Power Check Procedure - Daewoo DLX-32D1SMSB Service Manual

9-2. Power Check Procedure.

Check for AC Check for AC
Check for AC Check for AC
Check for AC Check for AC
Cord or SMPS Cord or SMPS
Cord or SMPS Cord or SMPS
Cord or SMPS Cord or SMPS
Yes Yes
Power circuit Power circuit
Power circuit Power circuit
Power circuit Power circuit
normal? normal?
normal? normal?
normal? normal?
Yes Yes
Check 14.318 Check 14.318
Check 14.318 Check 14.318
Check 14.318 Check 14.318
(Y3) oscillator (Y3) oscillator
(Y3) oscillator (Y3) oscillator
(Y3) oscillator (Y3) oscillator
Yes Yes
Reset PW218 Reset PW218
Reset PW218 Reset PW218
Reset PW218 Reset PW218
Reset switch Reset switch
Reset switch Reset switch
Reset switch Reset switch
Yes Yes
I2CBus signal I2CBus signal
I2CBus signal I2CBus signal
I2CBus signal I2CBus signal
normal? normal? normal? normal?
normal? normal?
START START
START START
START START
Re Re - - connect AC connect AC
Re Re - - connect AC connect AC
No No Re-connect AC-Cord Re-connect AC-Cord
or SMPS or SMPS
or SMPS or SMPS
or SMPS or SMPS
Check regulators Check regulators
Check regulators Check regulators
No No Check regulators Check regulators
(U61, U63, U64, U74) (U61, U63, U64, U74)
(U61, U63, U64, U74) (U61, U63, U64, U74)
(U61, U63, U64, U74) (U61, U63, U64, U74)
Check Check Crystal Crystal
Check Check Crystal Crystal
No No
Check Check Crystal Crystal
PW218 PW218
PW218 PW218
PW218 PW218
Check Reset signal Check Reset signal Check Reset signal Check Reset signal
No No
Check Reset signal Check Reset signal
(R307) (R307)
(R307) (R307)
(R307) (R307)
Check Check
Check Check
Check Check
No No
peripheral circuit peripheral circuit
peripheral circuit peripheral circuit
peripheral circuit peripheral circuit
Check con26, 27, 28 Check con26, 27, 28
Check con26, 27, 28 Check con26, 27, 28
Check con26, 27, 28 Check con26, 27, 28
END END
END END
END END
Replace SMPS Replace SMPS
Replace SMPS Replace SMPS
Replace SMPS Replace SMPS
- - Cord Cord
- - Cord Cord
No No
No No
No No
Problem? Problem?
Problem? Problem?
Problem? Problem?
or or
or or
or or
YES YES
NO NO
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