Sony CMT-DH3 / CMT-DH5BT / CMT-DH7BT / HCD-DH3 / HCD-DH5BT / HCD-DH7BT Service Manual ▷ View online
61
HCD-DH3/DH5BT/DH7BT
IC703 MC74VHC74DTR2
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
∆ Σ
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
SCLATCH
24
OVFFLAGR
28
MCKSEL
32
BFVDD
33
BFVSS
34
TEST
35
DVDD
36
XFSIIN
LRCK
BCK
DATA
IC705 CXD9788AR
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
62
HCD-DH3/DH5BT/DH7BT
IC707 CXD9845AM
/OTW 2
GVDD_B 1
PROTECTION
LOGIC
GATE
DRIVE
GVDD_A
36
BST_A
35
PVDD_A
34
OUT_A
33
GND
32
GATE
DRIVE
OVER CURRENT
FAULT
OVER CURRENT
FAULT
/SD 3
PWM_A 4
PWM_B 6
/RESET_AB 5
/RESET_CD 15
PWM_C 14
M1 13
M2 12
GND 11
GND 8
GND 9
VREG 10
OC_ZDJ 7
PROTECTION
&
RESET LOGIC
OLP
OTP
OTP
CB3C
TIMING
CONTROL
STUCK
DETECT
STUCK
DETECT
STUCK
DETECT
REGULATOR
STUCK
DETECT
/HIZ_LS
/OCH
/OCL
/RESET
/HIZ_HS
/UVP
PROTECTION
LOGIC
GVDD_C
PWM_D 16
VDD 17
18
GATE
DRIVE
BST_C
27
PVDD_C
26
OUT_C
25
GND
24
GATE
DRIVE
OVER CURRENT
FAULT
OVER CURRENT
FAULT
TIMING
CONTROL
/HIZ_LS
/OCH
/OCL
/RESET
/HIZ_HS
/UVP
PROTECTION
LOGIC
GATE
DRIVE
BST_B
28
PVDD_B
29
OUT_B
30
GND
31
GATE
DRIVE
OVER CURRENT
FAULT
OVER CURRENT
FAULT
TIMING
CONTROL
TIMING
CONTROL
/HIZ_LS
/OCH
/OCL
/RESET
/HIZ_HS
/UVP
PROTECTION
LOGIC
GATE
DRIVE
BST_D
20
GVDD_D
19
PVDD_D
21
OUT_D
22
GND
23
GATE
DRIVE
OVER CURRENT
FAULT
OVER CURRENT
FAULT
TIMING
CONTROL
TIMING
CONTROL
/HIZ_LS
/OCH
/OCL
/RESET
/HIZ_HS
/UVP
PROGRAMMABLE
CURRENT SENSE
TEMPERATURE
WARNING/ERROR
2
4
/HIZ_HS
4
/HIZ_LS
4
/OCH
4
/OCL
GVDD_D
GVDD_C
GVDD_B
GVDD_A
VREG
4
/RESET
VREG
UNDER
VOLTAGE
PROTECTION
POWER-UP
RESET
/UVP
GVDD_A
GVDD_D
GVDD_B
GVDD_C
VREG
63
HCD-DH3/DH5BT/DH7BT
– JACK Board –
IC702 M65850FP-E1
OSCILLATOR
1/2 VCC
AUTO
RESET
LPF1
MAIN
CONTROL
A/D
20KBIT
SRAM
LPF2
D/A
2
3
4
5
6
7
8
9
10
11
15
14
13
12
CLOCK
RESET
MO
MI
D1
DO0
DO1
VCC
16
NC
CLOCK
REF
OP2IN
OP2OUT
LPF2IN
LPF2OUT
LPF1IN
1
NC
LPF1OUT
OP1OUT
OP1IN
CC1
CC2
GND
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
COUNTER
READ
ADDRESS
COUNTER
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
AD
DRIVER
AD2 59
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
SG11
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
GR11
42
GR12
43
GR13
44
GR14
45
GR15
46
GR16
47
VEE
48
– PANEL Board –
IC902 PT6302LQ-010
64
HCD-DH3/DH5BT/DH7BT
CONSTANT
CURRENT
SOURCE
2
FB
1
VDD
4
VCC
5 DRAIN
8 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
Q
Q
RESTARTING
TRIGGER
R
S
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
– POWER Board –
IC601 MIP2F20MS1SO
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