Tascam 388 Studio 8 - Dbx Pcb Adjustment

1-6. DBX PCB ADJUSTMENT
NOTES:
*This sectíon adjustment is not usually needed
unless an adjustor{s) have been changad or a
component(s) on the DBX PC board have
sustained damage, sincethe DBX PC board has
been precisely adjusted ¡n the factory.
*Turn the deck OFF to prevent accidental
damage when removing or repiacing DBX PC
board.
1. Apply +12 V to J112-2 and -12 V to J112-4
on the DBX PCB.
2. Apply Low signal to J211-1 and J411-1
to turn DBX on.
3. Set all trim pots to the center position.
Adjustment Point
REF. NO.
FUNCTION
R107/R207/R307/R408
Decoding Level
R108/R208/R308/R408 Encoding Level
R118/R218/R318/R418 VCASymmetry
R135/R235/R335/R435
RMS Symmetry
1-6-1. Location of the DBX PCB Adjustments
ROS RI07 RIOS
W I20
\"
TPOI
(©)
RII8
JI IO JIM J2I0
I 6 1 4 1 6
R20e R207 R235 R335 R307 R308
/
TP02
cvi
O
CVI
3
(g)
R2I8
J2I I
\
TP03
(©)
R3I8
R40e R407 R435
/
TP04
(g)
R4I8
J3I0 J3Í Í J4I0 J4I I JI I2
I 6 1 4 1 6 1 f 1 4
Fig. 1-6-1 DBX PCB Adjustment Point
1 29