Sony CDP-C90ES User manual

CDP-CS0ES/C910
SERVICE
MANUAL
US
Model
Canadian Model
CDP-C90ES
US Model
Canadian Model
AEP Model
E Model
Australian Model
CDP-C910
Photo : CDP-C9O0ES
Mode! Name Using Similar Mechanism | New Mechanism
CD Mechanism Name CDM10-5BD7
| Base Unit Name BU-5BD7
SPECIFICATIONS
Compact
Disc
Player
Dimensions
(w/h/d)
Frequency
response
2
Hz-
20
kHz
(+0.3
dB)
CDP-C910
mode!
:Approx.
430
X
125
&
385mm
Signal
to
noise
ratio
More
than
110
dB
(17
X
5
X
15'/«
inches)
Dynamic
range
More
than
100
dB
CDP-C90ES
model
:Approx.
470
X
125
X385mm
Harmonic
distortion
Less
than
0.0030%
(188/gx
5
X
15'/4
inches)
Channel
separation
More
than
105
dB
Including
projecting
parts
and
controis
Weight
Outputs CDP-C910 modei :A
Approx. 6.3kg(13lbs 150z),net
FI
I
$
eee fed eecanics ae kiloohms) CDP-C90ES mode! : Approx. 7.4kg(16Ibs 6 0z)net
10 kiloohms Suppli .
LINE OUT (VARIABLE) Output level max 2 V Euan
(phono
jacks)
(at
50
kiloohms)
onnecting
cord
Load impedance over (2 phono plugs ++ 2 phono plugs) (1)
10 kiloohms Disc magazine (1)
DIGITAL
OUTPUT
—-
Wave
length
660
nm
on
ee
(OPTICAL)
(optical
Output
level
—
18
dBm
iz
A
pattenes
(2)
Qutput connector) 2
HEADPHONES Output level max. 15 mW Design and specifications subject to change without
(stereo phone jack) Load impedance 32 ohms nonee:
General
Power requirements
US,Canadian model :ACi20V, 60Hz
AEP model :220-230V AC , 50/60Hz
E model :110-120V or 220-240V AC
adjustable 50/60Hz
Australian model :AC240V, 50Hz/60Hz
Power consumption
CDP-C910(US, Australian) model,
CDP-C90ES(US, Canadian) model :18W
CDP-C910(Canadian, AEP, E,
Australian) model :15W
COMPACT DISK PLAYER

CDP-C90ES/C910
SAFETY CHECK-OUT
After correcting the original service problem,
perform the following safety check before releasing
the set to the customer:
Check the antenna terminals, metal trim, ‘“‘metallized”’
knobs, screws, and all other exposed metal parts for
AC leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not exceed 0.5 mA (500 microampers). Leakage
current can be measured by any one of three
methods.
1. A commercial leakage tester, such as the
Simpson 229 or RCA WT-540A. Follow the
manufacturers’ instructions to use these instru-
ments.
2. A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
this job.
3. Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meter, The “limit”? indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are
suitable. (See Fig. A)
To Exposed Metal
Parts on Set
|
AC
0.18uF 1.5k2 voltmeter
; (0.75 V)
+ Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
TABLE OF CONTENTS
Section Title Page
SECTION 1. GENERAL: * - ss et et eet eee
SECTION 2. SWITCH AND SENSOR OPERATIONS: - = -
SECTION 3. MECHANICAL ADJUSTMENTS ----- = >
SECTION 4. ELECTRICAL BLOCK CHECKING: -- =~ =
SECTION 5. DIAGRAMS
5-1. Printed Wiring Boards: = + +++ + +>
5-2. Schematic Diagram — MAIN Section
5-3. Schematic Diagram — BD Section — ° - 18
5-4. WAVEFORMS: - - + + 2 se ee ee ee
SECTION 6. EXPLODED VIEWS
6-1. Front Pane! Assembly Section -«* + =>
6-2. Chassis Assembly Section -*-* +: "+.
6-3. MD Section-] *- + sete ee ee tes
6-4. MD Section-2 - + + ++ eee ee eee
6-5. Optical Pick-Up Block Section: * - = =
SECTION 7. ELECTRICAL PARTS LIST: - +++ +=: -
MODEL IDENTIFICATION
(Specification
Label)
CDP-C910
CDP-C90ES
SONY:
COMPACT DISK PLAYER
MMMM bbb
MODEL NO. KY
US, Canadian model: AC: I|20V 60Hz 15W
AEP model: AC: 220-230V~50/60Hz
E model: AC: 110-120V, 220-230V~50/60Hz 15W
Australian model: AC: 240V~50/60Hz
ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE MARQUE #\
SUR LES DIAGRAMMES SCHEMATIQUES ET LA LISTE
DES PIECES SONT CRITIQUES POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIECES SONY DONT LES
NUMEROS SONT DONNES DANS CE MANUEL 0U
DANS LES SUPPLEMENTS PUBLIES PAR SONY.
*13
pectin,

This section is extracted
from instruction manual.
| MeYor-1ilela Mey Mmerelalige) is
SECTION 1
GENERAL
CDP-C90ES/C910
Front Panel
[21 }{20]
Refer to the pages indicated in @ for details.
POWER switch ©
Magazine slot @
TIME/MEMO button @
[4 |REPEAT button ®
CHECK (program check) button ®
CLEAR (program clear) button ®
Display window @
FILE button @
ERASE button @
MUSIC SCAN button @
EDIT/TIME FADE button @ @
Track buttons @
DISC selectors @
DISC SKIP button @
>10 (over 10) button @
el+lele |e]
(als/s)s/2|s/ele (No)
Remote Commander .
[16 PHONE LEVEL/LINE OUT LEVEL control @ @
[17 PLAY MODE buttons
CONTINUE button ©
SHUFFLE button ®
PROGRAM button ®
BANK button @
[18 HEADPHONES jack
[19 LEVEL FILE button @
20: P(peak).SEARCH button ®
(21: FADER button ®
(22. <4 BP (manual search) buttons @
[23.4 PI (AMS*) buttons @
[24M (stop) button @
[25 Ml (pause) button/indicator @
[26:B (play) button/indicator @
[27\# EJECT button @
[28:;Remote sensor
[29; TIMER switch @
8)
* AMS is the abbreviation of Automatic Music Sensor.
Refer to the pages indicated in @ for details.
MUSIC SCAN button @
DISC SKIP button @
Track buttons ®
CLEAR (program clear) button ®
MEMO INPUT button @
FILE button @
TIME button @
FADER button @
REPEAT button ®
[10'LINE OUT LEVEL buttons @ @
[11] LEVEL FILE button @
[12] << > (manual! search) buttons M
[13 |<< BPI (AMS) buttons @
leleefel ee)
|
[14] (stop) button ©
[15|B> (play) button ©
(16]IM (pause) button @
17] CHECK (program check) button @
18] >20 (over 20) button @
19|DISC selectors ©
20}PLAY MODE buttons
CONTINUE button ©
SHUFFLE button @
PROGRAM button ®
BANK button @
Buttons with yellow letters (A, 8, C, ...... ) are for writing a
disc memo (page 22).

CDP-C90ES/C910
SECTION
2
SWITCH
AND
SENSOR
OPERATIONS
Q601
HS SENSOR
Detects
number
of
to
plate
gear
rotations
to
find
out
S602
elevator
position.
PST
SWITCH
Detects
is
pack
is
in
or
not.
DeoT
}
DISC
DET
SENSOR
D607
Detects
if
disc
is
S607
EJECT
SWITCH.
;
in
or
not.
Detects
completion
of
eject.
S604
HOME
Detects
is
elevator
is
at
home
Position
or
not.
S603
LOT
Detects
completion
of
linear
Slide
lever
operation.
M602
SAVE/LOAD
MOTOR
Perform
disc
load
save.
S605
LOAD IN DET
Detects is disc is
in or not.
M601
PACK
EJECT
/LEVER
OUT
MOTOR
Ejects
pack
moves
linear
slide
lever
to
insert
disc
properly
into
pack.
603
ELEVATOR
UP/DOWN
MOTOR
DISC
DET
SENSOR
{
Q602
Moves
elevator
up
and
down.
Detects
if
disc
is
in
or
not.
Q603

SECTION 3
MECHANICAL ADJUSTMENTS
LEVELING OF ELEVATOR ASSY
Adjusting Method:
1. Loosen a setscrew on the gear ASSY to free
the screw ASSY on both sides.
screw ASSY
Cm
gear ASSY
g
Shift the gear ASSY a little to screw ASSY
disengage from the screw ASSY.
2 Rotating the screw ASSY on both side in
arrow direction, raise the elevator ASSY
while keeping it level until the elevator
rise-up portion touches the chassis fin,
then th Aten a setscrews on the year ASSY.
(See “Leveling of Elevator ASSY”.)
Note: Do not further rotate the screw ASSY after touch.
chassis fin
Raise the
elevator ASSY.
elevator AS —— :
<J Note: Do not allow grease in the screw
ASSY to stick to the belt of gear
ASSY.

ADJUSTMENT OF ELEVATOR ASSY HEIGHT
Adjusting Method:
1. Rotating the belt of gear ASSY in the arrow
direction, raise the elevator ASSY until it
touches the chassis.
chassis
elevator ASSY
belt
gear(S) screw ASSY gear ASSY screw ASSY
2 Assuming that the marked tooth on gear(S) is
the first tooth, align the fourth tooth with
chassis rise-up portion, and fix.
rise-up portion fourth tooth
first tooth
gear(S)

SECTION 4
ELECTRICAL BLOCK CHECKING
Note:
i. CD Block basically constructed to operate with-
out adjustment. Therefore, check each item in
order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise
indicated.
3. Use the oscilloscope with more than 10MQ im-
pedance.
4. Clean an object lens by an applicator with neutral
detergent when the signal level is low than
specified value with the following checks.
S Curve Check
oscilloscope
BD board
am |O
TP(EFO)
TP(VC) Om—L0 -
Precedure:
1. Connect osilloscope to test point TP(FEQO) on
BD board.
2. Connect between test point TP(FES) and TP
(VC) by lead wire.
3. Turned Poswer switch on and actuate the focus
serch.(actuate the focus serch when disc table is
moving in and out.)
4. Check the oscilloscope waveform(S curve) is
symmetrical between A and B. And confirm peak
to peak level within 3+1Vp-p.
S curve waveform symmetry
within 3 1Vp-p
5. After check, remove the lead wire connected in
step 2.
Note : - Try to mesure several times to make sure
that the ratio of A:B or B:A is more than
10:7.
* Take sweep time as long as possible and light
up the brightness to obtain best waveform.
RF Level Check
oscilloscope
BD board
aN
TP(RF ) aaa x +
TP(VC) O=i——O -
Procedure:
1. Connect oscilloscope to test point TP(RF) on
BD board.
. Turn Power switch on.
. Put dise(YEDS-18) in and playback.
. Confirm that oscilloscope waveform is clear and
check RF signal level is correct or not.
Note:
Clear RF signal waveform means that the shape "©
can be clearly distinguished at the center of the wave-
form.
dm Oo IN
”
VOLT/DIV : 200mV
RF signal waveform
TIME /DIV : S00nS
AX A}
ARR
AN
WA
level: 1.2 +02 yp.
~0.4 VPP
WN)
\ MN
ss WM |
E-F Balance Check
oscilloscope
BD board
sce
TP(EFO)
TP(VC) ow—lo -
Procedure:
1. Connect test point TP(ADJ) to ground and TP
(TES) to TP(VC) with lead wire.
2. Connect oscilloscope to test point TP(TEO) on
BD board.
Traverse oscilloscope
symmetry
level : 2-1Vp-p
3. Turn Power switch on.
. Put disc(YEDS-18) in and playback.
5. Confirm that the osilloscope waveform is sym-
metrical on th top and bottm in relation to 1V,
and check this level.
6. Remove the lead wire connected in step 1.
—

RF PLL Free-run Frequency Check Adjustment Locations:
(BD board)
Procedure:
1. Connect frequency counter to test point(PCK)
with lead wire.
— conductor side —
frequency counter
-CNIOZ-
Main board vane
TP(PCK) Ont -O+ 30 16 x" done
ie ioe fF *
: a TEOS OVE
t 15 og 8
. RVIOZ” A fES.
2. Turn Power switch on. Se FOCUS Gain? OFEQ. ©
3. Confirm that reading on frequency counter is TES ee 8 ot
4.3218MHz. av Qo”
SP RVIOL
Focus/Tracking
Gain
©
TRANG
ox
This gain has a margin, so even if it is slightly off.
There is no problem.
Therefore, do not perform, this adjustment.
Please note that it should be fixed to mechanical cen-
ter position when you moved and do not know
original position.
(Main board)
— component side —
1COS]
+ a a“ |
©) ca01 C301 aoe |
is J (PCK)
C)caoe ee (ADJ) J

SECTION 5
DIAGRAMS — UB Teg BO Pe
5-1. PRINTED WIRING BOARDS @ Refer to page 20,21 for Circuit Boards Location and Semiconductor Lead Layouts.
@ Semiconductor Location i “7 ‘aa _ SS Se =
| ae B = a: so i: ae oe | ee 6 ph ciacaar al emeassinin i - . aoe Sota fac lle cee cereet Be ie ee ns |
Ref. No. Location, Ref. No, Location ;
4 [RELAY BOARD ]
D301 B-15 | 1C411.. >| £-24 A
D302 C-20 | 10431 A-18 >}
D303 E-12 | icsot ee | |
D351 G-9 (C502 D=17 ee |
D401 eE=22°) 1C503° °° PE -T9
D402 E-22 | 1C504 E-19
D403 E-22 | 1C505 F-19 | B —
0404 Fr22 | (C551 D-14 | CaO S MODEL
D411 t.E “24 | 1C552 — A-20 - ——
D412 | E-24 | 10701 1-17
ae a : pe a C | . [HS SENSOR BOARD] i er a
D505 | D-18 i Q1O1(MAIN)) B-19 7 :
D506 E-18- QLOt(BDY | F-27
D507 | £-18 | a1o2 B-19 L ee
p514 | E-18- at103 B-19 or A.
f aa H BS LOAD MOTOR’
D515 | F-18 | Q104 B-20 [aot Inss0-375
D601 | G-4 | Q2ot B-19 (D
D602 G-6 Q202 B-19 tt
D701 | H-16 | Q203 B-19 Lf
D702 H-16 | Q204 C-20 | | [82 SWITCH BOARD] [$3 SWITCH BOARD] |
D703 | H-16 | Q301 B-20 bya
Sid ieee Meas : [S! SWITCH BOARD] :
D705 H-16 | Q303 C-12 tear | de
D706 -16 | Q401 E=21 | | ; | nee
D707 1-16 | aQ402 ag ore! i |
D711 }-20 | Q411 F-24 |
D712 -20 | Q412 F-24° Ane } a5
Bras 1 F-20 |. 413 F-24 FI
D714 -20 | Q414 E-24 i
D715 -20 | Q431 eB azo 7, On ome a.
D716 -20 | Q501 F-18 [| M60: (LED BOARD)
D721 J-21 | Q502 pete M4 @)
D722 J-20 | Q503 F-18 G
D801 B-9 Q504 — F-18 ms
D802 A-3 Q505 F-18 |
D803 A-9 Q506 F-18 [4
Q601 C-4 |
Clot | €-27 |. a602 A-5 ie
C102 | D-27 | Q603 A-3 iH jee ene
C301 B-14 | Q701 J-18 | | ee
1C302 B-16 Q702 J-19 i FUTTO! FLUORESCENT INDICATOR TUBE
C303 B-17 | Q703 J-23 i
C304 | B-18 | Q8o2 B-§ ERGs ene aes 7 sha
0 0 SHUFFLE ci PROGRAM
eee ieee : ieee
_ |
| “ ipises 1 ol DOC ©) (
eee } J
Racor nse from the component side. | | PEAK (oe (om ee
. rou ole. i 1 l
bilbe the side which is seen, | | wW oe Ml 7 w iN Jj
Pattern
of
the
rear
side.
J
thes
JN
8
|
N
Ww
Ww.
JN.
CND: Canadian | Le i = |
| i 126 bases 36 86 7G 66
AUS: Australian ‘no OD CODD
€910:CDP-C310
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