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3-5-14. Aperture Adjustment
3-5-15. Black Balance Adjustment
Object:
Multi-burst chart
Object:
Grayscale chart
Equipment:
Waveform monitor
Equipment:
Oscilloscope, Waveform monitor
To be extended: PR-209 board
To be extended: PR-209 board
Preparation:
$1 (DTL\V/IE-47 board — OFF
Preparation:
e S1 (DTL ON/OFF)/IE-47 board > "ON"
Adjustment Procedure
e @RV3 (H/V RATIO)/E-47 board —» Mechanical center
1.
Chart frame = Underscanned monitor frame
e @RV4 (CRISPENING)/IE-47 board — Fully clockwise ©
2.
Test point:
VIDEO OUT
e @RVS5 (DTL LEVELYIE-47 board > Fully clockwise O
Adjusting point: Lens iris
e @RV10 (LEVEL DEP)/IE-47 board
Specification:
0.5 MHz Level "A"
—> Fully counterclockwise ©
= 100 + 2 IRE (for NTSC)
@RV10/IE-47 board is kept to fully counterclockwise.
= 700 + 10 mV (for PAL)
@RV10/IE-47 board is not used any adjustment item.
Adjusting point
1.
Chart frame = Underscanned monitor frame
2.
Test point:
VIDEO OUT
Adjusting point: Lens iris
Specification:
A= 100m+ 2 IRE (for NTSC)
700 + 10 mV (for PAL)
"A" is 80+ 5 %.
gee
|
(To get the following picture, set the LINE SEL switch on
as coe
the waveform monitor to "15 LINES". Adjust the VAR
control of LINE SEL. )
0.5 MHz
5.0 MHz
3.
Test point:
TP11 (GND: E1)/IE-47 board
Adjusting point: @RV11 (BLACK BAL)/IE-47 board
B = Ax (80 +5%)
lE-47 BOARD
— COMPONENT SIDE -
|
tes
RVI2
Oo
(HE OFFSEN
(HF aLiasy
[]7Ps
oS
LJ
DL3
Ale CO 2
[hres
(DTL ALIAS)
A) TP10
=DL4
pi2
FL2
AVIsS@
Davia
(2HLEV)
— (1HLEV)
FL3
ae
Ee
Fu
[|
ava
QIcRIsP,)
tl
TPIt
OOH}
Bai
entry)
TPS
TP?
(BLK. BAL.)
@
RV10
(LEV. DEP.)
é
_
(HF PHASE)
0
Z)
R
v1
(PHASE)
Rvg
fe: @on CLIP)
RVS
RV3
(DTLLEV.)
(H/V RATIO)
DXC-637 (UC)
3-16
DXC-637P (EK)
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