Blue-Only White Balance Adjustment; Sub Brt Adjustment; Focus Adjustment - Sony trinitron PVM-1450QM Service Manual

3-9. BLUE-ONLY WHITE-BALANCE ADJUSTMENT
For the PVM-l 450QM, Items 3, 4, 5, 6, 7 and 8 are not necessary.
I. Switch the user control SW Blue Only On (to set blue-only
mode).
2. Input an all-white signal (no burst composite signal). (*!)
The luminance of the all-white signal must be 100 IRE.
CONT ...... 80%
BRT··· ...... 50%
3. Select COL TEMP/BAL.
4. Select 6500 K.
5. Adjust to the standard values with jcrn 6500K B/O (RED)j
and IC/Tl 6500K 8/0 (GREEN)
J.
6. Select COL TEMP/BAL.
7. Select 9300 K.
8. Adjust to the standard values with
IC/TI
9300K 8/0 (RED)
J
andjC!Tl 9300K B/O (GREEN)j.
9. Check that the white balance is obtained when the all-white
signal luminance is adjusted and the screen luminance is 8
NIT.
~10SUBBRTADJUSTMENT
I. Input a 525 monoscope signal.
2. CONT ...... MIN
Bfn ......... CENTER (SO%)
3. Put the unit into service mode and select
I
SUB BRIGHT
I.
4. AdjustjSUt3 BRIGHT/so that 10 IRE gives a slight glow and
IO I RE gives cut off.
3-11. FOCUS ADJUSTMENT
Note: PVM-14SOQM are adjusted with RV707 on the C board.
PVM- I 454QM are adjusted with the RV at the top of the
FBT main nuit
I. Input a 525 monoscope signal.
2. Adjust the focus to optimize the focus on the characters "30"
at the center of the screen.
3. Switch to an all-white signal and check the uniformity.
FOCUS
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PVM-1450QM/1454QM