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Blockschaltbild - Block Diagram
Schema Synoptique - Schema a blocchi
— Version 2 —
2
PTE
ME
SOR
set
2
A
1
LS
Fr
MONS
mE
GK
a
a
—_
FS
SS
—_
—z
PS
TE
CT
CEE
Rely LSU
by
Q03/04/05
cog
N
=
TRANS - }-2
4,3218MHz Hn
@-
9)
OF
Qe
4
@ akxabits a
5
at
4
voc VEE
VERSAL |
£
!
@) RAM
ano
s
|
MIRROR
DETECTION
EFM
ROO _ 63)
8,
DAO)
DETECTION
OuTPUT
H
&
Ga)
CONTROL
I
!
qst
osTR>
=
REVISION
oO
EDGE
ISYNCHRI ocr
SHL
%
a:
Pee
FRAME
C)
|
4
Gi)
@9)
MUTE
CONTROL
SYNCHRO WORD
PLU
EFMS=EDCK
EDGE
DETECTION
PULSE
WIDTH
COUNTER,
LASER DIODE
RO21
OUTPUT ADJ.
PP
LASER MONI-
DIODE TOR
SS
DIODE
ENVELOPE
DETECTION
DIGITAL
c_|
eae
ley
whenJPR
128 Frames or more
196 Frames
MUT
iRO
—
|
a
(Measurement section)
—~— 19 pulses
to (MUT, MUI.
a0
mee
|
MU2)Timing
(Output section)
TRACKING
VARIABLE GAIN LOOP
IC 183
\
Suvponcedt E=MUTES
when JPR
MU2 Sound is reproduced
cpa oto3
_——|
2 |
ay
POSITIVE LOGIC
3
|
a
NON 208=4
fromier_otc1 ootan fap TPO]
8
13/IC202=1
[a
a!
[rToTot™]
9 |
vecz5V
GND
a!
wi |
r-
-~j-
—-—-—-— ——
S|
1C602
|
1
crext@)
ira) cop)
TRACKING
CIRCUIT
2
pp+2K x10bits ROM
+160x 4 bits RAM
9
=e
[ore ey
=Dncnw
IC601_
pp + 2K x 10 bits ROM
142
C162
(4) Tsw
ae
es
+160x 4 bits RAM
TRACKING
SERVO
GAIN ADJ.
IC 100
20)
pP 512x10bits ROM +32x4 bits RAM
i419]
= GAIN CONTROLLER
PS
during the initial read
'operation
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