Read Sharp LC-52X20E (serv.man5) Service Manual online
LC-42XL2E/S/RU, LC-46XL2E/S/RU, LC-46X20E/S/RU, LC-52XL2E/S/RU, LC-52X20E/S/RU
5 – 4
1.22. IC7905 (9NK2510293234) TNY264PN
Enhanced, Energy Efficient, Low Power Off-line Switcher.
It supplies a power supply voltage of BU5V.
• Fully integrated auto restart for short circuit and open loop fault protection saves external component costs
• Built-in circuitry practically eliminates audible noise with ordinary varnished transformer
• Programmable line under voltage detect feature prevents power on/off glitches saves external components
• Frequency jittering dramatically reduces EMI (~10 dB)- minimizes EMI filter component costs
1.23. IC7603 (9NK2633003842) DLA001DTR
High voltage resonant controller.
It supplies power supply voltages of INV60V/S15V/UR15V/PNL12V.
• High voltage rail up to 600V.
• CMOS shut down input.
• Under voltage lock out.
• Soft start frequency sgifting timming.
• Sense OP AMP for closed loop control or protection features.
• High accuracy current controlled oscillator.
• Integrated bootstrap diode.
• Clamping ON Vs.
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