Sony CDX-V3800, Service Manual

Page: 26 / 66

26 26
CDX-V3800
CDX-V3800
IC500 BU9536KS2 (SERVO Board (1/2))
• IC BLOCK DIAGRAMS
51 50 52
1
RF SIGNAL GEN.
DIGITAL
SIGNAL
PROCESSOR
APC
AVDD
AC
BD
VBIAS
E
F
AGND
FEN
FEO
PKC
BTC
PD
LD
EFLAG
EQO RFI CAGC TEN TEO SC TZCRFM RFRPRFN
JUMPO
TDOUT
SDIN
SDOUT FDOUT
CLVOUT
CLK LON
CLK88
ASY FCO PCO
MCK
DGND XO XI DVDD XPLCK
XBUFO
DCK
LRCK
DOUTA
WFCK
SUBCK
SUBDATA
SUBSYQ
BUSY
RESETX
R/W
DIO
SERVO SIGNAL
GEN.
2
49 48 47 46 45 44 43 42 41 40
3
4
5
6
7
8
9
10
11
12
13
14 15 16
27
28
29
30
31
32
36
37
38
33
34
35
39
17 18 19 20 21 22 26 25 24 23
PLL
DIGITAL
SERVO
FILTER
DIGITAL SERVO
SIGNAL
PROCESSOR
16K
SRAM
COMMAND
INTERFACE
+ –
+ – + –
REV
FWD
OUT F
OUT R
+
–
+
–
+
–
+ –
+ –
+
–
MUTE
+ – + – + –
+ – + – + – + –
LEVEL
SHIFT
LEVEL
SHIFT
– +
LEVEL
SHIFT
– +
LEVEL
SHIFT
– +
– +
VCC
LOADING DRIVER
24 23 22 21 20 19 18 17 16 15
4 5 6 7 8 9 10 11 12 13 14 2 1 3
27 28 26 25
REV OPIN4(+) OPIN4(–) OPOUT4 OPIN3(+) OPIN3(–) OPOUT3 MUTE BIAS GND VO3(–) VO3(+) VO4(–) VO4(+)
FWD
OPIN1(+) OPIN1(–)
OPOUT1
OPIN2(+) OPIN2(–)
OPOUT2
VCC
VOL(–) VOL(+) VO2(–) VO2(+) VO1(–) VO1(+)
SERIAL
INTERFACE
DIGITAL
FILTER
LRCIN
DIN
BCKIN
NC
CAP
VOUTR
GND
DIGITAL
SIGMA-DELTA
MODULATOR
SWICHED
CAPACITOR
DAC
1
2
3
4
5
6
7
DIGITAL
SIGMA-DELTA
MODULATOR
SWICHED
CAPACITOR
DAC
SCKI
FORMAT
DEEMPH
MUTE
NC
VOUTL
VDD
14
13
12
10
11
9
8
FSADJUST
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
CVBS/Y
32
AGND
31
TEST
30
HSYNC
29
VSYNC
28
VDD
27
DGND
26
CLKOUT
25
SLEEP
9
9
LUMA
10
CBSWP
11
MASTER
12
MODEA
13
MODEB
14
CLK
15
XTALO
16
1
COMP 2
VREFOUT 4
VAA 3
VBIAS 6
VREFIN 5
DAC
LATCH
1.3MHz
LPF
2X
UPSAMPLE
MOD.AND
MIXER
INTERNAL
VREF
7
AGND 8
VBI
GENERATOR
24
23
22
21
20
19
18
17
32 31 30 29 28 27 26 25 24 23 22
I
2
C BUS
LOGIC
VCO
MIX
FADER
(0~-58,
- ∞ dB)
FADER
(0~-58,
- ∞ dB)
FADER
(0~-58,
- ∞ dB)
FADER
(0~-58,
- ∞ dB)
VOLUME
(+23~-79dB,- ∞ dB
1dB STEP)
VOLUME
(+23~-79dB,- ∞ dB
1dB STEP)
INPUT GAIN
(0~15dB,1dB STEP)
INPUT SELECTOR
(4 STEREO INCLUDE 1 ISOLATION INPUT)
INPUT GAIN
(0~15dB,1dB STEP)
ANTI-ALIASING
FILTER
ANTI-ALIASING
FILTER
MUTE
fc:40kHz fc:40kHz
MUTE
6 7 8 9 10 11 3 4 5 2 1
DGND
AGND
FIL AN
AP2 AP1
B1 B2 C1 C2 NC NC NC NC NC NC NC
12 14 16 13 15
SDA SCL MUTE SEL ADJ VCC OUTF1 OUTR1 OUTF2 OUTR2 NC NC NC OUTS1 OUTS2
21 20 19 18 17
VCC
VCC/2
TONE
PASS
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
TONE
PASS
EFFECT (0dB~
+20dB,2dB STEP)
EFFECT (0dB~
+20dB,2dB STEP)
2ND ORDER
LPF
2ND ORDER LPF
fc:OFF,80,120,160Hz
Q: 0.707
BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP)
BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP)
GAIN+ATT
(+10~-29,
-
∞
dB)
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