Philips 22RC026/00 User manual
Car
CD
changer
22RC026/00
Service
Service
Service
Contents
Specifications
Service
Interface
cable
connections
Functional
explanation
Notes
regarding
CD
player
repairs
Notes
regarding
handling
of
the
pick-up
Pick-up
detail
Disassembly
IC
circuit
descriptions
and
IC
block
diagrams
Block
diagram
PCB
layout
/
connections
Circuit
diagram
1/3
Circuit
diagram
2/3
Circuit
diagram
3/3
Trouble
shooting
12VCP
19
20
and
23
21
22
24
25
Exploded
view
CD
changer
mechanism
/
Lubrication
overview
28
Mechanical
parts
Exploded
view
cabinet
parts
Cabinet
parts
and
accessories
Electrical
parts
=
29
30
31
31
COMPACT
LASER
PRODUCT
DIGITAL
AUDIO
Published
by
Philips
Car
Systems
9672
Printed
in
The
Netherlands
©Copyright
reserved
Subject
to
modification
(GB)
4822
725
25470
56
PHILIPS
PHILIPS
SPECIFICATIONS
Power
supply
>
13.2VDC
(nom.)
Distortion
>:
<£0.01%
(at
1kHz)
©
16.0VDC
(max.)
Data
-
Track
mute
:
2
93dB
(A-weighted)
Frequency
response
:
20-20,000
Hz
(+
1dB)
Wow
and
flutter
:
unmeasurable
DAC
resolution
:
1
bit
per
channel
Output
voltage
>
700mV
Bus
interface
:
D?B
Operating
positions
:
Horizontal/Vertical/45°
Crosstalk
L<>R
:
<-75dB
Weight
:
2kg
S/N
ratio
‘
96dB
(A-weighted)
Dimensions
(HxWxD)
:
66x
259x175
mm
SERVICE
IMPORTANT
!!
!!
IMPORTANT
-
When
disassembling,
ALWAYS
protect
the
pick-up
unit
against
ESD
damage
by
closing
the
solder
connection
of
the
pick-up
unit
either
on
the
CD
panel
or
the
flexible
foil
pcb!
(See
also
the
repair
notes
and
disassembly
procedures
described
in
this
manual.)
-
New
pick-up
units
are
supplied
with
CLOSED
solder
connections
on
the
flexible
foil
pcb.
Do
NOT
forget
to
remove
the
solder
connection
AFTER
replacing
the
unit!
SERVICE
HINTS
|
-
To
prevent
magazine
check
(duration
approx.
30-40
sec.),
insert
the
magazine
and
press
the
‘eject’
button
SIMULTANEOUSLY.
In
that
case
disc
no.1
is
loaded
and
the
set
comes
into
'Standby'
mode.
-
Use
(home-made)
extension
cables
of
approx.
30
cm
to
get
access
to
the
bottom
side
of
the
main
pcb
for
measuring
purposes.
Two
extension
cables
(a
2-pole
and
a
5-pole
one)
are
required.
To
make
these
cables,
the
following
parts
can
be
ordered
and
used
for
making
the
extension
cables:
CS801
-
cable
assy
2-pole
-
4822
321
62668
-
CS802
-
cable
assy
5-pole
-
4822
320
11738
-
The
set
can
also
operate
without
cover,
but
take
care
of
the
following
measures:
-
ABSOLUTELY
NEVER
PERMIT
LASER
BEAMS
TO
ENTER
THE
EYES
-
DONOT
EXPOSE
THE
SET
TO
BRIGHT
(SUN)LIGHT
-
When
the
CD
changer
has
a
defect
while
the
magazine
is
still
in,
the
magazine
can
be
removed
by
moving
the
emergency
eject
lever
to
the
right
by
a
small
screwdriver,
as
shown
in
figure
1
below.
First
the
protection
sheet
has
to
be
removed.
DO
NOT
FORGET
to
put
the
sheet
back,
to
prevent
dust
intrusion!
When
a
disc
is
chucked,
turn
the
gear
to
the
right
until
the
slide
lever
reaches
to
the
edge
of
the
left
side
(see
figure
2).
Slide
lever
Cs
Gear
i
i
i
i
j
|
|
Figure
1
INTERFACE
CABLE
CONNECTIONS
Figure
2
22RC026
-2-
PCOS
62
459
INTERFACE
CABLE
CONNECTIONS
(continued)
The
figure
below
shows
the
pin
layout
of
the
connections
of
the
interface
cable
(service
12nc:
4822
321
62263)
and
the
extension
cable
(service
12nc:
4822
321
62671).
All
connections
here
are
seen
from
the
front
side
of
the
connectors.
Rectangle_C
connector
t
INTERFACE
CABLE
RECTANGLE_C
CONNECTOR
BUS_GND
Comer
+
12V
PERM.
7
[wen
Ce
SIGN_GND
(SHIELD)
|
(GND)
13-pole
DIN
female
female
13-pole
DIN
male
4
EXTENSION
CABLE
13-POLE
DIN
CONNECTOR
SIGN_GND
=
ew
Ce
7
[raven
on
ois
+
12V
PERM.
BUS_GND
_
Go
(straight
or
hooked
version)
.
we
8
‘od
6
6
ae.
O
8-pole
DIN:
8-pole
DIN
male
female
t
CD
CHANGER
CONNECTOR
8-POLE
DIN
CONNECTOR
22RC026
FUNCTIONAL
EXPLANATION
:
FUNTIONAL
EXPLANATION
1.
APC
(Auto
laser
power
control)
5.
Tracking
servo
This
is
the
circuit
to
control
laser
power
of
pickup,
and
laser
ON/OFF
is
set
by
command
from
micro
computer.
.
RF
Amplifier
(|
pattern
output)
This
inputs
pickup
photo
diode
output
current
(A+C)
to
FIN2
(ipin),
and
(B+D)
to
FIN1
(2pin).
Input
current
is
IV-converted,
and
output
to
RFSM
(41pin)
of
RFSM
amplifier
output
by.
way
of
AGC
circuit.
Self-contained
AGC
circuit
has
variable
range
of
+3dB,
and
the
time
constant
can
be
varied
by
outside-fixed
condenser
of
PH1
(60pin).
This
also
controls
bottom
level
of
EFM
signal
(RFSM
output),
and
this
response
can
be
varied
by
outside-fixed
condenser
of
BH1
(61pin).
Central
gain
of
AGC
variable
range
is
set
by
resistance
value
between
RFSM
(41pin)
and
RFS-(42pin).
.
SLC
(Slice
level
control)
SLC
makes
duty
of
EFM
signa!
which
is
input
to
DSP
50%.
This
judges
duty,
and
decides
DC
level
by
inte-
grating
EFMO
signal
which
is
output
from
DSP.
.
Focus
servo
Focus
error
signal
can
be
gained
by
detecting
the
dif-
ference
between
(A+C)
and
(B+D),
which
is
(B+D)-
(A+C),
and
it
is
sent
to
FE
(20pin).
Focus
error
signal
gain
is
set
by
resistance
value
between
FE
(20pin)
and
FE-(21pin).
FA
amplifier
is.
phase
compensating
Amplifier,
and
the
equalizer
curve
is
set
by
outside-fixed
condenser
and
resistance.
Besides,
this
amplifier
has
muting
function.
FD
amplifier
has
the
following
functions;
phase
com-
pensating
circuit,
focus
search
signal
synthesis,
and
offset
cancelling.
Focus
search
starts
by
F-SERCH
command,
and
generates
lamp
waveshape
by
inner
clock.
Focus
error
signal
by
this
waveshape
detects
in-
focus
condition
(focus
zero
cross),
and
turns
on
focus
servo.
Lamp
waveshape
amplitude
is
set
by
resistance
between
FD
(16pin)
and
FD-(17pin).
This
inputs
pickup
photo
diode
output
current
to
E
(Spin)
and
F
(4pin).
input
current
is
|V-converted,
and
output
to
TE
(7pin)
by
way
of
VCA
circuit
for
balance
adjustment
and
VCA
circuit
for
follow-up
to
RFAGC
cir-
cuit.
Tracking
error
gain
is
set
by
resistance
between
TE-(6pin)
and
TE
(7pin).
;
TOFF
amplifier
just
after
TE
(7pin)
turns
off
servo
b
TOFF
signal
from
DSP.
|
TH
amplifier
varies
servo
response
characteristic
by
TGL
signal
from
DSP.
or
by
THLD
signal
of
inside
for-
mation
by
detecting
JP
signal.
When
DEFECT
is
de-
tected,
inside
mode
changes
into
THLD.
This
can
be
avoided
by
causing
short
circuit
in
DEF
(49pin)
to
“L”’=GND.
In
case
of
detection,
gain
can
be
automati-
cally
up
by
configulating
outside
DC!
(9pin)
band
pass
filter
which
picks
up
only
shock
element
out
of
tracking
error
signals
and
putting
it
in.
TO
amplifier
has
the
function
of
synthesizing
JP
pulse
and
cancelling
tracking
offset:
JP
pulse
is
set
by
JP
(14pin)
(THLD
is
detected
inside
).
|
.
Sled
servo
SLEQ
(28pin)
sets
response
characteristic.
Amplifier
after
SLEQ
(28pin)
has
muting
function,
and
mutes
SLOF
(38pin)
by
“H”
or
SLED
OFF
command.
Sled
feed
is
operated
by
means
of
current
input
to
SL-
(30pin)
and
SL+(31pin),
that
is,
by
connecting
to
output
port
of
micro
computer
by
resistance
and
setting
feed-
ing
gain
by
the
resistance
value.
.
Spindle
servo
This
configurates,
together
with
DSP,
servo
circuit
to
keep
disc
linear
velocity
at
a
scheduled
level.
This
re-
ceives
signal
from
DSP
by
CV-(39pin)
and
CV+(40pin),
and
sets
equalizer
characteristic
by
SP
(23pin),
SP-
(36pin)
and
SPD
(27pin)
which
output
to
SPD
(27pin).
SPG
(25pin)
is
set
by
resistance
with
which
amplifier
gain
of
12cm
mode
is
connected
to
standard
voitage.
FUNCTIONAL
EXPLANATION
8.
TES,
HFL
(Traverse
signal)
10.
PCS
82
441
In
transferring
pickup
from
inner
track
to
outer
track,
EF
output
from
pickup
should
be
so
connected
that
HFL
and
TES
Nave
phase
relation
as
shown
in
the
figure
below.
TES
comparator
has
about
+100mvV
hysteresis
at
-polarity
comparator
against
TESI
input.
To
pickup
exclusively
necessary
signals
out
of
TE
signals,
band
pass
filter
is
configurated
outside.
.
DRF
(Beam
level
judgement)
DRF
becomes
“H”,
when
EFM
signal
(RFSM
output)
is
held
at
peak
value
by
condenser
of
PH1
(60pin)
and
peak
value
of
RFSM
gets
over
2.1V.
Condenser
of
PH1
(60pin)
is
related
to
setting
both
DRF
constant
when
detected
and
RFAGC
response.
—
ZEEE.
2:1
FE
7
\___________
\
,
bal
Pickup
position
|
Pa
In
focus
In-focus
judgement
This
detects
DEF+0.2V
of
focus
error
signal
S
curve,
and
then
judges
focus
zero
cross
(being
in
focus)
when
S
curve
becomes
REF.
sinepone
laos
‘REPO,
2V
5
i
Ne
a
EM
cad
ene
ra
dit
se
=
re
In
focus
11.
DEFECT
This
normally
maintain
mirror
surface
level
by
con-
denser
of
LF2
(59pin),
and
when
lack
of
EFM
signal
(RFSM
output)
gets
over
0.35V,
outputs
“H”
to
DEF
(49pin).
When
DEF
(49pin)
becomes
“H”,
tracking
N.Y
LF2
(S9PIN)
a
sy
ania
Pw
ewveed
rocco
=
eee
DEF
(49PIN)
7
12.
Reset
circuit
When
Vcc
gets
over
about
2.8V,
Power
on
Reset
is
cancelled.
22RC026
FUNCTIONAL
EXPLANATION
Mechanical
Timing
MAG
IN
H
ELv
+.
L
+
ELV
-
L
|
LOAD
+
L
:
y
a}
’
:
‘
LOAD
-
L
H
:
LOADOUT
s_L
;
a
4
CLAMP
L
}
:
H
’
'
UPLIMIT
L
|
: :
LOWLIMIT
—soL
. 1
H
'
4
DISC
ON
L
t
;
3
!
DISC
COUNT
L
!
H
'
MAG.SW
L
‘
‘
i]
'
'
'
1
0.6s0c
~
~-
15sec
-
\
’
{Disc
LOADING)
DISC
CHANGE(DISC1
—2)
H
ELV
+
L
,
|
ELV
-
u
5
t
:
4
|
‘
|
i]
LOAD
+
L
‘4
+
1
4
|
i]
LOAD
-
u
H
LOADOUT
L
H
CLAMP
kL
H
UPLIMIT
L
H
!
'
t
t
\
LowumitT
Lf
!
’
H
\
'
:
iH
1
4
I
t
'
;
i
'
DISC
ON
L
eH
DISC
COUNT
L
‘
t 4
'
t
|
Hn]
}
'
'
'
;
MAG.
SW
L
-
0.2sec
—
{ELV
DOWN)
=
1.5sec
—_
(Disc
LOADING)
=
1.5sec
a
(Disc
UNLOADING)
awaewoewew
ee
ewewtwewr
ne
ee
——<——<_s_eeeean
=
"ss
ee
eee
ee
mene
me
ew
eee
MAG
EJECT(DISC1
PLAY)
Hi
ELV
+
L.
a
ELV
-
L
H
LOAD
+
L
H
LOAD
-
L
La!
LOADOUT
L
a!
CLAMP
L
a]
UPLIMIT
L
4
LOWLIMIT
L
H
DISC
ON
L
a!
DISC
COUNT
L
4
MAG.SW
L
a!
EJECT
L
—+
meee
-
1.5sec
-_
asa
2.580c
=
=r,
3.0sec
rad
(Disc
UNLOADING)
(ELV
DOWN)
(ELV
UP)
PCS
82
442
22RC026
-6-
NOTES
REGARDING
HANDLING
OF
THE
PICKUP
Touching
this
part
can
cause
function
deterioration.
Please
be
careful
never
to
touch
this
part.
Flexible
wire
(connecting
wire)
PCB
Partially
fixed
VR
Holding
and
pulling
flexible
wire
can
cause
breaking
of
wire.
Please
be
sure
to
hoid
the
housing
itself
in
handling
PICKUP
DETAIL
PICKUP
FPC
(18P
PATTERN
SIDE)
DISASSEMBLY
1.
Remove
9
screws
(A)
securing
the
cabinet.
2.
Remove
the
cabinet
with
pushing
the
front
panel
stopper.
3.
Remove
the
front
panel
with
pushing
the
both
bottom
lid
stopper.
4.Remove
2
screws
@)
and
the
connector
(©)
Connect
P.C.B.
can
be
removed.
5.
Remove
the
cushion.
6.
Remove
the
damper.
7.
If
remove
the
spring
()
installed
between
the
mechanism
and
the
chassis,
also
mechanism
can
be
removed.
‘sy
Be
22RC026
REINFORCEMENT,DIN
Se
BOTTOM
LID
DAMPER
CUSHION
DISASSEMBLY
CD
MECHANISM
|
1)
How
to
remove
the
ELEVATOR
MOTOR,
FEED
MO-
TOR
and
the
LORDING
MOTOR.
(1)
How
to
remove
the
FEED
MOTOR.
1.
Short
the
short-pattern
of
FPC,
PU
with
sol-
der.
2.
Remove
the
two
screws
(SCR
S-TPG
PAN
PCS
2
x3)
which
fasten
the
MECHA-PANEL
(134).
The
MECHA-PANEL
can
be
removed.
3.
Remove
the
four
screw
(SCR
S-TPG
PAN
PCS
2x
4)
©1})
which
fasten
the
MAIN
PCB
|
4.
Remove
the
connectors
(CP801
and
CP802).
5.
Only
when
you
will
also
remove
the
ELEVATOR
MOTOR,
remove
FPC602.
6.
Remove
the
five
screws
(SCR
TPG
PAN
PCS
2x
4)
(10)
which
fasten
the
TOP
CHASSIS
C71).
The
TOP
CHASSIS
can
be
removed.
7.
Remove
the
two
screw
(SCR
S-TPG
PAN
PCS
2X
2.5)
(C55)
which
fasten
the
FEED
MOTOR
€54).
(2)
How
to
remove
the
ELEVATOR
MOTOR.
1,
Remove
the
SPECIAL
WASHER
(C5)
which
fasten
the
GEAR
A
(2)
and
the
GEAR
B
(3).
The
GEAR
A
and
the
GEAR
B
can
be
removed.
2.
Remove
the
two
screws
(SCR
S-TPG
PAN
PCS
2
x
2.5)
(C8)
which
fasten
the
ELEVATOR
MOTOR
(7).
The
ELEVATOR
MOTOR
can
be
removed.
MECHA-PANEL
ELEVATOR
MOTOR
DISASSEMBLY
(3)
How
to
remove
the
LOADING
MOTOR.
SLIDE
PLATE
1.
Remove
the
SPECIAL
WASHER
which
fasten
the
GEAR
LA
and
GEAR
LB(C5})
.
The
GEAR
LA
and
GEAR
LB
can
be
removed.
2.
Moving
the
slide
plate
C
€15)to
the
right,
lower
the
elevator
to
the
third
slot
position.
3.
Remove
the
two
screws
(SCR
S-TPG
PAN
PCS
2
2.5)
which
fasten
the
LOADING
MOTOR
=
LOADING
The
LOADING
MOTOR
can
be
removed.
|
MOTOR
2)
How
to
remove
the
PICKUP
and
the
SPINDLE
MOTOR.
(1)
How
to
remove
the
CD
PCB
and
PICKUP.
1.
Short
the
short-pattern
of
FPC,
PUC99
with
solder.
2.
Remove
CS903,
FPC602,
CP904,
CP905
and
CP906
from
the
connector.
3.
Remove
the
two
screws
(SCR
S-TPG
PAN
PCS
2
x
4)
(72)
and
one
screws
(SCR
S-TPG
BIN
27)
(C73)
which
fasten
the
CD
PCB
(cB.
4.
Remove
the
screw
(SCR
S-TPG
BIN
2X7)
which
fix
INSIDE
SWITCH
@78).
5.
Remove
the
two
screws
(SCR
PAN
PCS
1.7
3.5)
|
and
THRUST,
SCREW
(96),
PLATE,
SLIDE
Es?
will
come
off.
6.
Remove
the
two
screws
SPECIAL
SCREW
which
fix
SHAFT,
PICKUP,
A839).
FPC
PU
Short
circuit
soldering.
7.
Remove
the
SHAFT,
PICKUP,
A
from
the
PICKUP,
LASER
€87).
PICKUP.
LASER
The
PICKUP,
LASER
can
be
removed.
short
circuit
position.
8.
Cause
short
circuit
by
soldering
in
PICKUP,
LASER
|
Cause
shor
circuit
on
the
PICKUP,
LASER
(87)
_
Remove
FPC,
PU
CD
off
CONNECT,
and
CD
Hevea
raha
ea
oy
P.C.B
come
off.
FPC
PU
(C99)
off
PICKUP,
LASER
<e)
(ez
oma
‘YO
QUOD
|IIM
QZD)
HOLOW
SIGNIdS
pur
‘
ZZ9)
(22xl't
SOd
NWd
HOS)
MasOS
ay}
BAOWAY
‘Ss
89)
OSIC
‘HSA
“21
xy
YOIUM
(989)
HSHSVM
TWIDSdS
erowey
“>
(LD)
FTANIdS
‘SISSWHO
xy
Yo1UM
EZ9)
(yx
2
SOd
NWd
OdL-S
HOS)
Mads
au}
BAoWAaY
*E
6D)
d
'ANHOId
‘LAVHS
XI}
YoIUM
(E69)
M3YOS
WID3dS
SMAJ9S
OM}
3]
SAOWSY
°Z
a
8D)
M3HOS
‘L4VHS
‘ASSv
eu}
erowey
6D)
MAHOS
“SLV
Id
‘ONIdS
pue
(69)
M3YOS
‘W-LNNOW
x
YUM
G6)
(yxZ
SOd
NWd
Ddl-S
HOS)
MesJOS
aU]
SAOWAY
*1
‘YOLOW
JTONIdS
94}
SAOWA
0}
MOH
(Z)
AIEGWASsvVSIC
O
©
D
?)
=
om
=,
m
O
©
v
U
=
©
z
ne
ig
ig
Number
|
Code
1
|
PDO
4
7
AL
EFM
Fz
HFL
TGL
©
ro)
|
ah,
r
2.
“J
re)
o
nN
=)
m
I/
Function
Explanation
Defect
detection
signal
(DEF)
input
terminal.
(When
unused,
"L".)
For
PLL
Input
terminal
for
testing.
Pulldown
resistance
is
self-contained.
Phase
comparison
output
terminal
for
outer
VCO
control.
Power
supply
terminal
for
self-contained
VCO.
Normally
OV.
Resistance
connecting
terminal
for
PDO
output
current
adjustment.
Earthing
terminal
for
self-contained
VCO.
Normally
5V.
For
VCO
range
frequency
adjustment.
Earthing
terminal
for
digital
system.
Normally
OV.
For
slice
level
control
EFM
signal
reverse
output
terminal.
EFM
signal
output
terminal.
EFM
signal
input
terminal.
Input
terminal
for
testing.
Pulldown
resistance
is
self-contained.
|
oO
|
Output
terminal
for
spindle
servo
control.
Accelelates
when
CLV+
is
"H",
slows
down
when
CLV:
"H".
|
Output
terminal
for
automatic
switchover
monitor
by
rough
servo
/
phase
control.
"H"
on
Mm
or
7
my
m
Ti
=
Ol}
O
a
=
1
4
13
<
v
causes
rough
servo,
"L”
phase
control
mode.
Output
terminal
for
focus
servo
on/off.
"L"
causes
focus
servo
ON.
Output
terminal
for
focus
start
pulse.
Open
drain
output.
Input
terminal
for
focus
error
zero
cross
signal.
(When
unused,
"L".)
O
O
17
18
19
Input
terminal
for
track
detecting
signal.
Schmidt
input.
Input
terminal
for
tracking
error
signal.
Schmidt
input.
Clock
monitoring
terminal
for
EFM
data
playback.
At
the
time
of
phase
lock,
4.3218MHz.
|
Output
terminal
for
synchronous
signal
detection.
When
synchronous
signa!
detected
from
EFM
signal
and
synchronous
signal
occurring
inside
correspond,
"H".
Output
terminal
for
tracking
OFF.
Output
terminal
for
tracking
gain
switchover.
"L"
raises
gain.
Output
terminal
for
tracking
hold.
Output
terminal
for
testing.
Pulldown
resistance
is
self-contained.
2
nN
Y”)
m
O
24
27
Vop
Power
supply
terminal
for
digital
system.
Normally
5V
JP+
Output
terminal
for
track
jump.
When
JP+
is
"H",
accelerates
at
the
time
of
outer
track
direction
jump,
or
slows
down
at
the
time
of
inner
track
direction
jump.
When
JP-
is
"H",
JP—
accelerates
at
the
time
of
inner
track
direction
jump,
or
slows
down
at
the
time
of
outer
30
Input
terminal
for
sound
turn-on
function
at
the
time
of
set
adjustment
process.
Pulldown
resistance
is
self-containd.
|
TEST4
Input
terminal
for
testing.
Pulldown
resistance
is
self-containd.
EMPH
Output
terminal
for
deemphasis
monitor.
At
the
time
of
"H",
deemphasis
disc
ts
in
play-
back.
Digital
filter
output.
Word
clock
output.
RCH
data
output.
LCH
data
output.
Bit
clock
output.
Output
terminal
for
testing.
Open
(Normally
“L”
output).
Anti-shock
correspondence
Bit
clock
input.
input.
(Unused,
“L”.)
LRch
data.
35
36
51
1
1
34
22RC026
-14-
PCS
82
450
IC
CIRCUIT
DESCRIPTION
1C601
-
LC78620E
(CONT'D)
CLRSY_
Anti-shock
correspondence
Input
terminal
for
testing.
Normally
"L".
input.
(unused,
"L".)
Word
clock
output.
(When
unused,
"L".)
ROMXA
correspondence
input
L/R
clock
output.
Bit
clock
output.
DACLK
(At
the
time
of
RES)
Polarity
reverse
(CK2CON
mode)
Data
output
Data
(Supplement
(At
the
time
of
RES)
ROMOUT
(ROMXA
mode)
C2
Frag
output.
Mute
output
terminal.
Power
supply
terminal
for
L
channel.
Normally
5V.
L
channel
P
output
terminal.
L
channel
N
output
terminal.
Earthing
terminal
for
L
channel.
Normally
OV.
Earthing
terminal
for
R
channel.
Normally
OV.
R
channel
N
output
terminal.
R
channel
P
output
terminal.
7
|
54
|
RVo
|
|
Earthing
terminal
for
R
channel.
Normally
5V.
MUTER|
O
|
Mute
output
terminal.
|
56
DOUT
i
tor
Digital
OUT
output
terminal.
SBSY
Output
terminal
for
synchronous
signal
of
sub-code
block.
EFLG
Terminal
for
monitoring
C1,
C2,
single,
double
correction.
Output
terminal
for
sub-code
P,
Q,
R,
S, T,
U,
W.
ee
Output
terminal
for
synchronous
signal
of
sub-code
frame.
When
sub-code
is
in
standby,
"=L".
Input
terminal
for
sub-code
readout
clock.
Schmidt
input
Output
terminal
for
7.35KHz
synchronous
signal
which
is
divided
frequency
from
crystal
oscillation.
|
D
”
<
41
43
44
ROMAX
“6
48
4
For
1bit
DAC
Cc
+
m
LCHP
so
ives
|
Ts
|
Aves
|
[se
[AcHn
|
O
[sa
[ACHP
|
O
2)
aed
~
<
”
02)
©
A
=
O
D
©)
S
|
Output
terminal
for
sub-code
Q
output
standby.
Input
terminal
for
read/write
control.
SQOUT
Sub-code
Q
output
terminal
CON
3
3
K
11
R
©
z
Input
terminal
for
command
input
intake
clock,
or
sub-
code
offtake
clock
from
SQOUT.
Schmidt
input.
|
Chip
reset
input
terminal.
When
power
is
supplied,
changeover
to
"L"
once.
Input
terminal
for
testing.
Open
(normally
“L"
output).
Output
terminal
for
laser
ON/OFF.
Controls
by
serial
data
command
from
micro
com-
puter.
Input
terminal
for
command
from
micro
computer
C
M
16
—
16.9344MHz
output
terminal.
But
outputs
33.8688MHz,
only
in
case
of
quadruple
speed
playback
mode
4.2336MHz
output
terminal
CONT
TESTS5
CS
<
Vv)
#)
Chip
select
input
terminal.
Pulidown
resistance
is
self-contained
Earthing
terminal
for
crystal
oscillation.
Normally
OV
xv00
TEST1
Input
terminal
for
testing.
Pulldown
resistance
is
self-contained.
Connecting
terminal
for
16.9344MHz
crystal
oscillator.
Connects
33.8688MHz
crystal
oscillator,
in
case
of
quadruple
speed
playback
system
Power
supply
terminal
for
crystal
oscillation.
Normally
5V.
Input
terminal
for
testing.
Pulldown
resistance
is
self-contained...
Spare
output
terminal.
Controls
by
seria!
data
command
from
micro
computer.
°
e
.
s
x<
<
s)
o
57
61
67
70
71
72
73
74
75
76
77
78
79
IC
CIRCUIT
DESCRIPTION
IC851
-
MSM6307GS
PO
rt
.
Name
|
1/0
Description
a
a
bi-directional
address
or
data
us
“|/0
|
Sbit
bi-directional
address
or
data
bus
19
1/0
|
Differential
D2B
lines
of
the
intemal
driver/receiver
D7
1/0
|}
Bbit
bi-directional
address
or
data
‘DBP
1/0
|
Differential
D*B
lines
of
the
bus
intemal
driver/receiver
CC
ad
=
:
;
ECE
ReadNWrite
selector
BUS
OUT
Ea
D*B
output
(TTL
level)
eff
Selects
address
or
data
on
D0~D7
23}
BUS
IN|
DB
input
(TTL
jevel)
3
DS
|
Data
storobe
to
access
date
bus
6CK}
ez
Clock
input
6MHZ
resonetore
[af
ato
[interumoniot
ef
|
ror
et
Programmables
|7C
slave
addresses
27)
DO
1/0
|
8bit
bi-directional
address
or
data
b
DCae
:
Ce
ae
wpa
fd
|
Programmables
|7C
slave
addresses
13
us
14
1/0
|
12C
data
signal
input/output
|
02
1/0
|
8bit
bi-directional!
address
or
data
[9a
[ai
Bia
17C
clock
signal
input/output
7
CC
me
ein
as
on
Us
.
ie
wae
ae
obit
bi-directional
address
or
data
US
Port
:
to
Nahe
|e]
description
_
ite
|
—
[a
}
Kc
ilC
CIRCUIT
BLOCK
DIAGRAM
10851
-
MSM6307GS
6MC}
6MCO
Vod
GND
TEST
he
GENE
RATE
CIRCUIT
ORIVER
&
CONTROL
FILTER
CONTROL
IC601
-
LC78620E
ADDRESS
GENERATOR
Seer
CIC2
ERROR
penn
DETECTION
DIGITAL
Aah
poo
FLAG
PROCESSING
(5)
ar
x
te
SUB
CODE
{|
SEPARATION
aol
sBsyp7)
Q-CRC
x
WRO,
SoouT
eg
jtareree
COCK
6?)
mc
aoe
=i
o—)
COMM
AND
8-TIMES
e-
OVERSAMPLING
[|
920FOL0
DIGITAL
FILTER
a
ea
LRCKO
IBIT
DAC
J
Sbcededoaae
CO?
AXLHTSS9—-E3—T
LONE,
79H
CA
EIEBAT
SONOS
W
oO
ws
i
O'
rjest,5
“
x
iF
o
Ww
AW
Toe
Ss
oS
ra
ois
Zig
w
&
Le
9
go
a
Wen
Be
2
w
=>
>
SOY
y
ovPILTov
iip
ee
rs
oS
ee
a
ON
ee
Oe
Re
re
oS
IC
CIRCUIT
DESCRIPTION
IC650
-
LA9240MS
|
PINNo.
|
PART
NAME
EXPLANATION
Pickup
photo-diode
connecting
pin.
Forms
RF
signal
by
addition
to
FIN1
pin,
and
FE
signal
by
subtrac:
tion.
Pickup
photo-diode
connecting
pin.
Pickup
photo-diode
connecting
pin.
Forms
TE
signal
by
subtraction
from
F
pin.
Pickup
photo-diode
connecting
pin.
Pin
for
inputting
DC
constituent
of
TE
signal.
Pin
for
connecting
gain
setting
resistence
of
TE
signal
to
TE
pin.
TE
signal
output
pin.
TES
(TRACK
ERROR
SENCE)
comparator
input
pin.
Band
Pass
TE
signal,
and
input.
Input
pin
for
shock
detection.
Constant
setting
pin
at
the
time
of
tracking
gain.
Pin
for
connecting
high
pass
elimination
condensor
of
servo.
Pin
for
constituting
tracking
phase
compensation
constant
between
TD
and
VR
pin.
Pin
for
setting
tracking
phase
compensation.
Pin
for
setting
tracking
jump
signal
(kick
pulse)
amplitude.
Tracking
control
signal
output
pin.
Focusing
contro!
signal
output
pin.
Pin
for
constituting
focussing
phase
compensation
constant
between
FD
and
FA
pin.
Pin
for
constituting
focussing
phase
compensation
constant
between
FA-
and
FE-
pin.
Pin
for
constituting
focussing
phase
compensation
constant
between
FA
and
FE
pin.
FE
signa!
output
pin.
Pin
for
connecting
FE
signal
gain
setting
resistance
to
TE
pin.
GND
for
analog
signal.
Single
end
output
of
CV+
and
CV-
pin
input
signal.
Spindle
amplifier
input.
Connecting
pin
for
gain
setting
resistance
at
the
time
of
spindle
12cm
mode.
Connecting
pin
for
Spindle
phase
compensation
constant
together
with
SPD
pin.
Spindle
control
signal
output
pin.
Connecting
pin
for
sled
phase
compensation
constant.
Sled
control
signal
output
pin.
Input
pin
for
sled
delivery
signal
from
micro
computer.
Input
pin
for
sled
delivery
signal
from
micro
computer.
Input
pin
for
tracking
jump
signal
from
DSP.
Input
pin
for
tracking
jump
signal
from
DSP.
Input
pin
for
tracking
gain
control
signal
from
DSP.
Gain
low
in
case
of
TGL="H".
Input
pin
for
tracking
off
control
signal
from
DSP.
Off
in
case
of
TOFF="H".
Output
pin
of
TES
signal
to
DSP.
(HIGH
FREQENCY
LEVEL)
is
used
to
judge
whether
main
beam
is
located
above
pit
or
above
mirror
Sled
servo
off
control
input
pin.
Input
pin
for
CLV
error
signal
from
DSP.
Input
pin
for
CLV
error
signal
from
DSP.
RF
output
pin.
Pin
for
setting
RF
gain
and
EFM
signal
3T
compensation
constant
together
with
RFSM
pin.
(SLICE
LEVEL
CONTROL)
is
output
pin
for
controlling
data
slice
level
by
RF
waveshape
DSP.
Input
pin
for
controlling
data
slice
level
by
DSP.
GND
pin
of
digital
system.
For
Focs
Smoosing
capacita
output
pin.
Tracking
Balance
control
pin.
NO
CONNECT.
Output
pin
for
detecting
disc
defect.
Standard
clock
input
pin.
DSP4.23MHz
is
input.
Micro
computer
command
clock
input
pin.
Micro
computer
command
data
input
pin.
Micro
computer
command
chip
enable
input
pin.
(DEFECT
RF)
RF
level
detecting
output.
Focs
serch
select
pin.
VCC
pin
for
servo
system
and
digital
system.
Connection
pin
for
standard
voltage
capacitor.
Standard
voltage
output
pin.
Pin
for
setting
constant
at
the
time
of
detecting
disc
defect.
Pin
for
connecting
condensor
for
RF
signal
peak
hold.
Pin
for
connecting
condensor
for
RF
signal
bottom
hold.
APC
circuit
output
pin.
APC
circuit
input
pin.
RF
system
VCC
pin.
-_—
2
3
4
5
6
7
8
9
IC
CIRCUIT
DESCRIPTION
IC650
-
LA9240MS
INTER
FACE
SPINDLE
SERVO
FL
SERVO
G
F.LOGIC
IC651
-
BA6999FP
C9)
9)
9
3
C)
EO
A'—(8)-
1-1)
5)
THERMAL
SHUTDOWN
PGND
PVcc
@
CHI
MUTE
CH4
*
DRIVER
CH3
DRIVER
>
ee
en
a
ool
el
a
aa
ae
al
oe
OP
AMP
CH2
MUTE
CH2
:
DRIVER
ia
DRIVER
Onn
On
Oen®
S)
-
16
-
IC
CIRCUIT
BLOCK
DIAGRAM
IC801
-
LC66566B
8bit
bi-directional
address
or
data
bus
028
Tr
62
«D6
Ss—ti<‘i‘iC*CT
OBI
-dirlectinal
address
or
data
bus
D2B
T4014
sts—<‘i«é‘iS‘*CT
BHU
-diecttional
address
or
data
bus.
D2B
T
§
6
D3
tsti<‘i«~té‘é‘i:C
OB
i-cirecttional
address
or
data
bus
02B
6
102.
|
I/O]Bbit
bi-directional
address
or
data
bus
r
7)
(DT
ti<“‘é
LCT
/O
BHU
Di-directional
address
or
data
bus
D2B
|
8
=6©(D0))~—t—<“<i«~‘iSCrT
OO
BH
i-diecttionnal
address
or
data
bus
|
028
[9
{CLAMP
|
I
[Disc clamp
finish
SW
input
T7305
~~
+'|
©
|Data
strobe
to
access
data
bus
14
{A/D
|
0
[Selects
address
or
data
on
DO~D7
Ss
P75
(RW
'|0
[Read/Write
selector
CSB
76
(N.C
|
0
[Noconnection.
OCC
rt7_IN.©C
[0
|Noconnection
—CC
[78
INC
|
0
[Noconnection
CCC
19
INC
[|
0
[Noconnection————C—C—C—C
[—30_IN.C.
1.0
[No
connection.
CCC“
|
peo
A
Vor
2
en
GONG
ce
ed
ea
[25
l0SC2
|
0
|Ceramic
oscillator
connection
terminal
for
system
clock
P
ain
power
supply
ON/OFF
output
terminal
o
connection
levator
moving-down
output
signal
levator
moving-up
output
signal
ickup
moving-inside
ouput
signal
ickup
moving-outside
output
signa!
utput
to
move
a
tray
in
the
direction
out
of
magazine
with
loading
motor
utput
to
move
a
tray
in
the
direction
back
to
magazine
with
loading
motor
Oo
connection
o
connection
eference
voltage
for
TH!
eference
voltage
for TH2
emperature
sensor
ON
input
signal
emperature
sensor
OFF
input
signa]
CC
ON/OFF
detection
input
isc
detection
Photo
transistor
input
terminal
agazine
eject
key
input
terminal
ocus
OK
signal
input
terminal
o
connection
Yevator
position
detection
pulse
input
nitial
setting
input
termina)
for
6discs
or
10discs
changer
switching
ute
output
terminal
set
signal
for
DSP(LC78620E)
output
terminal
gazine
tray
detection
SW
input
nner
circle
limit
detection
SW
input
©
CH
SII
m
-O
=<
iv=
OAD+
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H1
H2
CC
DI]
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1
SY]
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op
tS
=
JECT
RF
corm
D
=
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|
Komen
|
fn)
fd
Od
P-cell
|
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El:
oO
Dolo
>
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PIPl+]
T+
=
NO
jf
I
ISC.C
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UTE
ORST
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NSIDE
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a
I
I
03
04
anon
ful
fe]
|
Pe]
|
|
|
|
Cop
Co]
Co]
GC] Co]
C2] Co]
Go]
CO]
Co
—_
CO]
CO]
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CD]
Cr
1
Go]
PO]
—]
Coy
CO]
OO]
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Oo]
OF
42]
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hol]
1
|
55
N.C
No
connection
I
|
98
(COIN,
p59
COCK
|
60)
6
fWRQttsi«dY:SCS:séS
Interface
with
DSP(LC78620E
No
connection
No
connection
|
|
64
|STBY
I
PCS
82
453
IC
CIRCUIT
BLOCK
DIAGRAM
IC801
-
LC66566B
‘a
RAM
STACK
(512W)
non
:
(I2K/I6K)
|
&
SYSTEM
osc
(@)—=|
CONTROL
HOLD
64)
BO
INTO
=o
pW
~
CMP
T=
|
a
eS
eR
RS
6
NTT
CMPRS)
Te
S<
)
ane
INTERRUPT
(5)
S11
ec
Ko
|
ICONTROL
ERIAL
1/0
|
+
oh)s01
|
(1)
SCKI
R
|
S
paced
Lic
:
See,
Ul
Gira),
[PO
[rl
[Pz [ps
|
Pa
|
rs
|
pe
[pr
jes
fre
|
Gr
ruefgeui
8
|
Pg
BLU
OY
IC701
-
PCM1710U
LRCIN
ML’/DSD
DIN
MC/DM2
DIGITAL
FILTER
BCKIN
MD/DM1
CLKO
MUTE
“KTI
>
MODE
KTO
CKSL
DGND
22)
pGno
5-LEVEL
DAC
veceR
(9)
RIGHT
vCC2L
AGND2R
(10)
AGND2L
EXTIR
EXTIL
CMOS
AMP
EXT2R
eee
EXT2ZL
VOUTR
(13)
VOUTL
AGND1
VCTI
-17-
22RC026
IC
CIRCUIT
BLOCK
DIAGRAM
IC850
-
LB1644
OUT1
OUT2
OUT3
OUT4
oo
mcm
il
Tear
[esewer
|
|
|
tf
emeenr}
Seer
+
oe
+
Seemmaeel
vec
E
DRIVER
PRE
ORIVER
IC501
-
MCM7805
/1C551
-
L78MO5T
IC802
-
S-8054HN
INPUT
i
C~)
S
=
OVER
|
CURRENT
PROTECTION
DIFFE-
RENCE
i
ae
HEAT
PROTECTION
START
REFERENCE
CIRCUIT
VOLTAGE
IC803
-
PST9138N
OUTPUT
GND
1C702
-
NJM2100M
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