Sony HDW-750 Maintenance Manual page 525

11-3-4. RF System Adjustment Mode
(A1 : RF ADJUST)
This item adjusts the RF system automatically.
The data display appears while the STOP button is being pressed. It is
not displayed while the adjustment is in progress.
Operating procedure
1. Let the display show the top menu of VTR MAINTE menu.
(Refer to Section 11-2-2.)
2. Press the rotary encoder. (When a cassette tape is inserted, it is
ejected automatically.)
3. Select "A1 : RF ADJUST" and press the rotary encoder. The RF
ADJUST MENU display appears.
n
In order to save the respective adjustment data, select A1F : NV-
RAM CONTROL and execute "SAVE ALL ADJUSTMENT
DATA".
To return the adjustment data to the original data before starting
adjustment, execute "RESTORE PREVIOUS DATA" on the
A1F : NV-RAM CONTROL.
n
If the message "INCOMPLETE" is displayed in the automatic
adjustment, do not save the adjustment data in the NV-RAM
(IC1104/EQ-88 board).
A11 : EQUALIZER
Adjusts the playback level (VC) of the PB heads, and the gain (FQ)
and the phase (PH) of the playback equalizer circuit.
1. Select "A11: EQUALIZER" on the RF ADJUST MENU display
and press the rotary encoder.
When the STOP button is pressed at this timing, the adjustment
data as of this timing is displayed.
(XX, YY and ZZ are the 1-byte data.)
HDW-750/750CE V1
11-3. Contents of Menus
RF ADJUST MENU
A11:EQUALIZER
A12:REC CURRENT
A13:PLAY PLL
A14:FWD PLL
A15:REV PLL
A16:A/D GAIN
A17:A11-A16 ALL ADJUST
A1F:NV-RAM CONTROL
RF ADJUST MENU
A11:EQUALIZER
PUSH RE TO ADJUST
CH RSLT CH
A B
C D
E F
G H
ALL
RF ADJUST MENU
A11:EQUALIZER
PUSH RE TO ADJUST
ch VC FQ PH ch VC FQ PH
A XX YY ZZ B
C XX YY ZZ D
E XX YY ZZ F
G XX YY ZZ H
ALL
RSLT
XX YY ZZ
XX YY ZZ
XX YY ZZ
XX YY ZZ
11-23