55
Diagnostics
12-1) When power is not supplied
1.Check if power is supplied at Concent and Power Cord is connected properly before repair
2.Check by referring to the followings.
NO
NO
NO
NO
NO
Pre-Check
Check assembly of
wires and do repairing
Is Power of
primery DC -TRANS applied?
(Power/
Voltage
)
Is Power of
secondary DC -TRANS applied?
(PCB CN10 ~AC16V)
Is 12V terminal
normal? (PCB C105 both terminal
Voltage)
Is 5V terminal
normal? (PCB C104 both termind
Voltage)
Are wire
connections of PANEL
PCB normal?
Start
YES
Change DC-TRANS
Check PCB.REG1
(7812)/Change PCB
YES
Check PCB.REG2
(7805) / Change PCB
YES
Change the fridge Set
YES
YES
Recheck/Change MAIN PCB ASS'Y
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