Sharp LC55UB30U User Manual

CONFIDENTIAL – DO NOT COPY
Page 9-1
File No. SG-0000361
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Chapter 9 Trouble shooting
COULDN’T TURN ON
Start
Input Power good?
Power BD fail
1. Check JP2 Pin1&2&3(PWR_5V)
2. Check JP2 Pin10&11(PWR_12V)
3. Check JP3 Pin1&2&(PWR_12V )
Log output
END
1. Check Q27 (Reset IC)
2. Check U35 (eMMC)
3. Check DDR
Main BD fail
MEMC is work?
1. Check MEMC DC/DC
a.Check CE1(MEMC_5V)
b.Check L7(MEMC_3.3V)
c.Check CE5(MEMC_Core_1.15V)
d.Check L5(MEMC_1.5V)
e.Check U7 Pin4(MEMC_0.75V)
2. Check MEMC Reset Q11
3. Check MEMC Flash U39
4. Check MEMC DDR
MEMC fail
MB DC/DC is good
1. Check L59 ( 3V3SB)
2. Check L10 (DVDD33)
3. Check R74 be High(12V_POWER ON)
4. Check L31 (DDR Power)
5. Check U20 Pin 4 (SDRAM Terminators Power)
6. Check L26 (DDR Power)
7. Check U21 Pin 4 (SDRAM Terminators Power)
8. Check L12/L13(CPU Power)
9. Check L17/L18/L19/L21 (Core Power)
10.Check L46(VCC1.8V)
Main BD fail

Sharp LC55UB30U Specifications

General

Screen shape	Flat
Response time	- ms
Display diagonal	55 \
Display brightness	- cd/m²
LED backlighting type	Direct-LED
Contrast ratio (dynamic)	4000000:1
Screen format adjustments	16:9
Supported graphics resolutions	3840 x 2160
Motion interpolation technology	AquoMotion 120
3D	-
Tuner type	Analog & digital
Analog signal format system	NTSC
Digital signal format system	ATSC
RMS rated power	20 W
Number of speakers	2
PC in (D-Sub)	No
HDMI ports quantity	4
DVI-D ports quantity	0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Ethernet LAN (RJ-45) ports	1
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Number of OSD languages	3
On Screen Display (OSD) languages	ENG, ESP, FRE
Product color	Black
Panel mounting interface	400 x 400 mm
AC input voltage	120 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	- W
Sustainability certificates	ENERGY STAR
Package depth	151.892 mm
Package width	1445.006 mm
Package height	819.912 mm
Package weight	Weight of the packaged product in gram.

Weight and Dimensions

Depth (with stand)	325.882 mm
Height (with stand)	757.174 mm
Weight (with stand)	20003.42 g
Depth (without stand)	71.882 mm
Width (without stand)	1246.886 mm
Height (without stand)	722.122 mm
Weight (without stand)	19005.52 g