Pioneer PD-T303 User manual

WY) PIONEER’
The future of sound and vision.
Service
PALENUET
TWIN— TRAY COMPACT DISC PLAYER
PD-TS03
PD-T3SOs
PD-T3SO3s-S
PD-T40S3
PD—1T503,
PD—T303,
PD—T303—S
AND
PD-—T403
HAVE
SEVEN
VERSIONS
:
Applicable model
Type
Power
requirement
Export
destination
PD-T503|PD-T303|PO-T303| pp-t403
FS
To
facta
etme
=
Aa
207
Ceara
[Econ
entre
|
Ee
=a
ORDER NO.
ARP1714
AC110V, 120V-—127V, 220V, 240V Kingdom of Saudi Arabia and general
(switchable) market
AC110V, 120V—127V, 220V, 240V x
(switchable) U. S. Military
AC220V, 240V (switchable) * Australia
* Change the position of jumper of the transformer board assembly.
@This
manual
is
applicable
to
the
PD—1T503,/KU,
KC,
PD—T303,/KU,
KC
and
PD—T403,/KU,
KC
types.
@For the PD—T303,//KC and PD—T403//KU, KC types, refer to page 93.
@For the other types, refer to additional service manuals.
@The
PD—T303—S,/HEM
is
the
same
as
the
PD—T303,/HEM
except
for
the
color.
@ Ce manuel pour le service comprend les explications en francais de réglage.
@ Este manual de servicio trata del método ajuste escrito en espanol.
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER ELECTRONICS OF CANADA, INC.
PIONEER ELECTRONIC [EUROPE] N.V.
PIONEER ELECTRONICS AUSTRALIA PTY. LTD.
© PIONEER ELECTRONIC CORPORATION 1989

PD-T503, PD-T303, PD-T403
CONTENTS
1.
SAFETY
INFORMATION
11.
IC
DESCRIPTION
sesssesssesssecseestesteeseseseeeseessnen
6
2.
DISASSEMBLY
<crrcersectserteeeestesesesceseerersesenee
erereey)
3
12.
EXPLODED
VIEW
AND
3. REASSEMBY creer’ iaadepeseceacencpiuaelsientee baNeesbes dense 6 PARTS LIST FOR PD~T303
4. EXPLODED VIEWS AND PARTS LIST-+----- 8 13. PACKING FOR PD—T303--
B. PACKING covcccecceceeveeeeees a eeecevccceenees te veeeceveeeeerene +14 14. SCHEMATIC DIAGRAM FOR PD-T1T303°°°* 81
6. SCHEMATIC DIAGRAM «rr Stove vonssasesasvestee wee 15 15. P.C. BOARDS CONNECTION DIAGRAM
7. P.C. BOARDS CONNECTION DIAGRAM: 19 BO PH Tab wlcaieet eee eons 35
8. ELECTRICAL PARTS LIST +r mers: 28 16. ELECTRICAL PARTS LIST FOR PD—T303-- 91
9. ADJUSTMENTS srerseesseeee fosstinive Jechsaoeeevedienees 30 17. FOR PD-T303/KC AND
9. REGLAGEcrrceesenee padecbhoeek Sevsesceave Sodehsvateeistedstene 43 PD—T403,//KU, KC TYPES vrsesseseneenee Peres 193
9, AJUSTEvsresrsreesestsserssseetssnenssseseesseess seseeeeerseeee BG 18. PANEL FACILITIES: Sent PAA 2 eRe 94
10. MECHANISM DESCRIPTION ----- sopeiresnrestans 69 19. SPECIFICATIONS eerecsseseesesseserseaee sivugsevageveveubae 98
1.
SAFETY INFORMATION
1.SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service tech-
nician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
{water pipe, conduit, etc.) by connecting a leakage current
tester such as Simpson Model 229-2 or equivalent between
the earth ground and all exposed metal parts of the appli-
ance (input/output terminals, screwheads, metal overlays,
control shaft, etc.). Plug the AC line cord of the appliance
directly into a 120V AC 60Hz outlet and turn the AC
power switch on. Any current measured must not exceed
0.5mA.
Leakage
current
tester
Reading should
not be above
0.5mA
Test all
exposed meta!
surfaces
2-wire cord
Also test with
plug reversed Earth
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO-
TENTIAL SHOCK HAZARD AND MUST BE COR-
RECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are often
not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety charac-
teristics are identified in this Service Manual.
Electrical components having such features are identified
by marking with a 4 on the schematics and on the parts
list in this Service Manual.
The use of a substitute replacement component which
dose not have the same safety characteristics as the
PIONEER recommended replacement one, shown in the
parts list in this Service Manual, may create shock, fire,
or other hazards.
Product Safety is continuousiy under review and new
instructions are issued from time to time. For the latest
information, always consult the current PLONEER Service
Manual. A subscription to, or additional copies of, PIONEER
Service Manual may be obtained at a nominal charge from
(Using AC adapter ground
plug as required) PIONEER...
AC Leakage Test
(FOR EUROPEAN MODEL ONLY) — oe
rVAROITUS! ae WARNING!
LAITE SISALTAA LASERDIODIN, JOKA DEVICE INCLUDES LASER DIODE WHICH
LAHETTAA NAKYMATONTA, SILMILLE EMITS INVISIBLE INFRARED RADIA-
VAARALLISTA INF RAPUNASATEILYA TION WHICH IS DANGEROUS TO EYES.
LAITTEEN SISALLA ON LASERDIODIN LASER THERE 1S A WARNING SIGN ACCORDING LASER
LAHEISYYDESSA KUVAN 1, MUKAINEN Pike TO PICTURE 1 INSIDE THE DEVICE Picture 1
VAROITUSMERKK], Lasersateilyn
pAOVERSEL: ————H————_
USYNLIG LASERSTRALING VED ABNING
NAR SIKKERHEOSAFBRYDERE ER UDE
AF FUNKTION UNDGA UDSAETTELSE
[FOR STRALING.
rp VIKTIGT
APARATEN !NNEHALLER LASER AV HOGRE
KLASS AN 1. INGREPP | APPARATEN BOR
GORAS AV SPECIELLT UTBILDAD PERSONAL.
CLOSE TO THE LASER DIODE. Warning sign for
varoitusmerkki
laser radiation
IMPORTANT
PIONEER COMPACT DISC PLAYER APPARA-
TUS CONTAINS LASER OF HIGHER CLASS
THAN 1. SERVICING OPERATION OF THE AP-
PARATUS SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.

2. DISASSEMBLY
e REMOVAL OF CLAMPER HOLDER
1.
Stand
the
clamper
holder
up
and
push
the
claw
at ® section in Fig, 2—1 in the direction of
arrow to remove the clamper holder.
Clamper holder
Fig, 2-1
@ REMOVAL OF TRAY 1
% (Refer to page 34)
@ REMOVAL OF TRAY 2
*
Set
tray
2
to
the
OPEN
position
and
remove
it
in
accordance
with
“removal
of
tray
1”
in
page
34,
@ REMOVAL OF SERVO MECHANISM
ASSEMBLY
1.
Move
tray
1
to
the
complete—open
position
and
remove
it.
(Refer
to
page
34)
2.
Move
tray
2
to
the
CLOSE
position
and
manually
rotate
gear—pulley
and
move
tray
2
to
a
position
allowing
removal
of
the
servo
mechanism
assembly
screws,
3.
Remove
the
four
screws
holding
the
servo
mechanism
assembly,
flexible
cable,
and
connectors,
etc.,
as
required.
PD-T503
e REMOVAL OF TRANSFORMER BOARD
ASSEMBLY
1.
After
turning
OFF
the
power
switch,
be
sure
to
remove
the
plug
of
the
power
cord
from
the
wall
outlet.
2.
Rotate
the
gear—pulley
by
hand
so
that
to
displace
the
parts
of
tray
oye)
and
a
from
the
transformer
board
assembly.
3.
Remove
4
screws
E)
—
€4
,
binder,
and
the
CN801
parallel
jumper,
shown
in
Fig.
2-2.
Binder
Parallel
jumper
wire
Transformer
board
®
4,
After
confirming
that
the
power
is
OFF,
remove
the
POWER
SW
joint
from
the
POWER
SW.
(In
order
to
prevent
movement
of
the
POWER
SW
joint,
move
the
POWER
SW
to
the
back
together
with
the
board.)
5,
Slide
the
transformer
board
assembly
in
the
@®
direction
as
shown
in
Fig.
2—3,
and
stand
up
the
transformer
board
assembly
in
the
@
direction
while
making
sure
that
there
is
no
contact
with
the
servo
mechanism
assembly
and
POWER SW joint. /
00s
IIS
C)
Q
Fig. 2-3

PD-T503
e REMOVAL OF SW BOARD ASSEMBLY
(BOARD FOR U, S, AND L POSITION
DETECTION SW)
Note:
1.
Tray mechanism assembly must be removed
previously to remove SW board assembly.
Manually rotate gear~pulley to a position
where tray 1 and tray 2 overlap.
Remove 2 binders ) + J, cable clamp section
& + &,and CN1 through CN3 in Fig. 2-4,
Note:
Fig. 2-4
Remove four screws €) — @) holding the
loading base assembly and guide—base, and two
screws @) - holding the front panel.
Be careful that shorter ones are used for screw
“y) holding front panel, and screw ® holding
coupling plate.
As shown in Fig. 2—5, lift up guide—base
towards the back while pushing in the front
panel direction.
After confirming the @ section (Protrusion
section for positioning the bottom of the guide
base) in Fig. 2—5 has been removed, move the
mechanism toward the rear panel by lifting up
the back and making sure not to damage
flexible cable (in Fig. 2—4) of the pickup
assembly,
Remove the mechanism assembly while making
- gure not to damage @ (front panel screw
retaining section), and place at the left side of
the unit.
Rotate gear—pultey by hand to the position
that none of the three switches U, S and L
is pressed (which is slightly forward position
from the state that tray 1 overlaps tray 2).
(Refer to Fig. 2—6)
Remove one screw @ holding the SW board
assembly and remove the SW board assembly.
When attaching it, fix J601’s lead wires to place
between SW board assembly and chassis as
shown in Fig, 2-6,
Coupling plate
Guide base
Fig. 2-5

e REMOVAL OF LOADING MOTOR
Mi;
Gear pully
Remove rubber—belt after completing steps 1
through 7 in “Removal of SW _ Board
Assembly”,
Remove retaining ring ® holding gear—pulley
in Fig. 2-10 and remove gear—pulley.
Remove retaining ring @ holding gear, and
remove gear.
Remove 3 screws ®}) — &3 holding motor—base,
and remove motor—base.
Remove 2'screws 6) . 62) holding loading motor.
When attaching, be sure to guide the lead wires
of J601 so that they are between the SW board
assembly and the chassis. (Refer to Fig. 2-6)
Retaining ring ©
Gear
Retaining
Motor base
White (put a red mark
on the motor)
Fig. 2-7
e REMOVAL OF FL PLATE A
1. Lift up FL plate A, paying attention that the
two upper claws do not become damaged.
2. Release FL plate A from the two claws attached
to the lower part of the hole in the front panel.
3. Remove FL plate A in the direction of the
arrow,
Claw 4
~ Claw
e REMOVAL OF PLAY BUTTON
Note :If excessive force is applied when removing the
play button, it may be damaged or deformed.
Therefore, proceed in the following order.
Slowly pull out the play button along with
track button towards the front.
Rotate the play button and track button as the
two claws catch to pull it off the 7 pins.
Remove the play button and track button from
the front panel.
Fig. 2-9.
3. REASSEMBLY
@ ATTACHMENT OF TRAY 1
* Refer to page 36.
@e ATTACHMENT OF TRAY 2
* Set slide—angle L unit to the foremost posision
(where opening of tray 2 is completed), and
attach tray 2 in accordance with “attachment
of tray 1” in page 36.
e ATTACHMENT OF RACK U AND
RACK L
1, Set shaft GD of slide—angle U unit, shaft GD
of slide—angle L unit, auxiliary arm U, and
auxiliary arm L to the positions shown in Fig.
3-1.
Fe Auxiliary arm U
Auxiliary arm L ¥ Gy)
Fig. 3-1
2. As shown in Fig. 3-2, attach the racks U*L
so that the tips are at the tip positions “™)
and @ of each >» mark sticked on the chassis.
Insert the upper portion of the rack first and
attach it as arrow shown in Fig. 3-3.
8. Tighten 5 screws - @.
ae (3 €
a
m7,
a
®
®
©
Fig. 3-2
Rack U Rack L
Fig. 3-3
@ ATTACHMENT OF MOTOR-—BASE © ATTA
1,
Make
sure
that
the
positions
of
rack
L
and
LEVE!
rack
U
are
within
the
range
indicated
by
the
Note
:
dotted
lines
in
relation
to
the
position
of
@
1.
Ref
in
Fig.
3-4,
(Position
at
which
U,
S,
and
L
-€
switches
are
all
OFF.)
asse:
2.
Make
sure
that
the
3
switch
levers
(U,
S,
and
2.
Man
L)
attached
to
motor—base
are
not
pushing
an
each
switch.
high
3,
Attach
motor—base.
3.
Atta
to s
Rack U | 4, Atta
to §
guid
Slide ang’
Fig. 3-4
@e ATTACHMENT OF GEAR
1. As shown in Fig. 3—5, position rack U fully
to the left and rack L fully to the right.
(When attaching the gear with the tray
inserted, set the tray horizontally in a similar
manner to the inserted condition. Also, when
shifting the rack U and rack L to the position
as shown in Fig. 3—5, shift the both racks at
the same time. (This is because the mechanism
is. designed as mentioned in “Relationship
between slide angle shaft movement range and
tray movement range” on page 71.))
2. Attach the gear and hold in place with
retaining ring @.
o-_ Rack U
Retaining @ ~~ Rack L =
Fig. 3-5

on that the
lamaged.
ws attached
front panel.
tion of the
FL plate A
]
moving the
' deformed.
order.
along with
tton as the
7 pins.
utton from
Play button
button
3. REASSEMBLY
@ ATTACHMENT OF TRAY 1
%* Refer to page 36.
@ ATTACHMENT OF TRAY 2
* Set slide—angle L unit to the foremost posision
(where opening of tray 2 is completed), and
attach tray 2 in accordance with “attachment ;
of tray 1” in page 36,
@ ATTACHMENT OF RACK U AND
RACK L
1, Set shaft Gy of slide—angle U unit, shaft @
of slide-angle L unit, auxiliary arm U, and
auxiliary arm L to the positions shown in Fig.
3-1.
- Auxiliary arm U
Auxiliary arm L ae
[My
© =a ope Ey
Fig. 3-1
2. As shown in Fig, 3-2, attach the racks U-L
so that the tips are at the tip positions @)
and @3 of each » mark sticked on the chassis.
Insert the upper portion of the rack first and
attach it as arrow shown in Fig, 3-3.
3, Tighten 5 screws 6) — @).
Rack U Rack L
Fig. 3-3
@ ATTACHMENT OF MOTOR-BASE
1. Make sure that the positions of rack L and
rack U are within the range indicated by the
dotted lines in relation to the position of ©
in Fig. 3—4, (Position at which U, S, and L
switches are all OFF.)
2. Make sure that the 3 switch levers (U, S, and
L) attached to motor—base are not pushing
each switch.
3. Attach motor—base,
Rack U |
Fig. 3-4
@ ATTACHMENT OF GEAR
1, As.shown in Fig. 3—5, position rack U fully
to the left and rack L fully to the right.
(When attaching the gear with the tray
inserted, set the tray horizontally in a similar
manner to the inserted condition. Also, when
shifting the rack U and rack L to the position
as shown in Fig, 3—5, shift the both racks at
the same time, (This is because the mechanism
is designed as mentioned in “Relationship
between slide angle shaft movement range and
tray movement range” on page 71.))
2. Attach the gear and hold in place with
retaining ring ©.
Retaining @ Rack L —
Fig. 3—5
e
ATTACHMENT OF SYNCHRONOUS
LEVER
Note: Attach with tray 1 and tray 2 removed.
1,
Refer to Fig. 3-6 and remove 2 screws €)
- €) ‘and slide guide—base toward main board
assembly.
Manually rotate gear—pulley and position slide
—angle U unit and slide—angle L unit at their
highest positions.
Attach sections ® and ® of synchronous lever
to sections @ and @ respectively.
Attach sections @ and ® of synchronous lever
to section © of the guide and section @ of
guide—base respectively.
Slide angle L unit
Guide — base
Fig. 3-6
ag Di Bol OS)

PD-T503
|
a
4
|
2
it
3
aL
4.1. Exterior
4, EXPLODED VIEWS AND PARTS LIST
NOTES :
i ¢ Parts without part number cannot be supplied. ; A
* The A\ mark found on some component parts indicates the impotance of the safety factor of the part. Therefore, when
replacing, be sure to use parts of identical designation,
* Parts marked by “®” are not always kept in stock, Their delivery time may be longer than usual or they may be unavailable.
Parts List of Exterior
Mark _ No, Part No. Description Mark No. Part No. Description —
A® 1 PW2Z1565 Main board assembly 41 PDZ30PO50FMC Screw
0) 2 PWZ1571 Control board assembly 42 PMZ30PO60FCU Screw
| A 3 CM-—22C Strain relief 43 PYY1088 Clamper assembly
H A 4 PDG1015 AC Power cord 44 PYY1091 Servo mechanism assembly
: A 5 PTT1091 Power transformer ; 45 PYY1093 Bonnet
6 PBA1011 Screw © 46 PNW1477 Guide base
7 PBH1072 Door spring .
| 8 PNM1070 1 Stopper 101 Transformer board B
: 9 PNW1376 Insulator assembly
i 10 RNH-184 Cord clamper 102 Headphone board assembly
103 Under base
i 11. PBK1060 Plate spring 104 Rear base
| 12 PHC1043 Spacer (For Packing) 105 Panel angle
| 13 PNM1011 Cushion rubber
| 14 PNW1475 Tray 106 P.C.B angle
15 PNW1476 Guide 107 Switch angle
| 108 Mechanism support
16 PNW1479 Clamper holder 109 Holder —
1 17 PEB1014 Froating rubber 110 P.C.B spacer
18 PAC1058 Power Button (OFF /ON)
: 19 PAC1347 0/C- Button 111 Magnet
| (TIME, OPEN/CLOSE 112 Synchronous lever
: DISC 1, I) 113 Joint plate
20 PACIi348 © Track Button 114 Yoke
(AUTO EJECT, REPEAT, 115 Clamper
“, »>, Ke, prt)
116 Loading base assembly
21 PAC1349 Play Button 117 Name plate Cc
CH WE, > ,DISC 1, DISC 11) 118 Power switch joint
22 PAC1350 Button (A) 119 Binder
(PROGRAM, RANDOM 120 Hold Rubber
PLAY, EDIT)
23 PAC1351 Select Button 121 Hold angle
(1, 2, 3, +10, 4, 5, 6,
220, 7, 8, 9, 10)
24 PAC1370 Knob (LEVEL) *1. The stopper consist of the big ring part and the small
25 PAM1255 FL Plate (A) ring part.
If you stick the stopper to the leg, stick the big ring —
26 PAM1265 Name plate part to the front leg, and the small ring part to the
27 PAM1266 Window rear leg.
28 PNW1498 Door 1
29 PNW1499 Door 2
30 PYY1104 Control panel unit 8
a] 31 BBZ30POG0FMC Screw Ey-
i 32 BBZ30PO80FZK Screw
33 BBZ30P120FMC Screw a
i 34 BMZ20PO40FZK Screw
|
35
FBT40PO80FZK
Screw
COS
QB
D
‘ 36 IBZ30PO5O0FZK Screw ‘ (For the (For the
: 37 IBZ30P120FCC Screw sant lnay rear leg)
38 PSA40PO80FZB ’ Screw oe
39 IPZ3O0PO80FMC Screw
40 PDZ26PO50FMC Screw
8B 9

pore
41 Exterior
fore, when
inavailable,
assembly
o5
7
I
LI/SZ
ies
VAN
Oe
SAX
assembly
S)
rt
g
2
o
Vey
embly
@
y
KY
\
So W/
r .
IOS
ec
A
the small
big ring —
t to the

4.2 Mechanism Section
12

Parts List of Mechanism Section
Mark
OO
No.
*2
~s COOND GORWP =
wi ee
QO N=
14
Part No.
CGDYX104M25
PBA1037
PBH1008
PBK1057
PEB1072
PLA1003
PLA1004
PNW1063
PNW1064
PNW1066
PNW1520
PSH1003
PYY1109
PXM1002
. PWY1009
BPZ20PO80FZK
PMZ20P030FMC
PYY1025
PXM1001
PYY1091
PBA1035
PBH1074
PBH1076
PEB1106
PNW1478
PNW1486
PMZ20P030FMC
PPZ26PO80FMC
PSZ26PO50FMC
WA82L060C035
WT26D047D025
YE25FUC
PYY1089
PNB1180
PNB1181
PNW1481
PNW1482.
PNW1483
PNW1484
PNW1485
PNW1487
PNW1488
PXT1025
PXT1026
Description Mark_ No.
Semiconductive ceramic 101
capacitor 102
Screw M2x2.5 103
Drive spring 104
Plate spring 105
Belt
106
Drive screw 107
Guide bar 108
Carriage plate.
Disc table
Pulley *2,
Mechanism chassis
Slide switch
($101, INSIDE)
Spindle motor assembly
(with oil)
Motor
(CARRIAGE, LOADING)
Pick-up assembly
Screw
Screw
Motor assembly
(CARRIAGE)
Spindle motor
Servo mechanism
assembly
Screw
Spring
Spring
Belt
Sync gear
Gear
Screw
Screw
Screw
Washer
Washer
E ring
Motor assembly
(LOADING)
Auxiliary arm (U)
Auxiliary arm (L)
Rack (U)
Rack (L)
Switch lever (U)
Switch lever (S)
Switch lever (L)
Gear pulley
Loading base .
Slide angle (U) unit
Slide angle (L) unit
Part No.
Description
Earth lead unit
Motor pulley
Base plate
Carriage M board
Motor base
Binder
Loading base assembly
SW board assembly
When reinstalling the No. 15 Pickup assembly after
replacement, apply oils (GEM1002) to No. 7 guide. bar.
At this time, be sure to apply proper quantity of oils
to the guide bar surface evenly.
43
5. PACKING
Parts List of Packing
Mark No.
PHA1087
PHA1088
PHC1043
PHG1269
PHG1293
223-007
PDE-319
PDE1002
PRB1077 OND OF AWN
PRE1078
9 PWW1030
10 PZN1001
101
Part No.
Description
Protector (L)
Protector (R)
Spacer (in the tray 2)
’ Packing case
Packing case (KC type)
Sheet
Connection cord
Connection cord
Operating instructions
(English)
Operating instructions
(English, French)
(KC type)
Remote control unit
Battery cover
Battery
PD-T503
14
UT
C