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KV-EF34M31/EF34M61/EF34M80/EF34M90/EF34M91
RM-951
4. SUB PICTURE BRIGHTNESS ADJUSTMENT
1) Set to service mode (Refer Section 4-1: ADJUSTMENTS WITH
COMMANDER).
2) Input a PAL RF colorbar signal through Sub TUNER (TU3301).
3) BRIGHTNESS .... RESET.
PICTURE ............ MINIMUM
4) A:Select SBR (WHB7) with
[1]
and
[4]
, and adjust SBR (WHB7)
level with
[3]
and
[6]
so that the second stripe from the right
is dimly lit.
B:Adjust RV5301 on B board so that the level of CN1310
0
pin is within spec.
3-5. G2 (SCREEN) AND WHITE BALANCE
ADJUSTMENTS
1. G2 (SCREEN) ADJUSTMENT
1) Set the PICTURE and BRIGHTNESS to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C board cathode to the oscilloscope.
4) Adjust G2 (Screen) volume to the value below.
0 V
175 V
±
2 (VDC)
2. DRIVE LEVEL ADJUSTMENT
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS
WITH COMMANDER).
2) Input PAL Colorbar Signal.
3) Set to VP7 (Service Mode) "DYC" = 0.
4) Set VP22 GON to "0",VP23 BON to "0".
5) Set to A/V mode to "PERSONAL".
6) Connect an osilloscope to pin
2
of CN705 on the C board.
7) Set the picture to maximum and Brightness to minimum.
Enter into the Service Mode.
8) Using the
[1]
and
[4]
buttons select SAJ0 "PMX".
9) Using the
[3]
and
[6]
buttons on the Remote Commander ad-
just until the oscilloscope waveform has an amplitude of 1.64
±
0.05Vp-p.
10) Reset to VP7 "DYC" = 1 and VP22 "GON" to 1, VP23 BON to
"1".
White
A:
second from the right
Black
B:
0.68
±
0.01Vp-p
3. WHITE BALANCE ADJUSTMENT
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS
WITH COMMANDER).
2) Input white raster signal.
3) Set the following condition.
PICTURE minimum, BRIGHTNESS 50%
4) Select GCT (WHB 4) and BCT (WHB 5) with
[1]
and
[4]
, and
adjust the level with
[3]
and
[6]
for the best white balance.
5) Set the PICTURE to maximum.
6) Select GDR (WHB 1) and BDR (WHB 2) with
[1]
and
[4]
, and
adjust the level with
[3]
and
[6]
for the best white balance.
7) Write into the memory by pressing
[MUTING]
then
[0]
.
1.64
±
0.05Vp-p
