Panasonic AJ-D610WBp, Service Manual

Page: 65 / 363

ELE-9
2-13. RGB BLK Adjustment
BOARD PRE PROCESS
TP TP101 [R]
TP301 [G]
TP501 [B]
ADJUST VR101 [R BLK]
VR301 [G BLK]
VR501 [B BLK]
F NUMBER CLOSE
CHART Gray Scale (2000 +/- 50 Lux)
M. EQ. Oscilloscope
SPEC. A=0+/-20 mV (BLK difference)
(SH : Sampling and Hold)
1. Set the Camera Recorder switches as shown
below.
GAIN : H (+30 dB)
2. Adjust VR101 so that the Level A (BLK difference)
at TP101 is in the Specification.
3. Adjust VR301 so that the Level A (BLK difference)
at TP301 is in the Specification.
4. Adjust VR501 so that the Level A (BLK difference)
at TP501 is in the Specification.
2-14. RGB A/D INPUT Level
Adjustment
BOARD PRE PROCESS
TP TP103 [R]
TP303 [G]
TP503 [B]
ADJUST VR105 [R_AD]
VR305 [G_AD]
VR505 [B_AD]
F NUMBER F11 + 1/2
CHART Gray Scale (2000 +/- 50 Lux)
M. EQ. Oscilloscope
SPEC. A=1370+/-100mVp-p
1. Adjust VR105 so that the Level A at TP103 is in the
Specification.
2. Adjust VR305 so that the Level A at TP303 is in the
Specification.
3. Adjust VR505 so that the Level A at TP503 is in
the Specification.
2-15. RGB PED Adjustment
BOARD PRE PROCESS
TP TP103[R]
TP303[G]
TP503[B]
ADJUST VR103[R PED]
VR303[G PED]
VR503[B PED]
F NUMBER
CLOSE
CHART -
M. EQ. Oscilloscope
SPEC. Black Level = BLK Level
(PED : Pedestal)
1. Connect a scope to TP103, then adjust VR103 so
that the center of the noise at Black Level is same
as Blanking Level.
2. Connect a scope to TP303, then adjust VR303 so
that the center of the noise at Black Level is same
as Blanking Level.
3. Connect a scope to TP503, then adjust VR503 so
that the center of the noise at Black Level is same
as Blanking Level.
BLK
Black level
A
Video Signal
(Center)
BLK
A