Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | STRD911 | SHORTED OUTPUTS | Found shorted output. Transistor's base lead of outputtransistor overdisipated and had fallen off. Have seen three units likethis. | ||
Sony | STRD911 | WEAK AND CRACKLING REAR SURROUND - IC414 DEFECTIVE | Very weak and distorted rear surround, center was fine. | ||
Sony | STRD911 | LOST FM RECEPTION, CUTS OUT WITH VOLUME TURN UP - IC973 DEF. | +5V reg, IC973 defective. Lost FM reception, no tuner.Lost +5 line regulator. Unit cuts out after volume turned up to 4 or 5. | ||
Sony | STRD911 | PROTECTION MODE/OUTPUT SHORTED - REPLACED OUTPUTS | Output transistors shorted, Q755, Q756, Q751 overdissipated. R759, R760 open. Unit had no bias control. | ||
Sony | STRD911 | MISSING PART NUMBER, OUTPUT TRANSISTORS - LISTED UNDER MISC. | Service manual is missing part # for output transistors. For instance Q755, Q756. -HQ COMMENTS: The part numbers for the output transistors are listed onpage 60 of the Service Manual under the heading Miscellaneous. | ||
Sony | STRD911 | UNIT SHUTS DOWN AFTER 5 MIN. - IMPROVE GROUND CONNECTIONS | Unit shuts down after 5 minutes of use - Brand new out of thebox. |