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Alignments
EN 70
SDI PDP 2K7
8.
8.3
Alignments 42” HD W2 Plus
8.3.1
Quick Check
For a quick check on the correct Y-main waveform alignment,
use the following method: Check the position of the potmeter
VRsc (scan), see Figure “Correct position of VR for Vsc (scan)
on Y-Main”. If necesary, use a trimmer to return it to its correct
position.
Figure 8-19 Correct position of VR for Vsc (scan) on Y-Main
8.3.2
For Reference Only
If the quick check does not solve the issue, perform the PSU
(SMPS) and other alignments, as indicated in alignment pages
of the W2 models. The W2 Plus PDP alignments are equivalent
to those of the W2 PDP models, but there are some minor
differences in the locations of test points and VRs. The
differences (locations of test points and VRs) are shown in the
photo above and the photos below.
Figure 8-20 Y-Main: Vr for adjusting Yfr
Figure 8-21 X-Main: VR for adjusting Ve
Figure 8-22 SMPS: VR for adjusting Vs
Figure 8-23 SMPS: Voltage measuring points
Figure 8-24 SMPS: Protection mode (Display Ramp)
H_16871_017.eps
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Check
Point
42HD W2P
Vsc VR
Vsc : -190 V
VR for adjusting Vsc
R
T
T
Vsc TP
Vsch TP
H_16871_018.eps
070907
j
j
w
42HD W2P
Yfr VR
Vsc : -190 V
VR for adjusting Yfr
R
T
T
H_16871_019.eps
070907
Check
Point
42HD W2P
Ve VR
Ve : 99 V
R
T
T
Ve TP
VR for adjusting Ve
H_16871_020.eps
070907
}G}
OpG}PG
H_16871_021.eps
070907
}GaGYW\G}
OYWW¥YX\P
}GaGX\G}
} aG]Z}
O]X¥]\}P
H_16871_022.eps
070907
Protection mode
Blink(green LED)
Vs
1
Va
2
Vg
3
12Vssb
4
VSND
5
D5V
6
PFC
7
Thermal
8
DC_PROT
9
Alarm board
LED