Read Sharp LC-37GA9EK (serv.man9) Service Manual online
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LC-26GA5E
LC-32GA5E
LC-32GA9E/LC-32BV9E
LC-37GA9E/LC-37BV9E
· IC1706: BU+1.8V (VOLTAGE INPUT: BU+5V)
Part number:
MP1410
Sharp code:
VHIMP1410ES-1Y
DC to DC Converter. 2A Step down switch mode regulator with a built in internal Power Mosfet. Fault condition pro-
tection includes cycle-by-cycle current limiting and thermal shutdown.
· IC1710: CPLD
Part number:
EPM240T
Sharp code:
RH-IXB823WJZZQ
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:
TDA8931T
Sharp code:
VHITDA893T-1Y
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:
NJM4558M
Sharp code:
VHINJM4558M-1Y
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:
MM1506XN
Sharp code:
VHIMM1506XN-1Y
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:
MM1507XN
Sharp code:
VHIMM1506XN-1Y
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:
NJM2904M
Sharp code:
VHINJM2904M-1Y
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:
TA76431R
Sharp code:
VHITA76431R-1Y
Adjustable precision shunt regulator for feedback control for driving an optocoupler in power supplies
· IC705: POWER SUPPLY CONTROLLER FOR INVERTER
Part number:
MR4020
Sharp code:
VHIMR4020++-1
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.
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