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6. SetthescansizetoJ6:9N/S.
7, Advanceto~
8. Adjustthe
16·2 NORMA[ SIIBCQNTRASI
so that the luminance at the 16:9 N/S mode equals to the
luminance at 4:3 N/S mode.
9. SetthescansizetoJ6:9U/S.
10.Advanceto~.
11.Adjustthe
16 ·9 TJNQEB SJJBCONTRAST
so that the luminance at the 16:9 UIS mode equals to the
luminanceat4:3N/Smode.
12. Write the data.
13. Setthescansizeto4:3
N/S.
4-10. +B Power Line Check
l.
Receive the PAL monoscope signal.
2. Confirm that the +B power line satisfies the specification.
+B •• • • • • 115±5V
4-11 HV. REF Adjustment
Adjust
the
HV. REF (1P3006)
to
satisfy the specification.
Writethedataafteradjustment
Re-adjust the focus.
No. 190 ~
6.480±0.00JV
4-12 HV. PROT. REF Adjustment
Adjust the HY. PROT. REF (TP3006) to satisfy
the
specification.
Write the data after adjustment.
Re-adjust the focus.
No.189
~
10.460~g:~v
PVM-20M7MDE
4-13 HV. PROT Check
Confirm that the raster disappears when 10.472 Vis applied to the
PROT (CN3008 pin-5). Tum off the main power of the set then tum
on again.
Note: This is to confirm that the protector wod.s at HV=30kV.
4-14
IK.
PROT Check
Remove all input signals. Connect a constant current source to
TP3009 (ABL)
so
that the
current
below is subtracted from TP3009.
Confinn that the protector works and
the
raster disappears. Tum off
the main power of
the
set
then
turn
on again,
Comtantcurrent:wnrce 20mA
Note:
The(-)
terminal of the current load must be connected to
thevoltageof-5Vorless.
-31-
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