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Download Sharp AL-1451 Specifications
Transcript
( !"#$%& 10.Power circuit block diagram A. Block diagram The power circuit is composed of the main section, the high voltage circuit, the FW signal section, and the heater lamp drive circuit. The main section directly rectifies the AC power current and switch-converts with the DC/DC convertor, and rectifies again and smoothes to form each DC power. In the high voltage circuit section, the 24V output of the main section is switch-converted by the DC/DC convertor and rectified and smoothed to form the high voltage output. The FW signal section fullwave-rectifies the AC power to supply signal output at the timing of 0V. Series regulator 3.3V ACin Noise filter Rectifying/ smoothing Invertor circuit Transformer T1 Rectifying/ smoothing Series regulator 5V Series regulator 12V Rectifying/ smoothing Rectifying/ smoothing Control 24V PC1 Main section High voltage section Invertor MC High voltage transformer T101 MC MC IN Invertor Series regulator DV BIAS BIAS Series regulator GRID GRID L TC High voltage transformer T102 TC Dividing circuit BC TC IN FW control section Full-wave rectifying FW PC3 Heater lamp drive circuit section HL PC2 /PR Heater lamp output RY1 AL-1551 ELECTRICAL SECTION 12-14
