Pioneer DVR-550HX-S, Руководство по обслуживанию

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DVR-LX60D
37
5 6 7 8
5 6
7
8
C
D
F
A
B
E
*This flowchart shows how to confirm the output from the HDMI block on the basis that an external input signal to the L1
connector is through-output from the analog output connector properly.
Connect the unit to a DVI monitor
that is provided with the HDCP
function (HDMI-DVI conversion
connector required), or to a monitor
that supports HDMI.
Set the input setting to L1.
Input an external PAL signal to L1.
YES
NO
YES
NO YES
YES
AA
No
Is an image
properly
displayed?
Are the
images output
successively
(does HDMI LED
light up)?
Does it repeat correct output
for a moment followed by black
screen (or sandstorm)?
With the aid of an oscilloscope, check IC1001, IC5801 for the
points listed below. (Only checking with a PAL signal
is enough. Checking with an NTSC signal is not required):
• R5865 (HTX_CLK : 27 MHz/74.25 MHz/148.5 MHz @PAL)
From the following points, a 3.3-V swing signal must be output:
• R5855 (H sync)
• R5855 (V sync)
• R5826 to R5828 (Video lines)
Are all the signals
mentioned above
output?
It is most likely that IC5801 and the
subsequent parts are in failure.
Check the soldering of the parts
listed below:
• IC5801 itself
• L5801 to L5804, JA5801
• R5842 to R5845, C5815 to 5818
Possible defect in EMMA2RFEX.
1. In a case when only the HDMI video is not outputted
Diagnosis of the HDMI Block