Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | STRD2020 | THE UNIT DISPLAYS "PROTECTION" ON DISPLAY - FAULTY IC613 | No sound, and would display protection. The customer saidthe unit went out during a thunderstorm. | ||
Sony | STRD2020 | INTERMITTENT NO AUDIO OR RTA DISPLAY - RESOLDER IC613 | Unit had no audio and no display on RTA/EQ display. Pin 3(chip enable) of IC-313 was low. Found pin 65 (LT1) of IC-613 to have apoor solder connection. | ||
Sony | CFS2020 | FORMER TYPE MAIN BOARD CROSSES TO NEW TYPE | Service manual 9-953-448-12 lists differences between formerand new type. However,part number of former type main board(A-3260-849-A) subs to part number of new type (A-3260-849-B). Servicerneeds former type main board, as new type main board does not f | ||
Sony | STRD2020 | NO DISPLAY | No display. Radio and all other functions work (audio works). | ||
Sony | STRD2020 | UNIT IN PROTECT MODE AFTER POWER UP, BAD GROUND CONNECTION | Unit in protect, B+ was at +56.6V and B- was at -70.1V. | ||
Sony | STRD2020 | HISS SOUND ON SURROUND REAR SPEAKERS AFTER 30 MINUTES | All speakers play good however, after 30 minutes the rearsurround speakers would gradually start hissing noise. | ||
Sony | STRD2020 | NO LEFT CHANNEL AUDIO | No left channel audio. Traced audio back to IC-307 still didnot have audio. Went to IC-301 pins 2 and 27 had audio. Thought IC-301or IC-307 had to be bad because the digital path was still sending rightchannel audio throughout digital 1 PCB until it b | ||
Sony | STRD2020 | NO AUDIO OR DIGITAL OUTPUT | No audio output and no equalizer display, audio relays turnon. | ||
Sony | STRD2020 | INTERMITTENT LOSS OF AUDIO | Low current failure. Loss of audio signal all modes, and allfunctions. Tapping unit may cause or correct problem. | ||
Sony | STRD2020 | MAJOR OUTPUT FAILURE - NO OPERATION | Both units have the same failure shorted Q-702, 703, 704,705, 706, 707, 708, 709, 710. Defective IC-701, and open F-902. Alsoapplies to serial number 801035. Have not been able to determine whychannels are being wiped. We have noted poor and open sol | ||
Sony | SQD2020 | NOISE IN R CH | The unit was making clicking noise in R-ch back output evenwhen the master volume control is minimum. |