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CUT OFF, BKGD ADJUSTMENT CONTINUED
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE
3
Max Beam Check
(1) Receive 50Hz Monoscope Pattern Signal.
(2) Press R/C to set Picture NORMAL condition.
(3) Select full mode.
(4) Connect the DC miliammeter between TP601 and
TP602
(Full Scale: 3mA Range)
(5) Beam current must be within 1800 ±100µA.
4
SUB-CONTRAST
(1) Receive the window pattern with AV input.
(SUB-CONT)
(2) Make the picture normal with the remote controller.
I2C bus adjustment
(3) Select the SUB-CONTRAST adjustment mode with the
remote controller, and adjust 50% white to 140 ± 10cd.
(RF SIGNAL)
5
SUB-BRIGHTNESS
(1) Receive the window pattern with AV input.
(SUB BRI)
(2) Make the picture normal with the remote controller.
I2C bus adjustment
(3) Select the sub-bright adjustment mode with the remote
(RF signal)
controller, and adjust the right dark white area of the
window pattern to 2.0cd ± 0.5cd.
WAVEFORM OR OTHERS
Note 2: Use "Y" of Minolta colour analyzer
CA-100.
Note 3: Use the PAL window pattern of
the signal generator SX1006 for
adjustment.
50% white for SUB-CONT
Dark white for SUB-BRIGHT
Note 4: window pattern
* When E-2 CH (Crosshatch pattern )or
eqivalent signal is received.
1. Make the picture normal with the remote
controller.
2. Adjust the 3rd (1 thru 5 from the left) balck
of the window pattern to sink.
CUT OFF POINT
5-1
PAL CHROMA ADJUSTMENT
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE
1
SUB COLOUR
(1) Receive the "PAL Colour Bar" signal. (E-10CH)
I2C Bus adjustment
(RF signal)
(2) Make the picture normal with the remote controller.
(3) Connect the oscilloscope to TP1802 (Use 10:1 probe)
Range:2V/Div
Sweep time:20µsec/Div
(4) Set the sub colour adjustment mode with the remote
controller, and vary the sub colour data to make 75% W
of the PAL colour bar and RED at the same level for
adjustment shown in Fig. 1-1.
NTSC CHROMA ADJUSTMENT
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE
1
SUB-TINT
(1) Select the sub-tint adjustment mode to receive NTSC
I2C bus adjutment
colour bar.
(RF signal)
(2) Connect the oscilloscope to TP1803
Range
:20mV/Div(AC) (Use Probe 10:1)
Sweep time
:10µsec/Div
(3) Vary the sub tint data to adjust the waveform to be
gained as shown in Fig 1-1.
*Change NVM data
position 7F1
data
07=>00
07 is the offset value for factory.
HORIZONTAL, VERTICAL, DEFLECTION LOOP ADJUSTMENT
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE
1) 100Hz FULL
(1) Press R/C to set Picture NORMAL condition.
(2) Select full mode.
*Receive 50Hz Monoscope Pattern Signal.
1
V. LINEARITY
(1) Call the "VERTICAL LINEARITY" mode.
(I2C BUS CONTROL)
(2) Increase or decrease "VERTICAL LINEARITY" by
Volume key till the horizontal line in the center of
monoscope is just at the position where the blanking
starts.
2
VERTICAL POSITION
(1) Call the "VERTICAL POSITION" mode.
(I2C BUS CONTROL)
(2) Increase or decrease "VERTICAL POSITION" by
Volume key till the picture is centered.
3
VERTICAL AMP.
(1) Call the "VERTICAL AMPLITUDE" mode.
(I2C BUS CONTROL)
(2) Increase or decrease "VERTICAL AMPLITUDE" by
Volume key to set overscan of 8% typical.
Adjustment Spec 8% range +1% -1%
4
HORIZONTAL
(1) Call the "Hor.RGB Pos POFS3" mode. (not NEWLIN
POSITION
mode)
(I2C BUS CONTROL)
(2) Increase or decrease "Hor.RGB Pos POFS3" by Volume
key to center the picture horizontal.
5
PICTURE WIDTH
(1) Call the "PICTURE WIDTH" mode.
(I2C BUS CONTROL)
(2) Increase or decrease "PICTURE WIDTH" by Volume
key to set overscan of 8% typical.
Adjustment Spec 8% range +1% -1%
*Receive 50Hz Cross-Hatch Pattern Signal.
WAVEFORM OR OTHERS
Cy
G
B
W
Y
W
Mg R
75%
100%
Fig.1-1
WAVEFORM OR OTHERS
(B-Y)
Adjust
Same Level
W Y Cy G Mg R Bl B
Fig.1-1
WAVEFORM OR OTHERS
Note:
VERTICAL POSITION and VERTICAL AMP.
C
A
2mm > |A-B|
E-5
2mm > |C-D|
A face is for south
Adjustment Spec 8.0% range +1% -1%
at the upper side of the geometry center and
the lower side of the geometry center
5-2
D
B
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