Sharp CD-C440H (serv.man2) Service Manual ▷ View online
– 49 –
CD-C440H/CP-C440H
IC1 VHiLA9240M/-1:Servo Amp. (LA9240M) (2/2)
Pin No.
Port Name
Function
51
CL
Micro computer command clock input pin.
52
DAT
Micro computer command data input pin.
53
CE
Micro computer command chip enable input pin.
54
DRF
(DETECT RF) RF level detection output.
55
FSS
(Focus Serch Select) Pin to switch focus search mode. (
±
search/+ search for reference voltage)
56
VCC2
VCC pin for servo system and digital system.
57
REFI
Pin to connect pass control for reference voltage.
58
VR
Reference voltage output pin.
59
LF2
Pin to set defect detection time constant of disk.
60
PH1
Pin to connect capacitor for peak hold of RF signal.
61
BH1
Pin to connect capacitor for bottom hold of RF signal.
62
LDD
APC circuit output pin.
63
LDS
APC circuit output pin.
64
VCC1
RF system VCC pin.
Figure 49 BLOCK DIAGRAM OF IC
1
FIN2
FIN1
E
F
TB
TE-
TE
TESI
SCI
TH
TA
TD-
TD
JP
TO
FD
FD-
FA
FA-
FE
FE- AGND SP
SPI
SPG
SP-
SPD
SLEQ
SLD
SL- SL+
JP-
JP+
TGL
TOFF
TES
HFL
SLOF
CV-
CV+
RFSM
RFS-
SLC
SLI
DGND
FSC
TBC
NC
DEF
CLK
CL
DAT
CE
DRF
FSS
VCC2
REFI
VR
LP2
PH1
BH1
LDD
LDS
SLC
RF AMP
TE
F.SERVO & F.LOGIC
SPINDLE SERVO
SLED SERVO
VCC1
2
3
4
6
7
5
8
9
10
11
12
13
14
15
16
17
18
19
20
21
23
22
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
46
47
48
49
50
51
52
53
54
55
56
57
58
59
61
60
62
63
64
45
24
APC
RF DET
REF
VCA
VCA
INTER FACE
BAL
µ-COM
I/V
T.SERVO & T.LOGIC
CD-C440H/CP-C440H
– 50 –
IC601 RH-iX0171AWZZ:System Microcomputer (IX0171AW) (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
µ
COM (RH-iX0170AWZZ) control signal
15
SO
Output
Main
µ
COM (RH-iX0170AWZZ) control signal
16
SI
Input
Main
µ
COM (RH-iX0170AWZZ) control signal
17
RESET
Input
Main
µ
COM (RH-iX0170AWZZ) control signal
18
STROBE
Input
Main
µ
COM (RH-iX0170AWZZ) 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
– 51 –
CD-C440H/CP-C440H
IC601 RH-iX0171AWZZ:System Microcomputer (IX0171AW) (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
SRS INH
Output
SRS (surround) position selection output
58
SRS B
Output
SRS (surround) position selection output
59
SRS A
Output
SRS (surround) position selection output
60
SRS 3D
Output
SRS (surround) position selection output
61
SRS PASS
Output
SRS (surround) position selection output
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*
————
—
Not used
74*
————
—
Not used
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
CD-C440H/CP-C440H
– 52 –
IC701 RH-iX0170AWZZ:System Microcomputer (IX0170AW) (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/S00/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*
P34/TI2
RDS ID
Input
RDS RDS station detection input
40*
P33/TI1
RDS SYNC
Input
RDS Data sync detection input
41*
P32/TO2
RDS SYR
Output
RDS RAM reset output LC72720 SYR
42
P31/TO1
SYS MUTE
Output
System mute output
43
P30/TO0
POWER
Output
POWER output
44*
P03/INTP3/CI0
Output
Not used
45*
P02/INTP2
Output
Not used
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
Not used
50*
P71
Output
Not used
51*
P70
Output
Not used
52
VDD
VDD
—
Positive power supply
53*
P127/FIP33
—
Not used
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
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