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:'13/Dec
CHAPTER 8. HARDWARE DESCRIPTIONS
1. CIRCUIT DESCRIPTIONS
1-1. SYSTEM COMPONENT
・This machine realizes the super high-definition monitor (resolution 3840x2160(QFHD)).
・This machine adopts IGZO/IPS panel whose screen size is
・It is possible to adjust the color by OSD and the adjustment values are saved in the embedded EEPROM.
・ The input interface is composed of Displayport, HDMI, the audio stereo jack and RS-232C stereo jack. And, the output interface has one
audio stereo jack.
・This machine adopts the LED backlights and realize the thinner monitor.
1-2. UNIT COMPOSITION
The display is composed of the LCD unit (including the LCD-TCON, LED PWB x4), the LED Driver PWB, the LED PWB x4, the main PWB,
the key PWB, the LED indicator PWB, the thermistor PWB, the DC-DC PWBN and the AC adaptor.
1-3. LCD UNIT
No
Item
1
Screen size
(Diagonal)
Max. resolution
2
Max. colors
3
Pixel pitch
4
5
Max. brightness
6
Video color system
7
Contrast ratio
8
Viewing angle
9
Backlight
10
Backlight life
11
Screen uniformity
12
USB
13
Touch panel
1-4．I/F PWB Unit
■ OPERATIONAL DESWCRIPTION
・Regarding the video signal, it is possible to receive DisplayPort signal and HDMI signal.
・DisplayPort signal is input from CN201.
・HDMI signal is input from CN302 or CN1401. Or, HDMI signal is input from both CN302 and CN1401.
・The input video signal is handled by STDP9320 x 2（IC200,IC1400, is transferred into LVDS signal and is output to from CN901 to
CN2202.
・The audio signal is input from the line input of CN801 or the audio signal mixed with DisplayPort signal or HDMI signal. These signals
are handled by STDP9320 (IC200) and activated by the audio amplifier (CN702).
・The audio signal is output from the audio amplifier (IC702) to Headphone terminal (CN701) or the embedded speakerterminal (CN702).
・The control and OSD of USB, RS-232C, keys, LED, photo sensors and thermistor are handled by ARM microcomputer (IC2500) and
CPLD(IC2400).
・The power is input from the power connector (CN3200) of DC-DC PWB. Then, the voltage is generated on DC/DC block of PWB and
supplied to ICs of each block of PWB.
・The sequence control of the power for each block is controlled by CPLD (IC2400).
PN-K321/321H
32" Class [31-35/64 inch (80.1cm) diagonal] TFT LCD
3,840 x 2,160
Approx. 1.06 billion colors
140ppi
350cd/㎡
NTSC 72%
3,000：1
176°up/down, 176°right/left
LED backlight (Top/Bottom edge)
50,000(landscape, horizontal installation)
80%
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(Firmware rewrite only pin × 1)
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PN-K321/K322B
HARDWARE DESCRIPTIONS
32" Class (31-35/64 inch (80.1cm) diagonal).
300cd/㎡
(CR 10)
≧
Touch panel only (miniB terminal)
Capacitive touch panel (10 point touch)
PN-K322B
8 - 1
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