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         2008-03-14 

LC-26SH330, LC-32SH330, LC-42SH330 

 41 

EEPROM init. 

Press 

 

Back LIT Time 

0 Hr 

 

Back Light Max 

26” 32” 42” 

 

0 0 0 

 

Back Light Min 

26” 32” 42” 

 

208 208 208 

 

Language English 

 

Reset Press 

 

OAD Enable 

Yes 

 

VGA EDID 

 

 

 

 

   

 
 
 

LC-26SH330, LC-32SH330, LC-42SH330 

42  

Enter factory mode menu: press MENU + Numeric keys “1999” to enter factory mode. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

         2008-03-14 

LC-26SH330, LC-32SH330, LC-42SH330 

 43 

Sharp model Firmware upgrade SOP by USB flash drives 

1. Equipment and  
warm-up 

1、USB flash drives(need USB2.0) 
2、Upgrade firmware 

 Need 

USB2.0 

2.Upgrade step 

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） 

 

4、Plug the USB flash drives into the USB port 
(service port) on the side I/O port of TV.(Figure 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 

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) 

 

8、Press “MENU”+1999 to enter factory Menu by 
remote control. Then select “2.Main MCU Ver” to 
check upgrade firmware Version(Figure3.6) 

 

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-26SH330, LC-32SH330, LC-42SH330 

44  

CHAPTER 4. 

 

 

 

 

↓ 

 
 

LINE_FILTER_UNIT:          

↓ YES

 

 
 
 
 
 

 

POWER_UNIT                 

↓YES

  

 
 
 

↓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 RV901,L901,C904,L902,C903,C902,RV903, etc. out of 
order? Moreover, whether the short-circuit with the 
circumference circuit is checked. 
POWER_UNIT: 
BD901, FB905, C905, etc. out of order?  
Moreover, whether the short-circuit with the circumference 
circuit is checked. 

Is BD901 (+320V) output? (Set the main power SW to OFF.) 
 
*  When power on/off switch is on  ‧‧‧ About +400V 

Does the PFC circuit operate normally? 
(L906, Q901, D902, D903, IC901 and etc. And, the circuit 
around the protection circuit etc. is checked.) 

NO 

 

Is a voltage of +5V applied to pin (12,13) of connector (CN902)? 
(Set the main power SW to OFF.)

 

Does the switching circuit operate normally? 
Check circuit around the primary side (T901, IC931, Q931, 
ZD931, ZD930, ZD980, ZD981, etc.), the secondary side 
(D935, L980, etc.), the AC_DET circuit (IC932, IC982, etc.), 
and the protection circuit.

 

NO 

 

Are +24V output as for the power on/off switch when it is on?

NO 

 

Does the inverter circuit operate normally? 
Check circuit around the primary side 
(T902,Q951,Q952,IC951, D951,D952, etc.), the secondary 
side (D955, L932, ZD967, IC952, IC953, etc.), the STANDBY 
circuit (Q988, etc.), and the protection circuit.

Similarly, is +12V output as for the power on/off switch when it is 
on?

 

NO 

 

Check +12V circuit of D956, L931, etc.