DOWNLOAD Sharp PN-U473 (serv.man2) Service Manual ↓ Size: 5.49 MB | Pages: 99 in PDF or view online for FREE

 

 

 

 

 

SHARP CORPORATION 

!”

 

 

 

 

 

 

 

 

 

 

 

 

  <Solder composition code of lead-free solder> 

Solder composition 

Solder composition code 

Sn-Ag-Cu 

a 

Sn-Ag-Bi 

Sn-Ag-Bi-Cu 

b 

Sn-Zn-Bi z 

Sn-In-Ag-Bi i 

Sn-Cu-Ni n 

Sn-Ag-Sb s 

Bi-Sn-Ag-P 

Bi-Sn-Ag 

p 

 

When repairing a lead-free solder PWB, use lead-free solder thread. Never use conventional lead solder thread, which may cause a 

breakdown or an accident. 

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 exclu-

sive-use soldering iron is recommendable. 

 

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 

capacity is 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 may exceed the heat-resistive temperature of components. Use enough care to separate the soldering iron from the PWB when 

completion of soldering is confirmed. 

Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.   

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 completion of soldering work. 

If the soldering iron tip is discolored black during soldering work, clean and file the tip with steel wool or a fine filer.

 

 

 

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. 

The alphabet following the LF mark shows the kind of lead-free solder. 

PN-U553/U473/U423  OUTLINE OF THE PRODUCT      1 - 1 

 

CHAPTER 1  OUTLINE OF THE PRODUCT 

 

1. Specifications                                                                   

1 – 1.Product Specifications 

 
 

Model PN-U553 

PN-U473 

PN-U423 

LCD component 

55" Class [54-5/8 inch 
(138.8cm) diagonal] 
TFT LCD 

47" Class [46-15/16 
inch (119.3cm) 
diagonal] TFT LCD 

42" Class [42 inch 
(106.7cm) diagonal] 
TFT LCD 

Max. resolution (pixels) 

1920 X 1080 

Max. colors 

Approx. 1.06 billion colors 

Pixel pitch 

0.630 mm (H) × 0.630 mm (V) 

0.542 mm (H) × 0.542 mm (V)

0.485 mm (H) × 0.485 mm (V) 

Viewing angle 

178° right/left/up/down (contrast ratio 

≥ 10) 

Screen active area inch (mm) 

47-5/8 (W) x 26-13/16 (H) 
(1209.6 x 680.4) 

40-15/16 (W) x 23 (H) 
(1039.7 x 584.8) 

36-5/8 (W) x 20-5/8 (H) 
(930.2 x 523.3) 

Computer input signal 

Digital (DVI 1.0 standard-compliant), Analog RGB (0.7 Vp-p) [75 

Ω], 

DisplayPort 1.1 

Sync signal 

Horizontal/vertical separate (TTL: positive/negative) 

Video color system 

NTSC (3.58MHz)/NTSC (4.43MHz)/PAL/PAL-60/SECAM 

Plug and play 

VESA DDC2B 

Power management 

VESA DPMS, DVI DMPM 

Input 
terminals 

PC/AV HDMI 

x 

1 

PC 

Mini D-sub 15 pin, 3 rows x 1 
DisplayPort x 1 
DVI-D 24 pin (HDCP compatible) x 1 

AV 

Component: BNC (Y, Cb/Pb, Cr/Pr) x 1

*1

 

Composite video: BNC x 1

*1

 

Audio 

3.5 mm mini stereo jack x 1 
RCA pin (L/R) x 1 

Serial (RS-232C) 

D-sub 9 pin x 1 

Output 
terminals 

PC 

DVI-D 24 pin (HDCP compatible) x 1 

Audio 

RCA pin (L/R) x 1 

Serial (RS-232C) 

Serial (RS-232C) D-sub 9 pin x 1 

LAN terminal 

10 BASE-T/100 BASE-TX 

Speaker output 

10 W + 10 W 

Power requirement 

AC 100 - 240 V, 1.5 A, 
50/60 Hz 

AC 100 - 240 V, 1.5 A, 
50/60 Hz 

AC 100 - 240 V, 1.3 A, 
50/60 Hz 

Operating temperature

 

*2

 

41°F to 104°F(5°C to 40°C) 

*3

 

32°F to 104°F (0°C to 40°C) 

Operating humidity 

20% to 80% (no condensation) 

Power consumption 
(input signal waiting mode   
/ standby mode

 

*4

) 

130 W (4.5 W / 4.5 W) 

130 W (4.5 W / 4.5 W) 

115 W (4.5 W / 4.5 W) 

Dimensions  
(excluding protrusions)   
inch (mm) 

Approx. 49-3/16 (W) x 
2-1/4 (D) x 28-3/8 (H) 
(1250 x 57 x 721) 

Approx. 42-5/8 (W) x 

2-3/16 (D) x 24-11/16 (H) 

(1083 x 55 x 627) 

Approx. 38-5/16 (W) x 

2-1/4 (D) x 22-1/4 (H) 

(973 x 57 x 565) 

Weight lbs. (kg) 

Approx. 55.2 (25) 

Approx. 41.9 (19) 

Approx. 35.3 (16) 

 

*1    Cannot be used simultaneously. 

*2    Temperature condition may change when using the monitor together with the optional equipments recommended by SHARP. In such 

cases, please check the temperature condition specified by the optional equipments. 

*3    Use of the monitors in temperatures below 50°F (10°C) might result in inconsistent image quality that, depending on the viewing angle, 

might be noticeable along the edges of the screen. Please note that this is not a malfunction and does not affect monitor operation. 

*4    When STANDBY MODE is set to STANDARD. When STANDBY MODE is set to LOW POWER: 0.5 W 

PN-U553/U473/U423  OUTLINE OF THE PRODUCT      1 - 2 

 

Unit : inch [mm] 

PN-U553                                                                                                                                                                                                   

   

 

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 (10 mm). Loose mounting may cause the product to fall, resulting in 

serious personal injuries as well as damage to the product. The screw and hole should come together with over 5/16 inch 

(8 mm) 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.