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Mitsubishi Electric CQ-JB3160A Service Manual page 8

Am/fm mpx electronic tuning radio with cd player
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MITSUBISHI / CQ-JB3160A / CQ-JB0160A
7.3.
CD Servo Block
IC201 : MN662748RPMF
Pin
Port
No.
1
BCLK
Not used
2
LRCK
Not used
3
SRDATA
Not used
4
DVDD
+5V digital power supply
5
DVSS1
Digital ground
6
TX
Not used
7
MCLK
MPU command clock
8
MDATA
MPU command data
9
MLD
MPU command load
10
SENSE
Sense signal
11
/FLOCK
Focus servo lock
12
/TLOCK
Tracking servo lock
13
BLKCK
Not used
14
SQCK
Q code external clock
15
SUBQ
Q code output
16
DMUTE
DSP mute
17
STAT
DSP Status output
18
/RST
Reset input
19,20
Not used
21
TRV
Forced traverse output
22
TVD
Traverse drive output
23
PC
Spindle motor control
24
ECM
Spindle motor drive
25
ECS
Spindle motor drive
26
KICK
Kick pulse output
27
TRD
Tracking motor drive
28
FOD
Focus motor drive
29
VREF
D/A reference voltage
30
FBAL
Focus balance adjust
31
TBAL
Tracking balance adjust
32
FE
Focus error signal
33
TE
Tracking error signal
34
RFENV
RF envelope signal
35
VDET
Vibration detection
36
OFTR
Off track signal
37
TRCRS
Track closs signal
38
/RFDET
RF detection signal
39
BDO
Drop out signal
40
LDON
Laser on/off control
41
PLLF2
Not used
42
TOFS
TE offset
43
WVEL
Not used
44
ARE
RF signal
45
IREF
Reference current input
46
DRF
DSL bias
47
DSLF
DSL loop filter
48
PLLF
PLL loop filter
49
VCOF
Not used
50
AVDD2
+5V analog power supply
51
AFSS2
Analog ground
52
EFM
Not used
53
PCK/DSLB DSL bias
54
VCOF2
Tracking offset
55
SUBC
Not used
56
SBCK
(Connecting to ground)
57
VSS
Ground
58
X1
Crystal oscillator
59
X2
Crystal oscillator
60
VDD
+5V power supply
61,62
-
Not used
63
FCLK
Not used
Description
I/O
-
-
-
-
-
-
I
I
I
O
O
O
-
I
O
I
O
I
-
O
O
O
O
O
O
O
O
I
O
O
I
I
I
I
I
I
I
I
O
-
O
-
I
I
I
I/O
I/O
-
-
-
-
I
O
-
-
-
I
O
-
-
-
64
IPFLAG
65
FLAG
66-69
-
70
IOSEL
71
/TEST
(V)
72
AVDD1
73
OUTL
-
74
AVSS1
-
75
OUTR
-
76
RSEL
5.0
77
CSEL
0
78
PSEL
-
79
MSEL
0
80
SSEL
0
0
0
IC401 : MN101C117AF
0
Pin
Port
4.9
No.
-
1
MASHON
4.9
2
P82
2.5
3
P81
0
4
P80
3.1
5
Q1
4.9
6
Q3
-
7
Q6
2.5
8
SW4
2.5
9
SW5
0
10
SW2
2.5
11
PA6
2.5
12
PA7/IFR
2.5
13
VDD
2.5
14
OSC2
2.5
15
OSC1
2.5
16
VSS
2.5
17
NC
2.5
18
SOMI
2.5
19
SIMO
2.5
20
SCLM
2.5
21
P06
0
22
BD0
0
23
PC1
2.1
24
PS2
0
25
VDET
0
26
P14
4.5
27
CDON
-
28
IRQ1.SENS
2.5
E
-
29
IRQ2
1.7
30
LOD
1.6
31
TRV
0
32
/PRST
2.4
33
STAT
1.8
34
DMUTE
-
35
SUBQ
5.0
36
SQCK
0
37
/TLOCK
-
38
/FLOCK
2.4
39
NRST
2.5
40
MMOD
-
41
SENSE
-
42
MLD
0
43
MDATA
1.7
44
MCLK
2.3
5.0
-
-
8
Not used
Not used
Not used
(Connecting to ground)
(Connecting to ground)
+5V analog power supply
Audio Lch output
Analog ground
Audio Rch output
(Connecting to ground)
(Connecting to ground)
(Connecting to ground)
(Connecting to ground)
mode select
Description
Servo IC OSC control
No connection
No connection
(Connection to ground)
Photo sensor signal (DISC IN)
Photo sensor signal (DISC OUT)
Photo sensor signal (Option)
Clamp SW signal
Inner SW signal
Feeder arm SW
(Connection to ground)
(Connecting to ground)
+5V power supply
Crystal oscillator
Crystal oscillator
Ground
No connection
CD control data
CD control data
Data shift clock
Not used
Drop out signal
Loading motor driver control
Focus/Tracking driver control
Vibration detecting signal
No connection
CD on signal
(Connecting to groung)
(Connecting to ground)
Loading motor control
Traverse motor control
Servo IC reset
Status signal
DSP mute
Sub code Q data
Sub code Q clock
Tracking servo lock
Focus servo lock
reset input
(Connecting to ground)
Sense signal
Command load
Command data
Command clock
-
-
-
-
-
-
I
0
I
0
-
4.9
O
4.9
-
0
O
4.9
-
0
-
0
-
0
-
0
I
5.0
I/O
(V)
O
5.0
-
-
-
-
-
0
I
4.5
I
4.2
I
5.0
I
0
I
5.0
I
5.0
-
0
I
0
-
5.0
-
5.0
-
3.3
-
0
-
-
O
3.2
I
3.8
I
5.0
-
-
I
0
O
5.0
O
0
I
0
-
-
I
5.0
-
0
-
0
-
2.6
-
2.5
O
5.0
I
4.0
O
0
I
2.6
O
5.0
I
0
I
0
I
5.0
-
0
I
0
O
5.0
O
0.9
O
4.6

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