Sony DSC-1024HD Service Manual page 19

Digital scan converter
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4. Adjustments in composite video (NTSC) input
1) Input a NTSC gray scale signal (including 100 IRE white) to
VIDEO 1 in COMPOSITE VIDEO.
Set the slide switch on the rear to RGB output.
2) Press Alt + R on the PC and make sure that
"COLOR_NDX" is 1.
3) Press Alt + C on the PC and perform "Y/C (NT) V1 →Comp
(NT) V1".
4) Adjust RV1002 so that TP711 waveform becomes 0.72V
±0.01 Vpp
5) Input a NTSC color bar signal (including 75 IRE white).
6) Adjust "SUB COLOR", "HUE DATA" from the PC so that
TP503 waveform becomes flat.
7) Press Alt + S on the PC and perform "COLOR SAVE".
8) Set the slide switch on the rear to YBR output.
Input a NTSC gray scale signal (including 100 IRE white) to
VIDEO 1 in COMPOSITE VIDEO.
9) Make sure that TP712 waveform becomes less than
20 mVpp.
10) Make sure that TP710 waveform becomes less than
20 mVpp.
11) Make sure that TP708 waveform becomes less than
40 mVpp. (excluding BURST).
12) If steps 8 to 11 do not meet the specification, repeat from
step 1.
13) Press Alt + C on the PC and perform "Comp (NTSC)
V1→Comp (NTSC) V2".
5. Adjustments in Y/C (PAL) input
1) Input a PAL gray scale signal (including 100 IRE white) to
VIDEO 1 in Y/C.
Set the slide switch on the rear to RGB output.
2) Press Alt + R on the PC and make sure that
"COLOR_NDX" is 2.
3) Press Alt + C on the PC and perform "YBR V3→Y/C (PAL)
V1".
4) Adjust "SUB CONT" from the PC so that TP711 waveform
becomes 0.72V ±0.01 Vpp.
5) Adjust "RED DATA" from the PC so that TP712 waveform
becomes 0.72V ±0.01 Vpp.
6) Adjust "BLUE DATA" from the PC so that TP710 wave-
form becomes 0.72V ±0.01 Vpp.
Press Alt + S on the PC perform "COLOR SAVE".
7) Input a PAL color bar signal (including 75 IRE white) to
VIDEO 1 in Y/C.
8) Adjust "SUB COLOR", "HUE DATA" from the PC so that
TP503 waveform becomes flat.
9) Press Alt + S on the PC and perform "COLOR SAVE".
10) Set the slide switch on the rear to YBR output.
Input a PAL gray scale signal (including 100 IRE white) to
VIDEO 1 in Y/C.
11) Make sure that TP712 waveform becomes less than
20 mVpp.
12) Make sure that TP710 waveform becomes less than
20 mVpp.
13) Make sure that TP708 waveform becomes less than
40 mVpp (excluding BURST).
14) If steps 10 to 13 do not meet the specification, repeat from
step 1.
6. Adjustments in COMPOSITE (PAL) input
1) Input a PAL gray scale signal (including 100 IRE white) to
VIDEO 1 in COMPOSITE VIDEO.
Set the slide switch on the rear to RGB output.
2) Press Alt + R on the PC and make sure that
"COLOR_NDX" is 3.
3) Press Alt + C on the PC and perform "Y/C (PAL) V1→
Comp (PAL) V1".
4) Adjust RV1001 so that TP711 waveform becomes 0.72V
±0.01 Vpp
5) Input a PAL color bar signal (including 75 IRE white).
6) Adjust "SUB COLOR", "HUE DATA" from the PC so that
TP503 waveform becomes flat.
7) Press Alt + S on the PC and perform "COLOR SAVE".
8) Set the slide switch on the rear to YBR output.
Input a PAL gray scale signal (including 100 IRE white) to
VIDEO 1 in COMPOSITE VIDEO.
9) Make sure that TP712 waveform becomes less than
20 mVpp.
10) Make sure that TP710 waveform becomes less than
20 mVpp.
11) Make sure that TP708 waveform becomes less than
40 mVpp. (excluding BURST)
12) If steps 8 to 11 do not meet the specification, repeat from
step 1.
13) Press Alt + C on the PC and perform "Comp (PAL)
V1→Comp (PAL) V2".
7. SCH Adjustment in NTSC GENLOCK Mode
1) Enter NTSC black burst signal to the composite (BNC) in-
put terminal of INPUT1.
Enter VGA (graphic) color bar signal to the INPUT3.
2) Set the rear slide switch to RGB input.
3) Select the INPUT SELECT "3" to set the output format to
NTSC.
4) Set the SETUP LEVEL to 0, and GENLOCK to ON.
5) Set the vector scope to SCH measurement mode.
6) Using the communication tool, set "SCH", "SCH PRESET"
to "0x80" with respect to the burst signal.
7) Save the SCH value
8. SCH Adjustment in PAL GENLOCK Mode
1) Enter PAL black burst signal to the composite (BNC) input
terminal of INPUT1.
Enter VGA (graphic) color bar signal to the INPUT3.
2) Set the rear slide switch to RGB input.
3) Select the input selection "3" to set the output format to
PAL.
4) Set the GENLOCK to ON.
5) Set the vector scope to SCH measurement mode.
6) Using the communication tool, set "SCH", "SCH PRESET"
to "0x80" with respect to the burst signal.
7) Save the SCH value.
[Supplement]
Items 7 and 8 can be executed automatically by quitting the
DSC.EXE after item 6 finished, then executing the
SCH.EXE.
From the MS-DOS prompt, enter C : > SCH to start
SCH.EXE, so that the specified register is set to 0x80 in
both NTSC and PAL modes.
3-4
DSC-1024HD

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