Terminal Function Of Ic's - Panasonic SA-AK78 Service Manual

12 Terminal Function of IC's

12.1. IC701 (AN8839NSBE2) Servo Amplifier
Pin No. Mark I/O
1 PDE I
2 PDF I
3 VCC I
4 PDA I
5 PDB I
6 LPD I
7 LD O
8 RF O
9 RFIN I
10 CSBRT I
11 CEA I
12 BDO O
13 LDON I
14 GND —
12.2. IC702 (MN662790RSC) Servo processor/ Digital signal processor/
Digital filter/ D/A converter
No. Mark I/O
1 BCLK O
2 LRCK O
3 SRDATA O
4 DVDD1 I
5 DVSS1 I
6 TX O
7 MCLK I
8 MDATA I
9 MLD I
10 SENSE O
11 /FLOCK O
12 /TLOCK O
13 BLKCK O
14 SQCK I
15 SUBQ O
16 DMUTE I
17 STAT O
18 /RST I
19 SMCK O
20 CSEL I
21 TRV O
22 TVD O
23 PC O
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Function
Tracking signal input 1
Tracking signal input 2
Power supply
Focus signal input terminal 1
Focus signal input terminal 2
APC amp input
APC amp output
RFsumming output
Detector's input
Capacitor for OFTR connection
Capacitor for HPF amp connection
BDO output ("H" : drop out)
APC control
Ground
Function
N.C.
N.C.
N.C.
Power supply input (for digital
circuit)
GND (for digital circuit)
Digital audio interface signal
output (Latches data at first
transition)
Microprocessor command
clock signal input
Microprocessor command
data signal input
Microprocessor command
load signal input
Sense signal output (OFT,
FESL,MAGEND,NAJEND,PO
SAD,SFG) (Not used, open)
Focus servo feeding signal
output ("L" : Feed)
Tracking servo feeding signal
output ("L" : Feed)
Sub-code block clock signal
output (BLKCKf = 75Hz
during normal playback)
External clock signal input for
sub-code Q resistor
Sub-code Q code output
Muting input ("H" : mute)
Status signal output
(CRC,CUE,CLVS,TTSTVP,F
CLV,SQCK)
Reset signal input
1/2-diveded clock signal of
crystal osscillating at MSEL =
"H" (fSMCK = 8.4672 MHz)
1/4-divided clock signal of
crystal oscillating at MSEL =
"L" (fSMCK = 4.2336 MHz)
Frequency Selection Terminal
H = 33.8688 MHz ; L =
16.9344 MHz
N.C
Traverse drive output
Spindle motor ON output ("L"
: ON)
Pin No. Mark I/O
15 /RFDET O
16 PDOWN O
17 OFTR O
18 NC O
19 ENV O
20 NC I
21 NC I
22 TEN I
23 TEOUT O
24 FEOUT O
25 FEN I
26 VREF O
27 TBAL I
28 FBAL I
No. Mark
24 ECM O
25 ECS O
26 KICK O
27 TRD O
28 FOD O
29 VREF I
30 FBAL O
31 TBAL O
32 FE I
33 TE I
34 RFENV I
35 VDET I
36 OFT I
37 TRCRS I
38 /RFDET I
39 BDO I
40 LDON O
41 PLLF2 I/O
42 DSLF2 O
43 WVEL O
44 ARF I
45 IREF I
46 DRF I
47 DSLF I/O
48 PLLF I/O
49 VCOF I/O
50 AVDD2 I
51 AVSS2 I
13
Function
NRFDET output ("L" : detection)
Power-down input
OFTR output
N.C.
3T-ENV output
N.C.
N.C.
TE amp input
TE amp output
FE amp output
FE amp input
Reference voltage output
Tracking balance control
Focus balance control
I/O Function
Spindle motor drive signal
output(forced mode output)
Spindle motor drive signal
output
(servo error signal output)
N.C.
Tracking drive output
Focus drive output
D/A (drive) output (TVD, ECS,
TRD, FOD, FBAL, TBAL)
Reference voltage input
Focus balance adjustment
output
Tracking balance adjustment
output
Focus error signal input
(analog input)
Tracking error signal input
(analog input)
RF envelope signal input
Vibration detection signal
input ("H" :detection)
Off-track signal input ("H" : off
track)
Track cross signal input
RF detection signal input ("L"
: detection)
Dropout signal input ("H" :
Dropout)
Laser on signal output ("H" :
ON)
N.C.
Tracking Offset alignment
output/DSL Balance Output
(DA Output)
N.C.
RF signal input
Reference current input
DSL bias terminal (Not used,
open)
DSL loop filter terminal
PLL loop filter terminal
VCO loop filter terminal
Power supply input
analog circuit)
GND (for analog circuit)
SA-AK78
(for