34
DVD-3930/3930CI
3. GU-3749-2 (VIDEO UNIT)
(1) インターレース映像 [Y, Cb, Cr] 出力せず
電源電圧確認
GU-3749-2(VIDEO UNIT)
・ デジタル電源
+5V̲V3, +3.3V̲D3, +2.5V̲V1
N.G.
半田付けを確認
・ [CY071], [IC500]
・ [IC500] (BA25BCOFP-E2) 周辺回路
O.K.
映像用デジタル信号の確認 [1]
GU-3749-2(VIDEO UNIT)
・ ビデオエンコーダー [IC501](ADV7324) 入力 :
[YUV0 〜 7]
[CLK̲P/I]
N.G.
半田付けを確認
・ [CY211]: 11-18, 20pin
・ [IC501] 周辺回路
・ [IC503](SN74LVC157APW) 周辺回路
O.K.
[IC501] 制御信号の確認
GU-3749-2(VIDEO UNIT)
・ [SDA1], [SCK1], [RST̲V]
N.G.
半田付けを確認
・ [CY211]: 1,2,4-7pin
・ [IC501, IC502] 周辺回路
O.K.
ビデオエンコーダー回路の確認
GU-3749-2(VIDEO UNIT)
・ [IC501]
N.G.
[IC501] とその周辺回路の半田付けを確認
O.K.
ビデオバッファー回路の確認
GU-3749-2(VIDEO UNIT)
・ Yp/Yi: [TR502]
・ Pb/Cb: [TR503]
・ Pr/Cr: [TR504]
N.G.
[TR502 〜 504] とその周辺回路の半田付けを確認
O.K.
ビデオバッファー IC 回路の確認
GU-3749-2(VIDEO UNIT)
・ [IC505]
N.G.
[IC505] とその周辺回路の半田付けを確認
O.K.
ビデオ出力端子の確認
GU-3749-2(VIDEO UNIT)
・ 出力端子 : [JK706 〜 708].
N.G.
[JK706 〜 708] とその周辺回路の半田付けを確認
O.K.
終了
3. GU-3749-2 (VIDEO UNIT)
(1) Interlace output [Y, Cb, Cr] does not outputted.
Check Power Supply Voltages.
GU-3749-2(VIDEO UNIT)
• Digital Power Supply Voltages.
+5V_V3, +3.3V_D3, +2.5V_V1
N.G.
Check Soldering.
• [CY071], [IC500]
• Circumference of [IC500](BA25BCOFP-E2)
O.K.
Check Digital signal for Video[1].
GU-3749-2(VIDEO UNIT)
• Video Encoder [IC501](ADV7324) input:
[YUV0~7]
[CLK_P/I]
N.G.
Check Soldering.
• [CY211]: 11-18, 20pin
• Circumference of [IC501]
• Circumference of [IC503](SN74LVC157APW)
O.K.
Check control signal for Video Encoder [IC201].
GU-3749-2(VIDEO UNIT)
• [SDA1], [SCK1], [RST_V]
N.G.
Check Soldering.
• [CY211]: 1, 2, 4-7pin
• Circumference of [IC501, IC502]
O.K.
Check Video Encoder circuit.
GU-3749-2(VIDEO UNIT)
• [IC501]
N.G.
Check the soldering [IC501]
and circumference soldering of [IC501]
O.K.
Check Video Buffer circuit.
GU-3749-2(VIDEO UNIT)
• Yp/Yi: [TR502]
• Pb/Cb: [TR503]
• Pr/Cr: [TR504]
N.G.
Check the soldering [TR502~504]
and circumference soldering of [TR502~504]
O.K.
Check Video Buffer IC circuit.
GU-3749-2(VIDEO UNIT)
• [IC505]
N.G.
Check the soldering [IC505]
and circumference soldering of [IC505].
O.K.
Check Clamp circuit.
GU-3749-2(VIDEO UNIT)
• Output Terminal: [JK706~708].
N.G.
Check the soldering[JK706~708]
and circumference soldering of [JK706~708].
O.K.
END
Содержание DVD-3930
Страница 43: ...43 DVD 3930 3930CI BLOCK DIAGRAM...
Страница 51: ...51 DVD 3930 3930CI BD7956FS MA IC151 BD7956FS Block diagram 1 27 54 28...
Страница 57: ...57 DVD 3930 3930CI CXD2753R MA IC401 Pin Assignment Block Diagram...
Страница 67: ...67 DVD 3930 3930CI ADV7324 MA IC501 550...
Страница 72: ...72 DVD 3930 3930CI PRINTED WIRING BOARDS GU 3749 MAIN A VIDEO P W B UNIT COMPONENT SIDE...
Страница 73: ...73 DVD 3930 3930CI FOIL SIDE...
Страница 74: ...74 DVD 3930 3930CI GU 3750 POWER DISPLAY P W B UNIT COMPONENT SIDE...
Страница 75: ...75 DVD 3930 3930CI FOIL SIDE...
Страница 76: ...76 DVD 3930 3930CI GU 3751 AUDIO P W B UNIT COMPONENT SIDE...
Страница 77: ...77 DVD 3930 3930CI FOIL SIDE...
Страница 78: ...78 DVD 3930 3930CI GU 3752 DIGITAL VIDEO P W B UNIT COMPONENT SIDE...
Страница 79: ...79 DVD 3930 3930CI GU 3793 FAN POWER P W B UNIT FOIL SIDE COMPONENT SIDE FOIL SIDE...
Страница 151: ...151 DVD 3930 3930CI WIRING DIAGRAM...
Страница 154: ...154 DVD 3930 3930CI GU 3749 2 VIDEO P W B V6 V7 V8 V1 V2 V3 V4 V5...