METHOD OF ADJUSTMENTS
5-9
5. Unit inspection for ANALOG PWB and VIDEO PWB
5-1 Setting of inverse gamma
(1) Set the rotary switch SW6602 at “F.” (Setting at inverse gamma correction OFF)
5-2 Confirmation of video signal processing
(1) Enter an NTSC lamp signal input in the VIDEO input terminal and select VIDEO input.
(2) Confirm that the video signal appearing in the display makes correct gradation changes.
* There is no problem even when sync turbulence is seen in the uppermost and lower parts of the screen,
or a sudden gradation change point is observed.
(3) Set the input signal for a color bar.
(4) Confirm that color reproduction is normally effected.
(5) Set the input signal for a monoscopic pattern.
(6) Set the screen mode at “NORMAL.”
(7) Check whether a normal display is obtained. In particular, confirm that an oblique wedge has no large steps
and it seems normal as a whole. (Confirmation of vertical interpolation processing)
(8) Push the “EASY WIDE” key of the remote control to change the screen mode and confirm that variation
occurs in the order of “NORMAL”
→
“FULL”
→
“STADIUM”
→
“ZOOM”
→
“NORMAL.”
In the case of “FULL” or “STADIUM,” however, both screens look like the same as each other in the
monitor.
(9) Change over the input signal to PAL and SECAM, and make the same confirmation in (1) to (8) above.
5-3 Confirmation of video control signals
(1) Select the VIDEO input.
(2) Confirm that “FS” only is flashing in the checking LEDs (except “POWER”) of the jig board, and that other
LEDs are unlit.
(3) Assume the setting mode for factory shipment, using the remote control.
(4) Obtain the “POSITION NTSC NORMAL” screen.
(5) Connect an oscilloscope to the checking terminals EXPDAT, EXPCLK, and POSICE of the jig board.
(6) Confirm that a 5Vp-p signal output is available. (Confirmation of serial data output to the digital module)
5-4 Confirmation of HD/DVD signal processing
(1) Apply the lamp waveform of an HDTV, a PAL, or an NTSC component signal to the HD/DVD input terminal,
and select the HD or DVD input.
(2) Confirm that the video signal appearing in the display is free from vertical lines and gradation changes are
normal.
* Synchronization disorder or a rapid change in the gradations might be observed in the top and bottom
parts of the screen, but it does not pose any problem.
(3) Set the input signal for a color bar.
(4) Confirm that color reproduction is normally effected.
(5) Set the input signal for a monoscopic pattern.
(6) Set the screen mode at “NORMAL.” Check whether a normal display is obtained. In particular, confirm that
an oblique wedge has no large steps and it seems normal as a whole.
Summary of Contents for PlasmaSync PX-42M2A
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Page 135: ...METHOD OF DISASSEMBLY 7 1 1 Diagonal view of the unit front ...
Page 136: ...2 Diagonal view of the unit rear 7 2 METHOD OF DISASSEMBLY ...
Page 148: ...MEMO ...
Page 152: ...MEMO ...
Page 155: ...B SAFETY BRACKET SASSY C CAP SASSY D SERVICE BAG SASSY PACKAGING 10 2 ...
Page 157: ...PACKAGING 10 4 G CUSHION CARTON BOX ...
Page 159: ...Outer box PACKAGING 10 6 ...
Page 162: ...2 PX42M2G ...
Page 163: ...12 1 CONNECTION DIAGRAMS ...
Page 164: ...13 1 BLOCK DIAGRAMS I O ANALOG ...
Page 165: ...13 2 BLOCK DIAGRAMS VIDEO AUDIO ...
Page 166: ...13 3 BLOCK DIAGRAMS POWER UNIT ...
Page 168: ...I O PWB PWC 4213B PARTS SIDE SOLDER SIDE SCHEMATIC DIAGRAMS 14 2 ...
Page 179: ...ANALOG PWB PWC 4214 PARTS SIDE SCHEMATIC DIAGRAMS 14 13 ...
Page 180: ...ANALOG PWB PWC 4214 SOLDER SIDE SCHEMATIC DIAGRAMS 14 14 ...
Page 184: ...VIDEO PWB PWC 4213A PART SIDE SCHEMATIC DIAGRAMS 14 18 ...
Page 185: ...VIDEO PWB PWC 4213A SOLDER SIDE SCHEMATIC DIAGRAMS 14 19 ...
Page 187: ...AUDIO PWB PWC 4216A PARTS SIDE SCHEMATIC DIAGRAMS 14 21 ...
Page 188: ...AUDIO PWB PWC 4216A SOLDER SIDE SCHEMATIC DIAGRAMS 14 22 ...
Page 190: ...SOUND I O PWB PWC 4216B PART SIDE SOLDER SIDE SCHEMATIC DIAGRAMS 14 24 ...
Page 196: ...MEMO ...
Page 197: ...PRINTED IN JAPAN 9806MI1250 01272002 PX 42M2A 01272003 PX 42M2G ...