Pioneer PR-8210-A User manual

Б ДУ,
с
РТИапиа1
|
=
ORDER
NO.
VRT-019-0
VIDEO DISC PLAYER
8-8210-А
~
eS
CONTENTS
1.
SPECIFICATIONS
аа.
2
11-2
SYPS,
LSPS
AND
МСМВ............
76
2.
PARTS
АМО
CONTROLS
...............
3
TUSUREAMUS
Ы
лы
t
EM
Ed
81
3.
CONNECTIONS...
5
114
УЗОР,
CPCB
AND
Р$СВ............
83
4.
DISASSEMBLY
.......
ре
Dieu
1:5
AUDX
occ
ccc
ccc
ыа
ea
94
5.
CIRCUIT
DESCRIPTIONS
...............
9
11.6
CONT,
GATB
AND
IOIB
...........
98
»^
6.
SAFETY
CHECK
.....2...............
39
112
КЕҮС
AND
IRAB
................
104
t
7.
MECHANICAL
ADJUSTMENTS
........
a
12.
EXPLODED
VIEWS
AND
PARTS
LISTS
....
108
.
8.
SLIDER
ASSEMBLY
AND
ALIGNMENTS
...
45
12-1
EXTERNAL
AND
TOP
VIEW
........
108
9.
ELECTRICAL
ADJUSTMENTS
............
53
122
BOTTOM
VIEW
..................
111
10.
TROUBLE
SHOOTING
.............
‚..
68
123
SLIDER
с...
114
11.
SCHEMATIC
DIAGRAMS,
PCB
13.
SAFETY
INFORMATION
...............
116
PATTERNS
AND
PARTS
LISTS
..........
723
14.
PACKING
PROCESS
...................
117
11-1
OVERALL
isses
ee
73
О PIONEER’
pm
PIONEER
ELECTRONIC
CORPORATION
4-1.
Meguro
1-Ch^orne,
Meguro-ku,
Tokyo
153,
Japac
PIONEER
ELECTRONICS
(ОВАЈ
INC.
РО.
Box
1760,
Long
Beach,
Самого
e
90801
USA
PIONEER
ELECTRONIC
[EUROPE]
М.М.
Keetbenglaan
1,
2740
Beveren,
Begum
PIONEER
ELECTRONICS
AUSTRALIA
РТУ.
LTD.
178-184
Boundary
Fload,
Braeside.
v
ctor
a
3195,
Азатгета
Printed in Japan МЕ $1 10

PR-8210-A
1. SPECIFICATIONS
General
System and disc spec.
ЕЕ
Comply
with
MCA
Philips
specifications
*1 Maximum playing time
bw n rub АТ Standard play videodisc: 30 minutes/side
..... . Extended play videodisc: 60 minutes/side
Spindle motor revolutions
"P Standard play videodisc: 1800 RPM
SAMT NE RUE a Extended play videodisc: 1800 RPM
(inner circumference)
to 600 RPM {outer circumference}
Laser е 6328 angstrom, He-Ne 1mW
Video Characteristics
Format seated ае ay PG NTSC specification
Video output
Level ... 1Vp-p nominal, sync. negative, terminated
impedance ............., 75 ohm unbalanced
Terminal ЕЕН aN BNC type jack
Signal to noise ratio ............ More than 42dB
Audio Characteristics
Audio output.......-. Two channels; stereo or two
individual channels
Level ........ 650mV nominal (1kHz 100% mod.
50 kilohms terminated)
Impedance ..... Less than 2.2 kilohms unbalanced
Terminal с, ва ваља Stereo pinjacks
Total harmonic distortion . Less than 0.396
(1kHz 7596 mod.)
Signal to noise ratio ............ More than 70dB
(CX encoded disc, CX NR ON, 1kHz 650mV
output, using IHF A network)
Frequency response. . . 40Hz to 20kHz (+3dB reference
to 1КН2 10% mod.)
External controls
Terminal: zs TET 24 Pins amphenol type
Functions
CAV CLV
Play (Normal play mode with sounds) ... YES YES
Pause (Pause mode without picture
and sounds) «o ius ыы tm тағы YES YES
Scan forward/reverse ............... YES YES
Others
Power requirements ............ AC 120V, 60Hz
Power consumptions ................. 85-watts
Dimensions ........ 525(W) x 408(D) x 143(H) mm.
20-21/32(W) x 15-13/16(D) x 5-5/8(H) in.
Net weight (without package) ...... 13.5kg (29.8 lbs)
Furnished Accessories
Audio connecting cords with pinplugs .......... 1
Operating instructions ..................... 1
NOTES:
Specifications and the design subject to possible modifica-
tion without notice, due to improvements.
*1 Actual playback time differs for each disc.
we

=
2.
PARTS
AND
CONTROLS
®
DISC
CLAMP
This
holds
the
disc
onto
the
turntable
when
the
hood
is
closed
to
assure
that
the
disc
rotates
smoothly.
@ TURNTABLE
Place
a
disc
on
this
platter
so
it
fits
over
the
raised
center
hub.
The
turntable
is
directly
connected
to
the
motor
so
the
precise
speed
is
maintained
at
all
times.
($ OBJECTIVE LENS
This
lens
focuses
the
laser
beam
onto
the
disc
and
picks
up
the
beam
reflected
back
from
the
disc.
Note
that
the
lens
surface
must
be
kept
clean
in
order
to
maintain
optimum
performance.
@ POWER
Press this switch to turn power on and off.
® POWER INDICATOR
This lights up to show the power is on.
© REJECT/OPEN
Press this key to cut off operation and to open the
hood.
(D HOOD UNLOCKED INDICATOR
This
indicator
lights
up
when
the
hood
is
open
and
goes
out
when
the
hood
is
completely
closed
and
locked.
Note
that
the
player
can
not
be
operated
until
this
indicator
goes
out.
(& STAND BY INDICATOR
This indicator flashes on and off during those peri-
ods when some time is required for the player to
switch to the next commanded function mode.
For example: When > marked end of the PLAY/
PAUSE
key
is
pressed
after
REJECT,
during
the
return period.
@ DISC INDICATORS
A
few
moments
after
»
marked
end
of
the
PLAY/
PAUSE
key
has
been
pressed,
опе
of
these
indica-
tors
shows
whether
a
CAV
or
CLV
disc
is
being
played.
@ PLAYBACK MODE INDICATORS
One of these indicators shows the playback mode
presently selected.

PR-8210-A
1)
CX
INDICATOR
This
indicator
lights
when
the
CX
noise
reduction
system
is
activated.
42
AUDIO
INDICATORS
These
indicators
show
whether
only
one
or
both
audio
channels
are
being
heard.
@
SLOW
SPEED
CONTROL
Use
this
contro!
to
adjust
the
speed
of
slow
motion
playback.
NOTE:
Slow
motion
playback
is
possible
only
when
an
ex-
ternal
controller
is
being
used
to
contro!
the
player.
Slow
motion
playback
can
not
be
рег-
formed
using
the
buttons
on
the
player
itself.
@ PLAY/PAUSE
Pressing
the
|»
mark
on
the
upperside
of
the
switch
starts
playback
or
returns
to
normal
play
mode
from
another
mode.
To
temporarily
stop
playback,
press
the
М
mark
on
the
lower
side
of
the
switch.
This
stops
the
pickup,
turns
off
both
picture
and
sound.
Pressing
the
И
mark
again
can-
cels
the
pause
mode.
4$ SCAN
Use
this
key
to
quickly
locate
a
particular
part
of
the
disc
program
or
skip
a
part
of
the
program.
pe
:
press
to
scan
quickly
forward
44:
press
to
scan
quickly
backward
4%
AUDIO
1/1,
2/R
Use
this
key
to
turn
sound
off
and
on
in
the
left
or
right
channel.
Pressing
either
end
of
the
key
turns
off
sound
in
that
channel;
press
again
to
turn
sound
back
on.
@ CX SYSTEM
This
key
turns
the
CX
noise
reduction
system
on
and
off.
Turn
the
CX
system
on
when
playing
a
CX
encoded
disc.

3.
CONNECTIONS
PR-8210-A
22)
~ ә)
6)
e
VIDEO IN
1
ME 1
|
і Stereo amplifier
|
Use the coaxial cable to connect the VIDEO OUT
terminal on the player to the video input terminal
on the monitor TV or other video equipment
(terminated video input terminal).
Audio output on the player should be connected
to the audio inputs of the monitor TV (or other
video equipment) or to the stereo system for audio
reproduction.
@ AUDIO OUT
These jacks provide the left and right channel
audio signals for connection to a stereo hi-fi sys-
tem.
(à EXT CONTROL
This terminal is used as an МО port when the
player is controlled by a controller.
Video monitor TV or
othar video equipment
NOTE:
The
connections
diagram
shows
only
one
example
of
the
possible
ways
to
perform
connections.
The
method
of
connection
differs
depending
on
the
control
unit,
video
equipment
and
other
units
being
used.
© VIDEO OUT
The terminal is for connection to a color video
monitor TV or other video equipment (that have
video input terminal). It provides the direct video
signal.
@ POWER CORD
Plug this into a wall socket.

E
a«a
I
=
4. DISASSEMBLY
1. ENCLOSURE AND PCBS
‚^^
А В
С
ты
CC
Caution label B
VRW-O71
Under housing
@ Unscrew 7 screws
marked 6).
Printed circuit Front panel
boards p
* Unscrew 4 screws * Unscrew 3 screw:
marked $). marked @..
Top housing
* Undo the под, and $1
disengage the locking
* Unscrew 3 screws mi
the turntable.
* Unscrew 9 screws mi
Remove parts in the order
above sequence diagram. For exa
© © the top housing, the under housing
and the hood must first be remove
Note: Loosen the shipping screw |
ing disassembly procedures
tion of repairs, check th
screw, lens cap, shield ca
other shields have been f
positions.
3 7

PR-8210-A
2. HOW TO REMOVE SLIDER FROM
MECH-CHASSIS
1.
Remove
the
four
fixing
screws
on
the
VSOP
board, and open the VSOP.
2. Put the slider harness out of the joint by re-
moving
the
E
washer,
and
disconnect
the
A
housings N4, N5, and high voltage cap.
.
Remove
the
two
screws
installed
the
slider-pot
assembly.
К
.
Remove
the
four
screws
installed
the
rail
near
„ the slider pot.
©з
NN
N
SLIDER
ES
UN
WARNING: EXTREME CARE MUST BE EXERCIS-
ED TO "LSPS" BOARD WHILE WORKING WITH
THE PLAYER TO PREVENT POSSIBILITY OF
EXPOSING YOURSELF TO DANGEROUS VOLT-
AGES.
er housing
Unscrew 7 screws
marked .6`.
* Open the hood,
and unscrew
6 screws |
nt
panel
marked
(V.
Unscrew 3 screws
marked :4..
) housing
jo the ring, and shift to one side to
ngage the locking catches.
crew 3 screws marked (2), and remove
y
turntabie. _
crew 9 screws marked (3:. (
¢ f
SA Эм
. the order indicated in the
am. For example, to remove
inder housing, the front panel
st be removed. М
93
pping screw before commenc-
y procedures. Upon comple-
s, check that the shipping
ip, shield case, barrier, and
have been fixed in suitable

—
PR-8210-A
5. CIRCUIT DESCRIPTIONS
5-1 RFAM
RFAM consists of PHDB (photo detector is an emitter follower. The RF OUT signal is
board) and HEDA (head amp) is mounted on the extracted from this point.
slider assembly. The photo detector mounted on The four focus control signals are B1 thru ВА.
PHDB picks up the various signals, and after The sums of B1 and B3, and the sums of B2 and
passing them through a filter choke to eliminate B4 are sent to their respective OP amps (Z2) where
the 620MHz spurious signal generated by the laser they are amplified about 17dB, then output as
tube, outputs them to HEDA. FOCS А and FOCS B signals. Tracking controi
The FM signal is amplified by about 20dB by signals À and C are input to the voltage-follower
the negative feedback amp. Transistors Q1 and Q2 type OP amp 71, and extracted as TRKG A and
form a cascade connected amplifier stage, and Q3 ТЕКС B output signals.
HEAD AMP.
В,
| + + Amp a - FOCSB
| DETECTOR |
4—] amp = = 0 FOCS A
Amp E Emiter —O RF OUT
follower
|
Negative feedback amplifier
Voltage-
follower Е ТАКС А
Vottage- =
follower P тако в
ЯРАМ BLOCK DIAGRAM
Fig. 1
RFAM block diagram

5.2 VDEM (VSOP)
With the UA5002 DOC processor and the
UA5001 video processor IC, the VDEM section
which occupy 1/3 of the VSOP board handles
video signa! demodulation and 1H delay video sig-
nal demodulation plus video signal switching when
dropouts occur. А block diagram of the VDEM
section is shown in Fig. 2.
The video and audio FM signals applied to the
VSOP board from the RFAM board are applied to
the RF correction circuit (Q201- Q203). Since
the electrical conversion frequency response in the
optical system is lower at the inner circumference
than аї the outer circumference, there is a certain
amount of gain compensation up to frame number
#13500 (approx), especially in the high frequency
region where the effect is much greater.
Following compensation of the gain difference
between inner and outer circumferences, the FM
signal is passed to the AUDX board and to the
UA5002 DOS RFIN terminals. This signal is also
passed through a bandpass filter for video FM sig-
nals, and then through an audio FM signal trap in
order to extract the video FM signal components.
After being applied to pin 24 of ПА5001, this FM
signal is amplified by Q208 and Q220, detected
(level detection), and then applied as the RF sensor
output to UM3002 in the SPDL section. Further-
more, the video FM signal delayed by an interval of
1H by the 1H delay line is applied to pin 7 of the
UA5002 DOC processor.
9201, 202,203 Г — ] огов,агго
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