Daewoo DV-K580NZ-T User Manual
34
3. VIDEO CIRCUIT
A. EE MODE N.G.
TROUBLESHOOTING FLOW CHART
Is VIDEO signal input
Into pin 2 of RL 902?
Is E9V supplied at
Pin 1 of RL 902?
Check terminal.
NO
YES
Check EVRE 9V.
NO
Is signal output from
pin 8 of RL 902?
YES
Check pin 3 input signal
of RL902.
NO
Is signal input into
pin 18 of IC 001?
YES
Is signal output from pin 3
of IC 002?
Is signal input into pin 1
of IC 002?
NO
Is signal input into
pin 37 of IC 301?
YES
Check IC 001.
NO
Is signal output from
pin 34 of IC 301?
YES
Check pin 35 Vcc of IC 301.
NO
Check Power Circuit.
NO
NO
Check pin 5 EE(L)/PB(H)
of IC 301.
YES
Check pin 44 of IC 601.
NO
Is signal input into
Base of Q317?
YES
Check PATTERN.
NO
Is signal output from
TJ 396?
YES
Check Q317.
NO
Is signal output into
pin 4 of RL 902?
YES
Check PATTERN.
NO
Is signal output from
pin 3 of RL 902?
YES
Check RL 902.
NO
Is signal output into
pin 8 of P902?
YES
Check PATTERN.
NO
TERMINAL OUT.
YES