Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | D5A | USE WITH EBP-300 AND ONE TYPE OF BATTERIES | Unit played fine with AC adapter. Customer brought in hisEBP and standard batteries (6). Unit played with EBP using NP-11 or ACadapter. Would not play with six (6) new batteries. The unit would onlyplay with EBP if batteries used were alkaline or rec | ||
Sony | KV1942R | VERTICAL ROLL AND SHRINKAGE AT BOTTOM, YOKE WIRE | When set was turned on picture would roll. If the verticalhold was adjusted picture would stabilize but picture was short a bottomabout 4 inches. After a couple minutes picture will roll again, adjusthold control and picture is normal. | ||
Sony | KX2501 | VOLUME CONTROL CHANGES PICTURE LEVEL AND R02 BURNT, D1205 | Resistor R02 on U-1 board burnt. No video and volume controlwill affect picture level. Checking from chassis ground to power supply12V ground the voltage was -11V. Disconnected K1 and voltage remained.Further checking found D1205 shorted and Q1440 bad | ||
Sony | KPR41DS1 | DEAD, RESOLDERED C-610 | Press power button and only sleep light will come on. No B+135V, or +/-18V. Found positive side of C610 floating on Board. | ||
Sony | CFD5 | IN REPEAT MODE, TAPE DECK OPERATED ABNORMALLY | Tape player worked fine with direction mode SW in normal.When SW placed into repeat mode tape would start then stop, changedirection, then play. | ||
Sony | CDP27 | DISC WON'T SPIN PROPERLY | There is space between arm assy and motor spindle. | ||
Sony | KV1395 | AUDIO OUTPUT FAILURES, SEE SB 291R2 | Original audio outputs failed, and were replaced with newones. They failed again after two weeks. Please advise. -HQ COMMENTS: Tech. S/B # 291R2 was released on this subject Accordinglyvalues of the following components have to be changed:R254: from 27 | ||
Sony | XR37R | ERRATIC DISPLAY | Tape OK, AM OK. On weak FM station, the display may remainstable for some time and then go erratic. On normal FM stereo station,the display will first be normal. Then the audio mutes (when Q513 basegoes low) and a second later the display begins flash | ||
Sony | STRAV760 | RIGHT CHANNEL NOT SWITCHING BETWEEN MM AND MC | The customer complained that the right channel was louderthan the left in the phono mode. We found the problem to be caused byR554 in the MM/MC input switch. It was open. | ||
Sony | ITA500 | PREMATURE SHUT OFF OF ICM | When in VOX or CPC modes the unit shuts down the ICM even ifcaller is still talking. This appears to be due to very low level noisecoming in on the telephone line. The gain of the first stage (IC206Pins 3-4) is very high causing a 10mVp-p signal at Pin | ||
Sony | CCDV8AFU | Q-810 ON HD6 BOARD DOESN'T FIT | Original part on HD-6 board (-12) is a different type ZK69,which is physically different from the 2SA1242LB. -HQ COMMENTS: Please cut the leads on the 2SA1242LB in order to makeit fit. Tokyo is considering replacing the 2SA1242LB with the originalZK69. | ||
Sony | KV1915 | INTERMITTENT MUTING OF AUDIO | Audio level drops to about 1/4 of normal. Set did not looseaudio several days. On a dark scene audio was muted but when switchedback to very light scene came out of mute. Found on S board that whensound was muted Q105 was turned on and Q107 was turned | ||
Sony | D10 | DOES NOT PLAY COMPACT DISCS OVER 60 MIN. | D-10 will not play GRATEFUL DEAD compact disc made by WARNERBROS. RECORD INC. Playing time is over 60 min. -HQ COMMENTS: This has happened with a few other discs as well.However, some discs over 60 minutes will play. We've also found thatwhile a parti | ||
Sony | KV2786R | SERVICE MANUAL ERROR, IC-1112 AND IC-1113 | The parts IC-1112 and IC-1113 are labelled wrong in the S/M.But are correct in the parts list of the manual. Both are marked asSN74LS04. But one is a buffer the other a flip-flop. If the wrong partis used the P-I-P function will not work. | ||
Sony | BMC220 | INTERMITTENT RECORD | During playback, picture would blank out. During record alsothe tape was being erased. |