Sony Disman D-25 User manual

MICROFILM
SERVICE MANUAL
Note: Use only the supplied AC power adaptor or the recommended car
battery cord manufactured by Sony. Polarity of the plugs of other
manufacturers may be different.
CAUTION
CD section
System
Laser diode properties
Error correction
D-A conversion
Frequency response
Dynamic range
Signal-to-noise ratio
Wow and flutter
Outputs (at 9V input level)
* Measured by EIAJ CP-307
*Measured by ElAJ CP-307
General
Power requirements
Power consumption
Dimension
Weight
Supplied accessories
oo
@ Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.
SPECIFICATIONS
Compact disc digital audio system
Material: GaAlAs
Wavelength: 780nm
Emission duration: Continuous
Laser output: Less than 44.6 uW
*This output is the value measured at a distance of about
200mm from the objective lens surface on the Optical
Pick-up Block.
Sony Super Strategy Cross Interleave Reed Solomon Code
16-bit linear, 4fs digital filter
20-20,000 Hz +1dB*
More than 90dB*
More than 85dB
Below measurable limit *
Line output (Stereo minijack)
Output level 0.7V rms at 50kilohms
Load impedance over 10kilonms
Headphones (stereo minijack)
9mW+9mMW at 320hms
Supplied rechargeable battery pack BP-2 or BP-100 (optional)
DC IN 9V jack accepts:
Supplied AC power adaptor
Sony CPM-100P car mount plate (optional) or Sony
DCC-120A car battery cord (optional) for use on 12V car
battery
1.9W DC
Approx. 125.8x20.8 134.6 mm (5*?/4,.*5%4in.) (w/hid)
not incl. inclined part (depth), projecting parts and controls
Approx. 127.3*24.1 x 136.2 mm (51444, x53, in.) (w/h/d)
incl. projecting parts and controls
Approx. 380g (13.502), not incl. rechargeable battery
Approx. 460g (1Ib) incl. rechargeable battery
AC power adaptor (1)
Rechargeable battery pack (1)
Carrying case (1)
Connecting cord (1) (stereo miniplug «> two phono plugs)
US Mode!
Canadian Model
D-25
AEP Mode!
UK Mode!
E Mode!
Australian Mode!
D-250
DIStMAN
COMPACT DISC COMPACT PLAYER
SONY.

D-25/250 |
TABLE OF CONTENTS
Section Title Page Section Title Page
SPECINOCAMONY Y. Se twee wat eae Oe eee 1 o: ELECTRICAL ADJUSTMENTS ....... 6
ie GENERAL 4. DIAGRAMS
Location and Function of Controls ......<.. 2 ale. CWAVEIOIMG 046% 9 Soke A ee 12
4-2. Semiconductor Lead Layouts ......... is
2. SERVICING NOTES 4-3. Printed Wiring Boards ....<.<5¢s0<%5 14
Notes on Handling the Optical Pick-up Block... 3 at. Schematic pieet OEE a ene ete ROG 7
‘Flexible Circuit Board Repairing 2... .<.<:s2. 3 4-5. IC Block Diagram ........-...-.-.- 20
Notes on Chip Component Replacement ...... 8)
Before Replacing the Optical Block ......... 3 5. EXPLODED VIEWS............... 22
Notes on Laser Diode Emission Check ....... 4
Laser Diode Check Procedure . 2222-522 2522 4 6. ELECTRICAL PARTS LIST......... 26
Service. Mode (service program) ............ 5
SECTION 1
GENERAL
Meror- | {(ola Mr: lalemm all laleqice)a Mme);
Controls
HOLD switch
Slide this switch to the right so that Its
orange mark appears. This locks the
buttons to prevent
them from being accidentally
depressed.
PHONES (headphones)
jack (stereo minijack)
Display window
Normally the track number and the elapsed
playing time are shown,
When the power is supplied through the
DC IN 9V jack, the window will light up.
VOLUME control
(for headphones listening)
ENTER/REMAIN button EY MODE (AMS*/
SEARCH/INDEX)
button
PLAY MODE button
11 (play/pause) button
w STOP button
LINE OUT jack
(stereo minijack)
DC IN 9V (external power input) jack
<q | (AMS/SEARCH!
INDEX) buttons
OPEN button
REMOTE control jack
Connect the optional remote control kit.
*
AMS
is
the
abbreviation
of
Automatic
Music
Sensor.

| D-25/250
SECTION 2
SERVICING NOTES
NOTES
ON
HANDLING
THE
OPTICAL
PICK-
Before
Replacing
the
Optical
Block
UP
BLOCK
Please
be
sure
to
check
thoroughly
the
parameters
as par the “Optical Block Checking Procedures”
ihe
dastr
ieee
a
tie
opieal
pick-up)
black
may
(Part
No.:
9-960-027-11)
issued
separately
before
suffer
electrostatic
breakdown
because
of
the
poten-
replacing
the
optical
block.
tial
difference
Eoneiied
by
the
charged
electrostatic
Note
and
specifications
required
to
check
are
given
load,
etc.
on
clothing
and
the
human
body.
belaw
During
repair,
pay
attention
to
electrostatic
break-
down
and
also
use
the
procedure
in
the
printed
@
FOK
output:
IC501
(9)
pin
MISETEr
WMHS
TCG
CH
aE
neHepaye
Parks:
When
checking
FOK,
remove
the
lead
wire
to
disc
motor and unsolder and open IC801 24) pin.
@ S carve P-to-P value: 2.95 Vp-p
Adjusted part for focus gain adjustment: RV505
Flexible
Circuit
Board
Repairing
RF
signal
P-to-P
value:
0.75
—
1.4
Vp-p
1. Keep the temperature of the soldering iron at Traverse signal P-to-P value: 1.8 Vp-p
270 210 ¢ during repairing.
The grating holder can not repair.
2. Do not touch the soldering iron more than 4
seconds or 3 times on the same conductor of
the circuit board.
Adjusted part for tracking gain adjustment: RV501
3. Do not apply force on the conductor when
soldering or unsoldering.
Notes on chip component replacement
@ Never reuse a disconnected chip component.
@ Notice that the minus side of a tantalum capacitor
may be damaged by heat.
SAFETY-RELATED COMPONENT WARNING!! ATTENTION AU COMPOSANT AYANT RAPPORT
COMPONENTS IDENTIFIED BY MARK /\ OR DOTTED Ae aoe eE
LINE WITH MARK /\ ON THE SCHEMATIC DIAGRAMS LES COMPOSANTS IDENTIFIES PAR UNE MARQUE /\
AND IN THE PARTS LIST ARE CRITICAL TO SAFE SUR LES DIAGRAMMES SCHEMATIQUES ET LA LISTE
OPERATION. REPLACE THESE COMPONENTS WITH DES PIECES SONT CRITIQUES POUR LA SECURITE
SONY PARTS WHOSE PART NUMBERS APPEAR AS DE FONCTIONNEMENT. NE REMPLACER CES COM.
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- POSANTS QUE PAR DES PIECES SONY DONT LES
LISHED BY SONY. NUMEROS SONT DONNES DANS CE MANUEL OU
DANS LES SUPPLEMENTS PUBLIES PAR SONY.

D-25/250 |
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to
be focused on the disc reflective surface by the objec-
tive lens in the optical pick-up block. Therefore,
when checking the laser diode emission, observe,
from more than 30 cm away from the objective lens.
Laser Diode Check Procedure
The laser diode on this set will not emit unless the
top panel is closed and $901 (leaf SW type) is turned
on. The laser diode will always emit even if focus
search is not performed in service mode.
The laser diode is checked using the current value
which flows to the laser diode inside the UPF.
Procedure 1 (service mode or normal operation)
Check the laser diode emission with the eye.
1. Open upper panel.
2. $901 on as Fig. 1.
(In service mode, this operation is not neces-
sary.)
3. Pressthe PI key.
(In service mode, this operation is not neces-
sary.)
4. Observe the objective lens and confirm that
the laser diode is emitting light. At this time,
the laser diode goes on about 10 seconds due
to focus serarch. If it does not, APC circuit
or UPF is defective.
Fig. 1 Turning S907 on
Procedrue 2 (service mode or normal operation)
Check by the curent with flows in the laser diode.
1. Close the top panel.
2. Remove the main board and read the current
value on the label affixed to the UPF.
(Label on UPF)
KSS-165A
JAPAN
$123
current value
This means 49.9 mA.
The current value varies with the set.
3. Connect a VOM as shown in Fig. 2.
4. Press the >§ key.
5. Calculate the current by the VOM reading.
VOM reading (V) + 10 = current (A)
ex. VOM reading = 0.49 V
0.49 = 10 = 0.049 (A) = 49 (mA)
6. Confirm that the ammeter reading is within
the range given below.
value on Jabel*?, mA (25-0)
variation relative to temperature:
0.4 mA/°C
(Current increases when temperature rises
and decreases when it drops.)
If the value is more than the range given,
APC circuit has been defective or the laser
diode has deteriorated. If it is less, APC
circuit or UPF is defective.
— servo board —
Fig. 2 VOM Connection

SERVICE MODE (service program)
This set has built-in service program in the micro-
computer as usual sets.
The operation method of service program is ex-
plained below.
[ ]: Main operation in service mode
for details, refer to step 2.
@ (STOP)
[servo all off]
PER (PLAY/PAUSE)
ie OCUS on and CLV-S |
mode (RUN-UP mode) on
PPI (FF)
Peds goes to ou ei
circum ference,
KEY-MODE
HOLD
l4(FR)
tracking
servo
gi
OFF
+ON
[
UPF
goes
to
inside)
sled
servo
on
REMAIN circumference.
[display stop]
Be sure to set HOLD switch OFF.
If not key inputs can not be operated.
Fig. 3 Key Positions
Step 1 (Service Mode setting method)
1. Turn the HOLD switch OFF with the external
power supply not plugged in (no power applied
to set) and press the PEE key.
2. Solder jumper TEST point.
(IC801 pin (9) (BAT-E) pin is grounded.
3. Plugin external power supply.
This puts the set into service mode.
— main board —
Step 2 (Service Mode operation)
1. When service mode is set, the display will
change
6
times,
and
those
6
changes
will
be
repeated over and over.
With this the LCD display should be present
in
service
mode,
Even
if
LCD
does
not
display,
other operations will be performed.
2. When PP| or Kd key is pressed, the UPF moves
to
the
inside
or
outside
circumference,
Tracking
servo and sled servo go off when this is done, so
press
KEY-MODE
to
turn
on
the
tracking
servo
if necessary,
3.
When
REMAIN
is
pressed,
the
display
stops.
When
REMAIN
is
released,
the
display
con-
tinues
to
change.
This
allows
check
of
each
segment.
4. When Pill key is pressed, CLV-S (pull-in mode)
starts while performing focus search. When
there
is
no
disc
installed,
focus
search
is
re-
peated several times while disc motor is rotating.
5. When KEY-MODE is pressed, tracking servo,
sled servo and CLV-A (servo during PLAY) go
ON.
6.
When
4
and
5S
are
performed,
the
disc
begins
to
play.
At
this
time,
the
top
panel
should
be
closed
and
S901
are
to
be
ON.
7. All servo (focus, tracking, sled and spindle) go
off when M@ key is pressed. But disc motor
continues rotating for a while by inartia.
Step 3 (Service Mode release)
1. First be sure to unplug the external power
supply, then remove the TEST point solder
jumper.
2. The set will now operated normally.
TEST
Solder jumper for service mode.
G. fter checking or adjusting in service ueee)
be sure to remove this solder jumper.
Fig. 4 TEST Point Position
—5—
SECTION 3
ELECTRICAL ADJUSTMENTS
Notes on Adjustment
1. Perform adjustments except for RECHARGEA-
BLE VOLTAGE ADJUSTMENT and BATTERY
DISPLAY ADJUSTMENT in service mode. Be
sure to release service mode after completing
adjustment.
(Refer to “Service Mode (service program)’ on
page 5.)
2. Perform adjustments in the order given.
3. Use YEDS-18 disc (part No.: 3-702-101-01) unless
otherwise indicated.
4. Power supply voltage: DC 9 V
HOLD switch: OFF
PREPARATION
Put the set into service mode (see page 5) and per-
form the following checks. Repair if there are any
abnormalities.
@ Sled Motor Check
1. Press the OPEN button and open the top panel.
2, Press the >P| , Ke keys and make sure that the
UPF moves smoothly, without catching, from the
inmost > outmost > inmost circumference.
pb : UPF moves outward
Kd: UPF moves inward
@ Focus Search Check
1. Press the OPEN button and open the top panel,
2. Press the PHB key.
continuously.)
3. Observe the UPF objective lens and check that it
moves smoothly up and down with no catching or
noises.
4. Press the @ key.
Check that focus search operation stops. If it does
not stop, press the M key again longer than before.
But disc motor continues rotating for a while by
inartia.
(Focus search is performed
VC (1/2 Vec) Connecting Point
FOCUS BIAS ADJUSTMENT
TRACKING BALANCE ADJUSTMENT
When the adjustments above are performed, connect
the () side of oscilloscope to the point below.
oscilloscope
to adjustment
point
{SERVO BOARD]

Battery Display Adjustment
Adjustment Procedure: vom
(de range)
main board
+
TP (VREF) O——z;——-O
1€802 (i) O=--7
. Apply de +3.5 V to terminals for bult-in battery
(BP-2).
. Insert the disc (YEDS-18) and put the set into
play mode.
. Adjust RV801 so that main board IC802 a)
voltage and TP (VREF) voltage are equal.
. If IC802 (11) voltage is heigher than TP (VREF)
voltage when turning the RV80O1 fully counter-
clockwise, short the jumper point (A) as shown
below and adjust RV801.
Adjustment Location: main board
battery
terminals
TP
1c802@
+6 V Adjustment
Adjustment Procedure: vom
(de range)
main board | |
+
TP (+6 eee
. Put the set into service mode (see page 5).
. Connect the VOM to main board TP (+6 V).
. Adjust RV401 for +6+0.1 V reading on the
VOM.
. After adjustment, release service mode (see page
5):
Adjustment Location: main board
TP(+6V)
+3.4 V Adjustment
Adjustment Procedure: nee )
main board | |
+
:
1, Put the set into service mode (see page 5).
TP (+3.4 V)
2. Connect the VOM to main board test point TP
(+3.4 V).
3. Adjust the pattern connecting ( @ or ©) to
obtain 3.4 to 3.55 V reading on the VOM.
reading
Te [|e |
oe ee
Xx
O: short X: open
4. After adjustment, release service mode (see page
5)
Adjustment Location: main board
Rechargeable Voltage Adjustment
5 : VOM
Adjustment Procedure: idcrange)
main board | |
+
TP (R. aoe:
1. Connect the VOM to main board test point TP
(R.V).
2. Apply DC 9V with requrated dc power supply
from external power jack CN401.
3. Adjust RV402 for 7.05 — 7.5 V reading on the
VOM.
Note: Measure after the VOM reading becomes stable.
Adjustment Location: main board

PLL Free Run Frequency Check and Adjustment
Check/Adjustment Procedure:
6.
frequency counter
servo board
= Boao
(PLCK) O_O
. Disconnect the jumper point @) (EFM) in the
diagram below.
. Connect a frequency counter to servo board test
point TP (PLCK).
. Put the set into service mode (see page 5).
. Check that the frequency counter reading is
4.3218 +0.01 MHz. If not, adjust RV504 so that
it is 4.3218 0.01 MHz.
. After adjustment, release service mode (see page
5):
Short the jumper point shorted in step 1.
Check/Adjustment Location: servo board
TP (PLCK) RV504
EFM solder jumper point
Disconnect for checking and'
[eductment Short after
checking and adjustment.
: 7" : EFM solder
——_ REMC ; jumper point
[Se : as
°
Si + aa Bisal*
Tracking Balance Adjustment
Conditions:
The set should be placed either horizontally.
oscilloscope
(DC range)
servo board e
TP
ec cemenmaae : +
VC (1/2 Vec) Oo____O —
(See page 6.)
. Connect the oscilloscope to servo board TP (TE).
Adjustment Procedure:
. Put the set into service mode (see page 5).
. Press the PPI and 44 keys to move the UPF to
the center.
. Insert the disc (YEDS-18) and close the top panel.
. Press the PBB key.
It will go from focus search to focus on, and
CLV pull-in mode state. Tracking and sled are
OFF.
. Adjust RV502 so that the oscilloscope waveform
is symmetrical on the top and bottom in relation
todV.
Note: Take sweep time as long.as possible to obtain best
waveform.
A A
1.3—2.3 Vp-p2V
oy: 8
A=B A=8
. Unplug the external power supply to stop spindle
motor from rotating.
. After adjustment, release service mode (see page
Si):
Adjustment Location: servo board
na ea
red
zt = ae
i
(esa) ,
Focus Bias Adjustment
Conditions:
The set should be placed either horizontally.
Adjustment
Procedure:
oscilloscope
(DC rangei
servo board C)
TP 2kQ2
(RF) O——w—_O +
VC (1/2 Vec) O_O --
(See page 6.)
oscilloscope
(DC range)
Olea
1C502 @8) (FE) oF
VC (1/2 Vec) Oo —
(See page 6.)
servo board
Pa ree
. Put the set into service mode (see page 5).
. Connect the oscilloscope to servo board test point
TP (RF).
. Press the PPI and KH keys to move the UPF to
the center. (Move the UPF to the music area on
the disc to enable easy visibility of the eye pat-
tern).
. Insert the disc (YEDS-18) and close the top panel.
. Press the P&B key.
It will go from focus search to focus on, and
[cu pull-in mode state. Tracking and sled re)
OFF.
. Press the KEY-MODE button. (Tracking and sled
go ON.)
. Adjust RV503 so that the oscilloscope waveform
eye pattern is good. A good eye pattern means
that the diamond shape (0) in the center of the
waveform can be clearly distinguished.
RF Signal Reference Waveform (eye pattern)
VOLT/DIV: 200 mV
TIME/DIV: 500nS
SRR
AXXKAKAAKAKAY | 25 e2%2 on y
Mh
WW
i
WHA
N
When observing the eye pattern, set the oscillo-
AX
scope for AC range and raise vertical sensitivity.
1
NY
O.1V
. Unplug the external power supply to stop spindle
motor from rotating and remove the disc.
. Remove the disc and connect the oscilloscope to
main board ICS02 @8) (FE).
. Adjust RV503 again refering to the table followed.
more than +50 mV | Not adjust again.
450. mV ~ +20 mV Adjust RV503 again for +50 mV
. reading on oscilloscope.
+20
mv
~
—20
mv
|
Adjust
RVS03
again
for
-20
mv
reading
on
oscilloscope.
less than —20 mV Not adjust again.
After adjustment, release service mode (see page
5):
Adjustment Location: servo board

| Reference |
Focus/Tracking Gain Adjustment
A frequency responce analyzer or CD jig is necessary
in order to perform this adjustment exactly.
However, this gain has a margin, so even if it is slight-
ly off, there is no problem. Therefore, do not per-
from this adjustment.
Focus/tracking gain determines the pick-up followup
(vertical and horizontal) relative to mechanical noise
and metchnical shock when the 2-axis device operate.
However, as these reciprocate, the adjustment is at
the point where both are satisfied.
@ When gain is high, the noise when the 2-axis device
operates increases.
@ When gain is low, it is more susceptible to mecha-
nical shock and skipping occurs more easily.
This adjustment is to be performed when replacing
the following parts:
@ optical pick-up block
@® RV505 (focus gain VR)
® RV501 (tracking gain VR)
Be careful not to move RV505 (focus gain volume)
and RVS50O1 (tracking gain volume) ordinarily.
jsut
me
2
th
[ On this set, it is very difficult to simplify this
adjustment. For those sets on which symptoms
such as ‘‘occasional skipping” are hard to discover,
or it is hard to tell if the set has been repaired,
use the CD jig and perform this adjustment. Refer
to the diagram below for connection of the CD jig.
The adjustment procedure is described in the sepa-
rate CD Jig Instruction Manual.
CD Jig Connecting Procedure:
Remove the solder jumpers at the TE and FE loca-
tions and connect the DC jig.
(Connect the points on both TE and FE located on
the side of IC501 to the output to the CD jig, and
points located on the side of volumes to the input
from the CD jig.)
— servo board —
Rv505 RVS5O!
Lenitg
lot
Hae
ae
RV505.
~RY5O1
4-1. WAVEFORMS
PLAY
ONY
OA
OXY)
WY
D
A)
\)
WAN
Say.
85nSEC
eh
1.4Vp-p
80nSEC
i
o fy
2.4Vp-p
80nSEC
o \V\
3.5Vp-p
Oy SEC
———*1
le a
3.4Vp-p
SECTION 4
DIAGRAMS
4.5uSEC
j++
REE
360nSEC
a
4.4Vp-p
150nSEC
}-}———+
os
UL
3.4Vp-p
lOOySEC
-———__+|
3.4Vp-p
1OOySEC
k—+
3.4Vp-p
42nSEC
+4
e ‘\/\,
2.6Vp-p
42nSEC
a" 3.4V
® '\/\,; @ P] nun]
|.8Vp-p = ay
5ySEC
e JUL
3.4Vp-p
lOuSEC
=
3.4Vp-p
4.5ySEC
“Ul
4.1Vp-p
210nSEC
TON
4Vp-p
210nSEC
++
@
4.4Vp-p
2.5ySEC
o /\\
DURING FOCUS
SEARCH
4.5mSEC

1 2 3 | 4 5 6 | 7 | 8 1 9 10 14 | 12 13 | 14 5 16 ig 18 19 20 24
=psi a . 2 a a
Note.on Schematic Dieyran: A D8I8 D8I7 D8I6 D8i9 D820 p82!
e
All
capacitors
are
in
wF
unless
otherwise
noted.
pF:
wuF
je
:
.
4-2. SEMICONDUCTOR LEAD LAYOUTS SOWV or less are not indicated except for electrolytics 4-3. PRINTED WIRING BOARD ap =a — oe ee ‘et 6&6 ¢ MW) Soa0 © ©
and
tantalums.
€
fee
=e"
ve
Ta
ek
slp
:
=
'
CXA12710 IMD2 e All resistors are in Q and 1/,W or less unless otherwise © Semiconductor Location
XN4609 specified. ; Der BATTER BP-100
%
:
indicates
tolerance.
Location
Ee
DESIENAION
RECHARGEABLE
PCS, === =
ame - B+ Line B-2 EBP-360 =|2254
BATTERY CASE
S40 00 60
with top panel closed.
@ Power voltage is dc 9 V and fed with regulated dc power
supply from external power voltage jack.
@ Voltage and waveforms are dc with respect to ground in
service mode.
G
D
D
D
E
D
D
D
t=
t-
H
G
Cc
(ee
B-
B
J-
J+
B
H
E
D
fe
Sb le wie
7 = — ae LL S| ; man lee sg, D802 of $902
/
if
Pratap
ay
OE
ond
125,
PS
LIMIT
SWITCH
eg Fe i : ‘ ¢ J (ovcuer REACHES
' raleci US| | fe) { : © ) = Da } oe NNER =e)
ue AN Roa 4 j es ‘ g I ~
(Ae eee D4
Fray ate.
ray
pit oe. 14.
=‘
ce
- aN it aa 4 Ss
6
5 e
4 e
d aS e [ _]: adjustment for repair.
A 2 1 e Voltages and waveforms and total current are measured
3
6
ae
1
4
Ma
3
no mark: stop
( ): play
e@ Voltages are taken with a VOM (input inpedance 1 MQ).
Voltage variations may be noted due to normal produc-
tion tolerances.
SLM125YW e@ Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
@ Signal path.
we -:cDd
e Switch
CXA12720-Z
KbAOOaH ankiboon
(CHASSIS)
o
an
foe)
-
OF
,
;
:
:
AL
_ms0l
SPINDLE
MOTOR
on
MOKRbGaGS
Cathode
>/il
PLAY MODE
REMAIN/ENTER
KEY MODE
Anode
MARKING SIDE VIEW
OMOOLTITOLIIITAOIITOOOOVCOT TITM~OOIIOOVA
RE RGGULOSOOESOS
o
J DPD DMO mxo ‘
NO OCOHbHHUNOHP HwHOHOPOUHOHLS
oO
CXP5086-0470
Q429 Q428
wore
PAOMMBWMWWDBIWOTT SO HHOHKOOOHEGESN
J5
Note: Note: J-2
The
components
identi-
Les
composants
identifiés
par
J-6
B50
q
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4-4. SCHEMATIC DIAGRAM
OPTICAL PICK-UP
BLOCK
KSS-165A (172)
@ See page 13 for notes.
BOARD (172)]
{C501
RF AMP, SIGNAL PROCESSOR,
MIDPOINT VOLTAGE REGULATOR
@ See page 12 for waveforms.
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1. 8k
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TOTAL
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BURY 33
DUR Ne FbUs search
26
OPTICAL PICK-UP
KSS-165A (2/2)
CURRENT
0
1
:210-280mA
CLV-S (CLV_RUN-UP
MODE)
1210-41004
J401
DC IN 9V
@-€-O
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0403, 421 '
SWITCH . el a =18
(POWER ON)
EBP-360
BATTERY CASE
DRY BATTERY
(IEC DESIGNATION R6)
SIZE "AA™
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