LC-19D1EWH (serv.man6). Major IC Informations - Sharp TV Service Manual (repair manual). Page 3

LC-19D1E/S-BK/WH

5 – 3

11

IC205

Voltage Regula-
tor: 1.0V-REG

VHIMM3271AN-1Y

This IC is a regulator IC for super-low current consumption that uses 
CMOS process.  In this Model, this IC generates 1.0V-regurator. 

AV

12

IC206

3.3V-REG

VHIPQ1M335M-1Y

This IC can be used for the power regulator circuit up to 0.15A in cur-
rent capacity with the direct current stabilizing supply element that has 
the ON/OFF function, the overcurrent protection function, and the over-
heating protection function of the output voltage. In this model, this IC 
generates 3.3V-regurator. 

AV

13

IC208

Series Regulator:
2.5V-REG

VHIBH25FB1G-1Y

This IC is a series regulator of the type with 150mA shutdown. The 
overcurrent protection circuit by the output short-circuit etc. and the 
overheating protection circuits by the overload etc. are built into this IC.  
In this model, this IC generates 2.5V-regurator. 

AV

[INV/POWER UNIT]

1

IC7501

INV-CTL

BD9883FV

BD9883FV is IC for DC-AC inverter control. 

POW

[DIGITAL UNIT]

1

IC4001

DIGITAL-PRO-
CESSOR

RH-IXB243WJZZQ

This is a video/audio signal processing IC (Digital Processor) (STi5105) 
for digital tuner, which has been manufactured by STMicroelectronics, 
and incorporates a CPU. In this equipment, it implements GUI process-
ing and video/audio processing for digital tuner, negotiation processing 
with CI-CARD, etc. 

D1

2

IC4201

256Mb-DDR 
SDRAM

RH-IXB765WJZZQ

This is a 256Mb DDR SDRAM IC. This IC features a double-data rate 
dynamic random-
access memory containing 16M-bits columns by 16 bits.
In this model, it is used for SMI memory (for image processing), and 
data is used for operation of the digital processor.

D2

3

IC4202

16M-FLASH

RH-IXC361WJZZQ

This IC is a high performance CMOS super technology 16Mbit Flash 
Memory.
Start software (loader) for the CPU with a built-in digital processor and 
application software have been written on this Flash Memory. 
The digital processor reads these softwares on start-up and implements 
them.

D2

4

IC4204

64Kb-E2PROM

VHIBR24S64M

BR24S64FVM is 64 Kbits E2PROM for I2C BUS. 
This IC stores all data related to the digital module (channels, user set-
tings, etc.).

D2

5

IC4205

2.5V_REG

VHIPQ025ENA

This IC generates B2.5V-regurator. 

D2

6

IC4401

BUS TRAN-
CEIVER

VHILCX245FT-1Y

This IC is a low voltage (3.3V) CMOS 8bit bidirectional transceiver. 
When setting the transmission direction change input DIR to “H”, the A 
bus is switched to input and the B bus is changed to output; if the DIR is 
set to “L”, the B bus is switched to input and the A bus is changed to 
output. When setting the enable input OE to “H”, both A and B buses 
enter the high impedance state. In this equipment, it used to switch bus 
of the data from CI-CARD. 

D3

7

IC4402/
04

BUS Buffer

VHILCX16244-1Y

This IC is a CMOS 16-bit bus buffer of a low-voltage drive.
In this model, it is used to control negotiation communication with CI-
CARD.

D3

8

IC4405

BUS Buffer

VHILCX126FT-1Y

This IC is a three State bus buffer of a low-voltage drive.
In this model,  It is used in order to control the negotiation communica-
tion with the serial signal from a digital tuner, and processor IC.

D3

9

IC4410

5V SW

VHIAOZ1320C-1Y

The AOZ1320 is a P-channel high-side load switch with controlled slew 
rate.
In this model, it used as a 5V switch that supplies power to CI_CARD.

10

IC4601/
02

SW-REG(3.3/5V)

VHILV5805M+-1Y

This IC is a 1CH step down switching regulator.
In this model, 3.3V and 5V in a digital unit are generated.

D4

11

IC4603

3CH V-AMP

VHITHS7314D-1Y

This IC is 3CH video amplifier with 6dB amplifier.
In this model, this 6dB video amplifier is used in order to drive the RGB 
video signal processed by IC4001 to IC801.

D4

12

IC4604

1.2V_SERIES-
REG

VHIPQ012GN1-1Y

This IC generates B1.2V-regurator. 

D4

13

IC4605

DUAL OP-AMP

VHINJM4565V-1Y

The NJM4565 integrated circuit is a high-gain, wide-bandwidth, dual 
low noise operational amplifier capable of driving 20V peak-to-peak into 
400

Ω load.

In this model, it used as a audio pre_amp from IC4001 (digital proces-
sor IC).

D4