Specifications

15
8-2 . Problem Checking And Method Of PCB
8-2-1 The Part Of Power Source
YES
YES
NO
YES
NO
YES
NO Power On
Check The Trans
Check The Diode(D15-D19)
And Condenser(CE5)
Exchange TR7(7805) And
Check The
Condenser(CE3)
The Voltage Of
Between
ⓐ
and
ⓑ
Is
As Big As 12V?
7805
D15,16,18,19
D17
CE5
CE3
TR7
ⓐ
ⓑ
ⓒ
ⓓ
ⓔ
60
61
62
30
63
TRANS
2200UF
470UF
The Voltage Of
Between
ⓒ
and
ⓓ
Is
As Big As 12V?
The Voltage Of
Between
ⓔ
and
ⓓ
Is
As Big As 5V?
NO