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LG EC970W - No 12 VA (Capstan); No 12 V (Hi-Fi, Buffer)

LG EC970W
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3-5
Is the D109 normal? Replace the D109.
Check 12VA Line of the Main PCB short.
YES
YES
No 12VA.
Does 5.3VA work normally? Check whether 5.3VA is out of order.
YES
NO
NO
7. Power Circuit(SMPS)
(2) No 12VA.(Capstan)
(3) No 12V (Hi-Fi, Buffer)
Is Voltage(about 13V) put into the
Q152(B)?
Check or Replace the Q152.
YES
YES
No 12VA.
Is Vcc(about 12V) put into the Q152(E)? Replace the Peripheral Circuitry of ZD152.
YES
NO

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