Sony PFM-42B2, Service Manual

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2-9
PFM-42B2/42B2E
INPUT SELECT : 0 0 0 0 0 0 0 0
YUV3
RGB1
RGB2
YUV1 DV
Y/C
LINE
YUV2
SYNC POL (H/V) : NEGA/NEGA
Horizontal sync polarity
Vertical sync polarity
(1) INPUT SELECT
The input signals that are acceptable to the PFM-42B2/
B2E are set.
This item consists of 8 bits. Each bit corresponds to
each type of input signal. Only the input channel to
which “1” is set, can be received by the PFM-42B2/B2E.
n
Regarding the LINE and Y/C input channels, these signals
having horizontal frequency of 15 kHz can be inputted.
Because these input signals pass through the double-speed
processing circuit in the PFM-42B2/B2E circuit configura-
tion, do not use the LINE and Y/C input channels.
(2) INPUT SELECT 2
(3) H FREQUENCY
The horizontal frequency is set.
n
This menu item cannot be modified in the DIRECT
mode because the DIRECT mode can edit the signal
that is being inputted at present.
(4) V FREQUENCY
The vertical frequency is set.
n
This menu item cannot be modified in the DIRECT
mode because the DIRECT mode can edit the signal
that is being inputted at present.
(5) SYNC POL (H/V)
Polarity of sync signal is set.
To set the polarity, select as follows:
Negative polarity : NEGA
Positive polarity : POSI
SOG
: ___
n
This menu item cannot be modified in the DIRECT
mode because the DIRECT mode can edit the signal
that is being inputted at present.
(6) TOTAL H PIXEL
The total number of dots in a horizontal period is set.
The number of dots that is set here becomes the initial
value of the user menu “TOTAL H PIXEL”.
n
Set the total number of dots to satisfy the following condi-
tions.
TOTAL H PIXEL > [LEFT EDGE + H RESOLUTION]
(7) LEFT EDGE
The horizontal sync width (in dots)
+
horizontal back
porch width (in dots) are set.
(8) H RESOLUTION
Horizontal resolution power is set.
n
When 1280 or more is set to the horizontal resolution,
picture may not be displayed normally on screen. When a
signal that has the higher resolution than the SXGA signal, is
going to be preset, reduce the number of horizontal resolu-
tion by skipping or any other means down to 1280 or less.
(9) TOP EDGE
The vertical sync width (in lines) + vertical back porch
width (in lines) are set.
n
Set the TOP EDGE value to satisfy the following conditions.
[TOP EDGE + V RESOLUTION] < [horizontal
frequency + vertical frequency]
(10)V RESOLUTION
The vertical resolution is set.
n
Set the V RESOLUTION value to satisfy the follow-
ing conditions.
[TOP EDGE + V RESOLUTION] < [horizontal
frequency + vertical frequency]
(11)DOT PHASE
Pulse phase of the horizontal sampling frequency is
set.
The pulse phase that is set here becomes the initial
value of DOT PHASE of the user menu.
The pulse phase can be set in the range of 000 to 255.
INPUT SELECT2 : 0 0 0 0 0 0 0 0
RGB3
D4
PC