Pix Level Adjustment - Sony WLL-RX55 Maintenance Manual

Y Output Level Adjustment
11. MSU-700A/750 setting:
WAVEFORM MONITOR button → ENC (Lit)
12. Y DC level adjustment
Equipment: Waveform monitor
Test Point: WF OUTPUT connector
Adjustment Point: 1RV152/VA-220 board
Adjust the 1RV152/VA-220
Adjustment:
board so that the "c" (DC level of
G-ch) and "h" (DC level of Y-ch)
are equal even if WAVEFORM
MONITOR button/MSU-700 is
set to "G" or "ENC".
(Specifications: Level difference
[for NTSC] 0 ± 1 IRE
[for PAL] 0 ± 10 mV)
13. Y video level adjustment
Equipment: Waveform monitor
Test Point: WF OUTPUT connector
Adjustment Point: 1RV151/VA-220 board
Adjustment: Adjust the 1RV151/VA-220
board so that the "b" (level of G-
ch) and "i" (level of Y-ch) are
equal even if WAVEFORM
MONITOR button/MSU-700 is
set to "G" or "ENC".
(Specifications: Level difference
[for NTSC] 0 ± 1 IRE
[for PAL] 0 ± 10 mV)
Setting after Adjustment
Perform "3-3-3. PIX Level Adjustment".
B C D
A
1
RV201
E3
2
RV206
RV152
RV204
RV151
3
TP301
RV401
TP701
S601
RV502
TP402 E5
RV501
RV701
TP602
E4
4
TP502
RV601
RV703
TP501
5
S501
VA-220 BOARD (A SIDE)
3-10 (E)
i
GND
h
E F G H
TP35
E2
TP34
RV203
TP33
E1
TP31
RV205
TP802
TP801 TP803
RV702
TP703
S701
TP702
RV704 RV706 RV707

3-3-3. PIX Level Adjustment

n
Perform "3-3-2. GRBY Output Level Adjustment" before
performing this adjustment.
Tools
. Master setup unit:
. Waveform/Vector monitor:
. Extension board:
Preparation
Change the connection of the waveform monitor to the PIX
OUTPUT connector.
Adjustment Procedure
1. MSU-700A/750 setting:
PICTURE MONITOR button → ENC (Lit)
2. Equipment:
Test Point:
Adjustment Point: 1RV301/VA-220 board
Specifications:
A
Settings after Adjustment
J
. Menu setting:
MENU: Setup
WF SEQ → 3
ITEM:
. Restore the VA-220 board to the original position.
MSU-700A, or MSU-750
Tektronix 1750A or equivalent (for
NTSC)
Tektronix 1751A or equivalent (for
PAL)
EX-854
(Sony Part No.: A-8344-228-A)
Waveform monitor
PIX OUTPUT connector
A = 100 ± 1 IRE (for NTSC)
A = 700 ± 10 mV (for PAL)
WLL-RX55