Read Sharp LC-40LE600E (serv.man8) Service Manual online
LC-32/40/46LE600E/RU/S
6 – 1
LC32LE600E
Service Manual
CHAPTER 6.
MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
1. DESCRIPTION OF MAJOR ICs
Ref No.
Name
Part Code
Description
[MAIN UNIT]
IC1301
IC1301
VHiAK4341ED-1Y
DAC
AK4341 is 24 bits DAC of 2Vrms output. A newly developed advanced multiple bit
system is adopted in the
system is adopted in the
modulator. In this model, this IC is used to use the
audio signal from a digital tuner as an audio output signal of SCART1.
IC1302
VHiMT8292N+-1Q
Audio multiplexer
The MediaTek MT8292 introduces the advantages of an input multiplexer, the
headphone driver and the PGA outputs. The analog input pins can either inde-
pendently support GPIO function or provide extra GPIO pins to use. The analog
input pins can either independently support GPIO function or provide extra GPIO
pins to use.
headphone driver and the PGA outputs. The analog input pins can either inde-
pendently support GPIO function or provide extra GPIO pins to use. The analog
input pins can either independently support GPIO function or provide extra GPIO
pins to use.
IC1303
VHiS80944NM-1Y
Voltage detector with built-
in delay circuit
in delay circuit
This IC is a highly precision voltage detector (4.4V) with built-in delay circuit.
In this model, It used as voltage detector of MUTE signal.
In this model, It used as voltage detector of MUTE signal.
IC1104
VHiPQ1LA505-1Y
ANT5V-REG
PQ1LA505 is series regurator with an on/off function and the over current protec-
tion function.
In this model, it generate 5V.
tion function.
In this model, it generate 5V.
IC501
VHi2BR24C21F-1Y
for service
(RH-iXC206WJQZS)
for service
(RH-iXC206WJQZS)
1K E2PROM
This IC is a 1Kbit-2-wire (I2C bus type) serial EEPROM that can be programmed
electrically. The EEPROM chip stores the EDID data of PC input. This data is
controlled through I2C signals.
electrically. The EEPROM chip stores the EDID data of PC input. This data is
controlled through I2C signals.
IC506
VHiM3221EiP-1Y
RS232C-DRIVER
The MAX3221E is a single driver, single receiver RS-232 solution operating 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 communication controller and the serial-port
connector.
The charge pump and four small external capacitors allow operation from a single
3V to 5.5V supply.
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 communication controller and the serial-port
connector.
The charge pump and four small external capacitors allow operation from a single
3V to 5.5V supply.
IC1508
VHiSii91873-1Q
HDMI_Port _Processor
The SiI91873 HDMI port processor is the second generation of HDMI devices
that support revision 1.3 of the HDMI specification.
The main feature is as follows.
1) 4-input, 1-output HDMI port processor.
2) Integrated TMDS receiver and transmitter cores capable of receiving and
that support revision 1.3 of the HDMI specification.
The main feature is as follows.
1) 4-input, 1-output HDMI port processor.
2) Integrated TMDS receiver and transmitter cores capable of receiving and
transmitting at 2.25Gbps.
3) Supports video resolutions up to 1080p, 60Hz, 12bit or 720p/1080i,
120Hz,12bit.
4) Receiver fully comply with DVI1.0, HDCP1.1 and HDMI1.3 specifications.
IC3302
VHiBD6538G+-1Y
USB high side SW
BD6538G is single channel high side powers switch with low ON resistance Nch
power MOSFET.
Rich safety functions such as over current detection, Thermal shutdown (TSD),
under voltage lock out (UVLO) and soft start function which are required for the
power supply port protection are integrated into 1chip.
power MOSFET.
Rich safety functions such as over current detection, Thermal shutdown (TSD),
under voltage lock out (UVLO) and soft start function which are required for the
power supply port protection are integrated into 1chip.
IC3303
RH-iXC758WJQZQ
VCT & Main CPU
This IC is Video Processor & MAIN CPU.
In this IC, the decode processing and the video signal processing are done.
Moreover, OSD is generated here and added to a picture signal.
In this IC, the decode processing and the video signal processing are done.
Moreover, OSD is generated here and added to a picture signal.
IC3304
VHiS80928NM-1Y
Voltage detector with built-
in delay circuit
in delay circuit
This IC is a highly precision voltage detector (2.8V) with built-in delay circuit. In
this model, It uses as RESET signal of IC3303.
this model, It uses as RESET signal of IC3303.
IC3305
VHiS80920NM-1Y
Voltage detector with built-
in delay circuit
in delay circuit
This IC is a highly precision voltage detector (2.0V) with built-in delay circuit. In
this model, It used as a D-POW signal generator.
this model, It used as a D-POW signal generator.
IC3501/2
RH-iXC505WJQZQ
512Mb-DDR2-SDRAM
This IC is 512Mb DDR2 SDRAM.
This IC operates as a memory of IC3303 (Video Processor). ***
This IC operates as a memory of IC3303 (Video Processor). ***
IC8403
RH-iXC788WJN2Y
2Mb-Serial-FLASH
This IC is 2Mbit CMOS 3.0 Volt Flash Memory with 50-MHz SPI (Serial Peripheral
Interface) Bus and Small Sector for Boot and Parameter Storage.
Interface) Bus and Small Sector for Boot and Parameter Storage.
IC8401
RH-iXC721WJQZQ
512Mb-NAND-FLASH
This IC is 512Mb NAND flash memory.
This IC stores the software data that processes the system of TV such as the
graphic processing, the LCD controls, and backlights etc.
This IC stores the software data that processes the system of TV such as the
graphic processing, the LCD controls, and backlights etc.
IC8455
VHiBR24S64F-1Y
I2C bus type-64K
E2PROM
E2PROM
The BR24S64F is a 64Kbit-2-wire (I2C bus type) serial EEPROM that can be pro-
grammed electrically.
This IC stores the menu data and the adjustment value data of adjustment pro-
cess mode etc.
The data is given out by commands from the main microprocessor.
grammed electrically.
This IC stores the menu data and the adjustment value data of adjustment pro-
cess mode etc.
The data is given out by commands from the main microprocessor.
IC4402
VHiAOZ1320C-1Y
SMART LOAD SW
The AOZ1320 is a P-channel high-side load switch with controlled slew rate.
AOZ1320-04 have a slew rate of 1ms.
AOZ1320-04 have a slew rate of 1ms.
LC-32/40/46LE600E/RU/S
6 – 2
IC4401
VHiMT8295AE-1Q
CI_controller
This is a control IC for PCMCIA cards. This controls information on IC cards
inserted into the PCMCIA card slot (SC4401) or information on software version
upgrade cards saved on flash memories to transfer the data to CPUs and memo-
ries.
inserted into the PCMCIA card slot (SC4401) or information on software version
upgrade cards saved on flash memories to transfer the data to CPUs and memo-
ries.
IC2701
VHiYDA148QZ-1Y
A-AMP
This IC is a digital audio power amplifier. It is mounted by 32QFN small package
with 15W or less stereo. it drives by 10W in 26, and 32 types.
with 15W or less stereo. it drives by 10W in 26, and 32 types.
IC9612
VHiTCR5SB33-1Y
1CH-SW-REG
BU3.3V-REG
BU3.3V-REG
The TCR5SB33 is CMOS general-purpose single-output voltage regulators with
an on/off control input, featuring low dropout voltage and low quiescent bias cur-
rent. The output current is possible up to 200mA or less. In this model, it generate
BU3.3V.
an on/off control input, featuring low dropout voltage and low quiescent bias cur-
rent. The output current is possible up to 200mA or less. In this model, it generate
BU3.3V.
IC9614
VHiS80928NM-1Y
Voltage detector with built-
in delay circuit
in delay circuit
This IC is a highly precision voltage detector(2.8V) with built-in delay circuit.
In this model, It used as enable signal of BU3.3V_REG.
In this model, It used as enable signal of BU3.3V_REG.
IC9605
VHiLV5893M+-1Y
1CH-SW-REG
D3.3V-REG
D3.3V-REG
LV5893M is 1.8A 1ch step down switching regulator.
In this model, it generate D3.3V.
In this model, it generate D3.3V.
IC9611
VHiTCR5SB25-1Y
1CH-SW-REG
2.5V-REG
2.5V-REG
The TCR5SB25 is CMOS general-purpose single-output voltage regulators with
an on/off control input, featuring low dropout voltage and low quiescent bias cur-
rent. The output current is possible up to 200mA or less. In this model, it generate
CPU2.5V.
an on/off control input, featuring low dropout voltage and low quiescent bias cur-
rent. The output current is possible up to 200mA or less. In this model, it generate
CPU2.5V.
IC9608
VHiLV5893M+-1Y
1CH-SW-REG
D5V-REG
D5V-REG
LV5893M is 1.8A 1ch step down switching regulator.
In this model, it generate D5V.
In this model, it generate D5V.
IC9604
VHiLV58072M-1Y
1CH-SW-REG
D1.1V-REG
D1.1V-REG
LV58072M is 3A 1ch step down switching regulator.
In this model, it generate D1.1V.
In this model, it generate D1.1V.
IC9606
VHiLV5805M+-1Y
1CH-SW-REG
D1.8V-REG
D1.8V-REG
LV5805M is 2A 1ch step down switching regulator.
In this model, it generate D1.8V.
In this model, it generate D1.8V.
IC9603
VHiMM3141YN-1Y
CPU1.25V-REG
MM3141 is single-output voltage regulators with an on/off control input.
In this model, it generate CPU1.25V.
In this model, it generate CPU1.25V.
IC9610
VHiPQ1LAX95-1Y
S9V-REG
PQ1LAX95 is the low power loss regulator equipped with the on/off function and
the over current protection function. In this model, it generate S9V.
the over current protection function. In this model, it generate S9V.
IC2602
IC9601
IC9613
IC9601
IC9613
VHiHC2G66DP-1Y
Bilateral Switch
This IC is provides a dual analog switch. Each switch has two pins for input or
output and an active HIGH enable input.
output and an active HIGH enable input.
[POWER UNIT]
IC7102
IC7102
TNY274PN
BU5V
SW-REG-CTL
for 40”/46”
SW-REG-CTL
for 40”/46”
This IC is IC for the switching regulator with Enhanced Flexibility and Extended
Power Range
In this model, non-reg BU5V power supply is generated.
Power Range
In this model, non-reg BU5V power supply is generated.
IC7101
UCC28061
UR13V
P-FACTOR
P-FACTOR
for 46”
This IC is IC that improves Power-Factor in 13V_Regulator circuit of 46 type
power supply circuit.
The protection functions such as UVLO, Brounout, OVP and AOC are built into in
this IC.
power supply circuit.
The protection functions such as UVLO, Brounout, OVP and AOC are built into in
this IC.
IC7200
NCP1606B
UR13V
P-FACTOR
P-FACTOR
for 40”
This IC is IC that improves Power-Factor in 13V_Regulator circuit of 40 type
power supply circuit.
The protection functions such as UVLO, Brounout, OVP and AOC are built into in
this IC.
power supply circuit.
The protection functions such as UVLO, Brounout, OVP and AOC are built into in
this IC.
IC7104
SSC9502S
UR13V
SW-REG-CTL for 40”/46”
SW-REG-CTL for 40”/46”
This IC is switching power supply IC of a monolithic type.
In this model, non-reg UR13V power supply is generated.
In this model, non-reg UR13V power supply is generated.
IC7505
FA5573
VLCD
LOW-STANDBY
for 40”/46”
LOW-STANDBY
for 40”/46”
This IC is IC for the low standby power requirement type switching power supply
control.
In this model, backlight LED power supply (VLED=187/209V) is generated.
control.
In this model, backlight LED power supply (VLED=187/209V) is generated.
IC7101
VIPER17
BU5V
SW-REG-CTL
for 32”
SW-REG-CTL
for 32”
This IC is switching power supply IC of the off-line converter type with a PWM
control.
In this model, non-reg BU5V power supply is generated.
control.
In this model, non-reg BU5V power supply is generated.
IC7001
L6562A
UR13V
P-FACTOR
P-FACTOR
for 32”
This IC is IC that improves Power-Factor in 13V_Regulator circuit of 32 type
power supply circuit.
The protection functions such as UVLO, Brounout, OVP and AOC are built into in
this IC.
power supply circuit.
The protection functions such as UVLO, Brounout, OVP and AOC are built into in
this IC.
IC7002
FA5538
UR13V
SW-REG-CTL for 32”
SW-REG-CTL for 32”
This IC is switching-power-supply control IC of the current mode system where
power MOSFET drives directly. In this model, UR13V (32 types) is generated.
power MOSFET drives directly. In this model, UR13V (32 types) is generated.
IC7251
FA5511
VLCD
SW-REG-CTL for 32”
SW-REG-CTL for 32”
This IC is IC for the PWM type switching power supply control.
In this model, backlight LED power supply (VLED=144V) is generated.
In this model, backlight LED power supply (VLED=144V) is generated.
Ref No.
Name
Part Code
Description
LC-32/40/46LE600E/RU/S
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2. Detailed ICs Information
2.1. IC1301 (VHiAK4341ED-1Y)
2.1.1 Block Diagram
2.1.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
1
MCLK
I
Master clock input pin. An external TTL clock should be input on this pin.
2
BICK
I
Audio serial data clock pin.
3
SDTI
I
Audio serial data input pin.
4
LRCK
I
L/R clock pin.
5
RDN
I
Power-down mode pin.
When at “L”, the AK4341 is in the power-down mode, held in reset and AOUTL/R are held in VCOM.
The AK4341 must be reset once upon power-up.
When at “L”, the AK4341 is in the power-down mode, held in reset and AOUTL/R are held in VCOM.
The AK4341 must be reset once upon power-up.
6
SMUTE
I
Soft mute pin in parallel control mode.
“H”: Enable, “L”: Disable
“H”: Enable, “L”: Disable
7
ACKS
I
Auto setting mode pin.
“L”: Manual setting mode, “H”: Auto setting mode.
“L”: Manual setting mode, “H”: Auto setting mode.
8
DIF
I
Audio data interface format pin.
“L”: 24bit MSB justified, “H”; I2S.
“L”: 24bit MSB justified, “H”; I2S.
9
DEM
I
De-emphasis enable pin.
“H”: Enable, “L”: Disable
“H”: Enable, “L”: Disable
10
AOUTR
O
Rch analog output pin.
When PDN pin = “L”, outputs VCOM voltage.
When PDN pin = “L”, outputs VCOM voltage.
11
AOUTL
O
Lch analog output pin.
When PDN pin = “L”, outputs VCOM voltage.
When PDN pin = “L”, outputs VCOM voltage.
12
HVDD
I
Output buffer power supply pin.
Normally connected to VSS with a 0.1
Normally connected to VSS with a 0.1
µF ceramic capacitor in parallel with a 10µF electrolytic cap.
13
VSS
—
Ground pin.
14
VDD
—
DAC power supply pin.
15
VCOM
O
DAC common voltage pin.
Normally connected to VSS with a 10
Normally connected to VSS with a 10
µF electrolytic cap.
Outputs VCOM VDD voltage either PDN pin = “L” or “H”.
16
GAIN
I
Gain control pin.
“H”: +6dB, “L”: 0dB, open: +12dB.
When PDN = “H”, the gain pin is connected to VDD and VSS with 50k
“H”: +6dB, “L”: 0dB, open: +12dB.
When PDN = “H”, the gain pin is connected to VDD and VSS with 50k
Ω resister and held to VDD/2 when open.
When PDN = “L”, connected to VSS with 50k
Ω resister.
LC-32/40/46LE600E/RU/S
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2.2. IC1302 (VHiMT8292N+-1Y)
2.2.1 Block Diagram
