Sharp CD-C451H (serv.man14) Service Manual ▷ View online
– 53 –
CD-C451H
IC201 RH-iX0222AWZZ:System Microcomputer (IX0222AW) (1/2)
1*
————
Output
—————
2
REC/PB
—
Record/Playback selection signal
3*
————
Output
—————
4*
CD MUT
Output
CD MUT signal
5
CD RES
Output
CD DSP RESET signal
6
CD SL-
Output
Slide return signal
7
CD SL+
Output
Slide feed signal
8
VDD
—
Power connection terminal
9
CD CQCK
Output
CD IC control signal
10
CD COIN
Output
CD IC control signal
11
CD SQOUT
Input
CD IC control signal
12
CD WRQ
Input
CD IC control signal
13
CD RWC
Output
CD IC control signal
14
SCK
Input
Main µCOM (RH-iX0223AWZZ) control signal
15
SO
Output
Main µCOM (RH-iX0223AWZZ) control signal
16
SI
Input
Main µCOM (RH-iX0223AWZZ) control signal
17
RESET
Input
Main µCOM (RH-iX0223AWZZ) control signal
18
STROBE
Input
Main µCOM (RH-iX0223AWZZ) control signal
19
CD PU-IN SW
Input
Pickup position detection
20
AVSS
—
To be connected to GND
21
CD DRF
Input
CD RF level detection input
H: When RF level is H
22
T1 RUN
Input
Tape 1: Rotation pulse input
23
T2 RUN
Input
Tape 2: Rotation pulse input
24
SPEANA 5
Input
63Hz BPF spectrum analyzer input
25
SPEANA 4
Input
250Hz BPF spectrum analyzer input
26
SPEANA 3
Input
1kHz BPF spectrum analyzer input
27
SPEANA 2
Input
4kHz BPF spectrum analyzer input
28
SPEANA 1
Input
16kHz BPF spectrum analyzer input
29
AVDD
—
A/D converter analog positive power
30
AVREF
—
A/D converter reference power
31
TAPE CUM SW
Input
Tape mechanism cam SW input terminal
32*
————
—
No connected
33
VSS
—
To be connected to GND
34
X1
—
Main clock terminal, not used
35
X2
—
Main clock terminal, not used
36*
LINE MUT
Output
Line mute output, not used
37
SURROUND MUT
Output
Surround mute output
38
CENTER MUT
Output
Center SP output mute output
39
SYSTEM MUT
Output
System mute output
40
MIC
Input
Mic input terminal (for detection)
41
EN
Output
DOLBY PRO logic IC control signal
42
DATA
Output
DOLBY PRO logic IC control signal
43
CLK
Output
DOLBY PRO logic IC control signal
44
SP DET
Input
Speaker output error detection input
Occurrence of error: L
45
POWER
Output
Set power control output
Power ON: H
46*
RELAY
Output
Speaker output relay control output
Relay ON: H
47
TAPE TS CrO SW
Input
Tape mechanism 2 CrO
2
detection input
CrO
2
: H
48
VSS
Input
Digital GND terminal
49
TAPE F/R SPEED
Output
Tape feed/return
50
TAPE SOL
Output
Tape mechanism solenoid control output
Attraction: L
51
TAPE MOTOR
Output
Tape mechanism motor control output
Terminal Name
Pin No.
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
CD-C451H
– 54 –
IC201 RH-iX0222AWZZ:System Microcomputer (IX0222AW) (2/2)
52
VDD
—
Positive power supply
53
CD O/C SW
Input
CD open-close switch input
54
DISC No. SW
Input
CD turntable position detection input
55
CD U/D SW
Input
CD mechanism UP/DOWN chucking detection input
56
T1 CrO SW
Input
Tape 1 CrO
2
detection SW input
57
QS-AC
Output
Q-SOUND position selection output
58
QS-MO
Output
Q-SOUND position selection output
59
QS-BYPASS-AR
Output
Q-SOUND position selection output
60*
–
61
QS-PASS
Input
Q-SOUND Detection input, not applied in this machine
62
SPAN 9K/10K
Input
Tuner span selector 9 kHz/10 kHz selection input
63
DOLBY
Input
DOLBY detection input, not applied in this machine
64
SRS
Input
SRS detection input, not applied in this machine
65
BALANCE
Input
BALANCE detection input, not applied in this machine
66
4SP
Input
4SP detection input, not applied in this machine
67
TAPE A-FP SW
Input
Tape A side miserase preventing SW input
68
TAPE B-FP SW
Input
Tape B side miserase preventing SW input
69
TAPE PB MUT
Output
Tape playback mute output
70
TAPE T1/T2
Output
Tape 1/2 selection
71
VLOAD
—
To be connected to GND
72
TAPE BIAS
Output
Tape bias circuit selection
73*
SRS ON/OFF
Output
SRS Control
74*
SRS 1/2
Output
SRS Control
75
TAPE BEET CUT
Output
Beat cancel signal control output
76*
TAPE HI SPEED
Output
Tape mechanism High-Low speed selection
77*
————
—
Not used
78*
————
—
Not used
79*
TAPE PB EQ
Output
Tape circuit playback Eq selection
80
TAPE REC MUT
Output
Tape circuit record muting output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Terminal Name
Pin No.
Input/Output
Function
1
REC/PB
CD MUTE
CD RES
SL-
SL+
CQ CK
COIN
SQ OUT
WRQ
RWC
P94
CD/TAPE CONTROL
µ
PD 78043A
P93
P92
P91
P90
P81
P80
Vdd
SCK 0
SO 0
Si 0
P24
P23
SCK 1
SO 1
Si 1
RESET
P74
P73
AVss
ANi 7
ANi 6
ANi 5
ANi 4
SRS
DOLBY
SPAN 9K
QS–P
QS–BYPASS-AR
QS–MO
QS–AC
T1 Cro2
CD U/D SW
DISC No. SW
CD O/C SW
TA MOTOR
TA SOL
F/R SPEED
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
PU-IN SW
MAIN
µ
COM
DRF
T1 RUN
T2 RUN
SPE 5
17
18
19
20
21
22
23
24
REC MUT
PB EQ
Hi SPEED
BEET CUT
BiAS
SRS ON/OFF
SRS 1/2
T1/T2
PB MUT
T2 BFP
T2 AFP
4SP
BALANCE
ANi 3
ANi 2
ANi 1
ANi 0
AVdd
AVref
P04
Vss
X1
X2
P37
P36
P35
P34
P33
40
39
38
37
36
35
34
33
32
31
30
39
38
37
36
35
34
33
32
31
30
29
28
28
27
26
25
26
25
65
66
67
68
69
70
71
72
73
74
75
66
67
68
69
70
71
72
73
74
75
76
77
77
78
79
80 P95
79
80 P95
P96
P97
P100
P101
P102
P103
P104
P105
V Load
P106
P107
P110
P111
P112
P113
SPE 4
SPE 3
SPE 2
SPE 1
TACUM SW
LINE MUT
SUR MUT
CEN MUT
SYS MUT
MIC
T2CrO
RELAY
POWER
SP DET
CLK
DATA
DOLBY
PRO
EN
48
47
46
45
44
43
42
41
P114
P115
P116
P117
P120
P121
P122
P123
P124
P125
P126
P127
Vdd
P70
P71
P72
iC
INT 0
INT 1
INT 2
INT 3
P30
P31
P32
Figure 54 BLOCK DIAGRAM OF IC
– 55 –
CD-C451H
IC701 RH-iX0223AWZZ:System Microcomputer (IX0223AW) (1/2)
1-5
P94/FIP6-P90/FIP2
G06-G02
Output
FL display tube grid drive
6,7
P81/FIP1,P80/FIP0
G01,G00
Output
FL display tube grid drive
8
VDD
VDD
—
Positive power supply
9
P27/SCK0
C
2
B CLK
Output
C
2
B serial clock output
10
P26/SO0/SB1
C
2
B DO
Output
C
2
B serial data output
11
P25/SI0/SB0
C
2
B DI
Input
C
2
B serial data input
12
P24/BUSY
C
2
B CE
Output
C
2
B serial CE output
13
P23/STB
SUB STB
Output
Serial strobe output for CD/TAPE microcomputer
14
P22/SCK1
SUB SCK
Output
Serial clock output for CD/TAPE microcomputer
15
P21/SO1
SUB SO
Output
Serial data output for CD/TAPE microcomputer
16
P20/SI1
SUB SI
Input
Serial strobe input for CD/TAPE microcomputer
17
RESET
RESET
Input
Reset input
18
P74
SUB RES
Output
Reset output for CD/TAPE microcomputer
19
P73
TUN MUTE
Output
Tuner TUN MUT output
20
AVSS
AVSS
—
Analog power supply for A/D converter
21
P17/ANI7
TUN SD
Input
Tuner station detection input
22
P16/ANI6
TUN SM
Input
Tuner signal meter input
23
P15/ANI5
KEY IN5
Input
Key input 37-45
24
P14/ANI4
KEY IN4
Input
Key input 28-36
25
P13/ANI3
KEY IN3
Input
Key input 19-27
26
P12/ANI2
KEY IN2
Input
Key input 10-18
27
P11/ANI1
KEY IN1
Input
Key input 1-9
28
P10/ANI0
ENF IN
Input
Tuner initial setting input
29
AVDD
AVDD
—
Analog positive power supply for A/D converter
30
AVREF
AVREF
—
Reference power supply for A/D converter
31
P04/XT1
VSS
Input
Sub-clock input To be connected to Vss
32*
XT2
N.C
—
Sub-clock output OPEN
33
VSS
VSS
—
GND power
34
X1
X1
Input
Main clock 4.194304 MHz
35
X2
X2
Output
Main clock 4.194304 MHz
36
P37
LED LCK
Output
LED IC serial clock output BU2092 LCK
37
P36/BUZ
LED DATA
Output
LED IC serial data output BU2092 DATA
38
P35/PCL
LED CLK
Output
LED IC serial clock output BU2092CLK
39*
–
–
Input
–
40*
–
–
Input
–
41*
–
–
Output
–
42
P31/TO1
SYS MUTE
Output
System mute output
43
P30/TO0
POWER
Output
POWER output
44
AP-P
Intput
Connect VDD
45*
P02/INTP2
Output
46
P01/INTP1
SYS STOP
Input
Power failure input
47
P00/INTP0/TI0
REM IN
Input
Remote Control Input
48
IC
VSS
—
Connect with GND
49*
P72
Output
No use
50*
P71
Output
No use
51*
P70
Output
No use
52
VDD
VDD
—
Positive power supply
53*
P127/FIP33
—
No use
54-60
P126/FIP32-P120/FIP26 S21-S15
Output
FL display tube segment drive
61-68
P117/FIP25-P110/FIP18 S14-S07
Output
FL display tube segment drive
69,70
P107/FIP17,P106/FIP16 S06,S05
Output
FL display tube segment drive
Terminal Name
Pin No.
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
Port Name
CD-C451H
– 56 –
IC701 RH-iX0223AWZZ:System Microcomputer (IX0223AW) (2/2)
71
VLOAD
VLOAD
—
Negative power supply for FL drive To be connected to -30V
72-76
P105/FIP15-P101/FIP11
S04-S00
Output
FL display tube segment drive
77
P100/FIP10
G10
Output
FL display tube grid drive
78-80
P97/FIP9-P95/FIP7
G09-G07
Output
FL display tube grid drive
Terminal Name
Pin No.
Input/Output
Function
Port Name
IC601 VHiLC75396N-1:Audio Processor (LC75396N)
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
LTIN
LF1C1
LF1C2
LF1C3
LF2C1
LF2C2
LF2C3
LF3C1
LF3C2
LF3C3
LF4C1
LF4C2
LF4C3
LF5
LTOUT
LFIN
RF1C1
RF1C2
RF1C3
RF2C1
RF2C2
RF2C3
RF3C1
RF3C2
RF3C3
RF4C1
RF4C2
RF4C3
RF5
RTOUT
RFIN
RFCOM
49
LSELO
50
LINVIN1
51
L5
52
L4
53
L3
54
L2
55
L1
56
VDD
57
R1
58
R2
59
R3
60
R4
61
R5
62
RINVIN1
63
RSELO
64
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
RTIN
LFCOM
LFOUT
CIN
LRCOM
COUT
LVref
VSS
CE
DI
CL
Vref
RVref
RROUT
RRCOM
RRIN
RFOUT
IC501 VHiLV1035M/-1: Dolby Pro Logic Decorder (LV1035M)
Figure 56-2 BLOCK DIAGRAM OF IC
1
2
3
4
5
6
7
8
9
10
11
12
L
R
S
R
L
L
R
S
C
S
L
R
S
13
14
15
16
48
L_BPF2
L_BPF1
RT_IN
LT_IN
DC_OUT
C_MODE
GND
NS_BPF1
NS_BPF2
OSC
CLK
DATA
ENABLE
DATA
CLK
VSS
R_BPF2
R_BPF1
BPF
RECT
RECT
S_DC_OUT
C_DC_OUT
R_DC_OUT
L_DC_OUT
VREF
VREF
CIRIM
SW6
A
B
B
A
A
B
A
B
A
B
SW5
SW7
B
20k
Ω
20k
Ω
A
SW7
B
B
B
B
A
B
A
S
C
D
A
A
A
B
A
B
SW7
SW7
SW4
SW2
SW2
A
B
A
B
A
B
SW7
SW7
23PIN
15PIN
SW7
SW7
SW7
SW4
SW3
13P IN
VCC
C_OUT
S_OUT
R_OUT
L_OUT
AC_GND
L_IN
R_IN
S_IN
OSC
OSC
VDD
A/D
NS
D/A
DC_OUT
DC_OUT
L_OUT
R_OUT
S_OUT
D_GND
IREF
DET
VCC
DIRAY_OUT
L_BPF3
DC_OUT3
R_RECT
DC_OUT4
L_RECT
VLR_TH
VLR_1
VLR_2
VCS_2
VCS_1
VCS_TH
L+R_RECT
DC_OUT2
L_R_RECT
DC_OUT1
R_BPF3
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
17
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
64
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
BPF
RECT
RECT
LR
LOGDIFF
LOGDIFF
VCS
OSC
VDD
DC-OUT
VOLMUTE
STRIM
B-NR
ADM
C-MODE
S-MODE
VCA
VCA
VCA
VCA
VCA
VCA
VCA
VCA
VOL
DEV
CH-CONT
NOISE-FIL
DATA-DEC
ADM-CONT
S-RAM
IN-FILTER
OUT-FILTER
NOISE-GEN
CH-CONT
VOL
L
R
L
R
PG
PG
Figure 56-1 BLOCK DIAGRAM OF IC
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