Aiwa CDC-R504MP Service Manual page 33

IC401 BD3809FS (MAIN Board)
32 31 30 29 28
2
I C BUS
VCO
LOGIC
BASS
fo:60,70,80,100,120,140,160,200Hz
Q:0.5,0.75,1,1.25
MIDDLE
fo:500Hz,1kHz
Q:1
TABLE
fo:5,7.5,10,12.5kHz
VCC/2
1 2 3 4 5
27 26 25 24 23
VCC
FADER FADER FADER
(0~-58, (0~-58, (0~-58,
-∞dB) -∞dB) -∞dB)
EFFECT (0dB~ EFFECT (0dB~
+20dB,2dB STEP) +20dB,2dB STEP)
TONE TONE
PASS PASS
BASS,TREBLE, MIDDLE BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP) (-15dB~+15dB,1dB STEP)
VOLUME
(+23~-79dB,-∞dB (+23~-79dB,-∞dB
1dB STEP)
fc:40kHz fc:40kHz
ANTI-ALIASING ANTI-ALIASING
FILTER
INPUT GAIN
(0~15dB,1dB STEP) (0~15dB,1dB STEP)
MUTE
INPUT SELECTOR
(4 STEREO INCLUDE 1 ISOLATION INPUT)
6 7 8 9
CDC-R504MP/X504MP
22 21 20 19 18
FADER
(0~-58,
-∞dB)
2ND ORDER LPF
fc:OFF,80,120,160Hz
Q: 0.707
MIX
VOLUME
1dB STEP)
FILTER
INPUT GAIN
MUTE
10 11 12 13 14
17
GAIN+ATT
(+10~-29,
-∞dB)
2ND ORDER
LPF
15 16
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