dbx 128 - Page 26

REC O
INPUT
(PLAY mode
Compression/ (REC mode Processor)
Expansion Processing Processor) Tape Noise
occurs before Tape F ergeneaaty Reduction
Noise Reduction iy Decoding
Processing when the Encoding EXTERNAL TR
PRE button is tn —L— l | —1L
BYP, | 5 BYP
POST ie re CoS | oe
1 r =
il fy f\
| | retour?
on 4 j JRE |
1 My] |
& { |
> od
of >2l |
uD 73] ! i
Cae) a=] i eS
O s
i a
eee
| PLY, |
ss i LM I
V Vtbisc/ 1 |
— 1 £ TAPE a oe |
ABV-THR | PLY
@ \/
: |
All tape noise re- | | All tape noise re
duction processing | duction processing
occurs here when | occurs here when
the 128's REC | the 128’s PLAY
button is In. | button is In.
ee ee ee aera L = —
Fig. 14 — Signal Flow Diagram
Compression/Expansion
Processing occurs after
Tape Noise Reduction
Processing when the
POST button is In.
PRE
POST
eR 8
i
|
|
COMP/EXP
|
Re
LEVEL
ae ee ee eee
o_o LINEAR/
{ ABV-THR
dbx Il Tape Noise Reduction REC and PLAY processing always stays in the same position relative to the tape machine.
However, compression/expansion processing may be done before or after tape noise reduction processing, depending on the
setting of the PRE and POST buttons. (NOTE: Lines show signal flow, not actual connections.)
PLY
OUTPUT
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