Toshiba SD-2800 Service Manual - Page 7

Power Supply Block Diagram

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4-2. Power Supply Block Diagram T802 CONVERTER TRANS DC880015-D804 RECTIFIER SMOOTHING D821, C821 RECTIFIER SMOOTHING D822, C822 RECTIFIER SMOOTHING D823, C823 RECTIFIER SMOOTHING 3.3V REG/SW QR883226, R831, D825, C825 RECTIFIER SMOOTHING Q823 9V/SW 5V REG/SW RD883209,, QD883205, RD882371,-DQ883249, -31V REG/SW -9V REG D837, D836 F+F/SW CT880011-C804 AC FILTER Q801 SWITCHING FET A50C/16000H-z120V Q802 CONTROL IC Q821 PHOTO COUPLER DD880097, RECTIFIER SMOOTHING ERROR AMP Q822 Po Sig M+8V VCC+9V E+6.0V VDD+5.0V VDD+3.3V Vkk-31V VCC-9.0V F+F- E+5.0V Fig. 3-4-2

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4-2.
Power Supply Block Diagram
Fig. 3-4-2