Sony CDX-V3800 Service Manual page 26

CDX-V3800
• IC BLOCK DIAGRAMS
IC500 BU9536KS2 (SERVO Board (1/2))
52 51 50
AVDD 1
AC 2
BD 3
RF SIGNAL GEN.
VBIAS 4
E 5
F 6
AGND 7
FEN 8
FEO 9
PKC 10
BTC 11
PD 12
APC
LD
13
PLL
14 15 16
IC600 BA5966FP-FE2 (SERVO Board (1/2))
28 27 26 25 24 23 22
–
LOADING DRIVER
+
REV OUT F
FWD OUT R
+
–
+ – + –
1 2 3 4 5 6 7
CDX-V3800
49 48 47 46 45 44 43 42 41 40
39 XBUFO
38 EFLAG
DIGITAL
37 DCK
SIGNAL
36 LRCK
DIGITAL PROCESSOR
DOUTA
SERVO 35
FILTER WFCK
34
SUBCK
33
16K
32 SUBDATA
SRAM
31 SUBSYQ
30 BUSY
29
DIGITAL SERVO RESETX
COMMAND
SIGNAL 28
R/W
INTERFACE
PROCESSOR
27 DIO
17 18 19 20 21 22 23 24 25 26
21 20 19 18 17
MUTE
– + + –
– +
–
LEVEL
+
SHIFT
+ LEVEL
SHIFT
–
– +
– +
VCC
8 9 10 11 12
IC700 WM8726GED/R (SERVO Board (1/2))
LRCIN 1
DIN 2
BCKIN 3
NC
4
DIGITAL
CAP
5 SIGMA-DELTA
MODULATOR
SWICHED
VOUTR
6 CAPACITOR
GND 7
IC401 BD3806FS-E2 (MAIN Board (1/3))
32
BASS
fo:60,70,80,100,120,140,160,200Hz
Q:0.5,0.75,1,1.25
MIDDLE
fo:500Hz,1kHz
Q:1
16 15
TABLE
fo:5,7.5,10,12.5kHz
– + + –
– +
LEVEL
SHIFT
LEVEL
SHIFT
+
–
– +
VCC/2
13 14
1 2
26 26
14 SCKI
SERIAL
13 FORMAT
INTERFACE
12 DEEMPH
FSADJUST
DIGITAL
11 NC
FILTER
10 MUTE
DIGITAL
SIGMA-DELTA
MODULATOR
SWICHED VREFOUT 4
VOUTL
CAPACITOR 9
DAC DAC
8 VDD
31 30 29 28 27 26 25 24 23 22
VCC
FADER FADER FADER
2 (0~-58, (0~-58, (0~-58,
I C BUS
VCO
-∞dB) -∞dB) -∞dB)
LOGIC
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 VOLUME
(+23~-79dB,-∞dB (+23~-79dB,-∞dB
1dB STEP) 1dB STEP)
fc:40kHz fc:40kHz
ANTI-ALIASING ANTI-ALIASING
FILTER FILTER
INPUT GAIN INPUT GAIN
(0~15dB,1dB STEP) (0~15dB,1dB STEP)
MUTE MUTE
INPUT SELECTOR
(4 STEREO INCLUDE 1 ISOLATION INPUT)
3 4 5 6 7 8 9
IC400 SPCA717A-HL211 (SERVO Board (2/2))
32 31 30 29 28 27 26 25
24 DATA7
1
LATCH
23 DATA6
DATA5
22
COMP 2 21 DATA4
1.3MHz
9 20 DATA3
LPF
DAC
19
DATA2
VAA 3
18 DATA1
2X
17 DATA0
UPSAMPLE
INTERNAL
VREFIN 5
VREF
MOD.AND
VBIAS 6
MIXER
7 VBI
GENERATOR
AGND 8
9 10 11 12 13 14 15 16
21 20 19 18 17
FADER
(0~-58,
-∞dB)
GAIN+ATT
(+10~-29,
-∞dB)
2ND ORDER LPF
fc:OFF,80,120,160Hz
2ND ORDER
Q: 0.707
LPF
MIX
10 11 12 13 14 15 16