Mitsubishi Electric CQ-JB3160A Service Manual page 8

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