Read Sharp LC-19A1E (serv.man5) Service Manual online
LC-19A1E-BK/WH
5 – 2
16
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
equalizer, 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.
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
equalizer, 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
17
IC303
20W-STEREO-
AMP
AMP
VHiYDA147SZ-1Y
YDA147 is the efficient digital audio power amplifier of the maximum
output 20W (VDDP=14V,RL=4)*2ch.
YDA147 mounts with “Pure pulse direct speaker drive circuit” that
reduces the distortion and the noise mixing the pulse output signal
and drives the speaker directly, and has achieved the low distortion
characteristic and the low noise characteristic of the maximum level
as a digital amplifier of this class.
output 20W (VDDP=14V,RL=4)*2ch.
YDA147 mounts with “Pure pulse direct speaker drive circuit” that
reduces the distortion and the noise mixing the pulse output signal
and drives the speaker directly, and has achieved the low distortion
characteristic and the low noise characteristic of the maximum level
as a digital amplifier of this class.
M8
18
IC304
2CH-MULTI-
PLEXER
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.
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
19
IC701
Series regulator
VHiPQ200WNA-1Y
This IC generates VLSB12V-regurator.
M9
20
IC703
STEP-DOWN-
CONV
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
CONV
VHiMP2259++-1Y
This IC generates B1.5V-regurator.
M9
[AV-TERMINAL Section]
1
IC501
AV-switch
VHiMM1492BJ-1Y
This IC is a 5-input 2-output AV switch controlled by the I2C BUS
developed 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.
developed 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
DRIV
VHiiSL83220-1Y
The Intersil ISL83220E is a 3.0V to 5.5V powered RS-232 transmitter/
receiver which meets ElA/TIA-232 and V.28/V.24 specifications, even
at VCC = 3.0V.
receiver which meets ElA/TIA-232 and V.28/V.24 specifications, even
at VCC = 3.0V.
AV
3
IC504
SERIES-REG
VHiPQ050DNA-1Y
This IC generates B5V-regurator.
AV
4
IC505
STEP-DOWN-
CONV
CONV
VHiMP1415C+-1Y
This IC generates B5.6V-regurator.
AV
5
IC506
OP-AMP *2
VHiNJM4565V-1Y
The NJM456 integrated circuit is a high-gain, wide-bandwidth, dual
low noise operational amplifier capable of driving 20V peak-to-peak
into 400
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.
from SCART1.
AV
[INV/POWER Section]
1
IC7501
INV-CTL
BD9883FV
BD9883FV is IC for DC-AC inverter control.
POW
No.
Ref No.
Name
Part Code
Description
Drawing No.
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