Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | CDPC225 | POPPING NOISE WHEN AMS BUTTON IS PRESSED (R-375 NOT MOUNTED) | Popping noise heard when AMS button is pressed in rightspeaker and sometimes distorted audio. Checked the inputs of IC-306 andfound pin 4 had incorrect voltage. Upon diagnosis of input circuit Ifound R-375 to be missing. Also applies to serial number | ||
Sony | KV8AD12 | WHITE BEZEL P/N MISSING, 9-901-601-01 | White Bezel part number is missing from the Service Manual. -HQ COMMENTS: The part number for the White Front Cabinet is9-901-601-01. | ||
Sony | HSTD105 | PURPOSE OF BRUSHES MOUNTED TO CHASSIS WHICH TOUCH BELTS | What is the purpose of the brushes installed on chassisresting against the belts? I've heard they can cause W & F. I see onebrush on this unit. -HQ COMMENTS: We have asked Tokyo to explain the purpose of the brusheswhich you have found and they have i | ||
Sony | FD280 | BLURRY PICTURE, REMOVED GLUE | Picture out of focus. Resetting focus control (RV-801) willimprove focus. After a few minutes,it will go out of focus again. Visualinspection of main board shows no signs of breaks or cold solder.Monitoring G-3 supply goes from 250v to 120v. Focus vol | ||
Sony | KV27TS27 | HERRING-BONE PATTERN, SEE SB TVP0165 | On channel 2 only and when set is cold you get a herring-bonepattern starting one inch from the left side of picture is manual with nointerference. This is similar to FPR No. No725 but IC-301 in the Bboard did not fix all of them. Replaced IC-301 and p | ||
Sony | KV27TS31 | HERRING-BONE PATTERN, REMOVE GROUND WIRE, SEE SB TVP0165 | On channel 2 only and when set is cold you get a herring-bonepattern starting one inch from the left side of picture is manual with nointerference. This is similar to FPR No. No725 but IC-301 in the Bboard did not fix all of them. Servicer has two othe | ||
Sony | BM75 | NO LISTEN MODE WHEN USING FOOT PEDAL (FS-75), RESOLDER Q-504 | When unit is controlled by foot pedal (FS-75), listen modewill not work. Listen mode works fine using front panel controls. rewand FF work fine using either front panel controls or foot pedal. | ||
Sony | WMSXF30 | DEFECTIVE MOTORS | Many reports of bad motors. Problems include binding,excessive wow and flutter and irregular speed. -HQ COMMENTS: The defective motors have been investigated and found tobe bad. Tokyo fax (GF302921): The motor has been improved to preventsilicon gas fr | ||
Sony | D2 | IRREGULAR SPEED - BAD SPINDLE MOTORS, P/N X-2641-521-1. | Many reports of bad motors. Irregular speed causes ticking inaudio. If you hold motor and spin, you will feel the irregularities. -HQ COMMENTS: Your samples have been sent to Tokyo for evaluation. Wehave already sent samples to Tokyo in January 1993. | ||
Sony | CFS903 | SOUND DISTORTION - REPLACE FUNCTION SWITCH (S-302) | Sound distorted at full volume. Found battery leaking.Customer claimed installed new set of batteries but last only a shorttime. Upon inspection and test, when function switch is switched to FM orAM radio operation, the motor also runs. Found low res | ||
Sony | CDPC625 | INTERMITTENT TRAY OPERATION, FLEX CABLE (REF. 56) DEFECTIVE | The tray would turn or skip disc intermittently. | ||
Sony | CCDTR71 | LENS IN UNIT DOES NOT MATCH SCHEMATIC | There seems to be two different types of lenses used in theCCD-TR71. The iris motors in each lens are non-interchangeable. -HQ COMMENTS: There are two lens types. Type A (listed in ServiceManual) is the VCL-6210WC. The other type used is the type B (VCL | ||
Sony | CDPH1750 | NO CD OPERATION, BU HOLDER ASSY JAMMED INTO BU CAM SLIDER | The mechanism section of the five-disc player would move alittle then stop (lock up) at turn on. Upon further investigation I couldsee the BU holder assy. (ref. 81) was binding in the BU Cam slider assy.(ref 118). This type of problem is probably due t | ||
Sony | KV2691R | SET SHUT DOWN, REPLACED C-609, AND THE FBT | Fuse was blown but the Horizontal Output was ok. Replacethe FBT and the set shut off when powered up. Ripple found on the 5.7vstandby voltage. | ||
Sony | HBA5700 | NO POWER. (BATTERY PLATE TERMINAL SHORTS TO CAP ON SW79BD) | Unit has no power, drums new batteries. This is caused bynegative terminal of battery plate tap digs into case of filter capacitormounted to SW-79 PCB (capacitor not shown in schematic). This is thesecond unit I have seen with this problem. |