12
(1)-1
NO
YES
Is the video signal of 1Vp-p applied to
The VCC+5V system, IC9501, and
Pins 124, 133,and 139 of IC6501?
peripheral circuits are out of order.
NO
YES
Is the video signal of 1Vp-p applied to
The analog circuit of the MAIN PWB
Pins 1, 2, and 3 of the YU connector?
is out of order.
NO
The YU connector cable or the circuits before the
VIDEO PWB are out of order.
Go to “Pictures and ON-screen display not available.”
NO
Are pulses of 3Vp-p applied to Pins 38, 39, and 40 of
IC9402, IC9501, and peripheral circuits
the AD connector?
are out of order.
YES
NO
Are the horizontal/vertical sync signals of 3Vp-p available at
IC9000, IC9501, and peripheral
Pins 27 and 28 of IC9403, and the clock signals at Pin 31?
circuit are out of order.
YES
NO
Are the signals of 3Vp-p applied to the signal input pins
IC9000, IC9501, and peripheral circuits
(signal names: REV_LVDS, RODD_LVDS, etc.) of IC9403
are out of order.
and IC9404?
YES
YES
Is a correct display presented when the AD, or the PD, or the
Each cable is defective.
PH cable is replaced?
NO
YES
Is a correct display presented when the MAIN PWB is
The MAIN PWB is out of order.
replaced?
YES
NO
Are normal outputs of 170V, 70V, and D+5V available in the
Go to 1. “No power available” (P. 2).
POWER unit?
YES
The PDP module is out of order.
1Vp-p
1Vp-p
Horizontal
49K
60Hz
38M
Vertical
Clock
Summary of Contents for PlasmaSync 50MP1
Page 1: ...USE THIS SERVICE MANUAL WHEN SERVICING Model PLA 50V1 ...
Page 10: ...PlasmaSync Plasma Monitor User s Manual NEC Technologies ...
Page 64: ...TROUBLESHOOTING 4 1 ...
Page 80: ...METHOD OF ADJUSTMENTS 5 1 ...
Page 98: ...CIRCUIT DESCRIPTION 6 1 ...
Page 113: ...METHOD OF DISASSEMBLY 7 1 ...
Page 134: ...PACKAGING 8 1 ...
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Page 147: ...PART LIST 9 1 ...
Page 158: ...CONNECTION DIAGRAMS 10 1 ...
Page 160: ...BLOCK DIAGRAMS 11 1 ...
Page 163: ...SCHEMATIC DIAGRAMS 12 1 ...
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