Pioneer VSA-805S User manual

Y) PIONEER’
The Art of Entertainment
Service
Manual
AV DIGITAL-SURROUND AMPLIFIER
VSA-805S
THIS
MANUAL
IS
APPLICABLE
TO
THE
FOLLOWING
MODEL(S)
AND
TYPE(S).
ORDER NO.
RRV1473
| Model |
Power Requirement
_—_ 805S
CONTENTS
1.
DISASSEMBLY
«:-eseecceecceceee
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eens
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2
5.
PCB
PARTS
LIST
-ceesccceceecceteetee
ees
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34
2.
EXPLODED
VIEWS,
PACKING
6.
IC
INFORMATION
<::000s::220eeeceeeteeeereeeeees
39
AND
PARTS
LIST
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4
7.
FL
INFORMATION
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tees
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A
3. BLOCK DIAGRAM crveeseeeee tcc e cette ercetet eee eeeenes 10 8. REMOTE CONTROL UNIT
4. SCHEMATIC AND [CU-VSA027 (AXD7091)}-:::1-1:ceeeeeeeeeeeees 42
PCB
CONNECTION
DIAGRAMS
-:---
11
9.
PANEL
FACILITIES
«:---:000200sseeeeteteeeereees
47
10. SPECIFICATIONS emcee eee ence teeter eens sana necaes 49
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
FIs
AEP
obe
bites
Wiad

VSA- 805S
1. DISASSEMBLY
r—— CAUTION !
You will get an electric shock if you touch the Radiator (Heat-sink) when the AC power cord is
connected to the power source. Also, the Electrolytic Capacitor contains a charge even when
the AC power cord is unplugged, so the charge must be removed when the bonnet has been
taken off.
<Removing the Charge>
@ Connect the Radiator (top side) and either the Chassis or the Rear panel for 2 to 3 seconds with a Resistor of
more than 5W/10 Q.
@ Connect the +B lead on the J2 and either the Chassis or the Rear panel for 2 to 3 seconds with a Resistor of
more than 5W/10 Q2.
1
Round Kbob L
.1PS & FUNC ASSY
1. Remove the Bonnet case.
2. Remove the two screws ().
3.
4. Remove the four screws @) holding the PS & FUNC
Remove the screw @).
assy.
_Remove the Round knob L and remove the screw @
between the volume and the front panel.
. Remove the Vol. assy from the PS & FUNC assy.
.Remove the rear panel, and power block from the
chassis at the same time, according to the Fig. 1.
PS & FUNC Assy
Screw@
VOL. Assy
Screw @
Screw@
‘a
-
Power Block
Front Panel
Fig. 1 Chassis

VSA- 805S
1.2 POWER BLOCK
1. Remove the Bonnet case. Power Block
2. Remove the screw Q).
3. Remove the two screws @).
Screw@®
1.3 FL & UCOM ASSY
1. Remove the Bonnet case.
2. Remove the six screws).
3. Remove the Round knob L and remove the screw @)
between the volume and the front panel.
Remove the front panel from the chassis (watching out
for the claw on the front panel bottom).
.Remove the three round knob S (BASS, TREBLE,
BALANCE).
. Remove the screws in Fig. 2 and remove the FL &
UCOM assy.
Screw@
>
wm
an
Screw@
Round Knob L
Round Knob S Screw@
Screw@
<Location of the FL & UCOM Assy Fixing Screws>
FL & UCOM Assy
Fig. 2

VSA- 805S
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.
2.1 EXTERIOR SECTION
(1) CONTRAST OF VSA- 805S/HVXJ AND HYXJ
VSA- 805S/HVXJ and HY XJ have the same construction except for the following:
Symbol & Description R k
5 | AC Power Cord PDG1055 ADG1131
57 | Fuse (TSA/250V) PEK1003 Not used For AC Power Cord
(2) PARTS LIST FOR VSA- 805S/HVXJ
Mark No. Description Part No. Mark No. Description Part No.
A 1 Power Transformer (T1) ATS7069 36 REG. Assy AWZ8412
AN 2 Fuse (T1.25A : FU3, FU4) AEK1055 37. FL & UCOM Assy AWZ8319
3. Protection Sheet AHG7016 NSP 38 _ H.P. Assy AWZ7615
A 4 Fuse (T5A : FU!) AEK1061 39 Screw BPZ26PO60FMC
A 5 AC Power Cord PDG1055 40 Screw ABA1147
6 Flexible Cable (J14) ADD7018 41 Screw BBZ30PO80FZK
NSP 7 ~~ Chassis ANA7016 42 Screw BBZ30P200FMC
8 Rear Panel ANC7390 43 Screw BPZ26PO80FMC
9 TUNER CONECT Assy AWZ8403 NSP 44 Washer AEE7002
10 Leg Assy AMRI159 45 Screw BBZ30PO80FMC
11 PCB Support AEC1581 NSP 46 = Adhesive Double Coated Tape AEH1025
12. Rubber Spacer AEC7034 NSP 47 SPAssy AWZ7613
13. Cord Stopper AEC - 882 48 Pocket Holder Assy ANG7043
14. PCB Mold AMR2533 49 Door Hinge Arm L AMR7063
15 Hinge Button AAD7181 50 Screw ABA7007
16 Door Holder Assy ANG1855 51 PVC Sheet AEC7024
17 Front Panel AMB7349 $2 Push Rivet AEC7025
18 IR Filter AAK7123 53 Screw (for GND) ABA1047
19 Display Sheet AAK7253 54 Screw BBZ30PO60FMC
20 G.U.I. Lens AAK7154 55 DoorHinge ArmR AMR7064
21 ~=Name Plate PAM1608 NSP 56 PCB Holder ANG7040
22 Round Knob L AAB1390 A 57 Fuse (TSA/250V) PEK 1003
23. Round KnobS AAB1389 58 Door Plate ANG7032
24 Jog Knob AAB7048 59 Door Panel AAK7153
25
Function
Button
AAD7178
60
Screw
ABA
-
283
26 ~—‘Hlumi. Button AAD7179 61 = Slide Switch (S3) ASH-501
27 ~~“ Power Button AAD7180 62. “88-948
28 Pocket Lock AMR2587 63 eeee8
29 Coil Spring ABH7048 NSP 64 _ Binder RNE1277
30 Damper Assy AXA7025 65 TUNER TERMINAL Assy AWZ8321
31 Bonnet Case ANE7047 66 Shield Plate AEC7064
NSP 32 Lead Wire (JIS) ADX706S
33. PS & FUNC Assy AWZ8386
34 VOL. Assy AWZ7612
35 TRANS Assy AWZ7924

VSA- 805S
POWER BLOCK
Refer to “2.2 POWER BLOCK".
NOTE: Screws adjacent to YW mark on the product
are used for disassembly.

VSA~- 805S
2.2 POWER BLOCK
Fit body of transistor to hollow of Radiator.
(Lead of transistor must not touch radiator)
Fit parts No. side of transistor to radiator.
J2
=
o
ad
Fr
o 8 oO
PA
ce
FAN
Power Block J2 Dressing
J2
goes
through
the
slit
of
PCB
d
Thermistor (TH1)
Thermistor Lead
WA
Power Block J1 Dressing
J1 dressing catch on PCB of front side and
avoid J1 to rear side.
28
[Note 2| Caution of dealing with fan must not touch
the blade and the rotation axis cause of
3 ve
S precision parts.
Set side without fan guard facing out side Install fan motor to do right-down fan lead.
[Note 3] (The other side of parts No. side).

Parts List
Mark No. Description
| AMP Assy
2 AMP Assy 120W
A 3 Transistor (Q3)
A 4 Transistor (Q4)
5 eoeeee
6 eenreve
A 7 Transistor (Q11)
A 8 Transistor (Q12)
A 9 Transistor (Q1)
A 10 Transistor (Q2)
11 eooeee
12 eevee
A 13. Transistor (Q9)
A 14 Transistor (QIO)
A 1S Transistor (Q23)
A 16 Transistor (Q24)
AN 17 Transistor (Q33)
A 18 Transistor (Q34)
A 19 = Transistor (Q21)
Ay 20 Transistor (Q22)
A 21 ‘Transistor (Q31)
A 22 =‘ Transistor (Q32)
A 23.‘ Transistor (Q209)
A 24 ~~‘ Transistor (Q210)
A 25 Transistor (Q309)
A 26 ‘Transistor (Q310)
27 eeeeve
28 Fan Motor
NSP 29 Radiator
30 Exhaust Mold
31 Radiator Mold
32 Floating Rubber
33. Screw
34 Screw
35 = Serew
36 = Screw
Part No.
AWZ7756
AWZ8426
2SA1302
2SA1302
2SA1302
2SA1302
2SC3281
2SC3281
2SC3281
2SC3281
2SA1837
2SA1837
2SA1837
2SA1837
2SC4793
2SC4793
2SC4793
2SC4793
2SC1740S
2SC1740S
2SC1740S
2SC1740S
AXM7005
ANH7011
AMR7035
AMR7036
AEB7060
ABA - 283
ABA1037
BBZ30PO080FZK
ABA7026
VSA- 805S
2.3 PACKING
(1) CONTRAST OF VSA- 805S/HVXJ AND HYXJ
VSA - 805S/HVXJ and HY XJ have the same construction
except for the following:
VSA- 805S/|VSA- 805S
MAVXS MHYXS
Not used ARC7114
Symbol & Description
2 | Operating Instructions
(French/German/Italian/
Dutch/Swedish/Spanish/
Portuguese)
11 | Plug Sheet
(2) PARTS LIST FOR HVXJ TYPE
AHG7012 Not used
Mark No. Description Part No.
1 Operating Instructions ARB7074
(English)
2 eoeeee
3 Remote Control Unit AXD7091
(CU- VSA027)
NSP 4 Alkaline Dry Cell Battery AEX1007
(LR6, AA)
NSP 5 Waranty Card ARY7009
6 PadL AHA7060
7 PadR AHA7059
8 Packing Case AHD7286
9 Packing Sheet AHG7010
NSP 10 Poly. Bag AHG1217
11 Plug Sheet AHG7012
” \HYXJ Type
ye “72: Only

3. BLOCK DIAGRAM
VSA- 805S
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VSA~- 805S
4.
SCHEMATIC
AND
PCB
CONNECTION
DIAGRAMS
4.1
OVERALL
CONNECTIONS,
TUNER
TERMINAL
AND
TUNER
CONECT
ASSEMBLIES
NOTE
FOR
SCHEMATIC
DIAGRAM
(Type
1A)
PCB - 1 1. When ordering service parts, be sure to refer to
“PARTS LIST of EXPLODED VIEWS” or “PCB
PARTS LIST”.
PS & FUNC ASSY
CN701 2. Since these are basic circuits, some parts of them or the
values of some components may be changed for improve- Cc
ment.
FL
&
UCOM
a
TUNER
CONECT
ASSY
Me ede eed Ae oe ee
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):+2%, (K):+ 10%, (M): + 20% or +5%
unless otherwise noted.
4. CAPACITORS:
Unit: p:pF or F unless otherwise noted.
Ratings : capacitor (1 F) /voltage (V) unless otherwise noted. —
Rated voltage : 50V except for electrolytic capacitors.
GLAD > J805 m0
H.P. ASSY
eels
‘=> SCH — 4
AKT 1824 5. COILS:
TRANS ASSY Unit ; m:mH or H unless otherwise noted.
pl Shae!
(» 6. VOLTAGE AND CURRENT:
: Signal voltage at rated output.
Ld or +V:
DC voltage (V) at no input signal unless otherwise noted.
Value in( )is DC voltage at rated power.
@mA or «mA:
DC current at no input signal unless otherwise noted. D
40p
KM200SA2 REG. ASSY
WZ8412)
=> SCH — 4)
J14
7. OTHERS:
@@or@ _ : Adjusting point.
@ << : Measurement point.
@ The A mark found on some component parts indicates the im-
portance of the safely factor of the parts. Therefore, when replacing,
TUNER TERMINAL ASSY be sure to use parts of identical designation.
8. SCH - (1) ON THE SCHEMATIC DIAGRAM:
@ SCH- (indicates the drawing number of the schematic diagram.
(SCH stands for schematic diagram.)
CnN420
CN413
PS & FUNC ASSY
ig: Sen-s
2/2: %SCH-3
9. SWITCHES (Underline indicates switch position):
FL & UCOM ASSY
$901 : POWER STANDBY/ON
$902 : LOUDNESS
$903: A
soak 4 SPEAKERS
$905 : MUTING
$911 : DIRECT
$918 : VCR/TAPE 1
$919 : LD/DVD
$921 : PHONO E
$922 : TUNER
$923 : CD
$926 : SURROUND MODE
$927 : CENTER MODE
$941 : JOG DIAL
$942 : TAPE 2 MONITOR
VOL. ASSY
(AWZ761 2) CNBOS
(= SCH — 7)
J17 300
12p
Rosina
spans
v
tome)
AKC-083
NOTE FOR PCB DIAGRAMS:
1. Part numbers In PCB diagrams match those In the schematic
7 eo af: > tet es Ka aah ae diagrams. ‘
Supine ate - es t sa 3 < 2, A comparison between the main parts of PCB and schematic dia- —
tf
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Pb
Dinorame
Diagrams
PDG1055 : HVXJ TYPE
AKF -116 ADG1131 : HYXJ TYPE eer
60/60r ‘i (ANP7091- C) ik transistor:
Q' Qs04
@ This diagram is viewed from the mounted parts side.
@
The
parts
mounted
on
this
PCB
include
all
necessary
parts
for
i
several destinations. F
i
CN409
AKC1IO16-
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SP
ASSY
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For
further
information
for
respective
destinations,
be
sure
to
check
TUNER
TERMINAL
ASSY
TUNER
CONECT
ASSY
(AWZ8403)
“Hi
1
(AWZ7613)
=
with
the
schematic
diagram.
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(AWZ8321)
(*SCH-4)
rig
(Polarized)
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TERMINAL
ASSY
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terminal
marked
with
©
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negative”
TUNER
CONECT
ASSY
TUNER
CONECT
ASSY
|
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VSA- 805S
4.2 PS & FUNC ASSY (1/2)
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ASSY
(1/2)
-
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ASSY
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CN202
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This
diagram
is
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from
the
mounted
parts
side.
@
The
parts
mounted
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PCB
include
all
necessary
parts
for
several
destinations.
For further information for respective destinations, be sure to check
with the schematic diagram.

4.4 H.P., SP AND REG. ASSEMBLIES
PS & FUNC ASSY (1/2)
CN414 (=SCH - 2)
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VSA- 805S
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@ This diagram is viewed from the mounted parts side.
@ The parts mounted on this PCB include all necessary parts for
several destinations.
For further information for respective destinations, be sure to check
with the schematic diagram.
22

VSA-~- 805S
4.5 FL & UCOM ASSY
FL & UCOM ASSY
SCH-5
23
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@ This diagram is viewed from the mounted parts side. @ The parts mounted on this PCB include all necessary parts for
several destinations.
For further information for respective destinations, be sure to check
with the schematic diagram.
26

VSA- 805S
4.6 AMP ASSY AND AMP ASSY 120W
AMP ASSY 120W (AWZ8426)
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VSA- 805S
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©
This
diagram
is
viewed
from
the
mounted
parts
side.
@
The
parts
mounted
on
this
PCB
include
all
necessary
parts
for
several destinations.
For
further
information
for
respective
destinations,
be
sure
to
check
with the schematic diagram.
30

VSA- 805S
4.7 TRANS AND VOL. ASSEMBLIES
e NOTE FOR FUSE REPLACEMENT
CAUTION — FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ONLY WITH SAME TYPE AND RATINGS ONLY.
DYY10- 200- 2651
J3q CNS
1cee4
TAGAORS
10604: VOLUME MOTOR CONTROL
SIGNAL ROUTE
wi ; AUDIO SIGNAL ROUTE
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VSA- 805S
PCB-6
PS & FUNC ASSY PS & FUNC ASSY
CN413 CN406
TRANS ASSY
885 804 ONLY
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POWER TRANSFORMER
AMP ASSY 120W
VOL ASSY CN203 PS & FUNC
AMP ASSY 120W ASSY
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VR601
Q602 — Q605
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Q691 —Q693
(ANP7090- E)
@ This diagram is viewed from the mounted parts side.
@ The parts mounted on this PCB include all necessary parts for
several destinations.
For further information for respective destinations, be sure to check
with the schematic diagram.
33