Betacam Pb Adjust Mode (A3) - Sony DNW-A75 Maintenance Manual

4-2-11. BETACAM PB ADJUST Mode (A3)

The A3 : BETACAM PB ADJUST mode is used to adjust
the PB system based on a Betacam/Betacam SP format.
This mode contains the eight menus below.
A3 : BETACAM PB ADJUST
A30 : EQ VR
A32 : DM VR 1
A33 : DM VR 2
A34 : DM VR 3
A35 : DM VR 4
A36 : DM VR 5
A37 : TBC VR
A3F : NV-RAM CONTROL
Menu Tree of BETACAM PB Adjustment Mode
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Do not change the adjustment data carelessly. This may
cause a trouble. For the actual adjustment, refer to the
adjustment method described in the maintenance manual
part 2, volume-1.
If you have changed the adjustment data carelessly,
execute ALL DATA PREVIOUS in A3F : NV-RAM
CONTROL menu or turn off the power of this unit without
selecting A3F : NV-RAM CONTROL menu.
Never execute SAVE ALL ADJUST DATA.
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DNW-A75's Betacam/Betacam SP PB function is for the
NTSC (525/60) system. But the PAL (625/50) system can
be simple playback.
DNW-A75P's Betacam/Betacam SP PB function is for the
PAL (625/50) system. But the NTSC (525/60) system can
be simple playback.
To change the adjustment data manually
(1) When seeing on the superimposed display, turn the
search dial to set the * mark to the item to be adjusted.
When seeing in the time data display area, turn the
search dial to display the item to be adjusted.
(2) To increase or decrease the adjustment data, turn the
search dial while pressing the JOG button.
DNW-A75/A75P
4-2-11. BETACAM PB ADJUST Mode (A3)
To return the adjustment data to the former state
Execute ALL DATA PREVIOUS in A3F : NV-RAM
CONTROL menu.
n
The current adjustment data can not return to the former
state after executing SAVE ALL DATA ADJUST DATA.
To save the adjustment data
Execute SAVE ALL ADJUST DATA in A3F : NV-RAM
CONTROL menu.
n
In a time data display area, the adjustment item name on
the superimpose picture is omitted during display as
follows:
8 GAIN
RF GAIN
GUARD BAND 8 GUARD
METAL 8 M
OXIDE 8 O
A30 : EQ VR
BETACAM PB ADJUST MODE
A30:EQ VR
*
RF GAIN METAL-Y-A 58
RF GAIN METAL-Y-B 59
RF GAIN METAL-C-A 48
RF GAIN METAL-C-B 4D
RF GAIN OXIDE-Y-A 72
RF GAIN OXIDE-Y-B 75
RF GAIN OXIDE-C-A 5A
RF GAIN OXIDE-C-B 5C
This menu is used to adjust the gain of a PB RF amplifier
(on the EQ-75 board) based on the Betacam/Betacam SP
format.
There are adjustment data for metal and oxide tapes. Each
adjustment data is provided proportionally to the number
of heads (Y-A, Y-B, C-A, and C-B).
4-2. TAPE Maintenance Mode (M0)
4-75