DOWNLOAD Sharp LC-19D1EWH (serv.man6) Service Manual ↓ Size: 6.38 MB | Pages: 28 in PDF or view online for FREE

LC-19D1E/S-BK/WH

5 – 2

15

IC302

AUDIO CODEC

VHIWM8983++-1Y

The WM8983 is a low power, high quality stereo codec designed for 
portable multimedia applications.
The device integrates preamps for stereo differential mics, and includes 
drivers for speaker, headphone and differential or stereo line output. 
Advanced on-chip digital signal processing includes a 5-band
equaliser, a mixed signal Automatic Level Control for the microphone or 
line input through the ADC as well as a purely digital limiter function for 
record or playback.

M8

16

IC303

STEREO-
POWER-AMP

VHIBD5426MU-1Y

BD5426MUV is a stereo power amplifier  for the speaker drive. 
BD5426MUV has the following feature.  1) A high-quality audio mute is 
achieved by the soft switch technology.  2) Pop sound reduction at the 
time of power supply ON/OFF
3) Excessive output power limitation function.  4) Protection circuit built-
in which detects the direct-current voltage impression to SP

M8

17

IC304

2CH-MULTI-
PLEXER

VHI7WH157FK-1Y

TC7WH157 is the ultra high-speed multiplexer which used silicon gate 
technology. In this machine, it used to as ON/OFF-SW of the DAC-CLK 
signal of the I2S-DATA signal input from HDMI-IC to A-CODEC.

M8

18

IC701

1CH-REG

VHIBD9306AF-1Y

BD9306AF is 1CH Switching-regurator IC. 
In this model, it generates VLSB14.6V-regurator

M9

19

IC702

9V-REG

VHIPQ1LAX95

This IC generates B9V-regurator. 

M9

20

IC703

STEP-DOWN-
CONV

VHIMP1415C+-1Y

This IC generates B3.3V-regurator. 

M9

21

IC704

DC/DC-CONV *2

VHIMM3203B+-1Y

This IC generates VGL(-7V)/VGH(B28V)-regurator. 

M9

22

IC705

STEP-DOWN-
CONV

VHIMP2259++-1Y

This IC generates B1.5V-regurator. 

M9

[AV-TERMINAL UNIT]

1

IC501

AV-switch

VHIMM1492BJ-1Y

This IC is a 5-input 2-output AV switch controlled by the I2C BUS devel-
oped for use in television.
Because there are 2 outputs, it supports 2 screens and P-IN-P, and also 
supports an external output (monitor) pin.

AV

2

IC502

RS-232C-RECEI/
DRIV

VHIIM3221EIP

The MAX3221E is a single driver, single receiver RS-232 solution oper-
ating from a single Vcc supply. The RS-232 pins provide IEC G1000-4-
2 ESD Protection. The device meets the requirements of TIA/EIA-232-F 
and provides the electrical interface between an asynchronous commu-
nication controller and the serial-port connector. The charge pump and 
four small external capacitors allow operation from a single 3V to 5.5V 
supply. 

AV

3

IC504

SERIES-REG

VHIPQ050DNA-1Y

This IC generates B5V-regurator. 

AV

4

IC505

STEP-DOWN-
CONV

VHIMP1415C+-1Y

This IC generates B5.6V-regurator. 

AV

5

IC506

A-AMP  *2

VHINJM4565V-1Y

The NJM4565V 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 to the amplifier of the audio L/R signal outputted 
from SCART1.

AV

6

IC507

RGB-SW

VHITL52055D-1Y

This  IC is a wide-bandwidth, 2-input, 1-output, 3-circuit video switch.   
In this equipment, it is used for switching the red green blue signal at 
SCART1 or digital broadcasting. 

AV

7

IC508

CVBS-SW

VHIMM1507XN-1Y

This IC is a 2-input 1-output single video switch with 75

Ω driver and 

input clamp.
In this equipment, it is used for  switching the CVBS signal at SCART1 
or digital broadcasting. 

AV

8

IC509

5V-REG

VHIPQ1X501M-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 B5V-regurator. 

AV

9

IC510

A-OUT-SW

VHITC4053BT-1Y

This IC is a high-speed triple 2-channel multiplexer.  In this equipment, 
it is used for select the DTV-AUDIO or MPX-AUDIO at the audio output 
signal of SCART1.

AV

10

IC202

DVB-T 
RECEIVER

RH-IXB964WJZZQ

This is a COFDM (Coded Orthogonal Frequency Division Multiplex) 
Demodulator IC. In this equipment, IF signal from the digital tuner is 
decoded to MPEG-2 signal, and it is digitally output. Output signal is fed 
to the digital processor to implement video/audio decode processing. 
This IC is used for digital signal is fed to the digital processor to imple-
ment video/audio decode processing. this IC is used only at digital 
broadcasting.

AV

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

LC-19D1E/S-BK/WH

5 – 4

DVB-T RECEIVER

32

NOT_RESET

I

Hardware  reset, active Low.

15

XTAL_I

I

Crystal oscillator input/external clock(2.5V)

14

XTAL_O

O

Crystal oscillator output.

1

RF_LEVEL

I

ADC 8 input for RF level monitoring.

3

QP

I

Positive Q analog input for beaseband configuration,

4

QM

I

Nagative Q analog input for baseband configuration.

5

VDDA_ISO

-

Analog  ISO neutral polarization.

7

REFP

-

Internal positive reference.

8

REFM

-

Internal negative reference.

9

INCM

-

Internal common mode.

10

IM

I

Negative 1 analog input for IF and baseband configuration.

11

IP

I

Positive 1 analog input for IF and baseband configuration.

12

VDDA_1V0

-

Analog supply (1.0V)

29

SDA

I/O

Serial data (open drain)

30

SCL

I

Serial clock (open drain)

21

SDAT

I/O

SDA tuner (open drain)

20

SCLT

I

SCL tuner.

43

D7

O

Serial MPEG data or parallel MPEG data (bit 7)

42

D6

O

Parallel MPEG data (bit 6)

40

D5

O

Parallel MPEG data (bit 5)

39

D4

O

Parallel MPEG data (bit 4)

37

D3

O

Parallel MPEG data (bit 3)

36

D2

O

Parallel MPEG data (bit 2)

35

D1

O

Parallel MPEG data (bit 1)

33

D0

O

Parallel MPEG data (bit 0)

44

CLK_OUT

O

MPEG byte or bit clock

46

STR_OUT

O

MPEG first byte sync.

LC-19D1E/S-BK/WH

5 – 5

Voltage Regulator: 1.0V-REG

47

D/NOT_P

O

MPEG data  valid/parity

48

ERROR

O

MPEG packet error

18

AGC_RF

I/O

RF AGC control 

(5V tolerant )

17

AGC_IF

I/O

IF AGC control 

(5V tolerant )

64

TEST

-

Reserved test mode, must be grounded.

27

GPIO0

I/O

General-purpose input/output port 0.
Reserved test mode,must be ground.

49

GPIO1

I/O

General-purpose input/output port 1.

60

GPIO2

I/O

General-purpose input/output port 2 or lock indicator.

59

GPIO3

I/O

General-purpose input/output port 3 or lock indicator.

58

GPIO4

I/O

General-purpose input/output port 4 .

57

GPIO5

I/O

General-purpose input/output port 5.

54

GPIO6

I/O

General-purpose input/output port 6.

53

GPIO7

I/O

General-purpose input/output port 7.

52

GPIO8

I/O

General-purpose input/output port 8.
Resen must  be ground.

61

GPIO9

I/O

General-purpose input/output port 9.

23

AUX_CLK

I/O

Auxiliary clock.

25

CS0

I

Chip select LSB.

2, 6, 13, 16

VDDA_2V5

-

Analog power supply (2.5V)

19, 24, 31, 38, 45 ,51, 55, 62

VDD_1V0

-

Digital core supply (1.0V)

22, 28, 34, 41, 50, 56, 63

VDD_3V3

-

Digital I/O supply (3.3V)

1

VDD

I

Voltage supply pin 

2

GND

 -

Ground.

3

CE

I

Output voltage ON/OFF control terminal  (When "CE" is "H", Vout is "ON".)