Rf Adjust Mode (A1) - Sony DNW-A22 Maintenance Manual

4-2-7. RF ADJUST Mode (A1)

The A1 : RF ADJUST mode is used to adjust the RF
system.
In this unit, seven menus are available.
A1 : RF ADJUST
A11 : EQUALIZER
A13 : PLAY PLL
A14 : FWD PLL
A15 : REV PLL
A16 : A/D GAIN
A17 : A11-A16 ALL ADJUST
A1F : NV-RAM CONTROL
Menu Tree of RF System Adjustment Mode
n
If abnormality exists in the servo system, each menu in A1
: RF ADJUST does not function normally.
A11 : EQUALIZER
A13 : PLAY PLL
A14 : FWD PLL
A15 : REV PLL
A16 : A/D GAIN
These menus are used to perform the automatic adjust-
ments below.
A11 : EQUALIZER
This menu automatically adjusts the PB RF levels (VC)
and PB equalizers' gain (EQ) and phase (PH) for the PB
heads (channels A2, A6, B2, and B6).
A13 : PLAY PLL
This menu automatically adjusts the VCO free-running
frequency in a PB PLL circuit for PLAY mode.
A14 : FWD PLL
This menu automatically adjusts the VCO free-running
frequency in a PB PLL circuit for F FWD mode.
A15 : REV PLL
This menu automatically adjusts the VCO free-running
frequency in a PB PLL circuit for REV mode.
A16 : A/D GAIN
This menu automatically adjusts the gain in converting a
PB RF signal from analog to digital.
DNW-A22/A22P
RF ADJUST MODE
A11:EQUALIZER
Auto Adjust (Push SET)
ch RSLT ch RSLT
A2 B2
A6 B6
*
ALL
A11 : EQUALIZER
RF ADJUST MODE
A13:PLAY PLL
Auto Adjust (Push SET)
ch RSLT ch RSLT
A2/6 B2/6
*
ALL
A13 : PLAY PLL
RF ADJUST MODE
A14:FWD PLL
Auto Adjust (Push SET)
ch RSLT ch RSLT
A2/6 B2/6
*
ALL
A14 : FWD PLL
RF ADJUST MODE
A15:REV PLL
Auto Adjust (Push SET)
ch RSLT ch RSLT
A2/6 B2/6
*
ALL
A15 : REV PLL
RF ADJUST MODE
A16:A/D GAIN
Auto Adjust (Push SET)
ch RSLT ch RSLT
A2/6 B2/6
*
ALL
A16 : A/D GAIN
n
Right side of above displays are examples while pressing
the STOP button.
Actually, each adjustment data is displayed at the "xx"
portion.
4-2. TAPE Maintenance Mode (M0)
4-2-7. RF ADJUST Mode (A1)
RF ADJUST MODE
A11:EQUALIZER
Auto Adjust (Push SET)
ch VC EQ PH ch VC EQ PH
A2 xx xx xx B2 xx xx xx
A6 xx xx xx B6 xx xx xx
*
ALL
RF ADJUST MODE
A13:PLAY PLL
Auto Adjust (Push SET)
ch VR ch VR
A2/6 xx B2/6 xx
*
ALL
RF ADJUST MODE
A14:FWD PLL
Auto Adjust (Push SET)
ch VR ch VR
A2/6 xx B2/6 xx
*
ALL
RF ADJUST MODE
A15:REV PLL
Auto Adjust (Push SET)
ch VR ch VR
A2/6 xx B2/6 xx
*
ALL
RF ADJUST MODE
A16:A/D GAIN
Auto Adjust (Push SET)
ch VR ch VR
A2/6 xx B2/6 xx
*
ALL
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