Panasonic AJ-D610WBp, Руководство по обслуживанию

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ELE-25
5. PRE PROCESS
5-1. R,G,B PEDESTAL Adjustment
BOARD
PRE PROCESS, SYNC
TP
TP103[R],TP303[G],TP503[B]
(PRE PROCESS)
TP3206[HD] (SYNC)
ADJUST
VR103[R PED] (PRE PROCESS)
VR303[G PED] (PRE PROCESS)
VR503[B PED] (PRE PROCESS)
EVR
F.NUMBER -
MODE CAM ON
M. EQ. Oscilloscope
SPEC. A = 0 +/- 50mV
1. Set the EVR .
COM:[1E] DATA:[20] ADR:[00] [Enter]
2. Connect a scope to TP3206 (SYNC) for trigger.
3. Connect a scope to TP103 and adjust VR103 so
that the center of the noise of signal period and
BLK period are the same.
4. Connect a scope to TP303 and adjust VR303 so
that the center of the noise of signal period and
BLK period are the same.
5. Connect a scope to TP503 and adjust VR503 so
that the center of the noise of signal period and
BLK period are the same.
5-2. 0 IRE ABB Confirmation
BOARD
CAM SYSCON
TP CAM OUT ( 75 ohm termination)
ADJUST EVR
F.NUMBER -
MODE -
M. EQ. Vector Scope
SPEC. Center of Vector = Center of Vector Scope
1. Set the EVR .
COM:[1E] DATA:[20] ADR:[00][Enter]
(GAIN L:0dB, KNEE:OFF, PED PRESET:2.0V)
COM:[1E] DATA:[21] ADR:[00][Enter]
(GAIN L M H:0dB, KNEE:OFF, 0IRE ABB SET)
2. Operate the ABB .
3. Connect a
Vector Scope
then set the gain to Max
,
Confirm the black dot is on the origin of the Vector
Scope .
4. Continue next adjustment with this setting.
*Observe the vector signal with vector scope gain
MAX
A
BLK
BLK
BLK
Center of the noise