Sony BVW-55 Maintenance Manual page 207

A32 : DM VR 1
This menu is used to adjust the frequency characteristics of
a primary cosine equalizer (DM-121 board).
There are adjustment items for metal and oxide tapes.
Each adjustment item is provided proportionally to the
number of heads (Y-A, Y-B, C-A, and C-B).
Example of display
BETACAM PB ADJUST MODE
A32:DM VR 1
*
EQ1 METAL-Y-A 7F
EQ1 METAL-Y-B 81
EQ1 METAL-C-A 77
EQ1 METAL-C-B 81
EQ1 OXIDE-Y-A AD
EQ1 OXIDE-Y-B AF
EQ1 OXIDE-C-A 94
EQ1 OXIDE-C-B 9D
A33 : DM VR 2
This menu is used to adjust the frequency characteristics of
a secondary cosine equalizer (main) (DM-121 board).
There are adjustment items for metal and oxide tapes.
Each adjustment item is provided proportionally to the
number of heads (Y-A, Y-B, C-A, and C-B).
Example of display
BETACAM PB ADJUST MODE
A33:DM VR 2
*
MAIN METAL-Y-A BC
MAIN METAL-Y-B BC
MAIN METAL-C-A 91
MAIN METAL-C-B 91
MAIN OXIDE-Y-A A8
MAIN OXIDE-Y-B A8
MAIN OXIDE-C-A A0
MAIN OXIDE-C-B A0
BVW-55 P2
A34 : DM VR 3
This menu is used to adjust the frequency characteristics of
a secondary cosine equalizer (sub) (DM-121 board).
There are adjustment items for metal and oxide tapes.
Each adjustment item is provided proportionally to the
number of heads (Y-A, Y-B, C-A, and C-B).
Example of display
BETACAM PB ADJUST MODE
A34:DM VR 3
*
SUB METAL-Y-A A4
SUB METAL-Y-B A4
SUB METAL-C-A 70
SUB METAL-C-B 70
SUB OXIDE-Y-A B6
SUB OXIDE-Y-B B6
SUB OXIDE-C-A AA
SUB OXIDE-C-B AA
A35 : DM VR 4
This menu is used to adjust the guard band width and to set
the DC offset level of an over-modulation compensation
circuit.
There are adjustment items for metal and oxide tapes.
Each adjustment item is provided proportionally to the
number of video channels (Y and C).
Example of display
BETACAM PB ADJUST MODE
A35:DM VR 4
*
GUARD BAND METAL-Y 22
GUARD BAND METAL-C 1A
GUARD BAND OXIDE-Y 26
GUARD BAND OXIDE-C 2F
OMC DC METAL-Y E4
OMC DC METAL-C D0
OMC DC OXIDE-Y D0
OMC DC OXIDE-C D0
2-2. TAPE Maintenance Mode (M0)
2-2-5. BETACAM PB ADJUST Mode (A3)
2-31