35
DVD-3800BDCI
GU-3867(D.VIDEO UNIT)
(1) Component480i output [Y, Cb, Cr] does not be outputted.
Check Power Supply Voltages
Check Soldering
• Digital Power Supply Voltages
䍃
[CY080] 5pin(+5.0V_V3), 6-8pin(+3.3V_D2)
+3.3V_D2, +1.8V_V1, +5.0V_V3
䍃
Circumference of [IC603] (LM1117MPX-1.8/NOPB)
Check Digital signal for Video
Check Soldering
• Video Encoder [IC602](ADV7340) input:
䍃
[CX813]: 7,9,11,13,15,17,19,21,26pin
[YUV0-7]
䍃
R315-R322,R894,R744-746
[PCLK]
䍃
Circumference of [IC602]
Check control signal for Video Encoder
Check Soldering
䊶
[IC602](ADV7340) : [SDA], [SCK]
䍃
[CX813]: 30,32pin
䍃
Circumference of [IC602]
Check Video Encoder circuit
Check Soldering.
䊶
[IC602](ADV7340)
䊶
[IC602]
and circumference soldering of [IC602]
Check Video Buffer circuit
Check Soldering.
䊶
[Yp/Yi] : [TR606]
䊶
[TR606-608]
䊶
[Pb/Cb] : [TR607]
and circumference soldering of [TR606-608]
䊶
[Pr/Cr] : [TR608]
䊶
CX817 : 1,3,5pin
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Continue to the check
process of AV PWB
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