2) Primary rectification and smoothing circuit
AC voltage passed through AC lnlet is rectified to Brige Rectification Diode D801 and changes to
DC voltage. After that it smooths the Smoothing Condenser C806.
When C806 is charged at first, Resistor R802 intercepts voltage current and protects D801, F801.
Start Resistor R803, R804 supply Control IC VCC terminal with rectified DC voltage.
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1. POWER SUPPLY OPERATION
1) AC input and EMI FILTER
AC inlet consists of Line Filter, X-Cap, Y-Cap, Varister. Line Filter(L801, L802), X-Cap(C803,
C888), Y-Cap(C801) belong to EMI Filter section. They decrease noise to get into and out of AC
Line.
CIRCUIT OPERATIONAL DESCRIPTION
POWER SECTION
Picture 1. [AC Input section]
Picture 2 [Rectification, smoothing and starting circuit]
Summary of Contents for DQD-2100D
Page 5: ...4 CIRCUIT DIAGRAM POWER SUPPLY SCHEMATIC DIAGRAM DQD 6100 220V ...
Page 6: ...5 CIRCUIT DIAGRAM VIDEO ...
Page 7: ...6 CIRCUIT DIAGRAM AUDIO ...
Page 8: ...7 CIRCUIT DIAGRAM VFD JOG ...
Page 9: ...8 CIRCUIT DIAGRAM ETC ...
Page 10: ...9 CIRCUIT DIAGRAM VCR_INT DVD ...
Page 11: ...10 CIRCUIT DIAGRAM ATAPI DVD ...
Page 12: ...11 CIRCUIT DIAGRAM CPU ZR36703 DVD ...
Page 13: ...12 CIRCUIT DIAGRAM MPEG DECODER ...
Page 46: ...45 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW ...
Page 47: ...46 JOG COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW M P E G ...
Page 48: ...47 DISASSEMBLY ...
Page 49: ...48 DISASSEMBLY ...
Page 50: ...49 DISASSEMBLY ...
Page 51: ...50 DISASSEMBLY ...