Table of Contents
Advertisement
Serviceman Mode (Electronic Controls, Cont.)
Important Note:
Serviceman MTS Adiustments
-
-
-
-
-
~
-
~ . ~ -
~ r i t e down the original values ("bJJ in the
adjustment mode details, Figure 27) for each
address adjustment before modifying values.
Serviceman Sub Adjustments
a. Press
CH
Av
buttons on the Remote Control to select any of
the 6 Service Sub Adjustment Addresses. ("a" in
Figure 27)
b. Press
The
4 b
buttons on the Remote Control to adjust the
Sub-Brightness Adjustment
level of the selected Service Adjustment.
1. This adjustment will require a jumper from TP22
(J107) to ground.
B 1 Sub Tint
I
I
0
-
63
2. Use the one line convergence pattern from the
NTSC generator.
50
I
I
I
1
I
3. Set
c o
: 0-1 28, C1 : 100 and C2
: 0-1 28.
Serviceman VCJ Cut-Off Adjustments
4. Place the scope probe on test point TPA47G
a. Press
(video).
CH
Av
buttons on the Remote Control to select any of
5. Adjust 8 2 for 3 volts from ground to black level
the Service VCJ Cut-Off Adjustment Addresses. ("a" in
.
C
Figure 27)
B5 Video Adjust
0 - 15
B6 Audio Adjust
1 0 - 3 1
b. Press
The
4 b
buttons on the Remote Control to adjust the
level of the selected Service Adjustment.
8
23
Sub-contrast Adjustment
1. Apply a cross hatch pattern from the NTSC
C
generator.
2. Confirm that C O and C2 are 0-128.
3. Connect the scope probe to test point TPA47G.
4. Adjust DAC 8 3 for 2.6 volts from the horizontal line
to black.
Sub-contrast
2.6Vf 0.2V
GND
Advertisement
Table of Contents
