Sanyo DC-MS1 Service Manual page 29

.CK (CD SECTION)
. .
I
f
LA921OM (Servo Signal Processor)
IC BLOCK (CD SECTION)
IC104 LA7861 NE (Digital Signal Processor)
NO ~:; ~ ,, 0
DESCRIPllON
No ~yME ,,0
OESCRIPllON
1
I
TESTI ,
! For TEST, Normal ,,", t, ,70" ,onn,cl,on
I
31 SMP2 o OutPti ot ,;w,I to DAC, Sqnal of Laxh & L I R -led. s
40.
I
Name
11/01
Function II NO [ Nama 1!/01
Function
mnecl,on
. t ..-...-. ,- ,
1
I NC I Non ConnectIon
41 NC
Non Co!
I
2
VEE ] -5V
42
I
JP-
If
- Input of Track Jump Pulse Amphfier
1
3 I E I i
I IV Cmweti Im
- : ,?
,! 5 2
I"Put from "CO OUtmll ," LA92t0 (8 6436MHz)
Phase <omfmr,,o" OUt,?ut of "CO end EFM ,,gnal
OutP", of WUl ,0 iXC, SIg"al .f Lat<h & L / R select. S
O"tPut d wg"d ,0 DAC, Slgnat of La<ch 8 L / R elm. S
Nega,,"e oq"t lhrough ampl,,vde l,m,,er. An,,Dhaw of
O",P"l d WU! 10 DAC. S,; ".1 0{ latch & L , R ,,l,cI. S,
.rm" .
for 5amq4"lq Hda
EFMO Th,, ,$.".1 ",, SLICE LEVEL CONTROL
37 Df IN 0 For TEST Normal I,", !, n.. mn.emmn.
!"wtt,"g HP ,,yml of l-2 Vr..Q ThS, ,!gnal "se SLICE LWEL 38 LRSY o
8 fFMIN 1
for OU,WI o? ,9..1 !hat ccmPly *,,!, CL2.ROM
c0N7R0L.
39
CK2 0 F., w!W d >19".1
tha! COmPly w(,h CD. ROM
9 TEST2 o For TEST Normal ,,nv ,, non ,0".,",.",
.0 ROMO"T o
For Wtrwl 01 signal that COmPly '.w,h CD. NOM
10 CLV + o
O"t,?ul +or DISC MOTOR CONTROL. .! C2FLCK. o
13 CLV 0
For OUISXX CA sqnal tha, comply ..,th <D. ROM
output 107 Disc M070n cONIROL.
42 C2; 0 For output 0! $,$..1 tha: comply .wxh CD.R0M
I LXITAL OUT
Syn<hfcmuma qnd of ,"t.ccd, bl~k.
For .'orr.-~y.~:ns.r of C?, Cl, ,,"g!e, double
put
[from Pholo D,ocie E)
II
43
I
JP+
II
I + Input of Track Jump Pulse Amplri,er
I
.
4 F
I
IV Converf Input (fromPhoto d,ode F)
I
THLO [ I
5 FN I IV Converter Input
II
45 TGL I
6 FO o Iv c
7 TEAO
o
Trac
.-. . .
rackm~
8 VREF2 I Refe
9
etecl T
VREF3
I
Refe, =, ,.= . V,,09Z .
" A
., ,L" "
uetecl S
10 TES1 I Test Input
50 FOCS I Input Fo
11 ATSC I
+ Input of Anti Shxk
Detect Ampld,er
51
CLV- I
12
- Input of CLV Err
ATSC- 1 - Input
of Ant, Shock Oelecl Amphf,er
52
CLV + I + Input of CLV E
13
TPA +
I
- Input of Tracking Pulse Ampl,f,er
53 SLCO O
74 TPA- 1 + Inmd of
Tracking P.!se Arnnhfier 6A FFMO I
I Hold of Output
Voltage
of Tracking Servo
I
Tracking Gam Low
-j
: s ~
; l;;;;-sErorS,g.
Inp,,l For Off the Tracking SerVO
;k,ng Error Am?!,f,er Output
]r Off the Focus Servo
I
.
I = Th>, ,#gnal ",. SL,CE LEVEL CONTROL
I.l.x.. l.l PoMt,v, outPul through ,rnPl,,ude l,,ntter Ant,$.ha,, of
IFT=T
ror Ampldier
i
irror Amp fifter
I Slrce Level Control ArnnlifiM OCrIn,,t
CLV rough S,r"O %ome , OulPut 'H-
12 VIP 0
43 DO"T 0 0.,0., .,
Pha$e ,0",,.1 ,Ime , OU,P,,t-L - .
SBSY 0
13 Foes 0 OutPuT 'H. : L,r8 PUII "0 w,th slowly than ,,OP the FKU, ,5 EPLG .3
14 FST 0
SCIVO. If ~ gene,a,,. ,, ,S,, OU@ut of F OCS. For I,ad., n of .6 Pw c1
SF-," ,s SV.chmn,,lno s,o"al .{ .Ub-md. & tram. c,-, ,
t+
15 T
16 1 ,—, ,
!, , ,., ------ -----
. . . . . . .
1s1
FZD j , IFw,s
I
11:1::: l :l,.u,v..w.
tghth wti 10 S8CK then read 0"% :k ,ub.mde of P. Q.
COmP1y w,,h command of track ,umP, ,, MuI.,, k,ck Puke.
,. . . . ,
_
Input <
co c1
IX?X?
. ..-.
lFFFl==p- JP+ & JP. ,? jump the Prmmbed number of track (3,0,:6.64) .g
CW@y with command .1 track j.mP, 81 cxdllme k,ck Put,,.
17 lES ,
JP+ & jr. It jump the prexr, bed number of track (1,~,16.64~ 51 RWC I
78 PCK 0 PCK Monitor (4.3218w Hz]
I ou,mn of S,ruhronMng ,,gne.! (7 35.",)
, the CRC 'heck th, n WP.O do 'M-. I
~152
I
SQOUT I 01-...
.'
6,,uI a t , x,-m! Data
read . . . <mm? S00"1 ky send ,,
-"- ~ t.!,,,. P, OCQS,., the" #t k,
~-
SYNCIFS Oft,.th)
detected from EFM SIgnai = SYNC of
C..ntu : 'H- (Latch O.tp.t d..,. m 1 frame)
mmmacd bf icrd wilh Sytxhronmmg COCK <cmmand de
Comply w,th command of rr.ck jump, if oscillate k,ck Pulse
JP. & Jr. n OImO the prcxri~ number of track (1.4,16,64).
0,,, of SOOUl w,", M the LUS i,.,, x$", , M ! L ~ the
Tim, C"npca m. <0.,,01 ,1 *,,,1 Co",,ot from ?,4,<,0 F',ci
For TEST. Normal ,,rr,, ,, "o" <.".,,,,...
~-
Input for Focus Actuz.!or Co,l Driver
onirol
S,gn3f
n
aewo
bwmn
64
66/60 L . . . . Jf DSP LC7866 / LC7861
Connection
65 NC Non Connection
mpltfier Ou!put
66 OF2 Input for Defecl PulSe width Control
27
I
FE+ I I I + Input of Fcxxs E.ror Amplff,er
67 OF1 I
Input
for Defect Pulse wtdlh Control
28 FD +
II
+ l"pul of FOC"S Ac,ua,or CO(I Drcver
68 PH3
o Oeleci Detect Ttimlng
O I CLV Error Amphfier O"tpw
69 BH I Track Oetect Timmg
I for Spindle h#o:3r Dr!ver
70
PH I Fc?cusDetect Timmg
die Motor Driver Output
71
GND
32
Ground
I
VEE
I
I
-5V
72 RF SUM o RF SUM Amplifier Outpuf
33 SLDO
O [ Sled Molor Onver Oa:put 73 RFS-
IV Converter Output
ut of Sled Momr Driver
74
LDO Laser Dicde ON
.. , ...
. >.
25 JP * 0
: =
Cmrdy
wth 'Won!aod of
tra<k ,"mP. ,, WC,llat, k,<k Pul,e, ~ ~fl, ~
26 Jr 0
TM> OVtpul can <.nt,d ., S,,,* I con,,., ,,.O.I I.%*O ,,X
1P+ & JF. it jumP ,h. Prexr!Lml "umber ti tra<k (1,4,16.M).
~1 ,E~,5 ,
27 DEMO 1
For 71',7, Normal ,,mt ,, non ,onnectm.,
For adjmtm,n, 01 Pmductlon P?oce$,. Sourd 0" funomn.
28 TEST4 , For TEST. Normal time ,, .0" mnned,c. n.
ChlP selul Tmnmal. Th,, %emmnal 'L- : LC7866 i, aclive
29 EMPH 0 O"tP"t ,, 'H. time. ,, need d,.empha%,,
30 Df OFF 1
ON/ OFF Sw,t<hirq 01 D,.xal F,!,,,, Ou,Put 'H. F,l,e, OFF ~ ~o", ;
CO""UWW Twm,nd 01< ,,.! OX,llatiOr (1693WMH,)
Con.tiicn Tcminal of < nal GXI1l.tiOn (1693.4MHz]
29
I
SPO I (
30 SPO- I 1 j
[nput
31
I SPOO I O I
Soinc
34 SL- 1 - Inpt
35
SL + I
+ Iq
36 Vcc
+ 5V
37 SLSW I Sled
3s DEFO o Defec
39 FREL2 I
40
ORF O I Focusing Servo ON : H,gh Level
E
%2====3
'-put
of Auto Laser Power Control
put of Auto Laser Power Control
-.
, ,. Converi Input (From Photo D,ode A + C)
I I IV Convert Inpd (From Photo D,Ode B + O)
~ ~ 80 I vREF' 1
.+a,a.m ),-,,..6 ,
1 I
I I Y
.
I
ICI 02 BA6296FP
(Dual Motor & Actuator Coil Driver)
-36-
-37-