Denon DVD-A11 - 1.2. Image is not displayed.; 3. GU-3514 VIDEO P.W.B. CHECK process

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23
DVD-5900/DVD-A11
(3) Check the Set-up process of F/E µ-COM.
1.2. Image is not displayed. (Blue-back, DENON wallpaper)
Check Reset signal.
• [IC507]:(DRVRST) 51 pin.
“H” level O.K.?
Check Power Supply Voltages.
• [IC507]:
+3.3V_D2, +1.8V_D2 O.K.?
+3.3V_A2, +1.8V_A2 O.K.?
Check Clock waveform.
• [IC507]:33 pin.
33.87MHz (3.3V), O.K.?
O.K.
Check soldering
• [IC951]
• FB953 and FB967, FB960.
O.K.
N.G.
Check soldering
• [IC108]: 145pin.
• R628 and R618.
END
N.G.
N.G.
Check soldering
• [IC106]: 12pin.
• R147.
• [IC404], R440 and R623
O.K.
Check Digital input signal for Video.
• [GU-3514]: YUV(0--7), VCLK,
CLAMP
O.K.
N.G.
Check soldering
• [CX331]
Check Digital output signal for Video.
• [IC108]: YUV(0--7), VCLK,VSYNC,
HSYNC
Continues to the Check process of GU-3514 VIDEO P.W.B..
N.G.
Check soldering
• [IC108]: 106--119pin.
• [IC105]
• RA108, RA109, RA701, RA702,
R156, R156, R120 and R701.
O.K.
Check Recet signal.
• [IC702]:(SRN/RST-V
) 154 pin.
“H” level O.K.?
N.G.
Check soldering
• [IC115]
• R191, R751, R702
O.K.
O.K.
Check Digital output signal for Video.
• [IC702]: PC(0--9), CLKO,CLAMP
N.G.
Check soldering
• [FB101--111,FB115]
• R704.
• [IC702]: 137--149pin
(3) F/Eμ-COM 立ち上げチェック工程
1.2. 映像 ( ブルーバック ,DENON壁紙 ) 出ない。
IC507 のResetの確認
(DRVRST)51pin.
Hlevel
[IC507] の D2,A2 の電圧確認
+3.3VD2,+1.8VD2
+3.3VA2,+1.8VA2
IC507 の 33pin のクロック波形確認
33.87MHz(3.3V),
O.K.
半田付けを確認
･[IC951]
･FB953、FB967、FB960.
O.K.
N.G.
半田付けを確認
･[IC108] の 145pin.
･R628と R618.
終了
N.G.
N.G.
半田付けを確認
･[IC106] の 12pin.
･R147.
･IC404,R440とR623
O.K.
[GU-3514] の映像用デジタル信号
入力確認 .
･PC(0 〜 9),CLKO,CLAMP
O.K.
N.G.
半田付けを確認
･[CX331]
[IC108] の映像用デジタル信号出
力確認 .
･YUV(0 〜 7),VCLK,VSYNC,
HSYNC
3.GU-3514VIDEOP.W.B.チェック工程へ
N.G.
半田付けを確認
･[IC108] の 106 〜 119pin,IC105
･RA108,RA109,RA701,RA702,
R156とR120,R701.
O.K.
[IC702] の Reset 信号の確認 .
(SRN/RST-V
)154pin
Hlevel
N.G.
半田付けを確認
･[IC115]
･R191,R751,R702.
O.K.
O.K.
[IC702] の映像用デジタル信号出
力確認 .
･PC(0 〜 9),CLKO,CLAMP
N.G.
半田付けを確認
･[FB101 〜 111,FB115]、R704
･[IC702] の 137 〜 149pin.
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