Sharp PN-T322B User manual

CODE : 00Z
SERVICE MANUAL
CONTENTS
Parts marked with "!" are important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
PNT321SME2
LCD MONITOR/
TOUCH-PANEL-
INTEGRATED DISPLAY
PN-T321
MODEL PN-T322B
■LEAD-FREE SOLDER
CHAPTER 1. OUTLINE OF THE PRODUCT . . . . . . . . . . . . . . . . . 1 - 1
CHAPTER 2. INSTALLATION, ADJUSTMENT, SETTING. . . . . . . 2 - 1
CHAPTER 3. CONTROLLING THE MONITOR WITH A PC . . . . . 3 - 1
CHAPTER 4. IMPORTANT INFORMATION FOR SERVICING
THE DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
CHAPTER 5. SERVICE MENU/VARIOUS SETTING TOOL
OPERATING PROCEDURES . . . . . . . . . . . . . . . . . 5 - 1
CHAPTER 6. FIRMWARE UPDATA PROCEDURES/EDID
WRITING PROCEDURES . . . . . . . . . . . . . . . . . . . . 6 - 1
CHAPTER 7. DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . 7 - 1
CHAPTER 8. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 8 - 1
CHAPTER 9. HARDWARE DESCRIPTIONS. . . . . . . . . . . . . . . . . 9 - 1

i
CONTENTS
CHAPTER 1.
OUTLINE OF THE PRODUCT
1 SPECIFICATIONS 1 - 1
2 PART NAMES AND FUNCTION 1 - 6
3 SCREEN DISPLAY 1 - 11
CHAPTER 2.
INSTALLATION, ADJUSTMENT, SETTING
1 INSTALLATION 2 - 1
2 ADJUSTMENT 2 - 5
3 SETTING UP THE PC (TOUCH PANEL DRIVER) 2 - 10
CHAPTER 3.
CONTROLLING THE MONITOR WITH A PC
1 RS-232C 3 - 1
CHAPTER 4.
IMPORTANT INFORMATION FOR SERVICING
THE DISPLAY
1 I/F PWB, LCD MODULE, PARTS REPLACEMENT
PROCEDURES 4 - 1
CHAPTER 5.
SERVICE MENU/VARIOUS SETTING TOOL
OPERATING PROCEDURES
1 OPERATING PRCEDURES 5 - 1
2AGING 5-2
3 FACTORY RESET 5 - 2
4 EDID WRITE PROTECT 5 - 2
5 NTSC SETUP LEVEL 5 - 3
6 INSTRUCTIONS FOR LAUNCHER TOOL 5 - 3
7 SERIAL NUMBER WRITING PROCEDURES 5 - 4
8 USAGE TIME SETTING PROCEDURE 5 - 5
9 TEMPERATURE MONITOR SETTING PROCE-
DURES 5 - 6
10 PERATING PROCEDURES Of TOUCH PANEL
INSPECTION TOOL 5 - 8
CHAPTER 6.
FIRMWARE UPDATA PROCEDURES/EDID WRIT-
ING PROCEDURES
1 MAIN FIRMWARE UPDATE PROCEDURE 6 - 1
2 EDID WRITING PROCEDURES 6 - 2
CHAPTER 7.
DISASSEMBLY AND ASSEMBLY
1 PWB AND WIRING DIAGRAM 7 - 1
2 REAR COVER 7 - 3
3 SPEAKER UNIT 7 - 4
4 LED DRIVER PWB 7 - 5
5 INLET HARNESS/AC SWITCH 7 - 6
6 POWER SUPPLY PWB 7 - 8
7 TEMPERATURE SENSOR PWB 7 - 8
8 I/F PWB 7 - 9
9 LCD MODULE 7 - 13
10 KEY PWB 7 - 15
11 TOUCH PANEL ASSEMBLY (PN-T322B) 7 - 16
CHAPTER 8.
TROUBLESHOOTING
1 THE POWER IS NOT TURNED ON
(THE LED DOES NOT LIGHT UP) 8 - 1
2 THE REMOTE CONTROLLER DOES NOT WORK 8 - 2
3 THE DISPLAY DOES NOT APPEAR
(DISPLAY ABNORMALITY) 8 - 2
4 THE BACKLIGHT DOES NOT LIGHT UP 8 - 3
5 NO SOUND IS GENERATED/ REPRODUCED
SOUND ABNORMALITY 8 - 3
6 RS-232C CONTROL DOES NOT WORK 8 - 3
7 NO RESPONSE FOR TOUCHING 8 - 4
8 THE TOUCH POSITION IS SHIFTED 8 - 5
9 THE TOUCH POSITION IS SHIFTED EVEN
AFTER CALIBRATION 8 - 5
10 MULTI-TOUCH IS UNABLE 8 - 6

ii
CHAPTER 9.
HARDWARE DESCRIPTIONS
1 SYSTEM DESCRIPTION 9 - 1
2 FUNCTIONS 9 - 3
3 PERFORMANCE SPECIFICATIONS 9 - 3
4 BLOCK DIAGRAM 9 - 4
5 TOUCH PANEL (PN-T322B) 9 - 5

ii
The PWB’ s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean
“Lead-Free” solder. Thealphabet following the LF mark shows the kind of lead-free solder.
If the soldering iron tip is discolored black during soldering work, cleanand file the tip with steel wool or a fine filer.
If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron
tip after com-pletion of soldering work.
Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.
Since the melting point of lead-free solder is about 220˚C, which is about 40˚C higher than that of conventional lead solder, and its
soldering capacityis inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may
cause land separation or mayexceed the heat-resistive temperature of components. Use enough care to separate the soldering iron
from the PWB when completion of soldering isconfirmed.
(2) NOTE FOR SOLDERING WORK
(1) NOTE FOR THE USE OF LEAD-FREE SOLDER THREAD
Since the melting point of lead-free solder thread is about 40˚C higher than that of conventional lead solder thread, the use of the
exclusive-use solder-ing iron is recommendable.
When repairing a lead-free solder PWB, use lead-free solder thread. Never use conventional lead solder thread, which may cause a
breakdown or anaccident.
Example:
LEAD-FREE SOLDER
The battery supplied with this product contains traces of Lead.
For EU:
For Switzerland:
The used battery is to be returned to the selling point.
For other non-EU countries:
Please contact your local authority for correct method of disposal of the used battery.
“BATTERY DISPOSAL”
U.S.A.ANDCANADAONLY
The crossed-out wheeled bin implies that used batteries should not be put to the general householdwaste!
There is a separate collection system for used batteries, to allow proper treatment and recycling in accordance with
legislation. Please contact your local authority for details on the collection and recycling schemes.
THIS PRODUCT CONTAINS A LITHIUM PRIMARY (MANGANESS DIOXIDE) MEMORY BACK-UP BATTERY THAT MUST BE
DISPOSED OF PROPERLY. PLEASE CONTACT YOUR LOCAL SHARP DEALER OR AUTHORIZED SERVICE REPRESENTATIVE
FOR ASSISTANCE IN DISPOSING OF THIS BATTERY.
<Solder composition code of lead-free solder>
Bi-Sn-Ag
b
p
Solder composition Solder composition code
a
Sn-Ag-Cu
Sn-Ag-Bi
Sn-Ag-Bi-Cu
z
Sn-Zn-Bi
i
Sn-In-Ag-Bi
n
Sn-Cu-Ni
s
Sn-Ag-Sb
Bi-Sn-Ag-P
Lead-Free
Solder composition
code (Refer to the
table at the right.)
a
5mm
“ CAUTION ”
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
CAUTION
DOUBLE POLE/NEUTRAL FUSING

PN-T321/T322B OUTLINE OF THE PRODUCT
1 – 1
CHAPTER 1. OUTLINE OF THE PRODUCT
1. SPECIFICATIONS
1 - 1. OUTLINE
Model PN-T321 PN-T322B
LCD component 32" Class [31-1/2 inch (80 cm) diagonal] TFT LCD
Max. resolution (pixels) 1366 x 768
Max. colors Approx. 16.77 million colors
Pixel pitch 0.511mm (H) x 0.511mm (V)
Viewing angle 176° right/left/up/down (contrast ratio>10)
Screen active area inch (mm) 27-7/16 x 15-7/16 (697.7 x 392.3)
Computer input signal
nDigital (DVI 1.0 standard-compliant)
nAnalog RGB (0.7 Vp-p) [75Ω]
Sync signal
nHorizontal/vertical separate (TTL: positive/negative)
nSync-on-green
nComposite sync (TTL: positive/negative)
Video color system
nNTSC (3.58MHz)
nNTSC (4.43MHz)
nPAL
nPAL-60
nSECAM
Plug and play VESA DDC2B
Power management
nVESA DPMS
nDVI DMPM
Input terminals
Digital HDMI x 1
DVI-D 24 pin (HDCP compatible) x 1
Analog Mini D-SUB 15 pin, 3 rows x 1
Composite video RCA pin x 1 *1
Component RCA pin (Y, Cb/Pb, Cr/Pr) x 1 *2
Audio 3.5mm mini stereo jack x 1
RCA pin (L/R) x 1 *1
Serial (RS-232C) D-SUB 9 pin x 1
USB flash drive x 1 (for slideshow)
Output terminal Audio 3.5mm mini stereo jack x 1
Speaker output 8 W + 8 W
Touch Panel
Detection method --- Infrared camera method
Detection area inch (mm) --- 27 x 15 (685.7 x 380.3)
PC connector --- USB (1.1 compliant)
Power supply --- Supplied from USB
Position accuracy inch (mm) --- ±1/4 (±6)
Power requirement AC 100 V - 240 V, 50/60 Hz
Operating temperature *332° F to 104° F (0°C to 40°C) 41° F to 95° F (5°C to 35°C)
Operating humidity 20% to 80% (no condensation)
Power consumption
(input signal waiting mode / standby mode)
82 W
(0.9 W *4/0.9 W)
Dimensions (excluding protrusions) inch (mm) Approx. 30-1/4 (W) x 1-15/16 (D) x
18-1/8 (H) (769 x 49.1 x 461)
Approx. 30-1/4 (W) x 2-7/16 (D) x
18-1/8 (H) (769 x 62 x 461)
Weight lbs. (kg) Approx. 17.2 (7.8) Approx. 24.3 (11)

CHAPTER 1. OUTLINE OF THE PRODUCT
PN-T321/T322B OUTLINE OF THE PRODUCT
1 – 2
*1 Uses the provided conversion cable (for AV video).
*2 Uses the provided conversion cable (for AV component).
*3 Temperature condition may change when using the display together with the optional equipments recommended by SHARP.
In such cases, please check the temperature condition specified by the optional equipments.
*4 D-SUB input (factory default setting)
As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement
without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from
these values in individual units.
1 - 2. DIMENSIONAL DRAWINGS
*Note that the values shown are approximate values.
*1 When mounting the monitor, be sure to use a wall-mount bracket that complies with the VESA-compatible mounting method.
SHARP recommends using M6 screws and tighten the screws.
Note that screw hole depth of the monitor is 3/8 inch (10mm). Loose mounting may cause the product to fall, resulting in serious personal inju-
ries as well as damage to the product. The screw and hole should come together with over 5/16 inch (8mm) length of thread. Use a bracket
which has been approved for UL1678 standard, and which can endure at least 4 times or more the weight of the monitor.
18-13/16 [478]
30-1/4 [769]7-7/8 [200]
7-7/8 [200]
Unit: inch [mm]
VESA holes *1
Opening width (27-5/8 [701])
18-1/8 [461]
Opening height (15-9/16 [396])
1-1/2
[38]
2-7/16
[62]
1-15/16
[49.1]
1
[25.3]
PN-T322B PN-T321

CHAPTER 1. OUTLINE OF THE PRODUCT
PN-T321/T322B OUTLINE OF THE PRODUCT
1 – 3
1 - 3. COMPATIBLE SIGNAL TIMING (PC)
*1 Displays a reduced image, except in Dot by Dot. In Dot by Dot, the image will be cut down to panel size then displayed.
*2 Displays as an AV signal (1280 x 720p).
*3 Displays as an AV signal (1920 x 1080p).
*All are compliant only with non-interlaced.
*Depending on the connected PC, images may not be displayed properly even if the compatible signal described above is input.
*The frequency values for the Sun are reference values.
Screen resolution Hsync Vsync Dot frequency Digital Analog
DVI-D HDMI
VESA 640 x 480 31.5kHz 60Hz 25.175MHz Yes Yes Yes
37.9kHz 72Hz 31.5MHz Yes Yes Yes
37.5kHz 75Hz 31.5MHz Yes Yes Yes
800 x 600 35.1kHz 56Hz 36.0MHz --- --- Yes
37.9kHz 60Hz 40.0MHz Yes Yes Yes
48.1kHz 72Hz 50.0MHz Yes Yes Yes
46.9kHz 75Hz 49.5MHz Yes Yes Yes
848 x 480 31.0kHz 60Hz 33.75MHz Yes --- Yes
1024 x 768 48.4kHz 60Hz 65.0MHz Yes Yes Yes
56.5kHz 70Hz 75.0MHz Yes Yes Yes
60.0kHz 75Hz 78.75MHz Yes Yes Yes
1152 x 864 *167.5kHz 75Hz 108.0MHz Yes Yes Yes
1280 x 768 47.8kHz 60Hz 79.5MHz Yes --- Yes
60.3kHz 75Hz 102.25MHz Yes --- Yes
1280 x 800 *149.7kHz 60Hz 83.5MHz Yes Yes Yes
1280 x 960 *160.0kHz 60Hz 108.0MHz Yes Yes Yes
1280 x 1024 *164.0kHz 60Hz 108.0MHz Yes Yes Yes
80.0kHz 75Hz 135.0MHz Yes Yes Yes
1360 x 768 47.7kHz 60Hz 85.5MHz Yes Yes Yes
1400 x 1050 *165.3kHz 60Hz 121.75MHz Yes Yes Yes
1440 x 900 *155.9kHz 60Hz 106.5MHz Yes --- Yes
1600 x 1200 *175.0kHz 60Hz 162.0MHz Yes Yes Yes
1680 x 1050 *165.3kHz 60Hz 146.25MHz Yes Yes Yes
Wide 1280 x 720 44.7kHz 60Hz 74.4MHz Yes *2Ye s *2Ye s
1366 x 768 47.7kHz 60Hz 85.383MHz Yes Yes Yes
1920 x 1080 *166.3kHz 60Hz 148.5MHz Yes Yes Yes
67.5kHz 60Hz 148.5MHz Yes *3Ye s *3Ye s
US TEXT 720 x 400 31.5kHz 70Hz 28.3MHz Yes Yes Yes
Sun 1024 x 768 48.3kHz 60Hz 64.13MHz --- --- Yes
53.6kHz 66Hz 70.4MHz --- --- Yes
56.6kHz 70Hz 74.25MHz --- --- Yes
1152 x 900 *161.8kHz 66Hz 94.88MHz --- --- Yes
71.8kHz 76.2Hz 108.23MHz --- --- Yes
1280 x 1024 *171.7kHz 67.2Hz 117.01MHz --- --- Yes
81.1kHz 76Hz 134.99MHz --- --- Yes
1600 x 1000 *168.6kHz 66Hz 135.76MHz --- --- Yes

CHAPTER 1. OUTLINE OF THE PRODUCT
PN-T321/T322B OUTLINE OF THE PRODUCT
1 – 4
1 - 4. COMPATIBLE SIGNAL TIMING (AV)
*1 Displays a reduced image, except in Dot by Dot. In Dot by Dot, the image will be cut down to panel size then displayed.
1 - 5. POWER MANAGEMENT
This monitor conforms to VESA DPMS and DVI DMPM. Both your video
card and computer must support the same standard in order for the
monitor’s power management function to work.
DPMS: DISPLAY POWER MANAGEMENT SIGNALING
DMPM: DIGITAL MONITOR POWER MANAGEMENT
1 - 6. DDC (PLUG AND PLAY)
The monitor supports the VESA DDC (Display Data Channel) standard.
DDC is a signal standard for plug and play between monitors and com-
puters. Information about resolution and other parameters is exchanged
between the two. This function can be used if the computer supports
DDC and it has been configured to detect plug-and-play monitors.
There are several types of DDC, depending on the communication
method used. This monitor supports DDC2B.
1 - 7. SUPPLIED ACCESSORIES
nLiquid Crystal Display Monitor: 1
nRemote control unit: 1 (Battery preinstalled)
nCable clamp: 1
nPower cord: 1
nConversion cable (for AV component): 1 (green/ blue/ red)
nConversion cable (for AV video): 1 (red/ white/ yellow)
nCD-ROM (Utility Disk for Windows): 1
*Sharp Corporation holds authorship rights to the Utility Disk pro-
gram. Do not reproduce it without permission.
nSetup Manual: 1
nVertical sticker (Operation panel): 1
nVertical sticker (Logo): 1
nUSB flash drive cover: 1
nUSB flash drive cover screw (+): 1 (PN-T321)
nUSB flash drive cover screw (-): 1 (PN-T322B)
nCover Sharp logo: 1
Place this sticker onto the SHARP logo to cover the logo.
nAir blower: 1 (PN-T322B)
*For environmental protection!
Do not dispose of batteries in household waste.
Follow the disposal instructions for your area.
Screen resolution Frequency DVI-D HDMI Component
1920 x 1080p *124Hz --- Yes ---
50Hz Yes Yes Yes
59.94Hz Yes Yes Yes
60Hz Yes Yes Yes
1920 x 1080i *150Hz Yes Yes Yes
59.94Hz Yes Yes Yes
60Hz Yes Yes Yes
1280 x 720p 50Hz Yes Yes Yes
59.94Hz Yes Yes Yes
60Hz Yes Yes Yes
720 x 576p 50Hz Yes Yes Yes
720 x 480p 59.94Hz Yes Yes Yes
60Hz Yes Yes Yes
720 (1440) x 576 50Hz --- Yes Yes
720 (1440) x 480i 59.94Hz --- Yes Yes
60Hz --- Yes Yes
DPMS Screen Power
consumption Hsync Vsync
ON STATE Display 82W Yes Yes
STANDBY No
display
0.9W No Yes
SUSPEND Yes No
OFF STATE No No
DMPM Screen Power
consumption
Monitor ON Display 82W
Active OFF No display 10W

CHAPTER 1. OUTLINE OF THE PRODUCT
PN-T321/T322B OUTLINE OF THE PRODUCT
1 – 5
1 - 8. LAYOUT OF TERMINAL PINS
■PC/AV DVI-D INPUT TERMINAL PINS
■RS-232C INPUT TERMINAL PINS
■PC D-SUB INPUT TERMINAL PINS
■PC/AV HDMI INPUT TERMINAL PINS
No. Function No. Function
1 TMDS data 2- 13 N.C.
2 TMDS data 2+ 14 +5V
3 TMDS data 2/4 shield 15 GND
4 N.C. 16 Hot-plug detection
5 N.C. 17 TMDS data 0-
6 DDC clock 18 TMDS data 0+
7 DDC data 19 TMDS data 0/5 shield
8 N.C. 20 N.C.
9 TMDS data 1- 21 N.C.
10 TMDS data 1+ 22 TMDS clock shield
11 TMDS data 1/3 shield 23 TMDS clock+
12 N.C. 24 TMDS clock-
No. Function No. Function
1N.C. 6N.C.
2 Transmitted data 7 N.C.
3 Received data 8 N.C.
4N.C. 9N.C.
5GND
(DVI-D 24 PIN)
(D-SUB 9 PIN)
No. Function No. Function
1 Red video signal input 9 +5V
2 Green video signal input 10 GND
3 Blue video signal input 11 N.C.
4 N.C. 12 DDC data
5 GND 13 Hsync signal input
6 GND for red video signal 14 Vsync signal input
7 GND for green video signal 15 DDC clock
8 GND for blue video signal
No. Function No. Function
1 TMDS data 2+ 11 TMDS clock shield
2 TMDS data 2 shield 12 TMDS clock-
3 TMDS data 2- 13 N.C.
4 TMDS data 1+ 14 N.C.
5 TMDS data 1 shield 15 SCL
6 TMDS data 1- 16 SDA
7 TMDS data 0+ 17 DDC/CEC GND
8 TMDS data 0 shield 18 +5V
9 TMDS data 0- 19 Hot-plug detection
10 TMDS clock+
(Mini D-SUB 15 PIN)
(HDMI CONNECTOR)
TM

CHAPTER 1. OUTLINE OF THE PRODUCT
PN-T321/T322B OUTLINE OF THE PRODUCT
1 – 6
2. PART NAMES AND FUNCTION
2 - 1. DISPLAY
■FRONT VIEW
MEMO
nUse a pointed object such as a pen tip to press the switches at
the operation panel.
REFERENCE CHART OF POWER LAMP LIGHTING STATUS
23 45
1
1LCD panel
2Power LED
3Power switch
4Input switch
5Remote control sensor
Lighting Status Status Description
Green lamp is lit. In the power “ON” state
Green lamp is flashing. In the input signal waiting mode (When DVI-D or D-SUB)
Orange lamp is lit. In the power “OFF” state (Standby status=The power is turned off by the remote controller.)
If the Power switch is pressed when the display is in the input signal waiting mode (green lamp flashing), it also goes
into the standby status.
Lamp is flashing in
red3green3red3green
at 1 second intervals.
(Temperature
abnomaly)
The message “TEMPERATURE” blinks at 5-second intervals in the corner of the screen (Lower left corner at the fac-
tory default), and it indicates an abnormality in the internal temperature.
*It operates only when “FUNCTION” - “TEMPERATURE ALERT” is set to “OSD&LED” or “LED”.
When it is “OFF”, it does not blink. (Factory default: “LED”)
*Even when “FUNCTION” - “LED” is set to “OFF”, the setting of “TEMPERATURE ALERT” takes effect.
At the same time, the brightness is forcefully reduced by the internal processing of the LCD monitor.
If it is left in the above state and the internal temperature increases further, the monitor shuts off automatically. (Goes
into the standby mode.)
By cycling the main power or turning off and on the power by the remote controller, the screen can be restored to its original
state temporarily. However, it goes back to the standby status soon unless the cause of the temperature increase is removed.