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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CCDF77 | RANDOM AUTOFOCUS AND ZOOM OPERATION | Random autofocus and zoom operation. Found missing data frompin 51 and 52 SCK on IC-501. | ||
| Sony | CCDF33 | CHARACTER GENERATOR NOT WORKING | Character generator not working. Found IC-501 defective. Re-placing IC-501 restored video in data mode but no on-screen display.Found lack of OSD caused by no solder on pin 4 of CN-802. | ||
| Sony | CCDF77 | NO PICTURE IN VIEWFINDER | No picture in viewfinder and found C-171 shorted. | ||
| Sony | CCDF55 | INTERMITTENT RECORD ATF | Tapes recorded and this camera lost ATF lock on playback.Pre-recorded tapes playback ok. | ||
| Sony | KV32XBR65 | PICTURE FADES OUT AFTER 10-15 MINUTES, NO HEATER VOLTAGE | Unit would power up normally but after 10-15 minutes the pic-ture would fade out. Sound was normal. After picture was lost, scopingthe heater terminals on the C PCB showed no filament voltage to the CRT. | ||
| Sony | KV2781R | INTERMITTENT LOSS OF H OUT TRANSISTOR, REPLACE C-578 | Short life for horizontal out transistors. May last from afew days to many months. Found C-578 decreased in value altering thedrive signal. -HQ COMMENTS: This is the decoupling cap located on the base of theHorizontal Drive transistor. | ||
| Sony | KV27EXR15 | NO SOUND ON ONE CHANNEL, REPLACE C-466 | No Sound on one channel. Speaker actualy got hot from internalshort. Replaced the speaker and unit returned to normal. Several monthslater unit returned with the same exact problem however this time C-466was found shorted. -HQ COMMENTS: C-466 is the DC | ||
| Sony | STR313 | REPLACEMENT IC CAUSES DISTORTION IN OUTPUT | After replacing the tone/power amp SI1125HD (P/N 8-759-301-25)with its perscribed replacement, the new IC produced noiseon the output. Tried another replacement and problem remained. Alsoremoved the capacitors as discribed in HI-FI bulletin 116 to no a | ||
| Sony | SLV555UC | CHANNELS CONSTANTLY CHANGING | As soon as power was turned on, channels would start changingdown as if you were holding the channel down button down. | ||
| Sony | SLV555UC | NO FF/REWIND/PLAY | Complaint of no tape movement on unit. Changing the MD-22board from another unit to this unit would make this unit operate ok. Thetechnician had inherited this unit from another technician with PH-001 andPH-002 out. He had installed the sensors by com | ||
| Sony | KPR4110 | INTERMITTENT SHUT DOWN, REPLACED C-5058 (E BOARD) | Unit would intermittently shut down. After finallydetermining it was in protect, the horizontal out transistor waveform wasmonitored. It was discovered to be distorting intermittently. | ||
| Sony | CFS710 | PART NUMBER FOR GEAR NOT SUPPLIED IN SERVICE MANUAL | The gear shown beneath Reference No. 173 on page 22 of theservice manual is listed as not supplied. | ||
| Sony | TCWR808M | INTERMITTENT/NO TAPE OPERATION | TCWR808M with TA-808M. Installed larger cap C418. Unitpowered up but decks worked erratically. Found new Reg. board in TA808M.Open F-906 causing ripple to TC to be high. With F-906 fixed, mod. was notneeded. F-906 seems too small of a value. Blows when | ||
| Sony | XR6500 | INCORRECT PART NUMBER IN SERVICE MANUAL, IC-2 | The part number in the service manual for IC-2 is incorrect. | ||
| Sony | CFSW402 | TAPE SQUEALS AT END OF TAPE | Unverified problem. Servicer reports that squeal occurs dur-ing auto-reverse at end of tape. Using TDK SA90 tape, capstan seems to beslipping on leader. |