Hitachi 43FDX01B Service Manual - Page 31
Y Sustain Board, Y Drive Board, Z Sustain Board
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Circuit Descriptions, Abbreviation List, and IC Data Sheets LGE PDP 2K6 9. EN 31 9.5 Y Sustain Board 9.7 Z Sustain Board 9.5.1 Purpose Generates Sustain waveform, Reset, Vsc (Scan) and -Vy voltages, and supplies them to the Y DRIVE board. 9.7.1 Purpose To make the SUSTAIN and ERASE pulses that generate SUSTAIN discharge in the panel by receiving LOGIC signal from CONTROL board. This waveform is then supplied to the panel through FPC (Z). 9.7.2 Main Components IPM, FET, DIODE, electrolytic capacitor, and E/R coil. * IPM (Intelligent Power Module) E/R(Energy recovery) Figure 9-5 Y Sustain board 9.5.2 Main Components IPM, diodes, electrolytic capacitors, and FETs. G_16390_025.eps 100806 9.6 Y Drive Board 9.6.1 Purpose • To supply Sustain, Reset waveform, made by the Y-SUS board, to the PDP through the SCAN DRIVER IC. • To supply a waveform that selects the horizontal electrodes (Y SUSTAIN electrodes) sequentially. - Potential difference is 0 V between GND and Vpp of the DRIVER IC during the SUSTAIN period. - Generates a potential difference between GND and Vpp only during the SCAN period. * IPM (Intelligent Power Module) E/R(Energy recovery) Figure 9-7 Z Sustain Board G_16390_026.eps 100806 •Y DRIVER SCAN IC Assembled status Status separated from Y-SUS Board G_16390_036.eps 100806 Figure 9-6 Y Drive board