Sharp LC-26P55EE Service Manual page 43

Table of Contents

LC-26P55E

LC-26GA5E

LC-32P55E

LC-32GA5E

LC-37P55E

· IC1710:

Part number:

Sharp code:

This IC is a CPLD of Altera and use CMOS EEPROM cells to implement logic functions with 64 Macrocells. This

device controls ON/OFF power supply and signals for inverter unit.

FD604WJ (AV UNIT):

· IC301 & IC302 : AUDIO AMPLIFIER

Part number:

Sharp code:

The TDA8931 is a switching power stage for high efﬁciency class-D audio power ampliﬁer systems. The IC has a high

efﬁciency so that a heat sink is not required up to 20W (RMS).

· IC303 : HEADPHONE AMPLIFIER

Part number:

Sharp code:

The NJM4558 is a dual high-gain operational ampliﬁer internally compensated and constructed on a single silicon

chip using an advanced epitaxial process.

· IC1101 & IC1102: VIDEO OUTPUT

Part number:

Sharp code:

This IC extends the series of ICs for video/audio signal switching, with a 2-input 1-output single video switch with 75W

driver and input bias (6dB gain).

· IC1201: VIDEO INPUT

Part number:

Sharp code:

This IC extends the series of ICs for video/audio signal switching, with a 2-input 1-output single video switch with

75W driver and input clamp.

FD605WJ (POWER SUPPLY UNIT):

· IC708:

Part number:

Sharp code:

The IC consists of two independent, high gain internally frequency compensated operation ampliﬁers which were

designed speciﬁcally to operate from single power supply.

· IC706 & IC707: FEEDBACK CONTROL

Part number:

Sharp code:

Adjustable precision shunt regulator for feedback control for driving an optocoupler in power supplies

· IC705: POWER SUPPLY CONTROLLER FOR INVERTER

Part number:

Sharp code:

A high speed 900V IGBT makes ideal partial resonance operation which ensures high efﬁciency and low noise.

Very low power consumption at micro-loads (burst mode).

Start-up circuit eliminates the need for start-up resistor.

Excess current protection (ON period limitation, primary current limitation), excess voltage protection, and thermal

shut-down function are incorporated.

· IC704: POWER SUPPLY CONTROLLER FOR SIGNAL BOARD

Part number:

Sharp code:

A high speed 900V IGBT makes ideal partial resonance operation which ensures high efﬁciency and low noise.

EPM3064

RH-IXB716WJZZQ

TDA8931T

VHITDA893T-1Y

NJM4558M

VHINJM4558M-1Y

MM1506XN

VHIMM1506XN-1Y

MM1507XN

VHIMM1506XN-1Y

NJM2904M

VHINJM2904M-1Y

TA76431R

VHITA76431R-1Y

MR4020

VHIMR4020++-1

MR4020

VHIMR4020++-1

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Lc-32p55ee Lc-37p55e

Sharp LC-26P55EE Service Manual page 43

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