Sony CMT-DH40R / HCD-DH40R Service Manual ▷ View online
HCD-DH40R
49
IC503 S-80929CNMC-G8ZT2G
VDD 2
OUT 1
VSS 3
+
–
VREF
CD
5
NC
4
DELAY
CIRCUIT
IC504 TK11150CSCL-G
IC505, 702 TK11133CSCL-G
IC704 TK11118CSCL-G
IC505, 702 TK11133CSCL-G
IC704 TK11118CSCL-G
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
IC701 PCM1808PWR
DELTA-SIGMA
MODULATOR
DELTA-SIGMA
MODULATOR
ANTIALIAS
LOW-PASS FILTER
ANTIALIAS
LOW-PASS FILTER
AGND
VCC
2
3
3
VDD
DGND
4
5
5
LRCK 7
REFERENCE
u1/64
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
SUPPLY
SCKI 6
VREF 1
HCD-DH40R
50
IC705 CXD9788AR
12
11
10
9
8
7
6
5
4
3
VSUBC
XVSS
OUTR2
VSSR
OUTR1
VDDR
VSSL
VSSR
OUTL2
OUTL1
VSSL
VDDL
2
1
PWM
CLOCK
GENERATOR
(SECONDARY)
CLOCK
GENERATOR
(PRIMARY)
31
29
25 OVFFLAGL
26 SFLAG
27 INIT
30
S
g P
GAIN
CONTROL
INIT/
MUTE
SAMPLING
RATE
CONVERTER
FILTER &
LOW CUT
FILTER
LINER
INTERPOLATOR
'6
48
XFSOIN
47
XVDD
HPVDDL
46
45
HPOUTL1
HPVSSL
44
43
HPOUTL2
HPVDDR
42
41
HPOUTR1
HPVSSR
40
HPOUTR2
39
37
FSOCKO
38
FSOI
13
XOVSS
14
XFSOOUT
15
XOVDD
16
DVDD
17
DVSS
18
NSPMUTE
19
SOFTMUTE
20
PGMUTE
SERIAL
CONTROLLER
21
SCDT
22
SCSHIFT
23
SCLA
TCH
24
OVFFLAGR
28 MCKSEL
32 BFVDD
33 BFVSS
34 TEST
35 DVDD
36 XFSIIN
LRCK
BCK
DATA
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
HCD-DH40R
51
IC707, 708 CXD9774M
RESET 4
GND 1
GND 3
PWM BP 2
DREG RTN 5
GVDD 6
M3 7
M1 10
M2 11
M2 11
DVDD 12
DREG 8
DGND 9
DGND 14
GND 16
GND 18
PWM
RECEIVER
TIMING
CONTROL
&
PROTECTION
SD 13
OTW 15
DIGITAL
REGULATOR
PROTECTION
LOGIC
OT
&
UVP
DVDD DREG
DREG
DGND
PWM AP 17
PWM
RECEIVER
DVDD DREG
DGND
DREG
GVDD
DREG
GATE
DRIVE
GVDD B
35
GVDD B
36
BST B
33
PVDD B
32
PVDD B
31
OUT B
30
OUT B
29
GND
28
GND
34
GATE
DRIVE
OCH
OCL
TIMING
CONTROL
&
PROTECTION
DREG
GATE
DRIVE
GVDD A
20
GVDD A
19
BST A
22
PVDD A
23
PVDD A
24
OUT A
25
OUT A
26
GND
27
GND
21
GATE
DRIVE
OCH
OCL
GVDD
GVDD
– PANEL Board –
IC621 PT6302LQ-010
SEGMENT
DRIVER
GRID
DRIVER
CG-RAM
ADDRESS SELECTOR
DC-RAM
CG-ROM
8 BIT
SHIFT
REGISTER
TIMING
GENERATOR 2
TIMING
GENERATOR 1
COMMAND
DECODER
CONTROL
CIRCUIT
PORT
DRIVER
WRITE
ADDRESS
COUNTER
READ
ADDRESS
COUNTER
GR1
32
SG20
16
SG19
15
GR2
33
OSCI 50
VSS 49
VDD 56
RSTB 52
OSCO 51
AD-RAM
DUTY CONTROL
OSCILLATOR
DIGIT CONTROL
CLKB 54
DIN 55
CSB 53
P1 57
P2 58
P2 58
AD
DRIVER
AD2 59
AD1 60
AD1 60
SG4 64
SG3 63
SG2 62
SG1 61
SG35
31
SG34
30
SG33
29
SG32
28
SG31
27
SG30
26
SG29
25
SG28
24
SG27
23
SG26
22
SG25
21
SG24
20
SG23
19
SG22
18
SG21
17
SG18
14
SG17
13
SG16
12
SG15
11
SG14
10
SG13
9
SG12
8
SG1
1
7
SG10
6
SG9
5
SG8
4
SG7
3
SG6
2
SG5
1
GR3
34
GR4
35
GR5
36
GR6
37
GR7
38
GR8
39
GR9
40
GR10
41
GR1
1
42
GR12
43
GR13
44
GR14
45
GR15
46
GR16
47
VEE
48
HCD-DH40R
52
– JACK Board –
IC251 TC9488FG
2
OSC
ADPCM
DECODE
DELAY
DRAM
ADPCM
ENCODE
ADC
DAC
S/H
POST
LPF
ALC
VOLUME CONTROL
OSCC
1
VDD
3
OSCR
4
NC
5
VOL1 (CS)
6
VOL2 (SCL)
7
VOL3 (SDA)
8
NC
9
VRO
VREF
VDA
NC
ALC1
MC1N
MC1P
15
16
14
13
12
11
10
VREF
VREF
VREF
VREF
ALC
VREF
MC2P
17
MC2N
18
ALC1
19
NC
20
VSA
21
MCO
22
PRIN
23
ADIN
24
NC
25
DA
OUT
26
VOLST
27
NC
28
TEST
29
POOUT
30
VSS
– POW-SUPPLY Board –
IC601 MIP2F20MS1SO
CONSTANT
CURRENT
SOURCE
2
FB
1
VDD
4
VCC
5 DRAIN
8 SOURCE
7 SOURCE
7 SOURCE
3
CL
VCL
CLAMP CIRCUIT
(ILIMIT SETTING)
IN
ICL.LOW
VCL.OUT
ILIMIT VARIABLE
CIRCUIT
+
–
–
+
–
+
–
–
7.2V
+
–
–
2.4V
VCC UV
VCC OVP
OVERHEAT
PROTECTION
S
R
R
Q
Q
Q
RESTARTING
TRIGGER
R
S
S
Q
Q
Q
+
–
–
27%
22%
22%
FOR LIGHT LOAD
DETECTION INTERMITTENT
OSCILLATION CONTROL
GENERATOR
CLOCK
12kHz
MAXDC
5.7V
5.0V
5.0V
VDD UV
5.7V
REGULATOR
VDD CLAMP
CIRCUIT
6.6V
+
–
ILIMIT
CORRECTION
CIRCUIT
FOR
DRAIN CURRENT
DETECT
GATE DRIVER
POWER
MOSFET
AT TURNING ON
BLANKING PULSE
GENERATION CIRCUIT
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