Sharp CD-E250 (serv.man18) Service Manual ▷ View online
– 51 –
CD-E250E
CD-E550E
Figure 51 BLOCK DIAGRAM OF IC
IC401 VHiLC78646E-1: Servo/Signal Control (LC78646E)
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46
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43
42
41
SLCO
SLCIST
EFMIN
RF
RFVDD
RFVSS
FIN1
FIN2
TIN1
TIN2
VREF
REF1
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TDO
FDO
SPDO
SLDO
GPDAC
CONT4
CONT5
SBCK/CONT6
SBCK/FG
DEFECT
V/*P
FSEQ
MONI1
MONI2
MONI3
MONI4
MONI5
(3.3V)VSS
VDD
DOUT
TEST
LDD
LDS
FR
VVDD
PCKIST
VVSS
PD02
PD01
CONT1
CONT2
CONT3
VSS
VDD5
DRF
*RES
*WRQ
DO
DI
CL
CE
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
XVSS
FSX/16MIN
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
LC78646E
+
–
+
–
–
–
+
+
MIX
LPF
LPF
LPF
TBAL
TBAL
RAM
LEVEL SET
EQ
SW
PH
BH
+
–
+
–
+
–
+
–
MNI
CONT
A/D
SERVO PROCESSOR
TRACK JUMP
AUTO ADJUST
JITTER
DETECT
1bit DAC
8FS
DIGITAL FILTER
GENERAL-PURPOSE
PORTS
COMMAND
INTERFACE
CLOCK
GENERATOR
CLV,CAV
CONTROL
PLL
VCEC
SLICE LEVEL
CONTROL
APC
S/H
D/A
SW
DRF
RUPTURE DEFECT
FRAME SYNC
DETECT,PROTECT INSERT,
EFM DECODE
VDD5V
SUBCODE DECODE CRC
MONITOR SIGNAL SELECTOR
RAM
ERROR
CORRECTION
AUDIO CD
C1-2,C2-2
AUDIO OUT
SERIAL
OUT
EXTERNAL
AUDIO IN
INTERPOLATION
MUTE
ATTENUATION
DEEMPHSIS
LPF
FIN1
FIN2
TIN1
TIN2
REF1
DEFECT
ADIN
ADAVDD
ADAVSS
JITTC
SLCO
EFMIN
SLCIST
PCK
PDO1
PDO2
PDO2
FR
PCKIST
VVDD
VVSS
SBCK/FG
XIN
XOUT
16MOUT
XVDD
XVSS
*RES
*WRQ
CL
CE
DI
DO
VDD5V
CONT1, 2, 3
TEST
CONT4, 5,
SBCK/CONT6
LVDD
LVSS
LCHO
RCHO
RVDD
RVSS
ASDFIN
ASDACK
ASLRCK
DATA
DATACK
LRSY
DOUT
EFLG
C2F
FSX/16MIN
MONI1~5
VSS
VDD
V/*P
FSEQ
DRF
GPDAC
SPD0
SLD0
TD0
FD0
LDS
LDD
VREF
RFMON
RFVSS
RFVDD
RF
TEC
TE
FE
+
–
+
–
AGC
CD-E250E
CD-E550E
– 52 –
IC601 VHiLC75341M-1: Audio Processor (LC75341M)
Figure 52 BLOCK DIAGRAM OF IC
19
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23
24
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
17
LVref
RVref
CONTROL
CIRCUIT
CONTROL
CIRCUIT
CONTROL
CIRCUIT
LOUT
LBASS
LIN
LSEL0
L4
L3
L2
L1
R1
R2
R3
R4
RSEL0
RIN
RTRE
LTRE
RBASS
ROUT
VREF
VDD
CLK
DI
CE
VSS
CCB
INTERFACE
CD
Tuner
Tape
Video
IC601 VHiLC75341M-1: Audio Processor (LC75341M)
Terminal Name
Pin No.
Function
1
DI
Serial data and clock input pin
for control.
for control.
2
CE
Chip enable pin.
Data written into an internal latch
in a timing of "H" to "L".
Each analog switch is activated.
Data transfer enabled at "H" level.
Data written into an internal latch
in a timing of "H" to "L".
Each analog switch is activated.
Data transfer enabled at "H" level.
3
VSS
Ground pin.
4
LOUT
Bass band filter comprising
capacitor and resistor connection
pin and bass/treble output pin.
capacitor and resistor connection
pin and bass/treble output pin.
5
LBASS
Bass band filter comprisingcapacitor
and resistor connection pin.
and resistor connection pin.
6
LTRE
Treble band filter comprising
capacitor and resistor connection
pin.
capacitor and resistor connection
pin.
7
LIN
Volume + equaliser output pin
8
LSEL0
Input selector output pin.
9-12
L4-1
Input signal pin.
Terminal Name
Pin No.
Function
13-16
R1-4
Input signal pin.
17
RSEL0
Input selector output pin.
18
RIN
Volume + equaliser output pin
19
RTRE
Treble band filter comprising
capacitor and resistor connection
pin.
capacitor and resistor connection
pin.
20
RBASS
Bass band filter comprisingcapacitor
and resistor connection pin.
and resistor connection pin.
21
ROUT
Bass band filter comprising
capacitor and resistor connection
pin and bass/treble output pin.
capacitor and resistor connection
pin and bass/treble output pin.
22
VREF
0.5x VDD voltage generation block
for analog ground. Capacitor of
several 10
for analog ground. Capacitor of
several 10
µ
F to be connected
between VREF and AWSS (VSS) as
a countermeasure against power
ripple.
a countermeasure against power
ripple.
23
VDD
Supply pin
24
CLK
Serial data and clock input pin
for control.
for control.
– 53 –
CD-E250E
CD-E550E
IC701 RH-iX0058SJZZ: System Microcomputer (IX0058SJ) (CD-E250E) (1/2)
IC701 RH-iX0065SJZZ: System Microcomputer (IX0065SJ) (CD-E550E) (1/2)
IC701 RH-iX0065SJZZ: System Microcomputer (IX0065SJ) (CD-E550E) (1/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
1
P16
TIMER_LED
Output
Timer LED control.
2*
P17
RDS_DATA
Input/Output
Open
3*
P30
RDS_CLE
Input/Output
Open
4
P31
CD_CE
Output
CD DSP CE output.
5
P32
CD_RES
Output
CD DSP reset.
6
P33
CD_DRF
Input
CD DRF level detection.
7
P34
CD_WRQ
Input
CD write read request.
8*
P35
PROG0
Input/Output
Open
9*
P36
PROG1
Input/Output
Open
10*
P37
PROG2
Input/Output
Open
11
RES
RESET IN PUT
Input
Reset signal input.
12
XT1
XT1
Input
Open
13
XT2
XT2
Input/Output
Open
14
VSS1
GND
–
Ground voltage.
15
CF1
CF1
Input
Main clock.
16
CF2
CF2
Output
Main clock.
17
VDD1
VDD1
–
(+) Power supply.
18
P80
KEY1_IN
Input
Key input.
19
P81
KEY2_IN
Input
Key input.
20*
P82
NO USE
Input/Output
Open
21
P83
FAN_PRT
Input
Fan protect circuit input.
22
P84
MODE_CKECK
Input
Ground level input.
23
P85
T2_TAPE2_SW
Input
Tape SW detection.
24*
P86
T1_TAPE1_SW
Input/Output
Open
25*
P87
RDS_VSM
Input/Output
Open
26
P70
SYS_STOP
Input
System stop input.
27
P71
X-BASS/DEMO
Input
Key input.
28
P72
POWER_KEY
Input
Key input.
29
P73
IRQ
Input
Remocon input.
30-38
S0/T0-S8/T8
G9-G1
Output
FL(VFD) segment driver.
39*-45*
S9/T9-S15/T15
NO USE
Input/Output
Open
46
VDD3
VDD3
–
(+) Power supply.
47-50
S16-S19
P1-P4
Output
FL(VFD) segment driver.
51
FIX0
GND
–
Connect to GND.
52-67
S20-S35
P5-P20
Output
FL(VFD) segment driver.
68
S36
DISC_NO_SW
Input
Tray disc no. SW detection.
69
S37
DISC1_SW
Input
Tray disc 1 SW detection.
70
S38
DISC_UP_SW
Input
Tray disc up SW detection.
71
S39
CLOSE_SW
Input
Tray close SW detection.
72
VDD4
VDD4
–
(+) Power supply.
73
S40
ROTATE
Output
Tray motor control.
74
S41
DISC_DOWN_SW
Input
Tray disc down SW detection.
75
S42
OPEN_SW
Input
Tray open SW detection.
76
S43
TAPE_BIAS
Output
Tape record bias.
77
S44
REC_PLAY
Output
Tape REC/PLAY change.
78
S45
REC
Input
Tape 2 rec SW detection.
79
S46
MOTOR
Output
Tape motor control.
80
S47
T1_SOL
Output
Tape 1 solenoid control.
81
S48
T2_SOL
Output
Tape 2 solenoid control.
82
S49
T1_RUN_PLUS
Input
Tape 1 RUN PULSE input.
83
S50
T2_RUN_PLUS
Input
Tape 2 RUN PULSE input.
Port Name
Terminal Name
Pin No.
Input/Output
Function
CD-E250E
CD-E550E
– 54 –
IC701 RH-iX0058SJZZ: System Microcomputer (IX0058SJ) (CD-E250E) (2/2)
IC701 RH-iX0065SJZZ: System Microcomputer (IX0065SJ) (CD-E550E) (2/2)
IC701 RH-iX0065SJZZ: System Microcomputer (IX0065SJ) (CD-E550E) (2/2)
S1 9 / PC3
S1 8 / PC2
S1 7 / PC1
S1 6 / PC0
V D D 3
S1 5 / T15
S1 4 / T14
S1 3 / T13
S1 2 / T12
S1 1 / T11
S1 0 / T10
S 9/ T 9
S 8/ T 8
S 7/ T 7
S 6/ T 6
S 5/ T 5
S 4/ T 4
S 3/ T 3
S 2/ T 2
S 1/ T 1
S1 8 / PC2
S1 7 / PC1
S1 6 / PC0
V D D 3
S1 5 / T15
S1 4 / T14
S1 3 / T13
S1 2 / T12
S1 1 / T11
S1 0 / T10
S 9/ T 9
S 8/ T 8
S 7/ T 7
S 6/ T 6
S 5/ T 5
S 4/ T 4
S 3/ T 3
S 2/ T 2
S 1/ T 1
S4 8 / PG0
S4 9 / PG1
S5 0 / PG2
S5 1 / PG3
S4 9 / PG1
S5 0 / PG2
S5 1 / PG3
P 00
P 01
P 02
P 03
P 01
P 02
P 03
V S S 2
V D D 2
P 04
P 05
P 06
P 07
P 05
P 06
P 07
P1 0 / SO0
P1 1 / S I0 / S B0
P1 2 / SCK 0
P1 3 / SO1
P1 4 / S I1 / S B1
P1 5 / SCK 1
P
16/T
1
P
W
M
L
P
17/T
1
P
W
M
H
/B
U
Z
P
30/I
NT
4
/T
1
IN
P
31/I
NT
4
/T
1
IN
P
32/I
NT
4
/T
1
IN
P
33/I
NT
4
/T
1
IN
P
34/I
NT
5
/T
1
IN
P
35/I
NT
5
/T
1
IN
P
36/I
NT
5
/T
1
IN
P
37/I
NT
5
/T
1
IN
RES
XT
1/A
N1
0
XT
2/A
N1
1
V
SS1
CF
1
CF
2
VD
D1
P
80/A
N0
P
81/A
N1
P
82/A
N2
P
83/A
N3
P
84/A
N4
P
85/A
N5
P
86/A
N6
P
87/A
N7
/M
IC
IN
P
70/I
NT
0
/T
0
L
C
P
/A
N
8
P
71/I
NT
1
/T
0
H
C
P
/A
N
9
P
72/I
NT
2
/T
0
IN
/NK
IN/A
N
1
2
P
73/I
NT
3
/T
0
IN
/A
N13
S0
/T
0
S
47/PF
7
S
46/PF
6
S
45/PF
5
S
44/PF
4
S
43/PF
3
S
42/PF
2
S
41/PF
1
S
40/PF
0
VD
D4
S
39/PE
7
S
38/PE
6
S
37/PE
5
S
36/PE
4
S
35/PE
3
S
34/PE
2
S
33/PE
1
S
32/PE
0
S
31/P
D7
S
30/P
D6
S
29/P
D5
S
28/P
D4
S
27/P
D3
S
26/P
D2
S
25/P
D1
S
24/P
D0
S
23/P
C
7
S
22/P
C
6
S
21/P
C
5
S
20/P
C
4
FI
X
0
8 1
8 2
8 3
8 4
8 5
8 6
8 7
8 8
8 9
9 0
9 1
9 2
9 3
9 4
9 5
9 6
9 7
9 8
9 9
1 00
8 2
8 3
8 4
8 5
8 6
8 7
8 8
8 9
9 0
9 1
9 2
9 3
9 4
9 5
9 6
9 7
9 8
9 9
1 00
5 0
4 9
4 8
4 7
4 6
4 5
4 4
4 3
4 2
4 1
4 0
3 9
3 8
3 7
3 6
3 5
3 4
3 3
3 2
3 1
4 9
4 8
4 7
4 6
4 5
4 4
4 3
4 2
4 1
4 0
3 9
3 8
3 7
3 6
3 5
3 4
3 3
3 2
3 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
IC701
IX0058SJ (CD-E250E)
IX0065SJ (CD-E550E)
IX0065SJ (CD-E550E)
SYSTEM MICROCOMPUTER
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Port Name
Terminal Name
Pin No.
Input/Output
Function
84
S51
CH_SW
Output
Tape T1/T2 switch output.
85
P00
CD+B
Output
CD servo power supply circuit control output.
86*
P01
P_CON
Input/Output
Open
87*
P02
P_STB
Input/Output
Open
88
P03
P_MUTE
Output
Power mute output.
89
VSS2
GND
–
GND
90
VDD2
VDD2
–
(+) Power supply.
91
P04
SIGAL_LVL
Input
Power Amp. output level detection signal input.
92
P05
FAN_START
Output
Fan motor control.
93
P06
SP_DETECT
Output
Speaker output detect.
94
P07
SP_RELAY
Output
Speaker relay control.
95
P10
DI
Output
Data output.
96
P11
DO
Input
Data input.
97
P12
CL
Output
Clock output.
98
P13
CE
Output
CE output.
99
P14
FM_ST
Input
Radio stereo broadcast reception detection input.
100
P15
SD
Input
Broadcast reception status detection input.
Display
