24
DVD-2910/955
3. GU-3615-1 VIDEO UNIT
(1) Progressive output [Y,Pb,Pr] does not outputed.
Check Power Supply Voltages.
GU-3615-1(VIDEO UNIT)
• +3.3V_D3, +5V_V1, +2.5V_V1, +1.8V_V1
N.G.
Check Soldering.
• [CY051], [IC715], [IC716]
O.K.
Check Digital signal for Video [1].
GU-3615-1 (VIDEO UNIT)
• [IC718](FLI2310)input:
[PC2-9], [HSYNC], [VSYNC], [CLK0]
N.G.
Check Soldering.
• [CY331] : 4-11, 13, 23, 24pin
• RA708, RA709, R794
• [IC718] : 195, 196, 199-205, 207,208pin
• RA723 ,RA724 ,R930, R931
O.K.
Check oscillation waveform.
GU-3615-1 (VIDEO UNIT)
• [IC718] : [XTAL_IN]191pin
13.5MHz (3.3V) O.K.?
N.G.
Check Soldering.
• Circumference of [X731] (13.5MXTAL)
O.K.
Check control signal for [IC718] and [IC701].
GU-3615-1(VIDEO UNIT)
• [SDA],[SCK],[RST_V]
N.G.
Check Soldering.
• [CY331] : 9, 14, 15pin
• [IC718] : 45-47pin, R915-R917
• [IC701] : 21, 22, 33pin, R718, R719, R737
O.K.
Check Digital signal for Video [2].
GU-3615-1 (VIDEO UNIT)
• [IC718]output / [IC701] (ADV7310) input:
[YO0-9], [CO0-9], [P_HSYNC], [P_VSYNC]
[CLK_P/I], [PS_CLK]
N.G.
Check Soldering.
• [IC718] : 144-155, 126-137, 125, 118, 119pin
• R945, R947, R948
• [IC701] : 2-13, 14-18, 23, 24, 26-30, 32pin
• RA701-RA704, RA707, R723, R729
• Circumference of [IC702]
(SN74LVC157APW)
O.K.
Check Video Encoder [1] circuit.
GU-3615-1 (VIDEO UNIT)
• [IC701] :
N.G.
Check the soldering [IC701]and circumfer-
ence soldering of [IC701].
O.K.
Check Video Buffer circuit.
GU-3615-1 (VIDEO UNIT)
• [TR701-TR703] :
• [VR702-VR704]
N.G.
Check the soldering [TR701-TR703] and
circumference soldering of [TR701-TR703].
O.K.
Check Video Driver circuit.
GU-3615-1 (VIDEO UNIT)
• [IC708] (BH7862F)]
N.G.
Check the soldering [IC708] and circumfer-
ence soldering of [IC708].
O.K.
END
3. GU-3615-1 VIDEO UNIT
(1) プログレッシブ映像 [Y,Pb,Pr] 出力せず
電源電圧確認
GU-3615-1 (VIDEO UNIT)
・ +3.3V̲D3, +5V̲V1, +2.5V̲V1, +1.8V̲V1
N.G.
半田付けを確認
・ [CY051], [IC715], [IC716]
O.K.
映像用デジタル信号の確認 [1]
GU-3615-1 (VIDEO UNIT)
・ [IC718](FLI2310) 入力 :
[PC2-9], [HSYNC], [VSYNC], [CLK0]
N.G.
半田付けを確認
・ [CY331] : 4-11, 13, 23, 24pin
・ RA708, RA709, R794
・ [IC718] : 195, 196, 199-205, 207, 208pin
・ RA723, RA724, R930, R931
O.K.
発振波形確認
GU-3615-1 (VIDEO UNIT)
・ [IC718] : [XTAL̲IN] 191pin
13.5MHz (3.3V) O.K.?
N.G.
半田付けを確認
・ [X731] (13.5MXTAL) 周辺回路
O.K.
[IC718] と [IC701] 制御信号の確認
GU-3615-1 (VIDEO UNIT)
・ [SDA], [SCK], [RST̲V]
N.G.
半田付けを確認
・ [CY331] : 9, 14, 15pin
・ [IC718] : 45-47pin, R915-R917
・ [IC701] : 21, 22, 33pin, R718, R719, R737
O.K.
映像用デジタル信号の確認 [2]
GU-3615-1 (VIDEO UNIT)
・ [IC718] 出力 / [IC701] (ADV7310) 入力 :
[YO0-9], [CO0-9], [P̲HSYNC], [P̲VSYNC]
[CLK̲P/I], [PS̲CLK]
N.G.
半田付けを確認
・ [IC718] : 144-155, 126-137, 125, 118, 119pin
・ R945, R947, R948
・ [IC701] : 2-13, 14-18, 23, 24, 26-30, 32pin
・ RA701-RA704, RA707, R723, R729
・ [IC702] (SN74LVC157APW) 周辺回路
O.K.
ビデオエンコーダー [1] 回路の確認
GU-3615-1 (VIDEO UNIT)
・ [IC701]
N.G.
[IC701] 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-3615-1 (VIDEO UNIT)
・ [TR701-TR703]
・ [VR702-VR704]
N.G.
[TR701-TR703] とその周辺回路の半田付けを
確認
O.K.
ビデオドライバー回路の確認
GU-3615-1 (VIDEO UNIT)
・ [IC708] (BH7862F)
N.G.
[IC708] とその周辺回路の半田付けを確認
O.K.
終了
Summary of Contents for DVD-2910
Page 29: ...29 DVD 2910 955 BLOCK DIAGRAM ...
Page 48: ...48 DVD 2910 955 CXD2753R IC602 Pin Assignment Block Diagram ...
Page 79: ...79 DVD 2910 955 TA76432FC IC902 PC123 IC909 COLLECTOR EMITTER ANODE CATHODE TOP VIEW ...
Page 81: ...81 DVD 2910 955 PRINTED WIRING BORDS GU 3612 MAIN PWB P W B UNIT ASS Y COMPONENT SIDE ...
Page 82: ...82 DVD 2910 955 GU 3612 MAIN PWB P W B UNIT ASS Y FOIL SIDE ...
Page 83: ...83 DVD 2910 955 GU 3615 VODEO P W B UNIT ASS Y COMPONENT SIDE ...
Page 84: ...84 DVD 2910 955 GU 3615 VODEO P W B UNIT ASS Y FOIL SIDE ...
Page 85: ...85 DVD 2910 955 GU 3616 AUDIO POWER P W B UNIT ASS Y COMPONENT SIDE ...
Page 86: ...86 DVD 2910 955 GU 3616 AUDIO POWER P W B UNIT ASS Y FOIL SIDE ...
Page 117: ...DVD 2910 955 117 GU 3615 1 VIDEO P W B V6 V7 V8 V1 V2 V3 V4 V5 ...