Sony CMT-HPR90 / CMT-HPR99XM / HCD-HPR90 / HCD-HPR99XM Service Manual ▷ View online
37
HCD-HPR90/HPR99XM
•
IC Block Diagrams
– CD Board –
IC203
BH18LB1WG-TR
IC402
BA5947FM-E2
THERMAL
PROTECTION
VOLTAGE
REFERENCE
CONTROL
BLOCK
OVER CURRENT
PROTECTION
VIN 1
GND 2
STBY 3
NC
4
VOUT
5
+
–
1
LEVEL SHIFT
MUTING
D
15
16
+ –
+
–
D
D
17
18
D
19
20
VREF
21
22
23
24
25
26
27
28
PREVCC
OPOUT
OUTVREF
CH4CAPA
CH4IN
CH3FIN
CH3RIN
GND
MUTE
POWVCC
CH3OUTF
CH3OUTR
CH4OUTF
CH4OUTR
OPIN
–
2
OPIN+
INTERFACE
14
13
D
12
11
D
10
9
8
7
6
CH2FIN
CH2RIN
GND
5
4
CH1FIN
CH1RIN
VREFIN
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
INTERFACE
D
D
3
SW
INTERFACE
38
HCD-HPR90/HPR99XM
– MAIN Board –
IC1204
MM1615ANLE
IC1302
PST3629NR
IC1501
BD3870FS-E2
2
5
VIN
4
VOUT
GND
1
CONT
3
NOISE
DRIVER
THERMAL
SHUTDOWN
BIAS
REFERENCE
+
–
CURRENT
LIMITTER
LIMITTER
VDD 2
OUT 1
GND 3
+
–
VREF
CD
5
NC
4
39
HCD-HPR90/HPR99XM
IC1505
MC14052BDTR2
– XM Board –
IC041
AK4384ET-E2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2X0
X2
VDD
X1
XCOM
X0
X3
A
B
VSS
VEE
INH
2X1
2X3
2XCOM
2X2
1
2
3
4
5
7
6
8
9
10
12
13
14
15
16
11
CLOCK
DRIVER
SCF
LPF
LPF
SCF
LPF
LPF
ATT
ATT
DE-ENPHASIS
CONTROL
8X
INTERPOLATOR
8X
INTERPOLATOR
AUDIO
DATA
INTERFACE
µP
INTERFACE
∆Σ
MODULATOR
∆Σ
MODULATOR
MCLK
DZFL
DZFR
DZFR
VDD
VSS
VCOM
VCOM
AOUTL
AOUTR
P/S
BICK
SDTI
SDTI
LRCK
PDN
SMUTE/CSN
ACKS/CCLK
DIF0/CDTI
40
HCD-HPR90/HPR99XM
– AMP Board –
IC701
PCM1803DBR
DELTA-SIGMA
MODULATOR
DELTA-SIGMA
MODULATOR
VINL 1
VINR 2
VREF1 3
VREF2 4
VCC
AGND
5
6
BYPAS 8
TEST 9
LRCK 10
REFERENCE
× 1/64, × 1/128
DECIMATION
FILTER
WITH
HIGH-PASS
FILTER
SERIAL
INTERFACE
&
MODE/FORMAT
CONTROL
MODE1
20
MODE0
19
FMT1
18
FMT0
17
OSR
16
SCKI
15
VDD
14
DGND
13
DOUT
12
BCK
11
CLOCK & TIMING CONTROL
POWER
SUPPLY
PDWN 7
IC702
NJM2871BF33-TE2
5
VIN
4
VOUT
2
GND
3
NOISE
BYPASS
1
CONTROL
BANDGAP
REFERENCE
THERMAL
PROTECTION
IC703
MC74VHC74DTR2
14
1
2 3
4
5
6
7
13 12 11
10
9
8
VCC
GND
CK
CLR
CK
CLR
Q
PR
Q
Q
PR
Q
D
D
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