DOWNLOAD Sharp LC-37LE320E Service Manual ↓ Size: 40.22 MB | Pages: 127 in PDF or view online for FREE

Model
LC-37LE320E
Pages
127
Size
40.22 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-37le320e.pdf
Date

Sharp LC-37LE320E Service Manual ▷ View online

         2008-03-14 
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320 
 49 
 
 
 
 
 
 
 
 
 
 
Pattern-1 
Alignment method: 
Initial Set-up:  
1. Select source as “PC”. 
2. Set Contrast = 58 (Sharp) and Brightness=100 (Sharp) , at normal menu mode. 
3. Apply “5 white block”(pattern-1) pattern by VGA pattern generator.                        
4. Enter factory mode menu: press MENU + Numeric keys “1999” (factory mode menu).  
 
Alignment:  
At factory mode menu, select AUTO_COLOR item. Then press “OK” key to adjust ADC_GAIN_R, ADC_GAIN_G, ADC_GAIN_B and 
ADC_OFFSET_R, ADC_OFFSET_G, ADC_OFFSET_B. Then store those values to NVM. 
                                    Set Contrast = 100 (Sharp) and Brightness=100 (Sharp) 
 
 
           Check color temperature specification with PC mode. 
Color temperature Normal/Warm/Cool (x, y) co-ordinates specification: 
   
                                  
 
                                                      
    Table 
5: 
Reading 
with 
Knoica Minolta CS-200
Note:  
1. Use 
Knoica Minolta CS-200
. for color coordinates and luminance check. 
2. For suitable mass production at factory, colour analyzers CA-210 can be applied. But, befor measureing ,all CA-210 should be coordinates 
and proofread with a Charoma Meter (CS-200) or equivalent instrument and a reference TV set. 
3. Check the luminance in the center of the screen with 100% White. And to Brightness control at 100; Contrast control at 100  
Luminance  
> 200 cd/m
2
 (Typ.) [ For LC-19LE320E/RU only at color temp.- *warm mode ] 
 
 
> 200 cd/m
2
 (Typ.) [ For LC-22LE320E/RU only at color temp.-*warm mode ] 
 
 
> 360 cd/m
(Typ.) [ For LC-26LE320E/RU only at color temp.- cool mode ] 
 
 
> 360 cd/m
2
 (Typ.) [ For LC-32LE320E/RU only at color temp.- cool mode ] 
 
 
> 360 cd/m2 (Typ.) [ For LC-37LE320E/RU only at color temp.- cool mode ] 
 
 
> 360 cd/m2 (Typ.) [ For LC-42LE320E/RU only at color temp.- cool mode ] 
 
 
 
Picture Mode 
Cool (12000K) 
0.272±0.010 
0.277±0.010 
Normal (9000K) 
0.289±0.015 
0.291±0.015 
Warm (6500K) 
0.314±0.015 
0.319±0.015 
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320 
50  
[2] SERVICE MODE 
Enter factory mode menu: press MENU + Numeric keys “1999” to enter factory mode. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
         2008-03-14 
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320 
 51 
 [3] SOFTWARE UPGRADE PROCEDURE 
 
 
 
 
 
Sharp model Firmware upgrade SOP by USB flash drives 
Flow chart 
Step 
Photo 
Remark 
1. Equipment and  
warm-up 
1、USB flash drives(need USB2.0) 
2、Upgrade firmware 
 Need 
USB2.0 
1、 Copy the firmware from your computer to the 
USB flash drives. 
 
 
2、Change firmware name to upgrade.pkg 
 
Please check the firmware name 
again before rework. 
3、AC ON(Figure3.1、Figure3.2) 
 
(3.1) 
 
(3.2) 
 
4、Plug the USB flash drives into the USB port 
(service port) on the side I/O port of TV.(Figure 3.3) 
   
 
(3.3) 
 
5、DC ON(You can use Keypad or Remote control 
power key) 
 
 
6、When display Upgrade MENU (Figure 3.4), 
select “Yes”  by remote control to implement update 
firmware 
(3.4) 
If there is no display upgrade 
MENU,can you DC ON/OFF once 
more 
 
7、When finished upgrade 100%,Please remove the 
USB flash drives then press “Power” to renew the 
TV(Figure3.5) 
(3.5) 
 
8、Press “MENU”+1999 to enter factory Menu by 
remote control. Then select “2.Main MCU Ver” to 
check upgrade firmware Version(Figure3.6) 
(3.6) 
 
2.Upgrade step 
9、Implement “Exit” Icon to exit factory Menu . After 
exit factory mode, pls power off then turn off the AC 
power. congratulation, upgrade step is finish. 
 
 
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320 
52  
CHAPTER 4. 
TROUBLESHOOTING TABLE
 
 
[1] 19” TROUBLESHOOTING TABLE 
 
Power unit operation check. 
↓ 
 
 
LINE_FILTER_UNIT:           
↓ YES
 
 
 
 
 
 
 
POWER_UNIT                  
↓YES
  
 
 
 
↓YES 
 
 
 
 
↓YES 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Are the power cord and harness in the unit properly connected? 
NO 
Connect the power cord and harness properly, and turn on the 
power.
Is F901 F902 normal? 
NO 
 
LINE_FILTER_UNIT: 
Isn't C908, RV901, L902, C900, C901, etc. out of order? 
Moreover, whether the short-circuit with the circumference circuit 
is checked. 
Is BD901 (+320V) output?  
 
 
Does the circuit operate normally? 
Check circuit around (BD901, Q903, ZD906, IC901, D901 etc ). 
 
NO 
 
Is a voltage of +5.3V applied to pin (4,5) of connector (CN902)? 
Does the switching circuit operate normally? 
Check circuit around the primary side (T901, ZD906, D901, 
D903, Q903, D904, IC901, Q901, D904 etc.), the secondary side 
(D905, L904, C921 etc.), the DC_DET circuit (IC902, ZD903, 
IC903, IC901, etc.), and the protection circuit.
NO 
 
Is a voltage of +16V applied to pin (9,10) of connector (CN902)? 
 
NO 
 
Does the inverter circuit operate normally? 
Check circuit around (D902, L903, C914, Q908, ZD902 etc.), and 
the protection circuit.
 
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