– 46 –
KDP-57XBR2/65XBR2
K
RM-Y185
4-1. 480p Y, PB, PR GAIN ADJUSTMENT
1. Receive the 100 % color bar (480p, 0% setup, component)
signal with VIDEO 5 input.
(White to Black Level : 700
±
10 mVp-p)
2. Connect the oscilloscope between CN005
<
A
a
pin (V_MIDI_Y),
<
A
s
pin (V_MIDI_PB),
<
A
d
pin (V_MIDI_PR) on the B board
and ground.
3. Set in the service mode and select the category “CXA2151”.
4. Adjust “5 YGN” , “3 CBGN” and “4 CRGN” so that the
waveform level is 1.400
±
0.035 Vp-p.
5. After adjustment finished, press “
[MUTING]
” + “
[ENTER]
”
buttons on the commander to write the data to the NVM.
A
Y
PB
PR
31.78
µ
s
A = 1.400
±
0.035 Vp-p
A
A
SECTION 4
CIRCUIT ADJUSTMENTS
Fig. 4-1
4-2. MAIN Y/C LEVEL ADJUSTMENT
(FOR THE DRC PATH)
1. Receive the 100 % color bar (480i, 0% setup, component)
signal with VIDEO 5 input.
(White to Black Level Y : 714
±
10 mVp-p, PB, PR : 700
±
10 mVp-p)
2. Connect the oscilloscope between CN005
<
A
g
pin (V_DRCI_Y),
<
A
h
pin (V_DRCI_PB) on the B board and ground.
3. Set in the service mode and select the category “2103-1”.
4. Adjust “0 YLEV” and “1 CLEV” so that the waveform levels
are 1.400
±
0.015 Vp-p and 1.490
±
0.015 Vp-p.
5. After adjustment finished, press “
[MUTING]
” + “
[ENTER]
”
buttons on the commander to write the data to the NVM.
A
Y
PB
63.5
µ
s
B = 1.490
±
0.015 Vp-p
A = 1.400
±
0.015 Vp-p
B
Fig. 4-2
4-3. MAIN Y/C LEVEL ADJUSTMENT
(FOR THE VDO PATH)
1. Receive the 100 % color bar (480i, 0% setup, component)
signal with VIDEO 5 input.
(White to Black Level Y : 714
±
10 mVp-p, PB, PR : 700
±
10 mVp-p)
2. Connect CN005
<
A
l
pin (MN_SB_SW) on the B board to 5 V.
3. Connect the oscilloscope between CN005
<
A
a
pin (V_MIDI_Y),
<
A
s
pin (V_MIDI_PB) on the B board and ground.
4. Set in the service mode and select the category “2103-1”.
5. Adjust “0 YLEV” and “1 CLEV” so that the waveform levels
are 1.400
±
0.015 Vp-p.
6. After adjustment finished, press “
[MUTING]
” + “
[ENTER]
”
buttons on the commander to write the data to the NVM.
A
Y
PB
63.5
µ
s
A = 1.400
±
0.015 Vp-p
A
Fig. 4-3
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