Description - JVC UX-V30 Service Manual

UX-V30

3. Description

Pin
symbol I/O
No.
1 BCLK O Not used
2 LRCK O Not used
3 SRDATA O
Not used
4
DVDD1 Power supply (Digital)
5 DVSS1 Connected to GND
6 TX Digital audio interface output
O
com command clock signal input
7 MCLK
I
(Data is latched at signal's rising point)
8 MDATA I com command data input
9 MLD I com command load signal input
10 SENSE Sence signal output
O
11 O Focus lock signal output Active :Low
FLOCK
O
12 TLOCK Tracking lock signal output Active :Low
13 BLKCK O sub-code block clock signal output
14 SQCK I
Outside clock for sub-code Q resister input
15 SUBQ Sub-code Q -code output
O
16 DMUTE Connected to GND
Status signal
17 STATUS O
(CRC,CUE,CLVS,TTSTOP,ECLV,SQOK)
Reset signal input (L:Reset)
18 RST I
19 SMCK Not used
20 Not used
PMCK
21 O
TRV Traverse enforced output
22 O
TVD Traverse drive output
23 PC Not used
Spindle motor drive signal (Enforced
24 ECM
O
mode output) 3-State
Spindle motor drive signal (Servo error
25 ECS
O
signal output)
26 KICK O Kick pulse output
27 TRD
O Tracking drive output
28 FOD
O Focus drive output
Reference voltage input pin for D/A
29 VREF I
output block (TVD,FOD,FBA,TBAL)
30 FBAL Focus Balance adjust signal output
O
31 TBAL O Tracking Balance adjust signal output
32 FE Focus error signal input(Analog input)
I
TE
33 Tracking error signal input(Analog input)
I
34
RF ENV I RF envelope signal input(Analog input)
35
VDET I Vibration detect signal input(H:detect)
36 OFT Off track signal input(H:off track)
I
Track cross signal input
37 TRCRS I
RF detect signal input(L:detect)
38
I
RFDET
BDO input pin(L:detect)
39 BDO I
Laser ON signal output(H:on)
40 LDON O
1-22
Description
Pin
symbol I/O
No.
Tracking error shunt signal output(H:shunt)
41 TES O
42 PLAY
Not used
43 WVEL Not used
44 I
ARF RF signal input
45 IREF I Reference current input pin
46 DRF
I Bias pin for DSL
47 I/O Loop filter pin for DSL
DSLF
Loop filter pin for PLL
48 PLLF I/O
49 VCOF Not used
50 AVDD2 Power supply(Analog)
51 AVSS2
Connected to GND(Analog)
52 Not used
EFM
53 PCK Not used
54 PDO Not used
55 Not used
SUBC
56 SBCK
Not used
Connected to GND(for X'tal oscillation
57 VSS
circuit)
58 XI I Input of 16.9344MHz X'tal oscillation circuit
59 X2 Output of X'tal oscillation circuit
O
60 Power supply(for X'tal cscillation circuit)
VDD
61 BYTCK Not used
62 Not used
CLDCK
63 FLAG
Not used
64 IPPLAG Not used
65 FLAG Not used
66
CLVS Not used
67 Not used
CRC
68 DEMPH Not used
69 Not used
RESY
70 pull up
IOSEL
71 pull up
TEST
AVDD1 Power supply(Digital)
72
73 O Lch audio output
OUT L
74 AVSS1 Connected to GND
Rch audio output
75 OUT R O
pull up
76 RSEL
77 CSEL
Connected to GND
78 PSEL
Connected to GND
79 MSEL
Connected to GND
80 SSEL
Pull up
Description