Terminal Function Of Ics; Ic701 (An8839Nsbe2) Servo Amplifier; Ic702 (Mn662790Rsc) Servo Processor/ Digital Signal Processor/Digital Filter/ D/A Converter - Panasonic SA-AK18 Service Manual

SA-AK18

13 Terminal Function of ICs

13.1. IC701 (AN8839NSBE2) Servo Amplifier

Pin No. Mark
1 PDE
2 PDF
3 VCC
4 PDA
5 PDB
6 LPD
7 LD
8 RF
9 RFIN
10 CSBRT
11 CEA
12 BDO
13 LDON
14 GND
13.2. IC702 (MN662790RSC) Servo processor/ Digital signal processor/
Digital filter/ D/A converter
No. Mark
1 BCLK
2 LRCK
3 SRDATA
4 DVDD1
5 DVSS1
6 TX
7 MCLK
8 MDATA
9 MLD
10 SENSE
11 /FLOCK
12 /TLOCK
13 BLKCK
14 SQCK
15 SUBQ
16 DMUTE
17 STAT
18 /RST
19 SMCK
20 CSEL
21 TRV
22 TVD
23 PC
I/O Function
I Tracking signal input 1
I Tracking signal input 2
I Power supply
I Focus signal input terminal 1
I Focus signal input terminal 2
I APC amp input
O APC amp output
O RF summing output
I Detector's input
I Capacitor for OFTR connection
I Capacitor for HPF amp connection
O BDO output ("H" : drop out)
I APC control
— Ground
I/O Function
O N.C.
O N.C.
O N.C.
I Power supply input (for digital
circuit)
I GND (for digital circuit)
O Digital audio interface signal
output (Latches data at first
transition)
I Microprocessor command
clock signal input
I Microprocessor command
data signal input
I Microprocessor command
load signal input
O Sense signal output (OFT,
FESL,MAGEND,NAJEND,PO
SAD,SFG) (Not used, open)
O Focus servo feeding signal
output ("L" : Feed)
O Tracking servo feeding signal
output ("L" : Feed)
O Sub-code block clock signal
output (fBLKCK =
during normal playback)
I External clock signal input for
sub-code Q resistor
O Sub-code Q code output
I Muting input ("H": mute)
O Status signal output
(CRC,CUE,CLVS,TTSTVP,F
CLV,SQCK)
I Reset signal input
O 1/2-divided clock signal of
crystal oscillating at MSEL =
"H" (fSMCK = 8.4672 MHz)
1/4-divided clock signal of
crystal oscillating at MSEL =
"L" (fSMCK = 4.2336 MHz)
I Frequency Selection Terminal
H = 33.8688 MHz; L =
16.9344 MHz
O N.C.
O Traverse drive output
O Spindle motor ON output ("L"
: ON)
Pin No. Mark
15 /RFDET
16 PDOWN
17 OFTR
18 NC
19 ENV
20 NC
21 NC
22 TEN
23 TEOUT
24 FEOUT
25 FEN
26 VREF
27 TBAL
28 FBAL
No. Mark
24 ECM
25 ECS
26 KICK
27 TRD
28 FOD
29 VREF
30 FBAL
31 TBAL
32 FE
33 TE
34 RFENV
35 VDET
36 OFT
75Hz
37 TRCRS
38 /RFDET
39 BDO
40 LDON
41 PLLF2
42 DSLF2
43 WVEL
44 ARF
45 IREF
46 DRF
47 DSLF
48 PLLF
49 VCOF
50 AVDD2
51 AVSS2
22
I/O Function
O NRFDET output ("L" : detection)
O Power-down input
O OFTR output
O N.C.
O 3T-ENV output
I N.C.
I N.C.
I TE amp input
O TE amp output
O FE amp output
I FE amp input
O Reference voltage output
I Tracking balance control
I Focus balance control
I/O Function
O Spindle motor drive signal
output(forced mode output)
O Spindle motor drive signal
output
(servo error signal output)
O N.C.
O Tracking drive output
O Focus drive output
I D/A (drive) output (TVD, ECS,
TRD, FOD, FBAL, TBAL)
Reference voltage input
O Focus balance adjustment
output
O Tracking balance adjustment
output
I Focus error signal
(analog input)
I Tracking error signal input
(analog input)
I RF envelope signal input
I Vibration detection
input ("H" : detection)
I Off-track signal input ("H" : off
track)
I Track cross signal input
I RF detection signal input ("L"
: detection)
I Dropout signal input ("H" :
Dropout)
O Laser on signal output ("H" :
ON)
I/O N.C.
O Tracking Offset alignment
output/DSL Balance Output
(DA Output)
O N.C.
I RF signal input
I Reference current input
I DSL bias terminal (Not used,
open)
I/O DSL loop filter terminal
I/O PLL loop filter terminal
I/O VCO loop filter terminal
I Power supply input
analog circuit)
I GND (for analog circuit)
input
signal
(for