Pioneer DVR-560H-K, Руководство по обслуживанию

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41
DVR-LX61
5 6 7 8
5 6 7 8
A
B
C
D
E
F
*This flowchart shows how to confirm the output from the HDMI b lock on the b asis that an external input signal to the L1
connector is through-output from the analog output connector properly.
Connect the unit to a D V I monitor
that is provided with the HDCP
function (HDMI-D
V I conversion
connector required), or to a monitor
that supports HDMI.
Set the input setting to L1.
Input an external PAL signal to L1.
YES
N O
YES
N O YES
YES
AA
N o
Is an image
properly
displayed?
Are the
images output
successively
(does HDMI LED
light up)?
Does it repeat correct output
for a moment followed
b y b lack
screen (or sandstorm)?
W ith the aid of an oscilloscope, check IC1001, IC5 8 01 for the
points listed b elow. (Only checking with a PAL signal
is enough. Checking with an N TSC signal is not required):
• R5 8 65 (HTX_CLK : 27 MHz/74.25 MHz/14 8 .5 MHz @PAL)
From the following points, a 3.3- V swing signal must b e output:
• R5 8 55 (H sync)
• R5 8 55 ( V sync)
• R5 8 26 to R5 8 2 8 ( V ideo lines)
Are all the signals
mentioned a
b ove
output?
It is most likely that IC5 8 01 and the
su b sequent parts are in failure.
Check the soldering of the parts
listed
b elow:
• IC5 8 01 itself
• L5 8 01 to L5 8 04, JA5 8 01
• R5 8 42 to R5 8 45, C5 8 15 to 5 8 1 8
Possi b le defect in EMMA2RFEX.
1. In a case when only the HDMI video is not outputted
[1] Dia g nosis of the HDMI Block