Pioneer PD-F25 User manual

Service
Manual |=
FILE-TYPE CD PLAYER
PD-F25
ORDER NO.
RRV 1667
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
PIONEER ELECTRONIC CORPORATION
RVICE, INC.
PIONEER ELECTRONICS SE
| yee [pore] _—_PomerRequement | amare
A
CONTENTS
1. SAFETY INFORMATION ....0.. cece cscs cesses erensereeeees 2
2. EXPLODED VIEWS, PACKING AND PARTS LIST ...... 3
3. SCHEMATIC AND PCB CONNECTION DIAGRAMS . 12
4:-"PGB PARTS LIST 2i03...ctnae cian dated 23
5. ADJUSTMENTS. 00... cece esecneeeeceeteeeneseesaneeneree 25
6. FL INFORMATION ....00. ccc certs cee eeeeeneseneeneree 30
7. IC INFORMATION 00. eeeeerettseeeeeeneteeenes 31
8. OPERATIONAL DESCRIPTION ........... ccc seeeeseetees 33
9. NEW FUNCTIONS ...0 oe cca cee ence ceeeteenenseeee 35
10. BLOCK DIAGRAN .......... eee ec eee rererteceeeteneeeeeees 36
11. DISASSEMBLY 0000... cseereeceeseneeesereeneesenees 37
12. PANEL FACILITIES .000.o ee cree reeetaneecnees 38
13. SPECIFICATIONS ...0.. cece cee neseeeteeesseneseneesenee 38
P.O.Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923
© PIONEER ELECTRONIC CORPORATION 1996
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
T-FZE JULY 1996 Printed in Japan

PD-F25
1. SAFETY INFORMATION
This service manual is intended for qualified service technicians; it is not meant for the casual
do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been
trained to properly and safely repair complex products such as those covered by this manual.
improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do So and refer the repair to a qualified service technician.
WARNING
Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which
may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).
When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with
the solder. Also, when soldering do not inhale any smoke or fumes produced.
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS ANY MEASUREMENTS NOT WITHIN THE
The following check should be performed for the LIMITS OUTLINED ABOVE ARE INDICATIVE
continued protection of the customer and service OF A POTENTIAL SHOCK HAZARD AND
technician.
LEAKAGE CURRENT CHECK MUST BE CORRECTED BEFORE RETURN-
Measure leakage current to a known earth ground ING THE APPLIANCE TO THE CUSTOMER.
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or 2. PRODUCT SAFETY NOTICE
equivalent between the earth ground and all exposed Many electrical and mechanical parts in the appliance
metal parts of the appliance (input/output terminals, have special safety related characteristics. These are
screwheads, metal overlays, control shaft, etc.). Plug often not evident from visua! inspection nor the
the AC line cord of the appliance directly into a 120V protection afforded by them necessarily can be obtained
AC 60 Hz outlet and turn the AC power switch on. Any by using replacement components rated for voltage,
current measured must not exceed 0.5 mA. wattage, etc. Replacement parts which have these
special safety characteristics are identified in this
Service Manual.
3°
Electrical components having such features are
identified by marking with a | onthe schematics and
Reading should on the parts list in this Service Manual.
not be above The use of a substitute replacement component which
0.5 mA nee
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 continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER
Service Manual. A subscription to, or additional copies
of, PIONEER Service Manual may be obtained at a
nominal charge from PIONEER.
Leakage
current
tester
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
AC Leakage Test

PD-F25
2.
EXPLODED
VIEWS,
PACKING
AND
PARTS
LIST
NOTES:
¢ Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
©
The
A\
mark
found
on
some
component
parts
indicates
the
importance
of
the
safety
factor
of
the
part.
Therefore,
when
replacing,
be
sure
to
use
parts
of
identical
designation.
@
Paris
marked
by
"@"
are
not
always
kept
in
stock.
Their
delivery
time
may
be
longer
than
usual
or
they
may
be
unavailable.
2.1 PACKING
Parts List
Mark No. Description Parts No.
1 Packing Case AHD7335
2 CD Case Rack AMR7066
NSP 3. Warranty Card ARY 1044
4 Operating Instructions (English) ARB7087
5 Cord with Mini Plug PDE1247
6 Cord with Plug PDE1248 3 >)
NSP 7 Battery (R6P. AA) VEM - 013 2
NSP 8 _~ Poly. Bag Z21 - 019 4 8 Jj
9 Remote Control Unit (CU —- PD079) AXD7072 SKE
10 Battery Cover AZA7148 5
11 Mirror Mat Sheet (800X900X0.5) Z23 — 020
12 Pad F AHA7078 6 _~
13 PadR AHA7079 Go
13

PD-F25
2.2 EXTERIOR
Parts List
Mark No. Description Parts No.
I CDASSY AWZ8019
2. Flexible Cable 22P ADD7013
3 Flexible Cable 29P ADD7028
i 4 AC Power Cord PDG1015
5 Power Transformer PTT 1237
6 Tension Rod ABH7105
7 Rubber Sheet AEBIII1
NSP 8 PCB Holder AEC - 785
NSP 9 Card Spacer AEC7053
10 Flexible Guide AMR7050
{t Chassis ANA7027
12. Rear Panel GM ANC7452
13. Sub Chassis AND7004
14 Link ANG7045
15 Cord Stopper CM - 22C
NSP 16 Card Spacer REC! 156
17 Rack Spring ABH7057
18 Guide Shaft 25 ALA7007
19 Shaft Holder ANB7021
20 Disc Rack ANW7069
Mark No. Description Parts No.
21 ~Rack Base S ANW7070
22 Damper ASSY AXA7018
23 Screw PBA1085
NSP 24 GM Mechanism AXA7045
25 ‘Disc Rack Panel AAK7251
26 ~—Bonnet ANE7082
NSP 27 65 Label ORW 1069
28 Caution Label ARW7013
29 Cord Clamper RNH - 184
30 ~—s Binder ZCA - SKB90BK
31 Screw IBZ30PO80FMC
32 =Screw BBZ30P080FZK

PD-F25
724
@o —
32
Refer to "2.4GM MECHANISM ASSY"
4
‘
28
<
GA
above the TENSION ROD.
NOTE : Screws adjacent to ¥ mark on product
are used for disassembly.
Note : Pass the FLEXIBLE CABLE
i
a:
< (2)
oe
To “FRONT PANEL |
SECTION"
PANEL
SECTION"
To "FRONT
A”

PD-F25
2.3 FRONT PANEL SECTION
Parts List
Mark No. Description Parts No. Mark No. Description Parts No.
1 FRNTASSY AWZ8025 11 Standby Lens AAK7182
2 Door Spring ABH7065 12 Sub Panel AAK7205
3 Hood Spring ABH7066 13. Front Panel GM AMB7271
4 Rubber Sheet AEBII11 NSP 14 _— Getter Label AAX7289
5 Rubber Sheet AEB7044 15 Screw BBZ30PO80FZK
6 KnobGM AAD7211 16 Screw BPZ30P080FMC
7 Hood AAK7179
8 Door AAK7196
9 Power Knob GM AAD7212
10 FL Panel AAK7181

PD-F25
GC
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PD-F25
2.4 GM MECHANISM ASSY
Parts List
Mark No. Description Parts No.
NSP 1 MECHA BOARD ASSY AWZ7835
NSP 2 SENSOR BOARD ASSY AWZ7836
NSP 3. MOTOR BOARD ASSY AWZ7837
NSP 4 SW BOARD ASSY AWZ7838
5 ArmA Spring 2 ABH7124
6 Gear Plate Spring ABH7051
7 ~~ Clamp Spring ABH7107
8 Lock Lever Spring ABH7120
9 Lock Angle Spring 2 ABH7123
10 Loading Belt AEB7029
11 Belt AEB7030
NSP 12 Lock Angle ANB7027
NSP 13 Lock Lever ANB7038
NSP 14 _— Servo Stopper S ANB7047
15 Loarding Base ANW7086
16 Cam Cover ANW7052
17 Motor Holder ANW7053
18 Sensor Holder ANW7054
19 Froat Base ANW7080
20 Clamper Holder ANW7084
21 = =Arm(A) ANW7057
22 ~=Arm (B) ANW7058
23 Drive Plate ANW7059
24 ~—~Amm Plate ANW7060
25 Gear Plate ANW7082
NSP
NSP
Mark No. Description Parts No.
26 Gear Pulley B ANW7062
27 GearA ANW7063
28 Drive Gear ANW7064
29 ~—séBBearing ANW7065
30 Gear Pulley A ANW7066
31 Select Gear ANW7067
32 ~—-Roller ANW7068
33 LEDLens ANW7072
34 ~—-RollerB ANW7075
35 Motor Pulley PNW 1634
36 Clamper PNW2692
37 ~—- Float Spring ABH7049
38 Connector ASSY (4P) ADE7006
39 Float Rubber AEB7028
40 Servo Mechanism ASSY GM AXA7028
41 Screw IPZ20PO80FMC
42 Motor ASSY (SELECT) AEA7005
43. Motor PXM1002
44 Motor ASSY (LOADING) AEA7006
45 Loading Motor VXM1034
46 = Assist Angle 2 BK ANB7083
47 Screw BBZ30PO080FZK
Use oil types for GM Mechanism ASSY
FROIL GYA1001
HANARL GEM1016

PD-F25
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=
=
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PD-F25
2.5 SERVO MECHANISM ASSY GM
Parts List
Mark No. Description Parts No.
1 Gear 1 PNW2052
2 Gear 2 PNW2053
3. Gear3 PNW2054
4 Carriage Base PNW2445
5 PICKUP ASSY AEA7004
6 D.C. Motor ASSY PEA1235
7 Carriage D.C. Motor ASSY PEA1246
8 Pinion Gear PNW2055
NSP 9 Carriage D.C. Motor/0.3W PXM 1027
10 Disc Table ASSY PEAI314
11 MECHA. PCB ASSY PWX1192
12 Guide Bar PLA1094
13. Screw JFZ17P025FZK
14 Screw JFZ20P040FMC
15 Washer WT12D032D025
16 Clamp Magnet PMF1014
17 YokeM PNB1312
NSP 18 __ Disc Table PNW2410
NSP 19 _ Float Angle ANB7020
20 Gear Stopper PNB 1303
21 = Screw BPZ20P060FMC
22 = Screw BPZ26P100FMC
10

PD-F25
@ How to install the disc table.
[1] Use Nipper or other tool to cut the two sections marked @ in figure [1].
Then remove the Spacer.
[2] White supporting the Spindle Motor Shaft with the stopper, put Spacer on top of the Yoke M,
and stick the Disc Table on top (takes about 9kg pressure). Take off the Spacer.
ol [2]
Spacer
(Pressure of about 9 kg)
bo Gb Disc Tabie
—
Spacer Setting
Position
Float Base
0.9 mm+0.05 mm 6.9mm
11

PD-F25
3. SCHEMATIC AND PCB CONNTCTION DIAGRAMS
NOTE FOR SCHEMATIC DIAGRAMS (Type 4A)
1. When ordering service parts, be sure to refer to
"PARTS LIST of EXPLODED VIEWS" or "PCB
PARTS LIST“.
2. Since these are basic circuits, some parts of them or the
values of some components may be changed for improve
ment.
3. RESISTORS:
Unit: k:kQ, M:MQ, or Q unless otherwise noted.
Rated power: 1/4W, 1/6W, 1/8W, 1/10W unless otherwise
noted.
Tolerance: (F): +1%, (G): 22%, (K): 10%, (M): 20% or +5% un-
less otherwise noted.
4. CAPACITORS:
Unit: p:pF or uF unless otherwise noted.
Ratings: capacitor (uF)/voltage(V) uniess othrewise noted.
Rated voltage: 50V except for electrolytic capacitors.
5. COILS:
Unit: m:mH or pH unless otherwise noted.
6. VOLTAGE AND CURRENT:
L_] ore V:
DC voltage (V) in PLAY mode unless otherwise noted.
< MA or & MA:
DC current in PLAY mode unless otherwise noted.
Value in ( ) is DC current in STOP mode.
7. OTHERS:
¢@ or@ : Adjusting point.
. ~«@ : Measurement point.
¢ The A\ mark found on some component parts indicates the im-
portance of the safety factor of the parts. Therefore, when re-
placing, be sure to use parts of identical designation.
8. SCH-C] ON THE SCHEMATIC DIAGRAM:
* SCH-C indicates the drawing number of the schematic dia
gram. (SCH stands for schematic diagram.)
9. SWITCHES (Underline indicates switch position):
FRNT ASSY
$101 : BEST
$102 : ©(DISC)
$103 : me, mri(SKIP/SCAN)
$104 : RANDOM
$105 : @(DISC)
$106 : ke, <(SKIP/SCAN)
S107 : TIME
$108 : m(STOP)
$109 : »/m(PLAY/PAUSE)
$201 : POWER
$301 : RACK
CD ASSY
$401 : HOME
SW BOARD ASSY
S651 : CLAMP
$652 : EJECT
MECHA. PCB ASSY
S610 : INSIDE
12
NOTE FOR PCB DIAGRAMS
1. Part numbers in PCB diagrams match those in the schematic
diagrams.
2. Acomparison between the main parts of PCB and schematic
diagrams is shown below.
Symbol in PCB Symbol in Schematic
Diagrams Diagrams
BC EBCE
Transistor
BceEBCeE
Part Name
eB eaee|
it]
QO m
Transistor
with resistor
DG@SsoDG Ss
Field effect
transistor
Resistor array
3. The parts mounted on this PCB include all necessary parts
for several destination.
For further information for respecitve destinations, be sure
to check with the schematic diagram.
3-terminal
regulator

PD-F25
3.1 MECHA BORAD, SENSOR BOARD, MOTOR BOARD, SW BOARD, PICKUP AND MECHA. PCB
ASSEMBLIES
MOTOR BOARD ASSY SENSOR BOARD ASSY
TO CD ASSY CN13
MECHA BOARD ASSY
TO MECHA.PCB ASSY CN610
SW BOARD ASSY
Sg Hes aad
CLMP Pn screnirenenare A NEP OS GAL oni ean Ap
ANP7@85-B
@ This diagram is viewed from the mounted parts side.
13

PD-F25
PICKUP ASSY
AEA7004
TRACKING FOCUS
col COIL
7
t
{ ! i} t I |
1 ! | H
J
173979-4 —— - —— - —
| MECHA.PCB ASSY
SERVO MECHANISM | PWX1192
INSIDE SW DSG1016
ASSY
GM
!
{
AXA7028
2,
1
oO
'
6!
1
I
i]
Behe
A
oaths
teed
te
Aaa
Nee
Se
eee
ee
ep
Ns
!
1
|
u
1
|
|
rt
t
|ICARRIAGE
DC
MOTOR
|
|
|
|ASSY
PEA1246
i!
MECHA
BOARD
ASSY,
,
b----~-----!]
SENSOR
BOARD
ASSY,
14
MOTOR BOARD ASSY, SW BOARD ASSY,
PICKUP ASSY, MECHA. PCB ASSY

es oe =
PD-F25
LOADING MECHANISM BOARD ASSY AWX701 3
' SW BOARD ASSY
AWZ7838
' '
, 1
[AEA7006] [AEA7006] : !
H H
=, Loapine! $651 S652 u
MOTOR t vSG1006 vSG1006 |
1 os fh] 1
' '
' 1
1 '
1 '
' 1
1 '
1 '
. '
SENSOR BOARD ASSY |
AWZ 7636
H
!
'
5
Jes2 |!
D20PWWO315E
@
fegeoe es
1 | [Rg |
‘ L_Ipes2
GP1S$24 '
A
a
IOO©OOVOOOOOOA
Oe
7
TO CD ASSY CN13 (= SCH—2)
OGOOO
AY) Ve VRPGS6? 5S cNeS3?
173979-4
| : Ao te man E star nlate iol neat he RED GREEN SLEM22R-2! |
ese
a
Sg
IY
eae
ey
SOR
mE
[> :Focus Servo Loop Line ek. ‘Loading Motor Route
> :Tracking Servo Loop Line eh :Spindie Motor Route
m@> :Signa!l Route cA :Carrlage Motor Route
oA Select Motor Route
MECHA BOARD ASSY,
SENSOR BOARD ASSY,
MOTOR BOARD ASSY, SW BOARD ASSY,
PICKUP ASSY, MECHA. PCB ASSY
15

PD-F25
3.2 CD AND FRNT ASSEMBLIES
4
CO TEST POINT $
[C8201 - LOADING. SPINDLE
§20a5-2245 and SELECT MOTOR DRIVE IC
|
3
. I
&
1C8301
CxD2508a4Q
ani
1
7
(DECODER+DAC)
TO MECHA BOARD ASSY CN653 (= SCH-1)
<
3
g
A 58888
1¢8202
FOUCUS, TRACKING COIL
and CARRIAGE MOTOR
DRIVE
CD ASSY (AWZ801 7)
52045-2345 N12
FL TUBE
“Atm | Te
CD ASSY, FRNT ASSY
16

PD-F25
1¢ee01 (372)
-™LaAasser—P
[C8401 (172) LOW PASS FILTER
€1) yan (172)
xB 7045
Leh LINE GUT
ao
ceaas 100° '€8401 (272)
LOw PASS FILTER A111 (272)
ane7043
1¢ae01 (272)
C -Fecus Servo Loop Line
@® Tracking Servo Loop Line
@® Signal Route
@m& Loading Motor Route
aesgicenava mA Spindie Moter Route
ZERO DETECTING
MUTE cA Carriage Motor Route
RS<07 & -Select Motor Route
D2144s
GNDA
=) a) vit
ce3s2z0F) ‘ = 02 00ew 31 OF
10008 e430 RMEX
= 227500 eat & RRRE
10K (1.74) F
ONDO = V-BCO ayes anno
ecco
eeeo
aeacac
Ser es
Arn ermas7
| P0G1015
aC120V SO/60Hz
[ 080S1-D80S6, 0B301,D8401-DB8406 188254 cussi3 wo es
[NOTES] 1, Unmarked Diode are 1SS254
2,Cepacitors
marking:
CAUTION
FOR
CONTINUED
PROTECTION
¥ cas gh ceane GE cxsove REPLACE WITH SAME TYPE
sore césoul NUMBER ICP-N10. MED BY
A Bi, ccs ROM CO.,LTD, FOR 1631
CD ASSY, FRNT ASSY
17

PD-F25
WAVEFORMS
Note : The encircled numbers denote measuring points in the
schematic diagram.
CN8201-Pin1 : PLAY MODE
R
OO avidly 500nsec/div
CN8201-Pin1 : TRACK SEARCH
MODE (RF)
S0OmVidiv 200nsec/div
erry
& se
CN6&201-Pin6 : PLAY MODE
(FOER)
100mVidiv 10msec/div
CN8201-Pin2 : PLAY MODE
(TRER)
1V/div 10msec/div
*] SOT-JUMP : After switching to the pause mode, press the
manual search key.
*2 FOCUS-IN : Press the key without loading a disc.
1C8202-Pin3 : FOCUS-IN (*2) MODE @) 1C8201-Pin3 : TRACK SEARCH MODE
(FODR) (SPDR)
1Vidiv 200msec/div 2V/div 200msec/div
1C8202-Pin3 : PLAY MODE 1C8202-Pin9 : PLAY MODE
(FODR) (CADR)
1Vidiv 1msec/div O.5Vidiv 2sec/div
(6) 1C8202-Pin4 : PLAY MODE
(TRDA)
500mV/div 1msec/div
(8) 1C8202-Pin9 : TRACK SEARCH MODE
(CADR)
2Vidiv 200msec/div
1C8202-Pin4 : SOT-JUMP (*1) MODE (9) 1C8151-Pin32 : PLAY MODE
(EFM)
(TRDR)
2V/dv 500nsec/div
500mV/div 1msec/div
ride n idee wei
’
1C8301-Pin69 : PLAY MODE (1kHz)
(4) CN8201-Pin2 : 5SOT-JUMP (*1) MODE @ 1C8201-Pin3 : PLAY MODE
(TRER) (SPDR) (NLPWM) (D/A DATA OUT)
2Vidiv 500usec/div
1V/div tmsec/div
2Vidiv SOmsec/div

1C8301-Pin70 : PLAY MODE (1kHz)
(LPWM) (D/A DATA OUT)
2Vidiv 500usec/div
: TRACK SEARCH MODE
Upper : CN8201-Pin1(RF) 1V/div
Lower : 1C8151-Pin29 (MIRR)
2Vidiv 200nsec/div
eV aw taf
POKER ITT
Satiouke 44 vs
: PLAY MODE
Upper : CN8201-Pin1(RF) 1V/div
Lower : |C8151-Pin30 (DFCT)
5V/div 200usec/div
Q8401-Collector : PLAY MODE (1kHz)
(COL)
1VAdw 1 200usec/div
1C8301-Pin25 : PLAY MODE
(MDP)
2V/div 2usecidiv
1C8301-Pin31 : PLAY MODE
(PCO)
2V/div 10yusec/div

PD-F25
CD ASSY ® This diagram is viewed from the mounted parts side. PCB-2
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TOFRNT ASSY CN62
ANP7105-C
20