Pioneer VSX-405 User manual

Wd) PIONEER’
The Art of Entertainment
Service
Manual
AUDIO/VIDEO STEREO RECEIVER
VSX-405
VSX-305
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type Power Requirement Remarks
VSX-405 VSX-305
Pee [0 | 0 [www SSC*SSCCSCSC~—“SC‘“‘~S~*
OA 0
ORDER NO.
RRV1467
CONTENTS
1. SAFETY INFORMATION 0.00... csscecceseeseessenseeeeeeses 2
2. EXPLODED VIEWS, PACKING AND PARTS LIST........ 3
3. BLOCK DIAGRAM ............ccsecssssesseeteestessreneceneeenseeeesnens 9
4. SCHEMATIC AND PCB CONNECTION
DIAGRAMS. .... oo. eeececetecseeseesensseeseeeseeenessesenteneeneeens 11
5. PCB PARTS LIST 0... eccesecesessseneseeeeseetseeeneeeeenenaes 35
6. ADJUSTMENTS. .0.... cece eeeesesseteeceeeseeeneeeeeeeetaensees 40
7. IC INFORMATION ..... ccc ete ceeeteeereneeteeeeneeneenerenes 42
8. FLINFORMATION .......c cc cceccceeeeeeessseeeneeeseeteneaes 44
9. DISASSEMBLY ..... ccc cee ceesseeereeeeeasesreeseeneeeneenee 45
10. PANEL FACILITIES oo... cece ccssereeeesesseecreeereseenneeees 47
11. SPECIFICATIONS 00... cece ccecseecseecceeesererssenneseenes 51
PIONEER ELECTRONIC CORPORATION = 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE, INC. 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 T-SSM JAN. 1996 Printed in Japan

VSX-405, VSX-305
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 252495).
When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotécted skin contact with
the solder. Also, when soldering do not inhale any smoke or fumes produced.
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse
symbols
-=—
(fast
operating
fuse)
and/or
-#-—%
(slow
operating
fuse)
on
PCB
indicate
that
replacement
parts
must be of identical designation.
REMARQUE
(POUR MODELE CANADIEN SEULEMENT)
Les
symboles
de
fusible
-§—H
(fusible
de
type
rapide)
eou
-§E—R
(fusible
de
type
lent)
sur
CCi
indiquent
que
les
pieces de remplacement doivent avoir la méme désignation.
(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 60Hz outlet and turn the AC power switch on. Any
current measured must not exceed O0.5mA.
Reading should
Ceakage | %0' be above
current | 0.5mA
lester
Device
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
OUFLINED 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.

VSX-405, VSX-305
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
parts.
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.
2.1 PACKING
@ CONTRAST OF VSX-405/KUXJ, KCXJ, VSX-305/KUXJ AND KCXJ
VSX-405/KUXJ, KCXJ, VSX-305/KUXJ and KCXJ have the same construction except for the following:
Symbol & Description VSX-405 VSX-305 Remarks
Packing Case AHD7268 AHD7268 AHD7263 AHD7263
Warranty Card ARY1051 ARY1075 ARY1051 ARY1075
Operating Instructions (French) Not Used ARC7104 Not Used ARC7104
@ PARTS LIST FOR VSX-405/KUXJ
Mark No. Description Part No.
1 Operating Instructions (English) ARB7065
2 Remote Control Unit AXD7083
(CU-VSX105) 1 3 5 12 13
3 FM Antenna ADH1017 KC model only
NSP 4_ Battery (R6P, AA) VEM-013 S ( © < es
5 Loop Antenna ATB7004 \ /
6 Pad Side A AHA7119
7 Pad Side B AHA7120
8 Packing Case AHD7268
9 Packing Sheet AHG1218
10. _ Battery Cover AZA7123
11 Sub Pad AHA7051
NSP 12. Warranty Card ARY1051
13 se eee

VSX-405, VSX-305
2.2 EXTERIOR
@ CONTRAST OF VSX-405/KUXJ, KCXJ, VSX-305/KUXJ AND KCXJ
VSX-405/KUXJ, KCXJ, VSX-305/KUXJ and KCXJ have the same construction except for the following:
Power Transformer (T1) ATS7108 ATS7109 ATS7112 ATS7113
Rear Panel ANC7341 ANC7388 ANC7337 ANC7389
Front Panel AMB7334 | AMB7334 | AMB7329 | AMB7329
MOTHER Assy AWZ8053 | AWZ8053 | AWZ8056 | AWZ8056
@ PARTS LIST FOR VSX-405/KUXJ
Mark No. Description Part No. Mark No. Description Part No.
A 1 Power Transformer (T1) ATS7108 36 REG. Assy AWZ8067
A 2 Fuse (1A, FU3) REK1075 37 FLAND UCOM Assy AWZ8060
A 3 Fuse (1A, FU4) REK1075 38 SP.SW AND H.P Assy AWZ8068
A 4 Fuse (6.3A, FU1) REK1085 39 Screw BCZ30P080FZK
A 5 AC Power Cord PDG1015 40 Screw ABA7019
6 VIDEO Assy AWZ8066 41 Screw BBZ30P080FZK
NSP 7 ~~ Chassis ANA7042 42 Screw BBZ30P200FMC
8 Rear Panel ANC7341 43 Screw BPZ26P080FMC
9 Foot AEC1505 NSP 44 Washer AEE7002
NSP 10 ~—- Binder Z09-BK1 45 Screw ABA7009
11 PCB Support AEC1581
NSP 12. BINDING Assy AWZ8370
13 Cord Stopper CM-22C
14. PCB Mold AMR2533
15 ST. IND. Assy AWZ8065
16 FRONT SP. Assy AWZ8080
17 Front Panel AMB7334
NSP 18 PRIMARY Assy AWZ8368
19 ‘FL Panel AAK7237
20 ee eee
21 +Name Plate PAM1608
22 Round Knob L AAB7082
23 Round Knob S AAB7083
24 Push Button AAD7282
25 ~~‘ Function Button AAD7281
26 LED Lens PNW2019
27 ~Power Button AAD7278
28 Hinge Button A AAD7279
29 Hinge Button B AAD7280
30 ee eee
31 Bonnet Case ANE7102
32 FM/AM TUNER MODULE AXQ1002
33. MOTHER Assy AWZ8053
34 VOL. Assy AWZ8078
35. TRANS Assy AWZ8072

VSX-405, VSX-305
Exterior
NOTE: Screws adjacent to WV mark on the product
are used for disassembly
Refer to “2.3 POWER BLOCK”
POWER BLOCK
Note
*1:
Screw
for
fixing
the
headphone
jack.

VSX-405, VSX-305
2.3 POWER BLOCK
m@
CONTRAST
OF
VSX-405/KUXJ,
KCXJ,
VSX-305/KUXJ
AND
KCXJ
12
VSX-405/KUXJ,
KCXJ,
VSX-305/KUXJ
and
KCXJ
have
the
same
construction
except
for
the
following:
aan
12 |
Symbol
&
Description
VSX-405
VSX-305
Transistor
(Q2)
2SC5200
2SC5200
2SC5198
2SC5198
Transistor
(Q1)
2SC5200 2SC5200 2SC5198 2SC5198
Transistor
(Q11)
2SC5200
2SC5200
2SC5198
2SC5198
Transistor
(Q14)
2SA1943
2SA1943
2SA1941
2SA1941
Transistor
(Q4)
2SA1943
2SA1943
2SA1941 2SA1941
Transistor
(Q3)
2SA1943
2SA1943
2SA1941
2SA1941
Transistor
(Q13)
2SA1943
2SA1943
2SA1941
2SA1941
Transistor
(Q12)
2SC5200
2SC5200
2SC5198 2SC5198
AMP
Assy
AWzs8074
|
AWZ8074
|
AWZ8075
|
AWZ8075
A
A
A
A
A
A
A
A
@ PARTS LIST FOR VSX-405/KUXJ
Mark No. Description Part No.
A 1 Transistor (Q2) 28C5200
A 2 Transistor (Q1) 2S8C5200
A 3. Transistor (Q11) 2SC5200
A 4 Transistor (Q14) 2SA1943
A 5 Transistor (Q4) 28A1943
A 6 Transistor (Q3) 28A1943
A 7 Transistor (Q13) 28A1943
A 8 Transistor (Q12) 28C5200
9 Sheet AEE1014
NSP 10 = Radiator ANH7037
1+ AMP Assy AWZ8074
12. Screw BBZ30PO80FZK
13 Screw ABA1037

3. BLOCK DIAGRAM
AUDIO
TUNER
ANT
1C202
PHONO
O
co C———_————-0
LD/DVD G——_————_o
VCA/TAPE1 PLAYOQO—-~_O0
VCAYTAPE1 REC @———_—-o
TAPE2PLAY CG
TAPE2 REC CS
: LDIDVD G—o
; VCRIN © (C1501
LA7952
: OUT S
: MONITORG
: OUT
TC9164AN NJM4558D-D
OF >
Reh
11101
NJW1102FG1
{C1102
NJU 9702D
PRO-LOGIC
SURROUND
BLOCK
Rech
IC826
PDG172A
TONE BARANCE
NJM4558D-D
IC
UPC4570C
POWER AMP
ST +5V
GND
UB TRANS
VSX-405, VSX-305
10

VSX-405, VSX-305
4. SCHEMATIC AND PCB CONNECTION DIAGRAMS
4.1 OVERALL SCHEMATIC DIAGRAM
ST. IND. ASSY
AWZ8065
SP SW AND H.P ASSY
| 832
aa
AWZ8068
\ ares Kaera aids
(SCH-5)
Nin
oi N
are
VOL. ASSY 4P 150 E
AWZ8078 FL AND UCOM ASSY
(—>SCH-8) AWZ8060
(—SCH-4)
|
REG ASSY
AWZ8067
ersonte)
9g
J6
E
car)
AMP
ASSY
a
Ya
AWZ8074
(VSX-405)
S
952
|
TRANS
ASSY
tv
Kaxt1
926)
Kaxt1023)
AWZ8075
(VSX-305)
x
mes
a
aKT1079
|AWZ8072
|
Lal
Lal
ina)
bod
607
(=>
SCH-7)
°
2
a
(>
SCH-5)
1 [e) 1 ]
|
acta
7P_
200)
|
AKT
1083
VSX—405/KU ATS7108
VSX-405/KC ATS7109
22
N
s | 9 Pa VSX-305/KU ATS7112
nal lon VSX-305/KC ATS7113
a | | =
Qy oO
ive) WW}
N414
N43
N410
426
i=
s=
aa
Pe
iMaLy
ASSY
oO
6
fin
fe
=
x
ao
a x tlis 4 Z|
MOTHER ASSY (1/3)(2/3(3/3) / \ “| /8 in :
AWZ8053
(VSX-405)
{
}
a
AWZ8056 (VSX-305) =e \ 5 H
(> SCH-2,3,6) at See qq
= eo
: RN "0 =
i \ i)
\ iy E —
Soeur
a}is
. 404 KN4O1 KNab2
nu
a
AKT1076
roy]
nia
J21
J22
Ss ba L N
oO
be
See
es
o8
xs
2 ye
a ee
zest
>
= [Akt 076
VIDEO ASSY Seat F A
P. ASSYF———-= ———
AWZ8066 FRONT S [ AKT! 281 | AC POWER CORD
(ScH5) pin AC120V/60Hz
11 OVERALL SCHEMATIC DIAGRAM
NOTE
FOR
SCHEMATIC
DIAGRAMS
(Type
1A)
1.
When ordering service parts, be sure to refer to
“PARTS LIST of EXPLODED VIEWS” or “PCB
PARTS LIST”.
. Since these are basic circuits, some parts of them or the
values of some components may be changed for improve-
ment.
. 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): +2%, (K): +10%, {M): +20% or +5% un-
less otherwise noted
. CAPACITORS:
Unit. p.pF or pF unless otherwise noted
Ratings: capacitor (uF)/ voltage (V) unless otherwise noted.
Rated voltage 50V except for electrolytic capacitors.
. COFLS:
Unit: m'mH or pH unless otherwise noted
VOLTAGE AND CURRENT:
(_V) : Signal voltage at rated output
Y or+ V:
DC voltage (V) at no input signal unless otherwise noted.
Value in( ) 1s DC voltage at rated power.
© mA or ~~ mA:
DC current at no input signal unless otherwise noted
OTHERS:
© @ or @: Adjusting pont.
° 3 : Measurement point.
© The A mark found on some component parts indicates the 1m-
portance of the safety factor of the parts. Therefore, when re-
placing, be sure to use parts of identical designation.
. SCH-C) ON THE SCHEMATIC DIAGRAM.
© SCH—O indicates the drawing number of the schematic dia-
gram. (SCH stands for schematic diagram.)
. SWITCHES (Underline indicates switch position):
ST IND. ASSY
$876 - POWER STANDBY/ON
$877 : SFC MODE
$878 DOLBY PRO LOGIC
FL AND UCOM ASSY
$825 . STATION +
$826 : STATION -
$827 : CLASS
$829 - MPX MODE
S830 : TUNING +
$831 : TUNING —
$832 . FM/AM
$835 - TAPE 2 MONITOR
S836 VCR/TAPE 1
$837 . SUPER BASS
S839 MEMORY
$840 . CD
S841 - LD/DVD
$842 . TUNER
$843 : PHONO
SP SW AND HP. ASSY
S701 . SPEAKER A OFF/ON
$702 : SPEAKER B OFF/ON
OVERALL SCHEMATIC DIAGRAM

VSX-405, VSX-305
]
4.2 MOTHER ASSY (1/3)
} | a ‘| a TO AMP ASSY
a ul ¥
z2 ak | as TO SP SW AND HP ASSY cNs0aGeSCH7) TO AMPASSY
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MOTHER
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(1/3)
|
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