Sony BVP-550, Maintenance Manual

Page: 519 / 924

4-29 (E)
BVP-550
4-3-7. TEST1 Adjustment
Equipment : Oscilloscope
Preparation:
• Extend VA-163 board with EX-464 board.
Adjustment Procedures:
1. WHITE BAL switch (on the side panel)
→
PRST
2. Set the DISP switch (on the side panel) to MENU
while holding down the MENU SEL switch (on the
front panel).
3. Set the menu as follows.
MENU : System config
PAGE : PR/VA/TEST (S3)
ITEM : TEST
→
1
4. Test Point : TP52 (GND:GND (A))/
Extension board
(extending VA-163)
Adjustment Point
:
1
RV50 (TEST)/VA-163 panel
Specifications : A = 880
±
2 mV
5. Set the menu as follows, and adjust the white level for
R by using the MENU SEL switch.
Test Point : TP54 (GND:GND (A))/
Extension board
(extending VA-163)
Adjustment Point:
MENU : Paint
PAGE : Video Level (P1)
ITEM : White [R]
Specifications
: A = 880
±
40 mV
6. Set the menu as follows, and adjust the white level for
B by turning the MENU SEL switch.
Test Point : TP50 (GND:GND (A))/
Extension board
(extending VA-163)
Adjustment Point:
MENU : Paint
PAGE : Video Level (P1)
ITEM : White [B]
Specifications
: A = 880
±
40 mV
Resetting after Adjustment:
• Set the menu as follows.
MENU : System config
PAGE : PR/VA/TEST (S3)
ITEM : TEST
→
Off
4-3. Overall Electrical Alignment
4-3-7. TEST1 Adjustment