Sanyo LCD-19R30, Руководство по обслуживанию

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Yes
Check NS01 pin 29,
pin 30 have
synchronous signal
input.
e) VGA channel has no picture
No
Check CS17, CS18, CS19,
CS20 have signal input.
Check circuit
between VGA
socket and NS01.
Yes No
Check NS01
circuit.
Check circuit
between VGA
socket and NS01.
f) HDMI channel has no picture
Check NS01 has digital
signal input.
Yes No
Check NS01 peripheral
circuit, crystal oscillator
and the power supply.
Check circuit between
HDMI socket and
NS01.
Note: To get normal HDMI picture, especially when connect to DVD player with HDCP
information, it must be guaranteed that NV04 and NV05 (HDMI port DDC chip) writing
is correct, and especially bus between NV04, NV05 and HDMI jack must be smooth
and unhindered. Secondly HOTPLUG circuit must be guaranteed (it is of high level at
normal broadcast), otherwise the picture playback can not be normal.
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