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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | XM3520 | PROTECTION MODE ALWAYS ACTIVE | Unit stays in protection. | ||
| Sony | SLV575UC | UNABLE TO SET THE TIME | It would be helpful to have more complete information on theinternal function of IC-201 as a troubleshooting tool. A 32.8K clock ismissing. -HQ COMMENTS: Please check the 32khz crystal X202. | ||
| Sony | MVCA10 | NO RF SEARCH | No RF search or randomly goes to a position where the tracknumber does not match the picture content. | ||
| Sony | WMF2078 | NO AUDIO FROM TAPE OR TUNER, OPR/BATT LED DOES NOT LIGHT | OPR/BATT light does not come on in tape or radio. No audio.There is power to the deck. | ||
| Sony | TCU270 | SET CAN'T FUNCTION WITHOUT POWER SUPPLY; JIG DOESN'T WORK | We needed an 18 vac center ground tap power supply to testthis unit. Our shop jig would not work. I ordered the power transformerfrom the AVU-270 model, wired A/C to the input and used the 18Vct windingto power the TCU-270. The windings (secondary) vo | ||
| Sony | SLV555UC | LOST OF CONTRAST IN LOOP THROUGH | When the playback output signal of another unit is loopedthrough the SLV-555UC, the picture looses contrast. | ||
| Sony | XR7300 | MISSING PART NUMBER, KNOB (HANDLE FITTING) | The lift tab on the handle (Knob, Handle Fitting) does notcome with the new handle and most service manuals do not have the partnumber listed. | ||
| Sony | XR5507 | MISSING PART NUMBER, KNOB (HANDLE FITTING) | The lift tab on the handle (Knob, Handle Fitting) does notcome with the new handle and most service manuals do not have the partnumber listed. | ||
| Sony | XR4057 | MISSING PART NUMBER, KNOB (HANDLE FITTING) | The lift tab on the handle (Knob, Handle Fitting) does notcome with the new handle and most service manuals do not have the partnumber listed. | ||
| Sony | UP850N | PRINTER IS NOISY WHEN USING UPP-110HD PAPER | When UPP-110HD paper is used, the unit squeaks and makes loudnoises like old typewriter striking the roller. When you use the UPP-110Spaper, everything is quiet. The only difference between the paper is theUPP-110HD has a shiney surface. We are going | ||
| Sony | CCDTR4 | CAPSTAN ERROR | Using the RM-95 and looking at last fault it showed 00:04(capstan error). Mr. Takesue informed me he has seen 3 or 4 with thisproblem and it turns out to be the flex connectors (pins 1 and 2). Itseems that the pins are pushed down where their not makin | ||
| Sony | SLV575UC | CAPSTAN MOTOR STOPS IN EP | After about 10 to 15 minutes, the capstan motor stops thenstarts up and then stops again. Found the motor getting hot and motorshorting. | ||
| Sony | HST69 | REPLACEMENT IC CAUSES DISTORTION IN OUTPUT | After replacing the power amp SI-1125HD (P/N 8-759-301-25)with its perscribed replacement, the new IC produced noise on the output.Tried another replacement and problem remained. Also removed thecapacitors as described in Hi-Fi bulletin No. HFP0116 to n | ||
| Sony | XR5500 | MISSING PART NUMBER, KNOB (HANDLE FITTING) | The lift tab on the handle (knob, handle fitting) does notcome with the new handle and most service manuals do not have the partnumber listed. | ||
| Sony | KV27EXR15 | DARK PICTURE, REPLACE Q-711 ON "C" BOARD | Unit had very low luminance chroma present and predominatelyred. Looked very much like a low screen voltage problem. Troubleshootingthe C board showed 200V on R, G and B output collectors. They werenot turned on. Found Q-711 Base at .22V and Emitter |