CD-MD3000 (serv.man25). IC function tables - Sharp Audio Service Manual (repair manual)

cd-md3000 (serv.man25) service manual
Model
CD-MD3000 (serv.man25)
Pages
15
Size
139.19 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / IC function tables
File
cd-md3000-sm25.pdf
Date

Read Sharp CD-MD3000 (serv.man25) Service Manual online

CD-MD3000H/CD-MD3000W
– 94 –
FUNCTION TABLE OF IC
IC2 VHiTC9490F/-1: Servo/Signal Control (TC9490F) (1/2)
1
BCK
Output
Bit clock output terminal. 32fs, 48fs or 64fs can be selected by command.
2
LRCK
Output
L/R channel clock output terminal. L channel: "L", R channel: "H".
the output polarity can be inverted by command.
3
AOUT
Output
Audio data output terminal. MSB/LSB fast can be selected by command.
4
DOUT
Output
Digital out output terminal. Up to double speed can be output.
5*
IPF
Output
Correction flag output terminal. When the correction impossible symbol appears if the AOUT
output corresponds to the C2 correction output: "H".
6
VDD3
Digital 3.3V power supply terminal.
7
VSS3
Digital GND terminal.
8*
SBOK
Output
Subcode Q data CRCC decision result output terminal. When the decision result is OK: "H".
9*
CLCK
Input/Output
Clock input/output terminal for subcodes P-W data reading.
The input/output polarity can be selected by command.
10*
DATA
Output
Subcodes P-W data output terminal.
11*
SFSY
Output
Playback system frame sync signal output terminal.
12*
SBSY
Output
Subcode block sync output terminal.
In the S1 position when the subcode sync is detected: "H".
13
/HSO
Output
Playback speed mode flag output terminal.
14*
/UHSO
Output
15
PVDD3
3.3V power supply terminal for PLL system.
16
PDO
Output
EFM signal/PLCK signal phase error signal output terminal.
17
TMAX
Output
TMAX detection result output terminal.
18
LPFN
Input
Amp's inversion input terminal for PLL system low-pass filter.
19
LPFO
Output
Amp's output terminal for PLL system low-pass filter.
20
PVREF
VREF terminal only for PLL system.
21
VCOF
Output
Filter terminal for VCO.
22
AVSS3
Analog GND terminal.
23
SLCO
Output
DAC output terminal for data slice level generation.
24
RFI
Input
RF signal input terminal. Zin can be selected by command.
25
AVDD3
Analog 3.3V power supply terminal.
26
RFCT
Input
RFRP signal center level input terminal.
27
RFZI
Input
Input terminal for RFRP signal zero crossing.
28
RFRP
Input
RF ripple signal terminal.
29
FEI
Input
Focus error signal input terminal.
30
SBAD
Input
Sub-beam addition signal input terminal.
31
TEI
Input
Tracking error input terminal. Fetch when the tracking servo is on.
32
TEZI
Input
Input terminal for tracking error signal zero crossing.
33
FOO
Output
Focus equalizer output terminal.
34
TRO
Output
Tracking equalizer output terminal.
35
VREF
Analog reference power supply terminal.
36
RFGC
Output
RF amplitude adjustment control signal output terminal.
37
TEBC
Output
Tracking balance control signal output terminal.
38
SEL
Output
APC circuit ON/OFF signal output terminal.
When the laser is on, UHS="L": "Hi-z", UHS="H": "H" output.
Pin No.
Terminal Name
Function
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
H
H
Normal speed playback
H
L
Double speed playback
L
L
4-time speed playback
/UHSO
/HSO
Playback speed
Longer than the specified period
"PVDD3"
Within the specified period
"Hi-z"
Shorter than the specified period
"AVSS3"
TMAX detection result
TMAX output
– 95 –
CD-MD3000H/CD-MD3000W
IC2 VHiTC9490F/-1: Servo/Signal Control (TC9490F) (2/2)
39
AVDD3
Analog 3.3V power supply terminal.
40
FMO
Output
Feed equalizer output terminal.
41
DMO
Output
Disc equalizer output terminal.
42
VSS3
Digital GND terminal.
43
VDD3
Digital 3.3V power supply terminal.
44
TESIN
Input
Test input terminal. Usually "L" fixed.
45
XVSS3
GND terminal for system clock oscillation circuit.
46
XI
Input
System clock oscillation circuit input terminal.
47
XO
Output
System clock oscillation circuit output terminal.
48
XVDD3
3.3V power supply terminal for system clock oscillation circuit.
49
DVSS3
GND terminal for D/A converter.
50
RO
Output
R channel data normal rotation output terminal.
51
DVDD3
3.3V power supply terminal for D/A converter.
52
DVR
Reference voltage terminal.
53
LO
Output
L channel data normal rotation output terminal.
54
DVSS3
D/A converter section GND terminal.
55*
ZDET
Output
1-bit D/A converter 0 detection flag output terminal.
56
VSS5
GND terminal for microcomputer interface.
57-60
BUS0-BUS3
Input/Output
Data input/output terminal for microcomputer interface.
61
BUCK
Input
Clock input terminal for microcomputer interface.
62
/CCE
Input
Chip enable signal input terminal for microcomputer interface.
In case of "L", BUS3-0 are active.
63
/RST
Input
Reset signal input terminal. Reset: "L".
64
VDD5
5V power supply terminal for microcomputer interface.
Pin No.
Terminal Name
Function
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Note:  AI/F:     Analog input/output terminal
          3-5I/F:  Terminal with a built-in 3-5 interface (5V system input/output terminal)
          3I/F:     3V system input/output terminal
Figure 95 BLOCK DIAGRAM OF IC
XVDD3
XO
XI
XVSS3
TESIN
VDD3
VSS3
DMO
FMO
AVDD3
SEL
TEBC
RFGC
VREF
TRO
FOO
TEZI
TEI
SBAD
FEI
RFRP
RFZI
RFCT
AVDD3
RFI
SLCO
AVSS3
VCOF
PVREF
LPFO
LPFN
TMAX
PDD
PVDD3
/HSO
/UHSO
SBSY
SFSY
DATA
CLCK
SBOK
VSS3
VDD3
IPF
DOUT
AOUT
LRCK
BCK
DVSS3
RO
DVDD3
DVR
LO
DVSS3
ZDET
VSS5
BUS1
BUS2
BUS3
BUCK
/CCE
/RST
VDD5
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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
LPF
1-bit
DAC
PWM
D/A
A/D
VCO
ROM
RAM
16K RAM
PLL
TMAX
+
+
+
+
BUS0
Clock
generator
Servo control
Digital equalizer
adjustment circuit
Data
slicer
CLV
servo
Synchronizing
signal guarantee
EFM demodulation
Sub-code
demodulation
circuit
Address
circuit
Correction
circuit
Digital
out
Audio output
circuit
Microcomputer
interface
CD-MD3000H/CD-MD3000W
– 96 –
IC6  VHiTA2147F/-1:Servo Pre Amp. (TA2147F)
1
VCC
3.3V power supply terminal
2
FNI
Input
Main beam amp input terminal
3
FPI
Input
Main beam amp input terminal
4
TPI
Input
Sub-beam amp input terminal
5
TNI
Input
Sub-beam amp input terminal
6
MDI
Input
Monitor photodiode amplifier input terminal
7
LDO
Output
Laser diode amp output terminal
8
SEL
Input
APC circuit ON/OFF signal, LDO terminal control input terminal and bottom/peak
detection frequency switching terminal
9
TEBC
Input
Tracking error balance adjustment signal input terminal
• TEBC input voltage
10
TEN
Input
Tracking error signal generation amp antiphase input terminal
11
TEO
Output
Tracking error signal generation amp output terminal
12
RFDC
Output
RF signal peak detection output terminal
13
GVSW
Input
AGC, FE, TE amp gain switching terminal
14
VRO
Output
Reference voltage (VRO) output terminal • VCC=3.3V: VRO=1/2 VCC
15
FEO
Output
Focus error signal generation amp output terminal
16
FEN
Input
Focus error signal generation amp antiphase input terminal
17
RFRP
Output
Signal generation amp output terminal for track count
18
RFRPIN
Input
Signal generation amp input terminal for track count
19
RFGO
Output
RF signal amplitude adjustment amp output terminal
20
RFGC
Input
RF amplitude adjustment control signal input terminal • RFGC input voltage
21
AGCIN
Input
RF signal amplitude adjustment amp input terminal
22
RFO
Output
RF signal generation amp output terminal
23
RFN
Input
RF signal generation amp input terminal
24
GND
GND terminal
Terminal Name
Pin No.
Input/Output
Function
GND
OFF
Connection to VCC via 1k
Hi-z
ON
Control signal output
VCC
ON
Control signal output
SEL
APC circuit
LDO
GND
CD-RW
Hi-z
CD-DA
VCC
CD-CA
GVSW
Mode
Figure 96 BLOCK DIAGRAM OF IC
PIN
SEL
(APC_SW)
TEB
(TE_BAL)
RFGC
(AGC_Gain)
GVSW
(CD/RW)
V
CTRL
V
CC
HiZ
GND
APC ON
APC ON
APC OFF
(LDO=H)
-50%
0%
+50%
+12dB
+6dB
0dB
DA
(0dB)
DA
(0dB)
RW
(+12dB)
GVSW
VRO
FEO
FEN
RFRP
20K
20K
20K
15K
15K
10p
50u
20
µ
12K
20K
20K
20K
2K
40K
50K
50K
40K
10p
1.3V
1K
14K
2K
RFDC
TEO
TEN
TEB
SEL
LDO
MDI
TNI
TPI
FPI
FNI
VCC
80K
80K
20K
20K
240K
15p
240K
15p
180K
40p
40p
60k
60k
180K
40K
20K
30K
3K
20K
12K
RFGC
AGCIN
RFO
RFN
GND
RFRPIN
RFGO
3K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
BOTTOM
PEAK
PEAK
K
x0.5
x2
x2
x0.5
1
– 97 –
CD-MD3000H/CD-MD3000W
1
P60/A16
Output
Cassette playback mute
2
P62/A18
Output
Recording output (Cassette)
3
P61/A17
Output
Recording bias output (Cassette)
4
P63/A19
Output
Span output for destination 1
5
P64/RD
Output
Cassette operation motor output
6
P65/WR
Output
Cassette solenoid output
7
P66/WAIT
Output
Span output for destination 2
8
P67/ASTB
Input
Pulse for tape running check
9
VDD
Input
To be connected to VDD
10
P100/T15/TO5
Input
A side foolproof switch
11
P101/T16/TO6
Input
B side foolproof switch
12
P102/T17/TO7
Input
Cassette CAM switch
13
P103/T18/TO8
Input
Cassette detection switch
14
P30/TO0
Output
Tuner chip enable
15
P31/TO1
Input
Destination input
16
P32/TO2
Output
CD mute
17
P33/T11
Input
Tuner span select
18
P34/T12
Output
Expanded IC control signal
19
P35/T100
Output
Expanded IC control signal
20
P36/T101
Output
Expanded IC control signal
21
P37
Output
Expanded IC control signal
22
TEST/Vpp
Input
Not used
23*
P90
Output
Not used
24*
P91
Output
Not used
25*
P92
Output
Not used
26*
P93
Output
Not used
27*
P94
Output
Not used
28
P06/INTP6
Output
POWER relay control
29*
P120/RTP0
Output
Not used
30*
P121/RTP1
Output
Not used
31*
P122/RTP2
Output
Not used
32
P123/RTP3
Output
LED output for timer
33
P124/RTP4
Output
LCD backlight control
34
P125/RTP5
Output
System mute output
35
P126/RTP6
Input
Panel close switch
36
P127/RTP7
Input
Panel open switch
37
VDD
Input
Connected to VDD
38
X2
Output
8 MHz sera - lock
39
X1
Input
8 MHz sera - lock
40
VSS
Input
Ground potertial to be connected to VSS
41
XT2
Output
32.768 kHz crystal
42
XT1
Input
32.768 kHz crystal
43
RESET
Input
Reset input
44
P00/INTP0
Input
Remote control signal input
45
P01/INTP1
Input
JOG A input
46
P02/INTP2/NMI
Input
JOG B input
47
P03/INTP3
Input
Power failure detection
48
P04/INTP4
Input
Speaker abnormal detection
49
P05/INTP5
Output
Speaker relay
50
P95
Input
POWER key input
51
AVDD
Analog power supply
Pin No.
Function
Port Name
Input/Output
IC901  RH-iX0354AWZZ: System Microcomputer (IX0354AW) (1/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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