Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | KV27EXR15 | NO SOUND ON ONE CHANNEL, REPLACE C-466 | No Sound on one channel. Speaker actualy got hot from internalshort. Replaced the speaker and unit returned to normal. Several monthslater unit returned with the same exact problem however this time C-466was found shorted. -HQ COMMENTS: C-466 is the DC | ||
Sony | KV27EXR15 | NO PICTURE SLEEP LIGHT ON, REPLACE C-500 | Set has high voltage. Sleep light is on, but set has nopicture. Found .7Vpp on pin 31 of IC-301 (should be 2 volts). ReplacedIC-500 and IC-301 still not working properly. Found shorted C-500. -HQ COMMENTS: When C-500 (on pin 1 of IC-500) shorts, ver | ||
Sony | KV27EXR15 | BUZZING SOUND, REMOVED SHIELD ON T-602 | Buzzing noise coming from the set. Replaced T-602 stillbuzzes. Used RTV on the metal shield of T-602 - still buzzes. Removedmetal shield and customer is satisfied. -HQ COMMENTS: We will send your report to Tokyo. Please continue toreport to us infor | ||
Sony | KV27EXR15 | NO SOUND - PICTURE OK, REPLACE IC-405 AND F-602 | No sound - picture is ok. The 22 volts is missing from pin 9of IC-405. | ||
Sony | KV27EXR15 | NO SOUND, REPLACE IC-405 | No sound. Signal input to IC is ok however, there isno output. DC bias voltages are all near normal. | ||
Sony | KV27EXR15 | HORIZONTAL LINES IN PICTURE, RESOLDER C-546 | Horizontal lines in picture sometimes on top sometimeson the bottom. Looks like retrace but in reality it is ringing. | ||
Sony | KV27EXR15 | NO PICTURE, IK RELATED TROUBLESHOOTING | As you may have noticed, when servicing this and other unitsusing this particular IC-301, RGB lines at the IC level are blanked any-time the C board is disconnected. The main reason for this blanking isa cathode current detect line (IK). When the unit | ||
Sony | KV27EXR15 | CLOCK GAINS TIME, SEE SB TVP087R1 | Unit would gain two hours a day. The home tech at Costa Mesainstalled the modification (Tech Flash No. 39). Home tech informed meit resolved the problem. | ||
Sony | XR15 | WIRING DIAGRAM OF FRONT END BLOCK IS INCORRECT | Wiring diagram of front end block as shown on Page 16 of theS/M is incorrect. Pin numbers are backwards: i.e. #1 is actually #6.Diagram attached to original. -HQ COMMENTS: We will issue a S/B. | ||
Sony | XR15 | POOR CONTACT AT CONNECTOR | Intermittent audio (FM only). This was present w/radio andtape modes. I have seen two XR-15s with this problem. |