Pioneer SX-F21 User manual

Service
anual
STEREO RECEIVER
S =
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
| Model Power Requirement Remarks
SX-F21 | _Pemer Requirement | Rear
wy | 0 __|_ace20-20v
a
AC230V
ORDER NO.
RRV 1726
CONTENTS
1. SAFETY INFORMATION ....00....... ces cceeceeescsceeesssesceeees 2
2. EXPLODED VIEWS AND PARTS LIST ...........0.....0. 3
3. SCHEMATIC DIAGRAM ......0........ceccscseeceveccceesseeenees 8
4. PCB CONNECTION DIAGRAN ..............ccccscsceseseceees 18
5. PCB PARTS LIST ..........cccccccscseeessssccnecececssaeaenenereesens 30
6. ADJUSTMENT ............2...::0cccceseeceseseceeesececesscssceeenceeee 34
7. GENERAL INFORMATION ...W0w..... cece eneseesceeeeenee 36
Tal: (PARTS tis cece cebsdnctacavascdsovsctectesnintuecvivceusueunthecendatevs 36
abe NG wascsccateconsscecevestansaaveds sv tasedavadsacuazaventisecce 36
TA DISPLAY siiscsddxecctccdeaidediccsteuadeesvsrdescsavese 38
7.2 BLOCK DIAGRAM ..............:cccccseseseteeceeecsssetsrenens 42
8. PANEL FACILITIES AND SPECIFICATIONS ............. 44
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE, INC. P.0.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 1997 T-FZE JAN. 1997 Printed in Japan

SX-F21
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.
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols -@-—H- (fast operating fuse) and/or -§—&—% (slow operating fuse) on PCB indicate that replace-
ment parts must be of identical designation.
REMARQUE
(POUR MOD+LE CANADIEN SEULEMENT)
Les symboles de fusible §&—H (fusible de type rapide) et/ou -§E—% (fusible de type lent) sur CCI indiquent
que les piAces de remplacement doivent avoir la mEme dAsignation.
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
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 appliance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120V
AC 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.
{Using AC adapter
plug as required) = ground
AC Leakage Test
ANY MEASUREMENTS NOT WITHIN THE
LIMITS OUTLINED ABOVE ARE INDICATIVE
OF A POTENTIAL SHOCK HAZARD AND
MUST BE CORRECTED BEFORE RETURN-
ING 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 characteristics are identified in this
Service Manual.
Electrical components having such features are
identified by marking with a A\ 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 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.

SX-F21
2. EXPLODED VIEWS AND PARTS LIST
NOTES: @ Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
e The {\ 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.
e Screws adjacent to W mark on product are used for disassembly.
2.1 PACKING
(1) Parts List
Mark No. Description Parts No. Mark No. Description Parts No.
1 FM T-type Antenna ADH7010 11 Pad FSX RHA1220
2 Operating Instructions See Contrast table (2) 12 PadRSX RHAI221
3 Operating Instructions See Contrast table (2) 13. Packing Case See Contrast table (2)
4
Spacer
See
Contrast
table
(2)
14
Mirror
Mat
Sheet
750X600X0.5
Z23
—
007
5 AM Loop Antenna ATB7009 15 Battery Cover RZN1131
6 Optical Fiber Cables (L = 0.5m) RKX1031 NSP 16 Warranty Card ARY7008
7 Remote Control Unit (CU-SX112) RPX1121 NSP 17 _ Polyethlene Bag See Contrast table (2)
8) exten
NSP 9 AAA/RO3 Dry Cell Batteries VEM - 022
10 Polyethlene Bag 0.03X230X340 Z21 — 038
(2) Contrast Table
MY and NV types have the same construction except for the following:
ark| No. Symbol & Description MY TYPE NV TYPE
2
2
Operating instructions (English/French/German/Italian) RREI1156 Not used
Operating instructions (English) Not used RRB1181
3 Operating instructions (Dutch/Swedish/Spanish/Portguese) RRD1191 Not used
4
Spacer
Not
used
RHG1835
Packing Case RHG1796 RHG1831
Polyethlene Bag
Not used RHL1021

SX-F21
(1) Parts List
Mark No. Description Parts No.
1 BASE-AFASSY RWZ4043
2 SIDE-AFASSY RWZ4046
3 F-POWER ASSY RWZA048
4 TRANS ASSY RWZ4051
5 PRIMARY ASSY RWZA052
6 RDSASSY RWZA054
7 REGASSY RWZA055
8 FM/AM TUNER MODULE AXQ7058
9 DC Fan Motor AXM7003
10 AC Cord Stopper CM - 22B
AAs 1s AC Power Cord See Contrast table (2)
AN 12__«~*FU1 Fuse (T800mA) REK -— 099
“AN 13.‘ TI Power Transformer RTT1319
NSP 14 PCB Spacer AEC1372
15 Fan Cover AMR7013
16 Board Spacer DEC1388
NSP 17 PCB Holder PNW2100
18 Foot REC - 434
NSP 19 Chassis SX RNB1122
NSP 20 Heat Sink RNE1898
21 Insulator FASSY RNK2231
22 ~+=Bonnet SX REA1265
23 Rear Panel SX See Contrast table (2)
24 Screw ABA7003
25 Screw BBT30P080FNI
26 Screw BBZ30P080FMC
27 = Screw ABA7017
28 Screw BBZ40P060FCU
29 Screw ABA1024
30 UL Tube Z09 — 019
31 Plate RNM1050
ZN 32.~—s-FU2 Fuse (T2.5A) AEK1058
ZA 33s CN11 AC Outlet 1P See Contrast table (2)
A 34 ~~ Cl Ceramic Capasitor CKDYB102K50
35 Screw ABA1047
NSP 36 Fuse Card AAX1572
37 Binder ZCA - SKB90BK
ZN 38 ~~ Fuse (TSA) See Contrast table (2)
(2) Contrast Table
MY and NV types have the same construction except for the following:
ark | No. Syiibel Deacon Pp PartNo.
11
ane | NUE
AC Power Cord PDG1055
38 | Fuse (TSA) PEK 1003
23 Rear Panel SX RNA2141
CN11 AC Outlet 1P Not used

SX-F21
- 2.3 FRONT PANEL SECTION |
No.16 Panel Base SX
Note : Cutting Position

Parts List
Mark No. Description Parts No.
NSP 1 SXDISP ASSY RWM1973
2 H-P.ASSY RWZA061
3. JI Lead Card 20P RDD1378
4 J2 Lead Card 24P RDD1379
5 Shaft RLA1309
6 Shaft Holder RNK2264
7 Name Plate AAM1002
8 Function ButtonA RAC2136
9 Function Button B RAC2137
10 MENU Button RAC2138
11. SET Button RAC2139
12. VOL Knob ASSY RAC2140
13. JOG Knob SX RAC2141
14 Front Panel SX RAH2813
15 Display Lens SX RAH2761
16 Panel Base SX RAH2762
17. Indicator Lens SX RAH2763
18 FL Filter SX REC1282
19 VOL Spacer REC1295
20 Disply Frame RNK2228
21 ‘Display Panel RNK2275
22 ~=Screw BBZ30P080FMC
23 Washer VEC1254
SX-F21

SX-F21
3. SCHEMATIC DIAGRAM
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST”
3.1 OVERALL CONNECTION
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ee
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FOR
FUSE
REPLACEMENT
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CONTINUED
PROTECTION
AGAINST
RISK
OF FIRE,
ane)
ox
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eh
ae
ae
REPLACE
ONLY
WITH
SAME
TYPE
AND
RATINGS
ONLY.
oF
“

SX-F21
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dwa ‘ @awa ula
uua
Hf
@yusa
sia
OPTICAL-OUT [OUT sys
OPT ICAL—IN
GP1F32T
GP1F32R
wsJ
RWZ4046
i SIDE-AF ASS’ Y
AXM7003
DC FAN MOTOR
F-POWER ASS' Y
RWZ4048
=
RWM1 973
DISP ASS’ Y
SYS OUT
SYS OUT
YS GND
SYS IN
sys
IFAN+1 2V
(4HHP R
DOOD
OOOOHOHOOHOD
pebber
eng
pgeed
2 o
J6871
2
_
=
2 Sx
D20pdY0425E
{P. GNO} 3)
CNBO1
V+5
GNDOKI3
v-12
SYS OU
R SYS
+
K
>
!
SYS GND
L SYS IN
R SYS _ IN
v+12]
HP . GNOHG)
3S’ Y
1
HP SI)
HP LIC)
HP RI(@)

SX-F21
3.2 FM/AM TUNER MODULE
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.
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aur
on
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on
65
ee
cc
eN
58
Ko IS
oS
02
a
ja st ie mes
(RF VTL LLL
REGI1
°
768
GND 06205
DTC124EK-TLB
8 GND
a} se er
C6604
6.01
“
en
16603
aN
Kip
‘GND
GND
a
Vv
22uH
oe
(am)
AXK7043
SERB,
=
P
5
eu
—
7
a3
“OLS
7
<I
|
wm
EF
©
=>
©
|
|
cez03
0.022
|
TONDO
GND
t
|
AM
RF
TUNING
BLOCK
:
lan
Th,
eo
22|52
,
Z234
HH
ir
HH
|
A
FM/AM
TUNER
MODULE
7
|
(AXQ7058)
SIGNAL
ROUTE
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SIGNAL
ROUTE
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SIGNAL
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AUDIO
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