JVC AX-Z1010TN Service Manual page 11

Digital Pure A TYPE ft
If an amplifier is equipped with the built-in D/A con-
verter, ''signal time base control" becomes easy
owing to the special characteristics of digital
signals.
Utilization of this special characteristics aliows an
amplifier to perform optimal A class operation.
Although the A class operation can be said to be
the ideal type for amplifiers, for an A class ampii-
fier with mass output, even at low level restart, a
mass current was always flowing to the power unit.
This caused a remarkable loss in ihe power unit
and generated unnecessary heat.
Digital Pure A Type 1! realizes the effective ideal
A class operation to curb unnecessary heat from
the low level to the high-level consisting of three
blocks by varying the operation current in the pow-
er unit to the optimum level for each signal.
Accordingly, a relaxing yet prowerful and silk-like
smooth sound quality can be enjoyed.
Time Base Processor by memory time shift
{circuit @ Ye nf ;
Arranged just before the D/A converter to slighily
shift the time axis of the input digital signal. _
[Prediction Signal Processor @
Creates a prediction signal from the input digital
signal based on the information obtained from the
input signal to the time base processor, and out-
Puts an operation point control signal grounded
on the created prediction signal.
[Programmable Bias Current Controller @
leceives the control signal in @ . alters the idling
current by the optical BIAS circuit and leads to the
Hi-Power Pure A class operation to curb unneces-
sary heat.
@ Input
@ Time base processor
© D/A converter
@ VOLUME
@® Power amplifier
© Output
@ Prediction signal processor
© Programmable bias current controller
COMPU LINK
REMOTE CONTROL
SYSTEM
The COMPU LINK REMOTE CONTROL SYSTEM
was deveioped by JVC. You can control each
COMPU LINK component from the remote con-
trol unit, and also perform the following advanced
operations with ease.
Automatic source selection
If the remote cable is used to connect this unit to
other JVC components with COMPU LINK-1/SYN-
CHRO terminals. By pressing the remote control
unit source selector button or the play button of
each connected equipment, the source change-
over and regenerated start can be performed au-
tomatically.
When switching from one component to another,
such as a cassette deck, turntable or CD player,
the previous component will stop playing after
about five seconds.
Synchronized recording
Synchronized recording refers to the process
whereby a cassette deck automatically com-
mences recording, in synchronization with the CD
player or turntable,
Set the cassette deck to the REC/PAUSE mode
according to the procedures in the instruction
manual.
When synchronously recording the CD player,
push the PLAY button on the CD piayer. The cas-
sette deck enters the record made the moment
the CD player starts and synchronized recording
commences.
Synchronized recording stops automatically when
the CD player stops playing.
To cancel synchronized recording, push the STOP
button of the CD player, turntable or cassette deck.
Note:
* When operating a CD player or a DAT
deck, select analog or digital system by
the COMPU LINK changeover switch of
this unit. If the switch is set to the wrong
position, desired operation cannot be per-
formed.
COMPU LINK
I//Remote /Ili
Control System
Fig. 12
AX-Z1010TN
(No. 20115) 1-11