Gu-3497 Video Pwb; Progressive Output Does Not Outputed; Interlace Output Does Not Outputed - Denon DVD-2900 Service Manual

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3. GU-3497 VIDEO PWB

3 7 63 1515 0

(1) Progressive output does not outputed.

Check Power Supply Voltages.
+3.3V_D3, +5V_D1,
+3.3V_V2, +2.5V_V1, +1.8V_D3
Check Oscillation circuit.
• [IC-703]: (MC504) Set-up
20MHz Oscillation.
RESET "H"?
Check IC701.
RESET "H"?
Check IC704.
RESET "H"?
Check IC601.
RESET "H"?
TE
L 13942296513
O.K.

(2) Interlace output does not outputed.

Check IC704.
RESET "H"?
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http://www.xiaoyu163.com
N.G.
5V_V1
O.K.
N.G.
O.K.
N.G.
O.K.
N.G.
O.K.
N.G.
N.G.
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8
Check soldering.
• [CY331]
• [IC712] -- [IC714]
Check soldering.
• [X701]
Check soldering.
• [IC701]
Check soldering.
• [IC704]
Check soldering.
• [IC601]
Q Q
3 6 7 1 3
Check soldering.
• [IC704]
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28
DVD-2900
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
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28
9 9
2 8 9 9