Sharp CD-BA2600 (serv.man7) Service Manual ▷ View online
– 45 –
CD-BA250H/CD-BA2600H
FUNCTION TABLE OF IC
IC1 VHiLC78645E-1: CD Servo (LC78645E) (1/2)
1
SLC0
Output
–
Control output.
2
SLCIST
Input
–
Resistor connection terminal for SLCO output current setting.
3
EFMIN
Input
–
RF signal input terminal.
4
RF
Output
–
RF signal monitor terminal.
5
RFVDD
Input
–
RF power terminal.
6
RFVSS
–
–
RF earth terminal. To be connected to 0 V.
7
FIN1 A
Input
–
A+C signal input terminal.
8
FIN2 B
Input
–
B+D signal input terminal.
9
TIN1 E
Input
–
E signal input terminal.
10
TIN2 F
Input
–
F signal input terminal.
11
VREF
Output
RFVDD/2
VREF voltage output terminal.
12
REF1
Input
–
Reference supply setting terminal.
13*
FE
Output
ZHI
FE signal monitor terminal.
14
TEC
Output
–
LPF capacitor connection terminal for TE signal.
15*
TE
Output
ZHI
TE signal monitor terminal.
16*
RFMON
Output
ZHI
RF internal signal monitor terminal.
17
JITTC
–
–
Capacitor connection terminal for jitter detection.
18
ADAVDD
Input
–
Power terminal for servo A/D, D/A.
19
ADAVSS
–
–
Earth terminal for serve A/D, D/A. To be connected to 0 V.
20
TD0
Output
ADAVDD/2
Output terminal for tracking control. D/A output.
21
FD0
Output
ADAVDD/2
Output terminal for focus control. D/A output.
22
SPD0
Output
ADAVDD/2
Output terminal for spindle control. D/A output.
23
SLD0
Output
ADAVDD/2
Output terminal for sled control. D/A output.
24*
GPDAC
Output
ADAVDD/2
Servo D/A general-purpose output terminal.
25
CONT4
Input/Output
Input Mode
General-purpose I/O terminal 4.
26
CONT5
Input/Output
Input Mode
General-purpose I/O terminal 5.
27*
SBCK/CONT6
Input/Output
Input Mode
General-purpose I/O terminal 6 or
Subcode reading clock input terminal.
Subcode reading clock input terminal.
28
SBCK/FG
Input
–
Subcode reading clock input terminal/FG signal input terminal/external
emphasis setting terminal. Terminal functions are set by commands. When
not used, connect to 0 V.
emphasis setting terminal. Terminal functions are set by commands. When
not used, connect to 0 V.
29*
DEFECT
Output
L
Defect terminal.
30*
V/*P
Output
H
Auto switching monitor output terminal for rough servo phase control.
“H”: rough servo, “L”: phase servo.
“H”: rough servo, “L”: phase servo.
31*
FSEQ
Output
L
Sync signal detection output terminal.
The status changes to “H” when the sync signal detected in EFM and the
sync signal of internal generation are identified.
The status changes to “H” when the sync signal detected in EFM and the
sync signal of internal generation are identified.
32*
MONI1
Output
L
Internal signal monitor terminal 1.
33*
MONI2
Output
L
Internal signal monitor terminal 2.
34*
MONI3
Output
L
Internal signal monitor terminal 3.
35*
MONI4
Output
L
Internal signal monitor terminal 4.
36*
MONI5
Output
L
Internal signal monitor terminal 5.
37
VSS
–
–
Digital system earth terminal. To be connected to 0 V.
38
VDD
Input
–
Digital system power terminal.
39*
DOUT
Output
L
Digital OUT output terminal. (EIAJ format)
40
TEST
Input
L
Input terminal for test. To be connected to 0 V.
41
LVDD
Input
–
Power supply for Left channel.
42
LCHO
Output
LVDD/2
Left channel output.
43
LVSS
–
–
GND for Left channel. Must be connected to 0 V.
Pin No.
Function
Terminal Name Input/Output Setting in Reset
Controlled by commands from the
microcomputer. When not used, set
them as input terminals and connect
to 0 V, or set them as output
terminals and leave open.
microcomputer. When not used, set
them as input terminals and connect
to 0 V, or set them as output
terminals and leave open.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Left channel
D/A converter
For slice level
control.
CD-BA250H/CD-BA2600H
– 46 –
44
RVSS
–
–
GND for Right channel. Must be connected to 0 V.
45
RCHO
Output
LVDD /2
Right channel output.
46
RVDD
Input
–
Power supply for Right channel.
47
XVDD
Input
–
Power supply for crystal oscillator.
48
XOUT
Output
–
Connected for the 33.8688 MHz crystal oscillator cement.
49
XIN
Input
–
50
FSX/16MIN
Input/Output
Input
7.35 kHz Synchronization signal monitor port.
or Clock input port for Digital filter & D/A
or Clock input port for Digital filter & D/A
51
XVSS
–
–
Crystal
GND for crystal oscillator. Must be connected to 0 V.
Oscillator
52*
C2F
Output
H
C2 FLAG monitor port.
53*
EFLG
Output
L
C1, C2 error corrected monitor port.
54*
16MOUT
Output
Clock
16.9344 MHz output port.
55
ASLRCK
Input
–
Word clock input port.
(If this port does not use, must be connect to 0 V.)
(If this port does not use, must be connect to 0 V.)
56
ASDACK
Input
–
Bit clock input port.
(If this port does not use, must be connect to 0 V.)
(If this port does not use, must be connect to 0 V.)
57
ASDFIN
Input
–
Left/Right channel data input port.
(If this port does not use, must be connect to 0 V.)
(If this port does not use, must be connect to 0 V.)
58*
LRSY
Output
L
Word clock output port.
59*
DATACK
Output
L
Digital data
Bit clock output port.
60*
DATA
Output
L
Left/Right channel data output port.
61
CE
Input
–
Chip enable signal input port.
62
CL
Input
–
Microcomputer
Data transfer clock input port.
63
DI
Input
–
Interface
Data input port.
64
DO
Output
(H)
Data output port. (N-ch. open drain output.)
65
*WRQ
Output
H
Interruption signal output.
66
*RES
Input
–
Chip reset signal input port.
This port must be set LOW after first applied power on.
This port must be set LOW after first applied power on.
67
DRF
Output
L
Focus detection output port.
68
VDD5
Input
—
Power supply for Microprocessor.
69
VSS
–
–
GND for digital circuit. Must be connected to 0 V.
70
CONT3
Input/Output
Input
General purpose port 1.
71
CONT2
Input/Output
Input
General purpose port 2.
72*
CONT1
Input/Output
Input
General purpose port 3.
73
PDO1
Output
—
Internal VCO control phase comparator output port 1.
74
PDO2
Output
Input
Internal VCO control phase comparator output port 2.
75
VVSS
—
—
GND for internal VCO. Must be connected to 0 V.
76
PCKIST
Input
—
PDO output current adjustment resistor connection port.
77
VVDD
Input
—
Power supply for internal VCO.
78
FR
Input
—
VCO frequency range adjustment port.
79
LDS
Input
—
LASER power detected signal input port.
80
LDD
Output
—
LASER power control signal output port.
IC1 VHiLC78645E-1: CD Servo (LC78645E) (2/2)
Pin No.
Function
Terminal Name Input/Output Setting in Reset
Right channel
D/A converter
D/A converter
Crystal
Oscillator
Anti-shock
Controlled with serial data command from micro-
computer. When not used, General purpose input/
output terminal 7. Set it as the input terminal and open
it by connecting to 0 V, or set it as the output terminal
and open it.
computer. When not used, General purpose input/
output terminal 7. Set it as the input terminal and open
it by connecting to 0 V, or set it as the output terminal
and open it.
PLL
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Be sure to supply the same potential to each power terminal. (VVDD, ADAVDD, VDD, LVDD, RVDD, XVDD)
Terminal witch is controlled by the power terminal (VDD5 V) for a microcomputer interface :
CE (61pin), CL (62pin), DI (63pin), DO (64pin), WRQ (65pin), RES (66pin), DRF (67pin), CONT2 (71pin), CONT3 (70pin).
Terminal witch is controlled by the power terminal (VDD5 V) for a microcomputer interface :
CE (61pin), CL (62pin), DI (63pin), DO (64pin), WRQ (65pin), RES (66pin), DRF (67pin), CONT2 (71pin), CONT3 (70pin).
– 47 –
CD-BA250H/CD-BA2600H
Figure 47 BLOCK DIAGRAM OF IC
IC1 VHiLC78645E-1: CD Servo (LC78645E)
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
31
32
33
34
35 36
37
38
39
40
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
50
49
48
47
46
45
44
43
42
41
SLC0
SLCIST
EFMIN
RF
RFVDD
RFVSS
FIN1
FIN2
TIN1
TIN2
VREF
REFI
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TD0
FD0
SPD0
SLD0
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
RCH0
RVSS
LVSS
LCHO
LVDD
LC78645E
+
–
+
–
+
–
+
–
–
–
+
+
MIX
LPF
LPF
LPF
TBAL
TBAL
RAM
LEVEL SET
AGC
EQ
SW
PH
BH
+
–
+
–
+
–
+
–
MONI
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,
EFN DECODE
VDD
SUBCODE DECODE CRC
MONITOR SIGNAL SELECTOR
RAM
ERROR
CORRECTION
AUDIO CD
AUDIO OUT
SERIAL
OUT
EXTERNAL
AUDIO IN
INTERPOLATION
MUTE
ATTENUATION
DEEMPHSIS
LPF
FIN1
FIN2
TIN1
TIN2
REF1
DETECT
ADIN
ADAVDD
ADAVSS
JITTC
SLC0
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
ASDQCK
ASLRCK
DATA
DATACK
LRSY
DOUT
EFLG
C2F
FSK/16MIN
MONI1~5
VSS
VDD
V/*P
FSEQ
DRF
GPDAC
SPD0
SLD0
TD0
FD0
LDS
LDD
VREF
RFMON
RFVSS
RFVDD
RF
TEC
TE
FE
CD-BA250H/CD-BA2600H
– 48 –
1
VDD
VDD
Input
(+) POWER SUPPLY.
2
P37
-20 dB ATT
Output
-20 dB ATTENUATOR.
3
P36
NO USE
Output
GND
4
P35
T_BIAS
Output
TAPE RECORD BIAS.
5
P34
T_T1/T2
Output
TAPE T1/T2 CHANGE.
6
P33
REC/PLAY
Output
TAPE REC/PLAY CHANGE.
7
P32
RES OUT
Output
CD DSP RESET&MPEG MICROCOMPUTER RESET.
8
P31
DRF
Input
CD RF LEVEL DETECTION.
9
P30
WRQ
Input
CD DSP WRITE REQUEST.
10
RESET
RESET
Input
RESET
11
X2
X2
Output
MAIN CLOCK.
12
X1
X1
Input
MAIN CLOCK.
13
VPP/IC
VPP/IC
—
GND
14*
XT2
XT2
—
OPEN
15*
P04
SPAN
Input
TUNER SPAN CHANGE.
16
VDD
VDD
Input
(+) POWER SUPPLY.
17
P27
CD CLK
Output
CD DSP CLOCK.
18
P26
CD DI
Output
CD DSP COMMAND.
19
P25
CD DO
Input
CD DSP CODE Q OUT.
20
P24
CD CE
Output
CD DSP CE OUTPUT.
21
P23
CE
Output
CE OUTPUT.
22
P22
CLK
Output
CLOCK OUTPUT.
23
P21
DI
Output
DATA OUTPUT.
24
P20
DO
Input
DATA INPUT.
25
AVSS
AVSS
—
ANALOG GROUND.
26
ANI7
O/C SW
Input
CD OPEN/CLOSE SWITCH.
DISC NO SW
Input
CD DISC NUMBER SWITCH.
27
ANI6
TUNER SM
Input
TUNER SIGNAL METER INPUT.
28
ANI5
SPEANA2
Input
SPEANA DATA INPUT 16 kHz.
29
ANI4
SPEANA1
Input
SPEANA DATA INPUT 1 kHz.
30
ANI3
SPEANA0
Input
SPEANA DATA INPUT 63 kHz.
31-33
ANI2-ANI0
KEY 2-KEY 0
Input
KEY INPUT.
34
AVDD
AVDD
Input
ANALOG VDD.
35
AVREF
AVREF
Input
ANALOG REF VOLTAGE.
36
INTP3
P_IN
Input
POWER FAILURE DETECT.
37
P02
JOG 1
—
GND
38
P01
JOG 0
—
GND
39
INTP0
REMOCON
Input
REMOCON INPUT.
40
VSS
VSS
—
GROUND VOLTAGE.
41
P74
SMUTE
Output
SYSTEM MUTE CONTROL.
42
P73
T_SOL B
Output
TAPE 2 SOLENOID CONTROL.
43
P72
T_SOL A
Output
TAPE 1 SOLENOID CONTROL.
44
P71
T_MOTOR
Output
TAPE MOTOR CONTROL.
45
P70
TIMER LED
Output
TIMER LED CONTROL.
46
VDD
VDD
Input
(+) POWER SUPPLY.
47
P127
AC RLY_CONT
Output
AC RELAY CONTROL.
48
P126
SP_RLY
Output
SPEAKER OUTPUT RELAY CONTROL.
49
P125
SPK_DET
Input
SPEAKER OUTPUT DETECTION.
50
P124
T 1 RUN
Input
TAPE 1 RUN PULSE INPUT.
51
P123
T 2 RUN
Input
TAPE 2 RUN PULSE INPUT.
52
P122
CD CLAMP SW
Input
CD CHANGER CLAMP SWITCH.
IC701 RH-iX0401AWZZ: System Microcomputer (IX0401AW) (1/2)
Port Name
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
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