Haier p42a1-ak 부록 매뉴얼

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C: Debug flow-chart 
           
 

AC ON 

 
                                         
                                                       

Power board:                      NO     

                            STANDBY +5V FOUND                               
                                                                                               
                                       
  Initialization:                                                                                                                                                 
 

YES 

                             

               

                      Power failure 

 
 
 
 

 

                                 
                 
 
 
 
 
 
 
 
 
                              Non integrity 
 
 
 
 
GOOD 
 
 
 
 
 
 
 

Whether  alternating  current 
input 

 

    System Reset 

Power On

 

 

+9V +12V +5V   

+2.5V +3.3V +1.8V 

FOUND 

*Repair power board. 

*Replace fuse. 

*Check dc-dc circuit 

  and LDO circuit. 

SvpEx Reset 
Svpex E0 Good 

SvpEx E0 error 

*SvpEx no ack. 
* SvpEx communicate with 

MCU was wrong. 

InitAppHas Accomplish 

PICTURE DISPLAY 

*Vs on   

+60 +190 FOUND 

*

SvpEx  communicate  with 

DDR was wrong.

 

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