Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
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Sony | STRVX6 | DC OUT ON LEFT CHANNEL INTERMITTENTLY | Unit pushes speaker cone out intermittently and it shuts down.After the technician checked the unit, he found 1V DC at the speaker ter-minal on L/C and replaced almost all the transistors with negative re-sults. I found if I open the line between the pr | ||
Sony | STRVX6 | NOISY AUDIO | Right channel noisy when volume control turned. Also verynoisy when subsonic switch engaged. Found yellow glue leaking across from+15 volt line at stereo/mono switch to subsonic switch connecting wires. | ||
Sony | STRVX6 | MISSING P/N IN MANUAL | A servicer had a unit with open diodes D901 and D902. Thesediodes are the part of the resistor/diode network (CP001) in the PPS.The P/N is not listed in the S/M. -HQ COMMENTS: CP (composite parts) are not stocked. Repairs are to bedone by replacing ba | ||
Sony | STRVX6 | MISSING P/N IN MANUAL | Part number for C801/C802 4700uFd 63V not listed in S/M. -HQ COMMENTS: Please note C801/C802 P/N for 4700mFd 63VDC mainelectrolytic capacitors. P/N is 1-123-302-00. We will issue a T/N soon. | ||
Sony | STRVX6 | TEMPERATURE SENSITIVE COMPONENTS | Intermittent noise in FM mode only, noise will last for 10 to40 seconds in the first hour of use. After an hour the unit will notexhibit this problem again while playing. | ||
Sony | STRVX6 | LEAKY P405 | Ones digit of the display always shows 0 or 8. Checkedthe waveform at Pin 18 of IC401 (u-com) of this unit and the good unit(S/N 804552) as shown below. | ||
Sony | STRVX6 | POOR CONNECTIONS ON Q414 | This unit had a dim display and erratic tuning Q414 was foundto be poorly soldered on the base and emitter leads. | ||
Sony | STRVX6 | DEFECTIVE IC503 | This unit erratically displayed two or three LED segments.We found the drive IC to be defective. | ||
Sony | STRVX6 | REPEATED INVERTER FAILURE | Unit had been serviced twice before for inverter transistorfailure. First time, it was modified by moving Q801 regulator transistor.Second time, unit was cooked 2 weeks. Before being sent back to customer,where it failed again after 3 hours of operatio | ||
Sony | STRVX6 | DEFECTIVE IC401 | This unit had no display or tuning action on AM/FM. | ||
Sony | STRVX6 | DEAD | Dead unit. Output transistors were shorted causing pulsepower supply to fail - replaced known defective components restoredoperation but bias current, after adjustment would start to increasecausing outputs to run hot. Removed power before damage resul | ||
Sony | STRVX6 | OVERHEATING REGULATOR | The +15V regulator overheated to the point where it burntthe board badly. After replacing the board and modifying according tothe service bulletin we still had a very hot regulator. How can we coolit down? |