Sony BVP-550 Maintenance Manual page 740

4-3. Overall Electrical Alignment
4-3-8. TEST2 Adjustment
4-3-8. TEST2 Adjustment
Equipment : Oscilloscope
Test Point : TP52 (GND:GND (A))/
Extension board (extending VA-163)
Preparation:
• Extend VA-163 board with EX-464 board.
Adjustment Procedures:
1. Set the DISP switch (on the side panel) to MENU
while holding down the MENU SEL switch (on the
front panel).
2. Set the menu as follows.
MENU : System config
PAGE : PR/VA/TEST (S3)
: TEST → 2
ITEM
3. Set the menu as follows, and adjust the TEST2 high
level by using the MENU SEL switch.
MENU : System config
PAGE : PR/VA/TEST (S3)
ITEM : TEST2 HI
Specifications: A = 880 ±5 mV
4. Set the menu as follows, and adjust the TEST 2 middle
level by using the MENU SEL switch.
MENU : System config
PAGE : PR/VA/TEST (S3)
ITEM : TEST2 MID
Specifications: B = 290 ±5 mV
4-30 (E)
File Store:
Execute the file store. Press the MENU SEL switch to
execute.
MENU : Triming File
PAGE : Triming File (T1)
ITEM : File Store
Resetting after Adjustment:
• Set the menu as follows.
MENU : System config
PAGE : PR/VA/TEST (S3)
: TEST → Off
ITEM
BVP-550