Pioneer VSX-453 User manual

® PIONEER
The Art of Entertainment
Service
Manual
ORDER NO.
ARP2849
AUDIO/VIDEO STEREO RECEIVER
VSX-403
VSX-463S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model i The vot b d by th
fyee VSX— 453 | VSX—403 |VSX— 4638} bases Regutremnent following method. eee wr
eta ha lhe
KUXJ oO (e) — | Aci20v a
[Koxs oO e) 1e) AC120V —
SDXJ oO —_— — | AC110V/120-127v/220v/240V With the voltage selector
@
The
“
S”
at
the
end
of
the
model
number
indicates
that
a
programable
remote
control
unit
is
supplied.
CONTENTS
1.
SAFETY
INFORMATION
s++++ssss-sessseroses
2
6.
DISASSEMBLY
----
2. EXPLODED VIEWS, PACKING AND 7. BLOCK DIAGRAM
PARTS
LIST
8.
IC
INFORMATION
--
3.
SCHEMATIC
AND
PCB
CONNECTION
9.
REMOTE
CONTROL
UNIT
DIAGRAMS
[CU-VSX083
(AXD1387)]-
4.
PCB
PARTS
LIST
10,
PANEL
FACILITIES
5. ADJUSTMENTS 11. SPECIFICATIONS
PIONEER ELECTRONIC CORPORATION = 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.0. Box 1760, Long Beach, California 90801 U.S.A.
PIONEER ELECTRONICS OF CANADA, INC. 300 Alistate Parkway Markham, Ontario LR OP2 Canada
PIONEER ELECTRONIC [EUROPE] N.V, Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia TEL: [03] 580-9911
© PIONEER ELECTRONIC CORPORATION 1994 O-DFS MAR. 1994 Printed in Japan

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 -§&=R- (slow operating fuse) on PCB indicate that replacement parts
must be of identical designation.
REMARQUE
(POUR MODELE CANADIEN SEULEMENT)
Les symboles de fusible -¥£=$ (fusible de type rapide) et/ou -§—=— (fusible de type lent) sur CCI indiquent que les
piéces de remplacement doivent avoir la méme désignation.
r(FOR USA MODEL ONLY)
1.SAFETY PRECAUTIONS z
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 60Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5mA.
Reading should
Teaage | not be above
Device
0.5mA
under
test
{
Test all
exposed metal
surfaces
@ | Also test with
plug reversed
(Using AC adapter
plug as required)
AC Leakage Test
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 appli-
ance have special safety related characteristics. These
are often not evident from visual inspection nor the
protection afforded by them necessarily can be ob-
tained by using replacement components rated for vol-
tage, 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 ad-
ditional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.

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.
©
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 and Packing
Mark
No.
Description
Parts
No.
Mark
No.
Description
Parts
No.
A
1
TRANSISTOR
(Q3)
2SA1302
15
REAR
PANEL
(MTL)
ANC2166
(Except
VSX—403)
(For
VSX—453/KUXJ,
KCXJ
and
A
1.
TRANSISTOR
(Q3)
2SA1804
VSX
—463S)
(For
VSX
—-403)
15
REAR
PANEL
(MTL)
ANC2167
A
2
TRANSISTOR
(Q4)
2841302
(For
VSX
—453/SDXJ)
(Except
VSX-
403)
15
REAR
PANEL
(MTL)
ANC2168
A
2
TRANSISTOR
(Q4)
2SA1804
(For
VSX-403)
(For
VSX—403)
NSP
16
HEAT
SINK
ANH1472
A
3
TRANSISTOR
(Q6)
2SA1265N
(Except
VSX—
403)
(Except
VSX—
403)
NSP
16
HEAT
SINK
ANH1461
A
3
TRANSISTOR
(Q6)
2SA1804
(for
VSX—403)
(For
VSX—403)
17
INSULATOR
(Except
VSK—403)
AMR2592
A
4
POWER
TRANSISTOR
8)
2SA1803
18
|
VOLUME
HOLDER
(MTL)
ANG1901
A
5
TRANSISTOR
(Ql)
2803281
19
INSULATOR
(Except
VSX—403)
PNW1912
(Except
VSX-403)
NSP
20
PCBSUPPORT
AEC1013
A
5
TRANSISTOR
(Ql)
25C4689
(For
VSX—403)
NSP
21
PCB
HOLDER
AECI583
22
SHEET
(Except
VSX—403)
AEE1014
A
6
TRANSISTOR
(Q2)
2SC3281
2300
ee
(Except
VSX~403)
24
PCB
MOLD
(PP)
AMR2533
A
6
_
TRANSISTOR
(Q2)
2SC4689
25
PCB
MOLD
(PP)
AMR2534
(For
VSX--403)
ab
7
TRANSISTOR
(Q5)
2SC3182N
26
SPACER
(PLS)
AMR2544
(Except
VSX-403)
27,
SCREW
ABA~298
A
7
TRANSISTOR
(Q5)
28C4689
28
SCREW
ABA1018
(or
VSK—403)
29
SCREW
ABA1024
A
8
POWER
TRANSISTOR
(Q7)
2SC4688
30
SCREW
(STEEL)
ABA1053
A
9
POWER
TRANSFORMER
(T1)
ATS1521
(or
VSX—453/KUXJ,
KCXJ
and
31
SCREW
ABAIM7
VSX—463S)
32
SCREW
ABA1082,
A
9
POWER
TRANSFORMER
(Ti)
ATS1522
33.
SCREW
BBZ30P080FZK
(For
VSX
—453/SDXJ)
34.
SCREW
BCZ30P080FMC
a
9
POWER
TRANSFORMER
(T1)
ATS1523
35
SCREW
BPZ26P080FMC
(For
VSX—403/KUXP
A
9
POWER
TRANSFORMER
(T1)
ATS1549
36
«NUT
NK90FUC
(For
VSX—403/KCXJ)
37
FRONT
PANEL
(PLS)
AMB2229
A
10
FUSE
(4A/125V,
FU8)
REK1066
(For
VSX~-453)
37
FRONT
PANEL
(PLS)
AMB2487
A
11
FUSE
(4A/125V,
FU4)
REK1066
(For
VSX~463S)
A
12
FUSE
(8A/125V,
FUL)
AEK1002
37
FRONT
PANEL
(PLS)
AMB2230
(For
VSX—453/KUXJ,
KCXJ
and
(For
VSX—403)
VSX~-463S)
38
DISPLAY
PANEL
(PLS)
AAK2558
A
12
FUSE
@A/125V,
FU])
REK1066
39
SASH
(PLS)
AAK2445
(Bor
VSX~453/SDXJ)
40
INDICATER
PANEL
A
AAK2450
A
12.
FUSE
(6.3A/125V,
FUL)
REK1069
(For
VSX—
403)
41
INDICATER
PANEL
B
AAK2451
A
13
AC
POWER
CORD
ADG1152
42
SASH
S
(PLS)
AAPI368
or
VSX—453/KUXJ
and
43
NAME
PLATE
PAM1608
VSX—403/KUXJ)
44
LED
LENS
PNW2019
A
13.
AC
POWER
CORD
ADG1126
45
ROUND
KNOB
L
(PLS)
AABI340
(For
VSX—453/KCXJ,
‘VSX-463S/KCXJ
and
46
ROUND
KNOB
M
(PLS)
AABI341
VSX-403/KCXJ)
47
FUNCTION
BUTTON
(PLS)
AAD2412
A
13
AC
POWER
CORD
ADG1129
48
HINGE
BUTTON
A
(PLS)
AAD2413.
(For
VSX~453/SDXJ)
49
HINGE
BUTTON
B
(PLS)
AAD2414
NSP
14
CHASSIS
(MTL)
ANAI212
50
SPEAKER
BUTTON
(PLS)
AAD2416

Mark No. Description Parts No. Mark No. Description Parts No.
51 TACT BUTTON (PLS) AAD2417 76 DOL. PRO. MOD. ASSY AXQ3123
52 POWER BUTTON (PLS) AAD2418 7
53 BONNET CASE (MTL) ANE1431 A 78 ‘VOLTAGE SELECTOR (Si) AKX—507
54 OPERATING INSTRUCTIONS ARB1466 (VSX —453/SDXJ only)
(English) A 79 VOLTAGE SELECTOR (S2) AKX1004
(For VSX~453/KUXJ and SDXJ) (VSX—453/SDXJ only)
54 OPERATING INSTRUCTIONS ARB1467 80 65 LABEL ORW1069
(English) (KUX]J type only)
(or VSX—403/KUXJ and KCX])
55 REMOTE CONTROL UNIT AXD1386 A 81 FUSE (4A/125V, FU2) REK1066
(CU—VSX085) (VSX—453/SDXJ only)
(Except VSX—463S) NSP 82 FUSE HOLDER AKR1005
55 REMOTE CONTROL UNIT AXD1387 (VSX—453/SDXJ only)
(CU—VSX083) (For VSX—463S) 83 SCREW (VSX—453/SDXJ only) ABA1009
84 OPERATING INSTRUCTIONS ARE1299
56 FM ANTENNA ADH1017 (English and French)
NSP 57 BATTERY (R6P, AA) AEX—010 (For VSX—453/KCXJ and
(Except VSX—463S) VSX—463S/KCXJ)
NSP 57 BATTERY (LR6, AA) AEX1007 84 OPERATING INSTRUCTIONS ARC1454
(For VSX—463S) (French) (For VSX—403/KCXJ)
58 LOOP ANTENNA (L8041) ATB1009 85 OPERATING INSTRUCTIONS ARCi453
59 FRONT PAD (PS) AHA1665 (Chinese and Spanish)
60 REAR PAD (PS) AHA1666 (VSX—453/SDXJ only)
61 PACKING CASE AHD2678 86 FOOT AEC1505
(Por VSX—453/KUXJ and KCXJ) (For VSX —403/KUXJ and KCXJ)
61 PACKING CASE AHD2680 87 LEAD WIRE (J13) ADX1915
(For VSX—-453/SDXJ) 88 SCREW ABA1054
61 PACKING CASE AHD2679 .
(For VSX-4638) @ Packing
61 PACKING CASE AHD2681 84 85
(For VSX—403)
62 PACKING SHEET AHG1210
63 BATTERY COVER AZA7031
(except VSX—463S)
64 MOTHER ASSY AWZ5376
(For VSX~453/KUXJ, KCXJ and
VSX—463S)
64 MOTHER ASSY AWZ5443
(For VSX~455/SDXJ)
64 MOTIER ASSY AWZ5377
(For VSX-~ 403)
65 FRONT ASSY AWZ5375
(Except VSX—453/SDX))
65 FRONT ASS AWZ5442
(Por VSX—453/SDXJ)
66 REG. ASSY AW25373
67 FUNC ASSY AWZ5379
68 POWER. AMP ASSY AWZ5385
(Except VSX—403)
68 POWER. AMP ASSY AWZ5387
(For VSX—403)
69 VIDEO ASSY AWZ5381
70 VOL ASSY AWZ5386
71 TONE ASSY AWZ5382
72 B,C. SP ASSY AWZ5566
(Except VSX—403)
72 B,C. SP ASSY AWZ5567
(For VSX—403)
73 FM/AM TUNER MODULE AXQ3112
74H. PHNE, SP. SW ASSY AWZ5384
75 TRANS ASSY AWZ5380
61

@ Exterior
FRONT PANEL SECTION
: 35
Note 1: Screws adjacent to ¥ mark on the. product
are used for disassembly.
Note 2 : Used for heat sink.
:
A
—
:
B
—
27
°
Cc
5
S>
4—8
Oey
oe
For
VSX~403
SS
°
;
L:
<
SS
7
")
:
&
7}
lied
Sra
29
a“<
;
"|"
Except
VSX—403
VSX—453/SDXJ
Only
D
?
17
!VSx—453/SDxJ
D
For
VSX—403}
Only
a
_|
Except
VSX—403
7
Except
VSX~403
KUXJ
type
Only

3. SCHEMATIC AND PCB CONNECTION DIAGRAMS
3.1 OVERALL SCHEMATIC DIAGRAM
posi
@
sour cour
~12V
1@ O@
om
O®OO@
REG assy
(> SCH-4)
awzsa7a) 2
Fey
a
~iaV
pentane ONDE-UTEGE STS
ns200
FM/AM
TUNER
MODULE
(AXa3112)
(SCH-2)
reenter
@BBOBOODOOOO®
|
sTeregd
ont
+1
TUNER
WOTE
ONO
Leh
oud,
Rob
SO08
DATA
ce
Ne
No
GOeE
DOOPOO®D
KD sev -12v
weiav H-cND
Oj
"REAR
12v RC SP
assy
(AWZ5376 : VSX-453/KUXJ, KCXJ,
(AWZ5443 : VSX--453/SDXJ)
(AWZ5977 : VSX-403)
‘eooiat
POWER
BAND FM/AM
MPX MODE
MEMORY
TUNE -
TUNE +
‘SIMULATED STEREO
DOLBY 3CH LOGIC
DOLBY PRO LOGIC
SIMULATED SURROUND
STUDIO.
#0
DIRECT ACCESS
TAPE
PHONO
TUNER
SPEAKERS A ON/OFF
SPEAKERS B ON/OFF
YSSHW8-25-35/35
XEETEKG) } 465566 60008
exe enone
OKO) (0) (o}
(rc) (0) SOS
ooo
MOD. VIDEO assy
DOL. PRO. MOD. assy beeen
(PSCH-3)
af
A
POWER TRANSFORMER
TH ATS1922,
$1 VOLTAGE SELECTOR FRONT assy
% OTHERS: ting ph (VSX~ 453/SDXJ_ ONLY) $801
NOTE FOR SCHEMATIC DIAGRAMS SccabnonrOtie See eae ert palak ACTIOV/120-127Vvi220v/240v S802
A it: p:pF or WF unless otherwise noted. ie . " $803
1. When ordering service parts, be sure to refer to Ratinie! capacitor (nl vstane WV) cnlocs otherwise ‘+ The dh metk found on some component parts indicates the
| ore : niatwise voted portance of the safety factor ofthe parts. Therefore, when re: S2_ VOLTAGE SELECTOR $804
PARTS
LIST
of
EXPLODED
VIEWS”
or
"PCB
Rated
voltage:
SOV
except
for
electrovviic
capacitors.
Placing,
be
sure
to
use
parts
of
identical
designation.
(VSX~
453/SDXJ_
ONLY)
‘$805
8, SCH—D ON THE SCHEMATIC DIAGRAM: AC110-127V/220-240V ‘S806
2. Since these are basic circuits, some parts of them or the yninit or BH inloss ofeivrles Noted '* SCH—D indicates the drawing number of the schematic dia- ‘$807
‘values
of
some
components
may
be
changed
for
improve-
6.
VOLTAGE
AND
CURRENT:
‘gram.
(SCH
stands
for
schematic
diagram.)
MOTHER
assy
$808
Gad, Sonat voltage ota vou 9. SWITCHES (Underline indicates switch postion: 9k/10k 8809
aii es os Sevag spans trans consort (VSX- 459/S0%) ONLY) se10
af flue in is OC voltage at rated power.
Rated power: 1/AW, 1/6W, 1/6, 1/10W unless otherwise 4, g Value in ; Sain on
tah abi eh BiG tals donie oc BFR as Dc current at no input signal unless otherwise noted. S813. #2
noted. 8814 #3
VSX~453, S815 #4
vsx-4635 | VSX-403 S816 *5
FRONT
assy
$817
#6
(AWZ5375 : VSX-453/KUXJ, KCXJ, Ot | 2SC5Z01 4] 28CabeS: $8187
VSX-4838, VSX~403) ‘a2 | 2scaze1 | 2scaee9 S819 *8
(awzsaaa : VEX-459/80X) cE [-senrs0a I osavene 8820 #9
on | 2501302 | 25ar804 be
a3 . 5} 25C3182N | 2SC4689 ‘$823
8824 VOR
OP OD HOODOO GOBHOD) Se Shi ZEN | -ZeATa0e $825
af [3 a7| ascases | 2scace0 3826
08 | 2S5A1603 2SA1803 $827 LD
$828 CD
fg tr tee ey ‘$829
‘$830
8 A (Ole H.PHNE, SP. SW assy
g ae —?c [Ol\e H.PHNE, SP.
i eter aats tel’ fawzsae9) PRE, SP, SW assy
:
=—O|f
(PSCH-3)
2 Io ‘A POWER TRANSFORMER
5 < a oat TraTsisat
aa POWER. AMP assy (15x 459KUXd, KOKA, VSX-469)
S
5
(AWZ5385
:
VSX-483,
VSX-4638)
,.~
DOOOOOOG
Arete
(VeReadeROR
el
(AWZ85387
:
VSX-403}
5.
vvos-ss0-
J
J
J
Id
Jy
° Kok kK Kj a
© ie 3 <9 Aono
la Aas 2 Jo], rus. Fur rexsose
lo 10 pono -io-e : Le|*
a
OP
POOOOAL
OOF
2
©)
TRANS
assy
slo} si 1} (AWZ5380)
do} } (AWZ5566 : VSX-453, VSX-4635) lo} (>SCH-3)
lol pre sem” | (AWZ5567 : VSX-403) 1| ia. . cia {
I;
1
YJbHW6-25~35/35
SCH—1
OVERALL SCHEMATIC DIAGRAM
OVERALL SCHEMATIC DIAGRAM
SCH-—1

3JUGOM AaMUT MA\MA S.€
MA
AUWSTVA
JAVIMAST
Ma
3JUGOM AaMUT MA\MA Miia
tT TYUO yees ASHTOM oT
© This diagram is viewed from the foil
side.
Tosa@AV
SOS8O1
soseAV
26101
£0830
06217 1C6201
Q6201 6202

3.2 FM/AM TUNER MODULE
AM FM
ANTENNA ANTENNA
TERMINAL TeRMINAL FM/AM TUNER MODULE
A A
NOTE FOR PCB DIAGRAMS:
1 careers in PCB diagrams match those in the schematic
rams.
2. Acomparison between the main parts of PCB and schematic
diagrams is shown below.
Symbol in PCB] Symbol in Scherhatic
pa yma Part Name
504.
Fe erin a
Transistor
3
ae
eit
st
8
PROG
Diode
oes D203
on >
B
+
Capacitor
8
513 (Polarized)
C513
& 3. The transistor terminal marked with E or C_ shows the emitter.
8 44. The diode terminal marked with® orC=shows cathode side.
8 5. The capacitor terminal marked with © or L_ shows negative
ove terminal.
bs
= —
58
88
Cc c
<
ale
ais
8
g
‘
8
|__
To
MOTHER
assy
CN711
=o —
B
8
2
B
8
3
g
bls
D 8 ip)
@This diagram is viewed from the
mounted parts side.
10

IFM
signal
route
SDIAM
signal
route
FM/AM TUNER MODULE
CAXQ3112)
FM F.E.
IF OUT
A
High
avai
ee
ah
oe
A
aero2
:
tas
MIX AMP
ue
4
N.C.
37
2
ie
nines
N.C.
|
FW
90
ADJ
Ss
—e]
ce
—=
ate
72)
3
—
i
cm
Haye
GND
CH
1eb201
:
FN/AN
IF
DETEcTrON-
MONO
FM
STEREO
DECODER
MUTE
A TUNE
7
¢
qT
+12V
i
h
a7”
+5V
7
eee
Se
STEREO
asios
+
Leica
A
8
BUFFER
ANP
Fond:
i
y= es
ox
Se
evant
0y
7
To
MOTHER
assy
CN711
cleoe
s
cI
mi
(>SCH-4)
fw
"
Ei
rease
Sorter
z
Tritt
06234,08256
+
AccIOSI
=A
—
oNo
ob285
:
AcciOSe-A
—
i
4
dL FW LE. POWER SW ean
‘
abet?
+
FORCED
Mono
oRIVE
FM
c
c
a oe
venions
:
Sa
Tow
fw
her
ose
se
Se
oo
EE
|
Bas
58
NOTE:
VOLTAGE
AND
CURRENT
vas
<
Cin¥]
:
Signal
voltage
at
FM
1kHz,
100%
MOD.
D
aseene-ne,
He
LJor-v:
ok
DC
voltage
(V)
at
no
input
signal
unless
otherwise
noted.
Value
in(
_)
is
DC
voltage
at
rated
power.
lese02
:
PLL
1c
©
mA
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