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

Model
LC-19D1EWH (serv.man6)
Pages
28
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6.38 MB
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Service Manual
Brand
Device
TV / LCD / Major IC Informations
File
lc-19d1ewh-sm6.pdf
Date

View Sharp LC-19D1EWH (serv.man6) Service Manual online

LC-19D1E/S-BK/WH
5 – 1
LC19D1E-BK
Service Manual
 
CHAPTER 5. 
MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
1. MAJOR IC INFORMATIONS
NO REF NO
Name
Part Code
Description
Drawing NO
[MAIN UNIT]
1
IC801
DVP-M2
RH-IXB882WJZZQ
DVP-M2 is 1 chip picture signal processing LSI for flat panel displays 
corresponding to a multi-format (NATC/PAL/SECAM). A 10-bit A/D con-
verter is mounted as an analog image input, and it has the input termi-
nal of one CVBS, Y/C, Y/Pb/Pr, one R/G/B input each, and one SCART 
input. In a picture signal processing part, a high definition image is 
made by three-dimensional adaptation type Y/C separation and motion 
adaptation three-dimensional NR conversion. DVP-M 2S builds in 64 M 
bit SDRAM as a buffer memory, the microcomputer for system control 
(32/16 bit), 1024 K bytes of flash memory, and the sound multiplex 
decoder, and constitutes the system from small number of parts.
M1
2
IC803
64Kbit-E2PROM
VHIS24CS64A-1Y
The S24CS64A is a 64Kbit-2-wire (I2C bus type) serial EEPROM that is 
electrically programmable.
This IC serves to store the adjustment and other data in the adjustment 
process mode.
The data is given out by commands from the main microprocessor.
M1
3
IC2001
RESET
VHIPST8229N-1Y
It used to system reset for sub-micon(IC2002).
M2
4
IC2002
Sub_micon
RH-IXC165WJZZQ
IXC165WJ is the submicrocomputer added in order to compensate the 
shortage of control with DVP-M2 (MAIN-MICON). This IC mounts with 
the R8C/Tiny series core.   It has the capability to execute a command 
at high speed, and high-speed operation processing is possible. More-
over, variegated peripheral equipment, such as a multifunctional timer, 
serial interface, and a data flash (1KB * 2 blocks), is built in.
M2
5
IC2003
4Kbit-E2PROM
VHIBR24L04F-1Y
The BR24L04F is a 4Kbit-2-wire (I2C bus type) serial EEPROM that is 
electrically programmable.
This IC saves the control data such as un uncontrollable control signal  
by MAIN-MICON (it builds in IC801) etc.
The data is given out by commands from the sub microprocessor.
M2
6
IC2004
Series regulator
VHIPQ1LAX95-1Y
This IC generates B3.3V-regurator. 
M2
7
IC9201
RSDS-transmitter
RH-IXC209WJZZQ
IXC209WJ (LR38875) is a RSDS transmitter for LCD controllers. LVDS 
RGB 8bit data and a clock signal are changed and outputted to RSDS. 
A RSDS output is a differential output of data output 12 pair +CLK out-
put 1 pair, and a data rate corresponds to 180Mbps (@CLK = 90MHz). 
Connection with the RSDS panel is enabled by using it between the 
LCD panel of a RSDS interface and the LCD timing controllers of a 
CMOS output, without changing the existing system.
M3
8
IC9202
OP-AMP  *2
VHINJM2904V-1Y
The NJM2902 is an operation amplifier circuit containing 4 circuits 
which operates with a single power supply. Operation from split power 
supplies is also possible and the low power supply drain is independent 
of the magnitude of the power supply voltage. In this machine, it adopts  
for the COM-BIAS power supply generation. 
M3
9
IC8701
Series regulator
VHIPQ025ENA-1Y
This IC is 2.5V regulator-IC to drive HDMI-IC. 
M4
10
IC8702
HDMI-INTER-
FACE
VHIMST3383D-1Q
MST3383MK is HDMI-IC with 1 set of single link inputs. This IC builds in 
the function of a HDMI interface (25-170MHz operation and HDMI1.0 
are supported), a digital audio interface (a 2ch-serial audio output / 
SPDIF digital audio output is supported), and a digital video interface 
(ITU601/656 YCbCr output format is supported).
M4
11
IC401
1Kbit-E2PROM
VHIBR24C21F-1Y
This IC is a 1Kbit-2-wire (I2C bus type) serial EEPROM this is electri-
cally programmable.
The EEPROM chip stores the EDID data of PC input. This data is con-
trolled through I2C signals.
M5
12
IC403
2Kbit-E2PROM
VHIBR24L02F1EY
This IC is a 2Kbit-2-wire (I2C bus type) serial EEPROM this is electri-
cally programmable.
The EEPROM chip stores the EDID data of HDMI input. This data is 
controlled through I2C signals.
M5
13
IC1001
OP-AMP *4
VHIBA2902FV-1Y
In this machine, it adopts for liquid crystal panel drive power supply 
(VH24, VH56, VL24, and VL56). 
M7
14
IC301
A-SELECTOR
VHINJM2750M-1Y
NJM2750 is  4 input/1 output stereo audio selector with two. 
In this machine, the change of PC-audio, the DVP output audio, and the 
HDMI-audio is performed.
M8
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
NO REF NO
Name
Part Code
Description
Drawing NO
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
NO REF NO
Name
Part Code
Description
Drawing NO
LC-19D1E/S-BK/WH
5 – 4
2. Detailed ICs Information
2.1. IC202 (RH-iXB964WJZZQ) (STV0362)
2.1.1 Block Diagram
2.1.2 Pin Connections and short description
DVB-T RECEIVER
Pin No
Pin Name
I/O
Pin Function
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.
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