Pioneer VSX-4000 User manual

W) PIONEER
Service
CIRCUIT DESCRIPTIONS
REPAIR & ADJUSTMENTS | = nee ORDER NO.
i== = ARP1243-A
AUDIO/VIDEO STEREO RECEIVER
VSX-4000
(BK)
MODEL VSX-4000(BK) COMES IN TWO VERSIONS DISTINGUISHED AS FOLLOWS:
Power requirement Export destination
AC120V only : U.S.A and Canada
AC110V, 120V, 220V, 240V (Switchable) U.S. Military
e This service manual is applicable to the KUC and S/G types.
e As to the S/G type, please refer to pages 32.
e As to the circuit descriptions, please refer to the VSX-5000(BK) service manual (ARF1241).
CONTENTS
1. SAFETY INFORMATION ............... 2
2. EXPLODED VIEW AND PARTS LIST....... 3
3). -PAGKING .s bccc0s te miwaieiowe wa ne ee ee 6 6
4. P.C. BOARDS CONNECTION DIAGRAM..... 7
5. SCHEMATIC DIAGRAM................ 15
6. ELECTRICAL PARTSLIST.............. 23
7, ADJUSTMENTS. «2 sceeedeebee seca e aes 27
8. REMOTE CONTROL UNIT.............. 29
9 FOR SIG TYPE <3. scceeewn se see ce eaes 32
ER A
PIONEER ELECTRONIC CORPORATION 4-1.Meguro 1-Chome, Meguro-ku, Tokyo 153, Japar
PIONEER ELECTRONICS SERVICE INC. P.O. Box 1760,Long Beach, California 80801 U.S.A.| TEL: [phone]
PIONEER
ELECTRONIC
(EUROPE)N.V.
Keetbergilaan
1.2740
Beveren.
Belgium
TEL:
03/775-28-08
PIONEER ELECTRONICS AUSTRALIA PTY.LTD. 179-184 Boundary Road, Braeside, Victoria 3195, Australia
TEL:
(03)
580-9891
1
°
F
SI@ AUG. 1986 Puted ‘nm Japan

WA-> Cr-Tolelel(=) 6)
1. SAFETY INFORMATION
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service tech-
nician.
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 appili-
ance (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
not be above
0.5mA
Device
under
test
Test all
exposed metal
surfaces
<< 2-wire cord
oS
O Also test with ( }
plug reversed
(Using AC adapter ground
Earth
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 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 charac-
teristics are identified in this Service Manual.
Electrical components having such features are identified
by marking with aA 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.

2. EXPLODED VIEW AND PARTS LIST
Parts
Mark
A kk
A ke
A kk
S/G type only
A kk
Ak
*
*
<
A kx
e/a
Urethane foam B
=_

VSX-4000(BK)
2
3
4
o
6
4.
P.C.
BOARD
CONNECTION
DIAGRAM
Q409
Ext
|
Ap
ce
of
Transistor
and
ICs
2408
0401
0403
a404__a4oeg~—saaoseso3
aos
a4t3
1402
asi2
a407
xterna
pearan
10)
ra
a
a
Se
aT
7a
mE
a
:
TUNER
ASSEMBLY
(
AWZ1194)
ONTRO
2SA933S
2SK161
M5201P
uPC78M05H
=
Sean
=e
—
28C1740S
28K241-Y
uPC78M12H
2SC2668
5
A
Type
No
Type
No
4
i
|
8
7
i
ype No—
Lot
No
ists
Lot
No
|
|
SS
hee
i
S
E D
og S\6
2SA968
LM7001
M5218P
2SA1490(c)
2SB834
M5218PF
28C3854(C)
mut
2SC
2238
M5220P
5
, 2SD880 M5 1848P
Type
No
MN3007
3
4
Lot No
hee
Lot
No
Type
No
bs
E
B
2SA979
CX-789
PD0012A
is
om
as
Type
No
AN7470P
0405
Ail
RN220
E
)
:
io
ga
;
rec
:
ga08~4i0.~
Beci740s
aaa
cane
Ad
Lot
No
hee
0402@
35
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-
baoreaa
var
“©
Q403.406 2502668 D404.405 SVC321SP
Q404 2SK161-Y 0406~414 [1SS131
BI
cl
Ei
=a ene
2SA1145
LA1265S
2SC2240
2SC2705
Lot No
Type No
FE
C
el
CONTROL
ASSEMBLY
[a
Trees
8
:
——
7
MASTER VOLUME
2SA1237
LA7580
RN1201
RN1203
Type:N
RN2203
Type
No
e
pone
RN2201
Lot
No
i
L— BALANCE —
RigH,
Le
f
Ea
SHG
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}
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-
-
po
peReEeT
YY
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cp
[Access
STs
Mase
Re
28C2786
PA0016
TC9163N
;
TC4066BP
TC4069UBP
uPD4066BC
_________
station
CALL
RANDOM
20cH
———____1

only
Parts List
Mark No.
ahWwWh =
A kk
A kk
owmon an
A kk
Axx 10
Ake 11
Axx 12
Axe 13
Axx 14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Part No.
AWZ1194
AWZ1104
AWZ1105
2SA1490(C)
2SC3854(C)
CKDYF473Z50
ATS1033
ATT1016
AKX1004
AEK-108
AEK-100
AEK-008
AEC-784
AMR1049
AEL1020
AAD1046
AAD1047
AAD1048
AAD1049
AAD1050
AAD1051
AAD1052
AAD1053
AAH1005
AAH1009
AAH1010
AAH1008
AAK1117
AAM-030
AAY-157
AMB1084
AMR1105
ANE1043
NOTES:
e Parts without part number cannot be supplied.
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 For your Parts
marks * * and *.
** GENERALLY MOVES FASTER THAN *
This
classification
shall
be
adjusted
by
each
distributor
because
it
depends
on
model
number,
temperature,
humidity,
etc.
¢
Parts
marked
by
“
@
”
are
not
always
kept
in
stock.
Their
delivery
time
may
be
longer
than usual or they may be unavailable.
Description
Tuner assembly
Signal assembly
AF Video assembly
Transistor (Q1, Q3)
Transistor (Q2, O04)
Ceramic capacitor (C2)
Power transformer
(AC120V, T1)
Power transformer
(AC120V, T2)
Line voltage selector (S1)
Fuse (AC125V, 5A, FU1)
Fuse (AC125V, 4A, FU3,
FU4)
Battery
Leg assembly
Lamp assembly
Lamp with lead wire
Knob A (VCR1)
Knob B (VCR2)
Knob C (VDP/VCR3)
Knob D (VIDEO SIGNAL
SELECTOR)
Knob E (TAPE1)
Knob E (TAPE2)
Knob G( CD )
Knob H (PHONO)
Alminum panel LU
Alminum panel LD
Alminum panel RU
Alminum panel RD
Acrylic panel
Function board
Push knob (SPEAKERS)
Front panel
IR Filter
Bonnet case
Mark
No.
36
37
38
39
40
41
42
43
44
45
46
47
48
49
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
Part No.
AEC-898
AEP-818
ABA-176
ABA-258
ADG-089
BBZ30 PO80FZK
FBT40 PO8OFZK
VBZ40 POSOFMC
VMZ30 PO60 FMC
AKP-515
Stock Control, the fast moving items are indicated with the
Description
Rivet
Mica sheet
Screw
Screw
Screw
AC socket (AC OUTLET)
Control assembly
LCD assembly
Remote control assembly
SP. Switch assembly
Head phone terminal
assembly
Power switch assembly
Chassis
Rear panel
Bottom plate
P.C.B holder
Head phone holder
Heat sink
Rubber (A)
Rubber (B)
3. PACKING
Parts List
Mark No.
1
2
3
4
5
51
52
Part No. Description
AHA1020 Front pad
AHA1021 Rear pad
AHD1105 Packing case
AEA1002 Antenna set
ARB1030 Operating instruction
(ENGLISH)
Packing sheet
Battery assembly
WA-> Cr. teleleli=]. 4)

7
8
re)
|
10
11
12
Q510
Q508
E
Ic501
IC505
1c507
Ic
508
Q413
1C402
aQ4i2
Q407
1C401
1c509
IC511
Qs509
1C510
Ic502
1C504
IC503
Q501
Q502
0504
Q505
IcsI2
Q505
[C506
Q507
Q506
2 VR402 VR401
CONTROL
SIGNAL
ASSEMBLY
(
AWZ1104)
uae
mn
THEE
1C501,508 #PD4066BC
Ic502 CX-789
Q03~505,50 MS218PF
IC506 MS201P
(c509 M5216P
1C510 TC9OIG3N
'c511 TC4069UBP
Ic512 PD3068
Q501.502 2S8C1740S
Q503~505 RNI201
Q506,507 RN2201
Q508.509 RNIZ203
Q510 2SA933S
D502~504 RDIZESB3
D505~507 RD5.1ESB
D509~516,519~534 1SS131
0518 1S1555
ACOUSTIC.
TREBLE
fy
;
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REMOTE
CONTROL
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autos
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:
ASSEMBLY
;
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POWER
SWITCH
ATION
Ps
RL
aa
=
ASSEMBLY
}
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Ay
D301~307
1SS131

13
14
|
15
16
17
18
ano
ane Q109 Q103 Q101
ane
am
ans
a4
Q102
ans
IC101
21
anaes
0107
o108
O18
(C104
Q201
Qi28
ales
IC106
at
Quiz
Q202
a9
Q205
Q209
a207_
4120
IC10
Ic107
224
(C203
223
Q212
Q208
1¢202
9206
210
Q214
o2is
e201
0213
aa2n
12105
Qi22
0215
217
2210218
Q219
a220
1c205__1c204
Q222 Q226
225
1c206
AF VIDEO ASSEMBLY (AWZ1105 )
MATRIX
v
AC OU
AKP-
SWITCHED
TOTAL 300
MAX,
eel
IC101~103 209,210 28C2705
1c105 tesceons 2m1.212 28C2238
TC4069UBP pale
GB) Pur IC108 eDGOIsA 3.214 28A968
a222 2sD880
IC107 M51848P
rz 1C201,202 PAQOIG o223 espe
3) ns D101~103.106. 1SS131
bie he se
; eae ocr Mion DI07.201~217,
GC) 3 1ep06 PC? MOSH D221, 222,225,226,
Q101~103,107~ 116, D248~251,
Qinizaize, AOS 0253~285,257~ 262
(3) Pla @129,217~220,
a228 226 p218 KZL083
D219 RD24EB
D229~231 RD4.3ESB
QN7.19,221.224 28A933S
aco oSh1o37 D233~236,241~ 244 1162
Q201,202 28A979 0237 RBV602
Q205.206,215.216 28C2240
a207.208 2SAN45 0238.239 RDISEB
02,4 28C3854(C) 0252 RO4.7ESB
01,3 2SA1490(C) 0256 RD5.6ESB
1€301.302 LC7580
13 14 15 16 17 18

19 | 20 O1 20 23 VSX-4000(BK)
SP_SWITCH ASSEMBLY
a
HEAD PHONE
ASSEMBLY
$1: SPEAKER
IMPEDANCE Tt ATS1033
ro-oee 4
AKX 1004 15
|
ONO
A FU4 4A
A\r2 attiois AC OUTLET EK 100
FA ooaoamae £5 AKP-515.
acizov
Ay Fes 4a
AEK-—100
oN
SWITCHED UNSWITCHED
TOTAL 300W 200W MAX.
MAX.
28C2705
28C2238 -
2Sag68
2SD880
2SB834
06. 1SS131
2i7,
225,226,
.257~ 262
KZLO83
RD24EB
RD4.3ESB
1241~ 244 1162
De al
RBV602
RDISEB
RD4.7ESB
RDS.6ESB
19
20
o1
22
|
23
24
14

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Cr-Talelali=j.@)
2
3
4
5 6
5.
SCHEMATIC
DIAGRAM
TUNER ASSEMBLY (1/2) AWZ1194 a
Q401~
404:
FM
FRONT-END
Ray
Q406
:FM
IF
AMP
SIGNAL ASSEMBLY AWZ1104 piper
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5
6
7
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42
41
40
39
38
37
36
35
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TC401, 402 : ACM-015
1ea03 EM7001 T401 = ATC-194 i]
Q40t 2sk2ai-Y Ta02 : ATE-063 r PLAY
Q402 28C2786-L = 1403 : ATx-037
403,406 25C2668 1404 : aTB-099 fo TARE
a T405 : ATE1001
040% 2skiel ¥ T406 : ATE 1002 L Rec
Q405,411 RN2203 (aor: atcioor
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D301~307
$301
$302
$303
$304
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S335:STATION
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7/17
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The
A
mark
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some
component
parts
indicates
the
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S336:STATION
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8/18
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&
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10/20
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i
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2.2k
This is the basic schematic diagram, but the actual circuit may $340: VCR MODE STEREO/ MONO fe 4 TAPE 2
vary
due
to
improvements
in
design.
$341
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FILTER
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(FLAT/LOUDNESS/A/B/C) S351: Tape!
$3903:ACOUSTIC TREBLE — S352: Tape2
's
S304:ACOUSTIC
BASS
+
$353:CD
0301
L—
$305:ACOUSTIC
TREBLE
+
S354:
Phono
o——
S306:MUTE
S307:MASTER VOLUME -
D S308:MASTER VOLUME +
$309:FREQ/CH
.
S310:TUNING
+
S311:ACOUSTIC
BASS
—-
POWER
SW
ASSEMBLY
S312:TUNING
+
S355:POWER
STAND-BY/ON
$315: BALANCE LEF rT
$316: BALANCE RIGH TUNER ASSEMBLY
$318:
TUNING
AUTO/
MANUAL
S401
(-1)
:CHANNEL
STEP
AM
9K
—10K
$319; TUNING DIRECT ACCESS
$320 STATION FREQ/NAME FM 50K—100K
S401 (-2) :FM DE-EMPHASIS 50us— 75us
The underlined indicates the switch position.
v5
1
2
3
4
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6
7

AWZ1104 Z
2 :
544
So
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R548
100k
PRE AMP IC
42 4t
PHONO TUNER CD VCR REC! 6ND iv
1c502
PHONO TUNER /AUX yer a GND IN
3 z
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33
wer GND OUT
1N +
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(EXP) GND +
2 10
1C504(1/2) :
32
T
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TONE
25 24 23 22 hes a
OUT +15V -lOV DATA
clock IC506: S/S SW
OUT -ISV STROBE
= Se
1C505(272):
BUFFER
ZER AMP
1C510:
FUNCTION SW
g@
3s 2 tt 10 9 8
Ic510
7 6 5
CE REC2 REC! TAPE OUT TAPE OUT REC2 Pron cD TUNER {
PHONO
OUT REC2 our
F H — G t J
STEREO
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Vizag |e |i-10 |t-14 ]i-5
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PHONO
PHONO
co tuner |
27
IC507:
STEREO WIDE
C598 R590
2200p 15k
R591 10k
C597
2200p
R589
15k
10 11 12
R597 ue ®
1k L501 * LauiorK
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0507
AS ASSEMBLY
LCD
:
1€ 301,302
LC7580
IC501, 508 yPD4066BC LCD DRIVER
1C502 cx-789
1C503 ~ 505, 507 V30!1 AAVION
M5218PF
IC506 M5201P
1c509 M52 18P
IC510 TC9IG3N
IcSit TC4069UBP
Ic512 PD3068
Q501, 502 2SC1740S
Q503~ 505 RN1201
Q506,507 RN2201
Q508, 509 RNI203
Q510 2SA933S
0502~504 RDI3ESB3
0505~507 RD5.1ESB
D509 ~ 516, 519 ~ 534
1SS131
D518 1S1555
+|c607 | c608
T1220 th 220
re 16
C5114 76 IC5i- 5/6
o<}2 2
1
3 28
32 30
STROBE | STUDIO
DOLBY STUDIUM
2
SUR A.C
27
cLK
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25
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1c512
24
CLK
23
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RECEIVER
CONTROL
TNH CE2
42__ 43
>=
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arate res se rl .
ee
—
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CONTROL
aS [out
& 4
C6I2
SRE13
en
GND
T2-
2
2-5
22> Si00K | UW n 1/50 aie _
FM: 61.5mA
16 15 14 33 12 mW 10 3 8 if. 6 Ss 4 AM: 47mA
sw ss STROBE CE cE ie Ave STEREO | MONO GND GND EXTAL XTAL STBY aT ASE eno CD: 46mA
9716
POWER RF
RY CONV CLK DT
46 Az 48 49 50 Bt 53. 54 55 56 57 58 59 60. 61
a sides
\—TEST MODE
EE aca ce
R623 [R624
100k para 100k | 100k
Ic 511 a 510: REMOTO CONTROL
R6I2
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RSty. Rsse Ws4 RSZO
B+5V
one 3 Tria {r-3]7-4 res {7-8 T Te-2 ]e-3 [8-4 [a-5
|
|
TUNER |
ASSEMBLY
| ie
!
!
1
8-6 [8-7 [8-6 [8-9
B—-
10
11
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