Sony CDX-R30M Service Manual page 29

IC401 BD3806FS-FE2 (MAIN Board (1/3))
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
IC580 BA8271F-E2 (MAIN Board (3/3))
BUS ON
BUS ON
1
SWITCH
RESET
RST 2
SWITCH
BATTERY
BATT 3
SWITCH
CLK 4
VREF 5
DATA 6
GND 7
CDX-R30M/R3310/R3410/R3410S
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
14 VCC
13 RESET
12 BUS ON
11 CLK IN
10 BU IN
9 DATA IN
8 DATA OUT
17
GAIN+ATT
(+10~-29,
-∞dB)
2ND ORDER
LPF
15 16
29