Sub Color Adjustment; Sub Hue Adjustment; Focus Adjustment 2 - Sony Trinitron KV-AR29T80C Service Manual

KV-AR29T80C/AR29X80C
RM-W104

4-7. SUB COLOR ADJUSTMENT

1. Select VIDEO and set Picture according CONDITION
Condition :
PIC 100%
COL 50%
BRT 50%
2. Input PAL 100% CB to Video 1.
3. Adjust waveform at CN004 pin 1 (B output) within spec by
service item ''SUB COL'' and write in the data. As below
-Add 4 step to SUB COL (AV PAL)
V = V = V
B2 B3 B4
4. Input RF PAL 100% CB.
5. Adjust waveform at CN004 Pin (B output) within spec by
setvice item '' SUB COL'' and write in the data. As below
-Add 4 step to SUB COL (TV PAL)
V = V = V
B2 B3 B4
6. Input NTSC 75% CB at Video 1 and repeat item (3).
-Add 2 step to SUB COL (AV NTSC)
V = V
B1 B4
7. Input RF NTSC 75% CB and repeat item (5).
-Add 2 step to SUB COL (AV NTSC)
V = V
B1 B4
8. Select DVD input.
9. Input PAL 100% CB at YP
10. Adjust waveform at CN004 Pin (B output) within spec by
setvice item '' SUB COL'' and write in the data. As below
-Add 3 step to SUB COL (DVD PAL)
V = V = V
B2 B3 B4
11. Input NTSC 75% CB at YP
12. Adjust waveform at CN004 Pin (B output) within spec by
setvice item '' SUB COL'' and write in the data. As below
-Add 5 step to SUB COL (DVD NTSC)
V = V
B1 B4
V
B1
V
B2
RM-W104
HUE Center
SHP 50%
P .
b r
P .
b r
V V
B3 B4

4-8. SUB HUE ADJUSTMENT

1. Select NTSC 3.58 color bar into Video / TV mode
Condition :
PIC 100%
COL 50%
BRT 50%
2. Select Video input.
3. At CN004 pin 1 (B output) waveform (as shown) adjust
service item SUB HUE and write the data.
4. Select TV channel with NTSC 3.58 & repeat (3).
The highest level VB1, VB2, VB3, VB4 should be aligned
at the same line.
The idea difference between VB2 & VB3 is within ±60mV.
V
B1
V

4-9. FOCUS ADJUSTMENT 2

Note
Focus adjustment should be completed before W/B adjustment.
(1) Receive digital monoscope pattern.
(2) Set PICTURE MODE to "DYNAMIC".
(3) Adjust FOCUS VR so that the center of the screen becomes
just focus.
(4) Change the receiving signal to white pattern and blue back.
(5) Confirm MAGENTA RING should not be over the limit sam-
ple. In case MAGENTA RING is over the limit sample,
adjust FOCUS VR to take tracking of MAGENTA RING and
FOCUS.
FOCUS
SCREEN
G2
FLYB ACK TRANSFORMER (T502)
– 18 –
HUE Center
SHP 50%
V
V
B3
B4
60mV
B2