3. GU-3572 VIDEO PWB
(1) Progressive output does not outputed.
Check Power Supply Voltages.
+3.3V_D3, +5V_D1, ± 5V_V1
+3.3V_V2, +2.5V_V1, +1.8V_D3
O.K.
Check Oscillation circuit.
[IC-703]: (MC504) Set-up
•
20MHz Oscillation.
RESET "H"?
O.K.
Check IC701.
RESET "H"?
O.K.
Check IC704.
RESET "H"?
O.K.
Check IC601.
RESET "H"?
O.K.
(2) Interlace output does not outputed.
Check IC704.
RESET "H"?
Check soldering.
N.G.
[CY331]
•
[IC712] -- [IC714]
•
N.G.
Check soldering.
[X701]
•
N.G.
Check soldering.
[IC701]
•
N.G.
Check soldering.
[IC704]
•
N.G.
Check soldering.
[IC601]
•
N.G.
Check soldering.
[IC704]
•
25
25
DVD-2200