Picture Quality Adjustment; Deflection Adjustment; A Board Adjustment After Ic003 (Memory) Replacement - Sony Trinitron KV-HA21M50 Series Service Manual

4-3. PICTURE QUALITY ADJUSTMENT

SUB COLOR ADJUSTMENT
1. Select Video.
2. Input a PAL color-bar.
3. Set to the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
4. Connect an oscilloscope to pin 1 (B OUT) of CN300, A board.
5. Set to Service Mode and select 13 'SC1' with 1 and 4 of
the commander then adjust to VB2=VB3=VB4 with 3 and
6.
¡ - of the commander to write the data.
[MUTING]
6. Press
7. Adjust 13 'SC1' as step 2 to 5 when receiving NTSC
color-bar.
VB1
VB2
VB2 = VB3 = VB4
VB2 = VB3 = VB4 (Difference is within 70mV)
SUB HUE ADJUSTMENT
1. Select Video.
2. Input a NTSC 3.58, color-bar into Video/TV mode.
3. Set the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
4. Connect an oscilloscope to pin 1 (B OUT) of CN300, A
board.
5. Select 11"SHU" with 1 and 4 of the commander by setting
to Service Mode and adjust to VB1=VB2=VB3=VB4 with 3
and 6 .
VB1
VB3
VB2
VB1 = VB2 = VB3 = VB4
The highest level of VB1,VB2,VB3,VB4 must be aligned at
the same line. Ideal difference level between VB2 and VB3
should be within ± 110mV.
¡ - of the commander to write the data.
[MUTING]
6. Press
7. Select TV channel with NTSC 3.58 and repeat 3 to 5.
¡ - of the commander to write the data.
[MUTING]
8. Press
9. Single system model with NTSC 4.43, select TV channel with
NTSC 4.43 and repeat 3 to 5.
VB3 VB4
VB4

4-4. DEFLECTION ADJUSTMENT

NORMAL MODE (50Hz)
1. Set to Service mode.
2. Input PAL color bar.
Using the 1 and 4 button, select category GEO
3.
(Service Mode).
Raise/lower the data using the 3 and 6 buttons.
4.
Select and adjust the following items to obtain optimum
image.
Service Item
GEO : 00 HPS
01 HSZ
02 PAP
03 CPN
04 TLT
05 VSL
06 VAP
07 SCO
08 VPS
NORMAL MODE (60Hz)
5. Input 525/60Hz signal.
6. Using the 1 and 4 buttons select category GEO (Service
Mode).
7. Select and adjust the following items to obtain obtimum
image.
Raise/lower the data with the 3 and 6 buttons.
Service Item
GEO : 00 HPS
01 HSZ
02 PAP
03 CPN
04 TLT
05 VSL
06 VAP
07 SCO
08 VPS
4-5. A BOARD ADJUSTMENT AFTER IC003
(MEMORY) REPLACEMENT
1. Enter to Service Mode.
Press commander buttons 5 and - (Data Initialize), and
2.
2 and - (Data Copy) to initialize the data.
3. Call each item number and check if the respective screen
shows the normal picture.
In cases where items are not well adjusted, rectify the fine
adjustment.
Write the data per each item number (
4. Select item numbers 4E 'OP0', 4F 'OP1', 50 'OP2' and
respectively set the bit per model with command buttons
3 and 6 .
Press commander buttons 8 and - (Test Normal) to return
5.
to the data that was set on the shipment from the factory.
(This will also cancel Service Mode.)
– 25 –
KV-HA21M50/HA21M60/HA21M80/
KV-HA21M80/H/HA21M81/HA21P52
H POSITION
H SIZE
PIN AMPLITUDE
CORNER PIN
TILT
V SLOPE
VERTICAL AMPLITUDE
S CORRECTION
V SHIFT
H POSITION
H SIZE
PIN AMPLITUDE
CORNER PIN
TILT
V SLOPE
VERTICAL AMPLITUDE
S CORRECTION
V SHIFT
[MUTING]
RM-969
+-).