Sony HCD-DH50R, Руководство по обслуживанию

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