Panasonic RX-DT30, Руководство по обслуживанию

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RX-DT30
n
Terminal Function of ICs
l
IC702 (MN66271 RA)
Servo Processor / Digital Signal Processor /
I
I I
I
Pin
Mark
I/O
Function
No.
1 BCLK 0 Serial bit clock terminal (Not used, open)
2 LRCK 0 L/R discriminating signal (Not used, open)
3 SRDATA 0 Serial data (Not used, open)
4 DVDD1 I
Power
supply
(digital circuit) terminal
5 DVSS1
-
GND (digital circuit) terminal
6 TX 0 Digital audio interface signal
7 MCLK I Microprocessor command clock signal
I
8 MDATA I Microprocessorcommanddatasignal
9 MLD I Microprocessor command loadsignal
10
11
12
13
14
15
16
17
SENSE 0
Sense signal output
(OFT,FESL,MAGEND,NAJEND,FQSAD,SFG)
/FLOCK 0 Optical servo condition(focus)(‘L’
:
lead-in)
/TLOCK 0 Optical servo condition(tracking)(“L”
:
lead-in)
BLKCK 0 Sub-code block clock (f=75Hz)
External clock signal input for sub-code Cl
SQCK
1
register
SUBQ 0 Sub-code Q code output
DMUTE I Muting input (“H”
:
mute)
Status signal output
STAT
0 (CRC,CUE,CLVS,lTSTVP,FCLV,SQCK)
18
19
/RST
SMCK
I Reset input
1/2_divided clock signal of crystal oscillating at
0 MSEL=‘H” (fSMCK=8.4672MHz)
1/4-divided clock signal of crystal
oscillating
at MSEL=“L’(fSMCK=4.2336MHz)
20 PMCK 0 1/1 92-divided clock signal of crystal
oscillating(fPMCK=88.2kHz)
(Not used, open)
21 TRV 0 Traverse servo control output
22 TVD
0 Traverse drive signal output
23 PC 0 Spindle motor ON signal output (‘L” : ON)
24 ECM
0
Spindle motordrive signal output
(forced mode output)
- - -^_
Spindle motordrive signal output
25
ECS
26
KICK
27 TRD
0 (servo error signal output)
0 Kick pulse output
0 Tracking drive output
I
I I I
28 FOD 0 Focus drive output
29 VREF
I
D/A (drive) output (TVD,ECS,TRD,FOD,
FBAL,TBAL)
Reference voltage
input.
Digital Filter / D/A Converter
I , 1 1
I
Pin
Mark
I/O
No.
Function
30 FBAL
o Focus balance adjustment output
(Not used,open)
31 TBAL 0 Tracking balanceadjustmentoutput
32 FE I Focus error
signal
input (analog input)
33 T E I Tracking error signal input (analog input)
34 RFENV I RF envelope signal input
I I I I
I
35 VDET I Vibration detection signal input (“H”
:
detection)
36 OFT I Off-track signal input (“H”
:
off track)
I
,
I
1 (fPCK=4.321 MHz during normal playback)’
54 PDO
I 0
EFM and PCK
signals (Not used, open)
55 SUBC 0 Sub-code serial data output (Not used, open)
56 SBCK
I
Clock input for sub-code serial data
(Not used. open)
57 v s s - G N D
58 X l I Crystal oscillating circuit input (f=16.9344MHz)
59
60
/
X2 0 Crystal oscillating circuit output (f=16.9344MHz)
VDD
I
Power supply input (foroscillating circuit)
-26-