and R1247 wouldshort out at turn on.
SonyKV2680R
AUDIO EXISTS AT VOL ZERO, REPLACE IC-1107 When the audio level is turned all the way down, you canstill hear audio.
SonyKV2680R
NO FUNCTIONS EXCEPT POWER ON, IC-103 No remote control functions, no channel change, volume change,color change or any control available at the receiver manually exceptpower on.
SonyKV2680R
NO AUDIO/VIDEO, REPLACE 15V REG DRIVE Q-1128 Unit had raster out no video or audio.
SonyKV2680R
INTERMITTENT SHUT OFF, COLD SOLDER ON C-1182 Power relay would intermittently begin to chatter and setwould lose raster and audio. The 18.9 volt line would drop to approx.14 volts when this happens. Found one leg of filter C1182 had a coldsolder connection.
SonyKV2680R
NO VIP OR TIMER FUNCTION, V SIZE ADJ CURED VIP Intermittent VIP, sometimes no VIP function at all.
SonyKV2680R
DEAD SET, DEF H DRIVE T-501 CAUSING DAMAGES The unit came in with a shorted horiz. output transistor anddefective B+ regulator package. We found the problem to be caused by adefective horiz. drive transformer. The primary was shorted.
SonyKV2680R
P/N INQUIRY FOR CRT, 8-735-453-05 SUB TO 8-735-453-05 P/N for KV-2681 CRT is incorrect. -HQ COMMENTS: The part # in S/M 8-735-453-05 is correct and correspondsto A67JHG01X type CRT. In the near future, it will be supplied as areplacement part in sets specifying this CRT.PART NUMBER LANDIN


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