Marantz LC3701E, User Manual

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3. A/V Circuit BLOCK Diagram
3.1 PC Mode
P C inputs, R, G, B , H, and V signals, are entered through D-Sub 15pin (DSUB1).
When PC is selected in MCU, the signals are entered into the SCALER, MST-6151DA
(USC01).
MST6151DA is controlled using the MCU VCT49X3R(US02) Bus line of pin
41/42/43/47/48/49/50.
PC input resolution is Fh : 31~70k and Fv: 56~85Hz, and the maximum input resolution
is 1360x768 at 60Hz.
Because MST6151DA Scaler has AD converter, data is operated RGB 24 bits.
If the resolution is above the specifications, an out of range message is displayed on the
center of the screen.
However, even if the resolution is within the specified range, if the input timing is different
from the timing indicated
on the manual, unsupported video, a message can be displayed.
The Geometry Adjust function, which is used to adjust the picture position and size,
should be carried out in the Windows desktop screen,or full cross hatch.
The component signals, 480p, 720p, and 1080i, from the set-top box with a D-Sub out
port, may be has not good image quality.
Sound L R signal of pc mode is entered pin117,118 of VCT49X3R. and sound processor
is included in VCT49X3R.
Ouput Sound signal is outputted through pin 123,124 of MST6151DA ,and then this
signal is entered audio amp YDA138E.
PC input and DVI input share a single audio jack
3.2 HDMI Mode
HDMI inputs (LVDS signal), 8bit, are entered through HDMI 19pin (CNG02). When HDMI
is selected by MCU,
the LVDS signals are entered into digital port of the SCALER MST-6151DA (USC01).
MST6151DA is controlled using the MCU Bus line of pin 41/42/43/47/48/49/50.
the maximum resolution is 1360x768 at 65Hz. If the resolution is above the specifications,
an out of range message
is displayed on the center of the screen. However, even if the resolution is within the
specified range,
if the input timing is different from the timing indicated on the manual, unsupported
video, a message can be displayed.
In hdmi mode, this model support 480p(60), 576p(50), 720p(50/60), 1080i(50/60) ,and
pc timing on the manual.
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.3 COMPONENT Mode
Component signals Y, Pb(Cb),Pr(Cr) are entered port0 of mux PI5V330SWE(UC01).
mux PI5V330SWE is controlled by mcu.
When pin 1 of mux is low, component signal is outputted, and then Component signals