JVC FS-SD550R, Service Manual

Page: 23 / 31

FS-SD550R/FS-SD770R/FS-SD990R
1-23
3. Pin function
Pin
No.
Dymbol I/O
O
O
O
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
Pin
No.
Symbol I/O
42
41
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
O
I
I
I
I
O
BCLK
LRCK
SRDATA
DVDD1
DVSS1
TX
MCLK
MDATA
MLD
I
I
I
SENSE
FLOCK
TLOCK
BLKCK
SQCK
O
O
O
O
O
O
I
I
I
I
I
SUBQ
DMUTE
STATUS
I
O
O
RST
SMCK
PMCK
TRV
TVD
PC
ECM
ECS
KICK
TRD
O
O
O
O
O
O
O
I
I
I
FOD
VREF
FBAL
TBAL
FE
TE
I
I
I
I
I
RF ENV
VDET
OFT
TRCRS
I
O
RFDET
BDO
LDON
Function
Not used
Not used
Not used
Connected to GND
Digital audio interface output
Power supply (Digital)
CPU command clock signal input
CPU command load signal input
CPU command data input
Focus lock signal output Active :Low
Sense signal output
(Data is latched at signal's rising point)
Tracking lock signal output Active :Low
sub-code/block/clock signal output
Outside clock for sub-code Q resister input
Sub-code Q -code output
Connected to GND
Status signal
(CRC,CUE,CLVS,TTSTOP,ECLV,SQOK)
Reset signal input (L:Reset)
Not used
Not used
Traverse enforced output
Traverse drive output
Not used
Spindle motor drive signal (Enforced
mode output) 3-State
Spindle motor drive signal (Servo error
signal output)
Kick pulse output
Tracking drive output
Focus drive output
Reference voltage input pin for D/A
output block (TVD,FOD,FBA,TBAL)
Focus Balance adjust signal output
Tracking Balance adjust signal output
Focus error signal input (Analog input)
Tracking error signal input (Analog input)
RF envelope signal input (Analog input)
Vibration detect signal input (H:detect)
Off track signal input (H:off track)
Track cross signal input
RF detect signal input (L:detect)
BDO input pin (L:detect)
Laser ON signal output (H:on)
I
I
I
I/O
I/O
I
I
II
I
I
Function
Not used
Not used
PLLF2
TOFS
WVEL
ARF
IREF
DRF
DSLF
PLLF
Tracking error shunt signal output (H:shunt)
RF signal input
Reference current input pin
Bias pin for DSL
Not used
Loop filter pin for DSL
Loop filter pin for PLL
Power supply (Analog)
Connected to GND (Analog)
Not used
Not used
Not used
Not used
Not used
I
I
I
I
Connected to GND (for X'tal oscillation
circuit)
I
O
O
I
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Not used
Clock signal output (for RE & SERVO amp)
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Pull up
Connected to GND
Connected to GND
Connected to GND
pull up
pull up
pull up
Power supply (Digital)
Lch audio output
Connected to GND
Rch audio output
Power supply (for X'tal oscillation circuit)
Input of 16.9344MHz X'tal oscillation circuit
Output of X'tal oscillation circuit
VCOF
AVDD2
AVSS2
EFM
PCK
VCOF2
SUBC
SBCK
VSS
XI
X2
VDD
BYTCK
CLDCK
FLAG
IPPLAG
FLAG
CLVS
CRC
DEMPH
RESY
IOSEL
TEST
AVDD1
OUT L
AVSS1
OUT R
RSEL
SSEL
MSEL
PSEL
CSEL
MN662748RPM(2/2)