Service Manual Transistor Technical Articles CD Download Register Member Login Exit Sign
Home A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
. TV  .  Camera  .  Video camera  .  Notebook  .  Audio  .  Monitor  .  Projector  .  Air conditioning  .  Refrigerator  .  Printer  .  Duplicator  .  Fax machine  .  Mobile  .  Telephone  .  Washing machine  .  Cooker  .  Microwave  .  Other  .  
Your current location£ºHome > Technical Articles > Audio

Musical Fidelity integrated amplifier A300 only the CD channel noise, other channels are normal

Time£º2015-06-06 08:19:57  Source£ºNetwork  Author£ºUnknown  Clicks£º1244
  

Symptom: only the CD channel noise, other channels are normal.fYkservice manual download site
fYkservice manual download site
Maintenance: since other channels are normal fault switch range is fixed on the CD channel and games before converting the relay circuit. The amplifier uses a dual power supply independent power supply, two transformers is very big and heavy, fixed on the bottom of the heatsink, but remember when removing the heavier due to fever, easy to damage the amplifier pins. Remove carefully after cleaning circuit, did not find any damage, when hands are accidentally input terminals the static goes away, remove output terminals found that the terminals with a total copper grounding has been broken, but he kept a close contact, after reconnecting the power on tests, the static goes away.fYkservice manual download site
fYkservice manual download site
In maintenance this class machine Shi must not in unknown reasons of situation Xia free replaced parts, a Taiwan good of machine core of value is each parts parameter between of tie, factory zhiqian is after experience rich of audio Division adjustable more out of, performance and design Shang more is after strictly of test zhihou only listed of, real good of machine not appeared big area components damaged of situation, this is music fax your of reasons, this Taiwan A300 currently second-hand price still keep in 9000 Yuan around. Its quality can be seen.fYkservice manual download site