D2-2
ELECTRICAL ADJUSTMENTS
2-5: STEREO SEPARATION
NOTE: Adjust after performing adjustments in section 2-4.
1.
2.
3.
Receive the stereo signal. (L=2KHz, R=400Hz)
Connect the AC voltmeter to AUDIO OUT L/R through
stereo filter (L=400Hz, R=2KHz).
Check if the difference between with the stereo filter
and without the stereo filter is more than 23dB.
(TV SECTION)
2-6: CONSTANT VOLTAGE
1.
2.
3.
Connect the digital voltmeter to TP501.
Set condition is AV MODE without signal.
Adjust the VR502 until the DC voltage is 111
±
0.5V.
2-7: OSD HORIZONTAL
1.
2.
3.
4.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (5) on the remote control.
The Fig. 2-2 appears on the display.
Press the channel button (4) on the remote control.
Press the VOL. UP/DOWN button on the remote
control until the difference of A and B becomes
minimum. (Refer to Fig. 2-3)
[ TV ]
OSD H
A
B
Fig. 2-3
2-8: HORIZONTAL PHASE
1.
2.
3.
4.
5.
Receive the center cross signal from the Pattern
Generator.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (1) on the remote control.
The Fig. 2-4 appears on the display.
Press the channel button (1) on the remote control.
Press the VOL. UP/DOWN button on the remote
control until the right and left screen size of the vertical
line becomes the same.
1. H. PHASE
2. H. BLK
3. V. SIZE
4. V. POSI
5. V. LIN
6. V. SC
7. V. COMP
8. (H FREQ) 0. RETURN
Fig. 2-4
"The adjustment item 8 is not used for this model."
2-9: HORIZONTAL SIZE
NOTE: Adjust after performing adjustments in section 2-8.
Measurement Equipment Maker: SHIBASOKU Co. Limited
Measurement Equipment Model No.: DIGITAL TEST PATTERN
GENERATOR 588
1.
2.
Receive the monoscope pattern.
Adjust the VR401 until the SHIFT quantity of the OVER
SCAN on right and left becomes 10
±
2%.
(Simple Adjustments)
1.
2.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (6) on the remote control.
The Fig. 2-5 appears on the display.
Press the channel button (6) on the remote control.
Adjust the VR401 until the right vertical line of the
pattern becomes fit to the right end.
Fig. 2-5
1. EXTERNAL
2. BLACK
3. WHITE (100)
4. WHITE (60)
5. CROSS (100)
6. CROSS (60)
7.
8. 0. RETURN
"The adjustment items 1, 2, 3, 4 and 5 are not used
for this model."
2-10: VERTICAL SIZE
NOTE: Adjust after performing adjustments in section 2-9.
1.
2.
3.
4.
5.
6.
Receive the cross hatch signal from the Pattern
Generator.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (1) on the remote control.
The Fig. 2-4 appears on the display.
Press the channel button (3) on the remote control.
Press the VOL. UP/DOWN button on the remote
control until the rectangle on the center of the screen
becomes square.
Receive a broadcast and check if the picture is normal.
2-11: VERTICAL LINEARITY
NOTE: Adjust after performing adjustments in section 2-10.
1.
2.
3.
4.
5.
Receive the cross hatch signal from the Pattern
Generator.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (1) on the remote control.
The Fig. 2-4 appears on the display.
Press the channel button (5) on the remote control.
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes minimum.
