Sony HCD-DH50R Service Manual page 48

HCD-DH50R/DH70SWR
• IC Block Diagrams
– DMB20 Board –
IC1002 AK4388AET-E2
CLOCK DE-EMPHASIS
MCLK 1
DIVIDER CONTROL
8
BICK 2
INTERPOLATOR MODULATOR
AUDIO
SDTI 3 DATA
INTERFACE
8
LRCK 4
INTERPOLATOR MODULATOR
RSTN 5
SMUTE 6
CONTROL
ACKS 7
PORT
DIF0 8
IC1003 PCM1808PWR
LOW-PASS FILTER
LOW-PASS FILTER
DELTA-SIGMA
MODULATOR
1/64
DECIMATION
FILTER
VREF 1 REFERENCE
WITH
HIGH-PASS
DELTA-SIGMA
FILTER
MODULATOR
AGND 2
VCC 3
POWER
VDD 4 SUPPLY
DGND 5
CLOCK & TIMING CONTROL
SCKI 6
LRCK 7
IC1004, 2010 TK11150CSCL-G
IC2002, 2003, 2008 TK11133CSCL-G
5 4
OVER HEAT &
OVER CURRENT
PROTECTION
CONTROL
CIRCUIT –
+
BANDGAP
REFERENCE
1 2 3
HCD-DH50R/DH70SWR
16 DZF
15 DEM
14 VDD
13 VSS
12 VCOM
SCF
11 AOUTL
LPF
SCF
10 AOUTR
LPF
9 DIF1
ANTIALIAS
14 VINR
ANTIALIAS
13 VINL
12 FMT
SERIAL
11 MD1
INTERFACE
10 MD0
&
MODE/FORMAT 9 DOUT
CONTROL
8 BCK
IC5001 BH7868FS-E2
VCC1 1
S1 2
S2 3
C IN 4 BIAS 6dB
L
+
MUTE1 5 MUTE1
CV IN 6 CLAMP 6dB
H
SEL (CV/MIX) 7
Y IN 8 CLAMP 6dB
BIAS 9
BIAS
SEL (BIAS/CLAMP) 10
H
BIAS
PY/G IN 11 6dB
CLAMP
L
GND 12
PB/B IN 13
BIAS 6dB
MUTE2 14 MUTE2
PR/R IN 15 BIAS 6dB
VCC2 16
IC7004 MM1665XHBE
8 7 6 5
THERMAL
BIAS
SHUTDOWN
DRIVER
CURRENT
LIMITTER
REFERENCE
1 2 3 4
48 48
6MHz
75 32 C OUT
LPF
S-DC OUT
31 S-DC OUT
S1/S2
6MHz
LPF
75 30 CV OUT
29 CV OUT SAG
28 GND
6MHz
LPF
75
27 Y OUT
26 Y OUT SAG
25 GND
12MHz
LPF
75 24 PY/G OUT
23 PY/G OUT SAG
22 GND
12MHz
LPF
75 21 PB/B OUT
20 PB/B OUT SAG
19 GND
12MHz
LPF
75
18 PR/R OUT
17 PR/R OUT SAG
– MAIN Board –
IC500 BD3499FV-E2
A1 1
A2 2
B1 3
B2 4 INPUT
INPUT
GAIN
SELECTOR
C1 5
C2 6
D1 7
D2 8
SEL2 9
INVERTER
SEL1 10
11
VOL1
VOLUME
VOL2 12
TC2 13
TC1 14
TREBLE/
BASS
28 FIL
27 GND
PC BUS 26 SDA
LOGIC
25 SCL
24 VCC
23 OUT1
SURROUND
22 SB1
21 SR
20 SB2
19 OUT2
18 BCB1
17 BCA1
16 BCA2
15 BCB2