9051#SUREOHP#FKHFNLQJ#DQG#PHWKRG#RI#SFE
90504#Wkh#Sduw#Ri#Srzhu#Vrxufh#
No Power ON
The Voltage Of | No | ||
Betweenⓐand ⓑIs | |||
| |||
As Big As 12V? |
| ||
| Yes |
| |
|
| ||
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| |
The Voltage Of | No | ||
Betweenⓒand ⓓ Is | |||
| |||
As Big As 12V? |
| ||
| Yes |
| |
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| ||
|
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| |
Check The Trans
Check The Diode
(D11,D12,D16,D17,D18)
And Condenser(CE3)
The Voltage Of | No | |
Betweenⓔand ⓓ Is | ||
| ||
| ||
As Big As 5V? |
| |
|
|
Exchange IC3(7805) And Check
The Condenser(CE5)
Yes
