G2 (Screen) Adjustment; Focus Adjustment 1 - Sony TRINITRON KV-HR36M91 Service Manual

KV-HR36M61/HR36M91
RM-1007 RM-1007
4-3-2. Dynamic Convergence Adjustment
Preparation:
• Before starting this adjustment, adjust the horizontal static
convergence and the vertical static convergence
• Set the PICTURE and BRIGHTNESS to normal.
1. Adjust XCV core.
To able to become balance of XCV on the X axis well.
2. Adjust V-TILT.
Correct the vertical mis-convergence of red and blue of verti-
cally sides on the Y axis.
3. Adjust YCH.
Adjust horizontal mis-convergence of red and blue of verti-
cally sides on the Y axis. Mentioned above steps 2 to 4 are
adjusting respectively perform minuteness tracking.
XCV
YCH
TLV2
TLV1
C board
RV9001

4-4. G2 (SCREEN) ADJUSTMENT

1. G2 (SCREEN) ADJUSTMENT
1) Set to zoom mode and the PICTURE and BRIGHTNESS to
normal and to the service mode.
2) In put monoscope signal.
3) Set the service data. CXA2150P-210: ABLK10
4) Connect R, G and B of the C board cathode to the oscillo-
scope.
5) Adjust BRIGHTNESS to obtain the cathode voltage to the
value below.
6) Whilst watching the picture, adjust the screen VR located on
the flyback transformer to the point just before the flyback
return lines disappear (to the point before cut-off)

4-5. FOCUS ADJUSTMENT 1

Note
Focus adjustment should be completed before W/B adjustment.
(1) Receive digital monoscope pattern.
(2) Set DRC-MF to "Progressive" and PICTURE to "Standard".
(3) Adjust FOCUS VR so that the center of the screen becomes
justfocus.
FLYB ACK TRANSFORMER (T8001)
– 50 –
170V – 0.5 (VDC)
0 V
FOCUS
SCREEN G2