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6-89
GY-2120WD/WS
RF02
PB Level Adjust (RF adjustment command)
RF03
PB PLL Adjust (RF adjustment command)
RF04
PB Equalizer Adjust (RF adjustment command)
Function:
RF02: Adjusts the PB level.
RF03: Adjusts the VCO free-running frequency of a PB PLL circuit.
RF04: Adjusts the gain and phase in a PB equalizer circuit.
Operation:
The commands above are the same in operation.
(1) Enter command.
After the title, the following message is then displayed on the screen.
Set YR5-1 (Alignment Tape)
Are you ready (y/n/else=Eject)?
*
To stop the execution of adjustment, press the N key.
*
To eject of cassette tape, press a key except Y and N.
(2) Insert alignment tape YR5-1 into this unit.
*
Do not use tapes other than YR5-1. It is impossible to perform this adjustment properly in this case.
*
To move the tape address during adjustment start, use the control software of GY-2120. (Refer to Section 1-
10.)
(3) Press the Y key to initiate adjustment. During adjustment, the message
“Adjusting.....” is displayed on the screen.
*
Press the Y key without inserting a tape to display the message again.
*
Message “# Adjust Incomplete (Tape end detected) #” is displayed on the screen, rewind the tape to tape top,
then readjust.
(4) Message “Adjust Complete” is displayed on the screen when the adjustment succeeds.
Message “# Adjust Incomplete #” is displayed on the screen when the adjustment fails.
(5) To save adjustment data in an NV-RAM (Non-volatile RAM), execute command RF07
(RF NV-RAM Save).
*
After other RF adjustment, RF adjustment data can be collectively saved in an NV-RAM.
To return the adjustment data to the state before adjustment, execute command RF08 (RF NV-RAM Load).
*
All other RF adjustment data that has not been saved in the NV-RAM is also returned when command RF07 is
executed.
6-2. Description of Commands
Examples:
.
For RF02 (When the adjustment succeeds)
------>rf02
RF Adjust [Auto Adjust]
PB Level Adjust
Set YR5-1 (Alignment Tape)
Are you ready (y/n/else=Eject)? Yes
Adjust Complete
Ach PB Level 75
Bch PB Level 7E
Cch PB Level 75
Dch PB Level 81
------>_
.
For RF02 (When the adjustment fails)
------>rf02
RF Adjust [Auto Adjust]
PB Level Adjust
Set YR5-1 (Alignment Tape)
Are you ready (y/n/else=Eject)? Yes
# Adjust Incomplete #
Ach PB Level 80
Bch PB Level 70
Cch PB Level 80
Dch PB Level 60
------>_
Summary of Contents for GY-2120WD
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Page 437: ...7 3 GY 2120WD WS Index Mechanical Deck Overall Block 6 7 9 8 2 1 3 4 5 ...
Page 469: ...8 1 GY 2120WD WS 8 1 Section 8 Block Diagrams Frame Wiring ...
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