Dicas Reparação SONY
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | TAP7F | DEFECTIVE IC101/102 | This unit was locked in the tape position. | ||
| Sony | TAF6B | DEFECTIVE ATTENUATOR ASSEMBLY | This unit had intermittent noise (popping) in the left channelonly with signal applied. We found the attenuator assy (volume control)making poor connection. This was an odd problem because it did not appearto be a problem with the control assy. It onl | ||
| Sony | TAF55 | ALL LAMPS OPEN IF ONE OPENS | All lamps are open. Apparently when one of the lamps failsthe others also go when a peak is received. | ||
| Sony | STRV45 | POOR GROUNDING | A lot of these units were coming in for intermittent shut-down. A very common cause was poor grounding (see diagram). The bestway of checking this was to use a digital meter on the 2V range. If thereis a problem the meter usually head 0.62V or more. | ||
| Sony | PSX70 | OPEN TRANSISTOR | When unit starts cueing works. After that, the manualcueing does not work. There was a pulse at the base of Q133 andcollector of Q134 after that there were no pulses. | ||
| Sony | PSFL1 | WORN GEARS | When the drawer was opened or closed, erratic and noisyoperation was noted. | ||
| Sony | HMK3000 | RE-ALIGNMENT OF CAPSTAN GEAR | Tape would jam intermittently. By moving the capstan gear,unit would work. | ||
| Sony | CF450 | SUBSTITUTION OF POWER TRANSFORMER | The above power transformer is now substituted by1-442-513-XX with a few extra leads and no installation instructions. -HQ COMMENTS: The power transformer you have is for general export.The original transformer is 1-441-762-XX. This has been substitute | ||
| Sony | XR77 | DEFECTIVE RELAY | Left channel cuts in and out during tape. | ||
| Sony | XM120 | OVERSIZED CAPACITORS | C607, 608, 609 are all one inch tall in original unit. Partssent from KC are 1 1/2 inch tall which presents a problem in installationin PPS board because of height. -HQ COMMENTS: We have printed a Tech. Newsletter giving the part numbersfor these small | ||
| Sony | TCK71 | CAPSTAN BASE ASSY | This unit ocassionally skews. We found that the left pin onthe capstan base assy was loose. | ||
| Sony | TCK65 | CAPSTAN MOTOR | We found the capstan motor siezed as a result of the rearbearing coming loose. This locked position caused the motor drives tooverheat and short which in turn burnt the board. | ||
| Sony | TCFX1010 | ERROR IN MANUAL | The system control schematic on page 49 shows the +5 volt lineand the -11.7 volt line connected together at the positive side of C773.The fly speck where the lines cross should not be there. -HQ COMMENTS: When we need a S/B on this model for something e | ||
| Sony | TCFX500R | GEAR WEARS | Unit makes grinding noise when reversing. Intermittently willjam at same time noise is heard. Gear is made of soft plastic. Inreverse mode torque is too great and teeth pre-destroyed. | ||
| Sony | TCFX44 | BURR ON CAM | No fast forward. |