Akai GX-F31

VII. AMPLIFIER ADJUSTMENT
VRIO
(Cr02)
c::Jf}VR9
~ (METAL)
FREQUENCY
RESPONSE
FREQUENCY
RESPONSE
(NORMAL)
VRllb(RJ
+5VDC
0
B
@= □- c ± c cl
VRI l(Ll
---
-
~I
VR4 VR4b
(L)
(Rl
VU METER
SENS
3-6
TP3
•
(~VRB(L)
REC LEVEL
(~ VRBb(RJ
•
TP2(LJ
HAl2038
■
TP2b (RJ
p
GND
MPX FILTER
FL4(Ll
~
~
FL3(Ll
BIAS FILTER
MPX FILTER
FL4b(R)
FL3b(RJ
BIAS FILTER
TP5
■
TPI
(L) ■
PB LEVEL
VR5(L)
(~ij
VR6{Ll
PB EQ
PB EQ
----
VR7(L)
A
OP AMP
OFF-SET
VOLTAGE
'I
VR7b(Rl
TPlb VR6b(Rl
(Rl• 1
I
-
.._,,
{~
VR5b{R)
PB LEVEL
Fig. 4 Pre Amp P.C Board