Pioneer A-705R User manual

@) PIONEER’
The Art of Entertainment
Service
Manual
STEREO AMPLIFIER
-/05R
e@ Refer to the service manual ARP2890 for A-604R/HE.
ORDER NO.
RRV1590
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
The voltage can be converted by the
Power Requirement following method.
[sp] _| AC 110/120 - 127v/220v/240V With the voltage selector
AC220 — 230V AC240V, *
AC220 - 230V AC240V, *
%* : Alter the wiring of the Power-supply biock at the primary winding of Power-transformer referring to the "Line Voltage Selection”
described in Service Manual.
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
1996
T-FZK
APR.
1996
Printed
in
Japan

A-705R
INPUT ASSY
AWZ8359 and AWZ7806 have the same construction except for the following:
Symbol
&
Description
AWZ7806
AWZ8359
}
Romarts
|
C717 — C720 CEEA470M25 CENA470M25
C729 — C732 CEEA100M50 CENA100MS0
CN8105__- PIN JACK (2P) AKB7028 Not used
JA8105_—_— PIN JACK (2P) Not used DKB 1045 For CN8105
CN8106 PIN JACK (6P) AKB7012 AKB7079
MPU ASSY
AWZ8360 and AWZ7758 have the same construction except for the following:
Symbol & Description AWZ7758 AWZ8360 Remarks
a
VOLUME ASSY
AWZ8363
and
AWZ7724
have
the
same
construction
except
for
the
following:
oF
ar
Symbol
&
Description
AWZ7724
AWZB363
Remarks
C801,
C802
CEAS220MS50
CENA220M25
R807,
R808
RD1/4PM271J
RDR1/4PM2713
R809,
R810
RD1/4PM272J
RDRI1/4PM272J
R817,
R818
RD1/4PM562J
RDRI1/4PM562J

POWER AMP ASSY
Symbol & Description
C1 (10000pF/56V)
C2 (10000pF/56V)
C303, C304
Q401, Q402
Q403, Q404
RY401, RY402
VOLTAGE AMP ASSY
C203 — C206 (220pF/16V)
C213, C214 (10yF/50V)
231, C232, C235, C236 (330uF/63
D201 — D204
R203, R204
R205 — R208
R267 — R270
R271, R272
R275, R276
R293, R294
VR203, VR204 (47kQ)
REC OUT ASSY
Symbol & Description
AWZ8350 and AWZ7706 have the same construction except for the following:
AWZ7706 AWZ8350
ACHI234
ACH1235
CEAS471M6
2SC3298
2SA1306
ASR - 112
CEAS221M16
CEAS100MS50
CEAS331M63
AEL1148
RD1/4PM104J
RD1/4PM100J
RD1/2PM472J
RD1/4PM221)
RD1/4PM 1015
RD1/4PM112J
ACP1045
ACH7050
ACH7051
CEAS471M6R3
28C4793
2SA1837
ASR — 109
AWZ8351 and AWZ4895 have the same construction except for the following:
AWZ4895 AWZ8351
ACH7052
VCH1130
ACH7053
BR3371XJ30A
RDR1/4PM104J
RDR1/4PM100J
RDR1/2PM472)
RDR1/4PM2213
RDR1/4PM101J3
RDR1/4PM112J
RCP1047
Although
AWZ8352
and
AWZ7842
are
different
in
part
number,
they
consist
of
the
same
components.
DIODE ASSY
AWZ8353
and
AWZ7763
have
the
same
construction
except
for
the
following:
4s
Part
No.
D595
FMM
-
22S
F10P20F
D596
FMM
-—
22R
F10P20FR
POWER TRANS ASSY
Although
AWZ8354
and
AWZ7759
are
different
in
part
number,
they
consist
of
the
same
components.

A-705R
POWER SW ASSY
ia AWZ8365 and AWZ7707 have the same construction except for the following:
Symbol & D: ti
ym escription AWz8365 } Romats |
| Awz77o7__—|_AWZ8355_
IC551 NJM78MS6FAS NJM78M56FA NJM78M56FA
L553 LAU220K LAU220J LAU220)
POWER SW assy
(AWZ8355: HY7EW AND HY/GR TYPES)
(AWZ8365:SD TYPE)
a aancend
HEADPHONE ASSY
Although AWZ8357 and AWZ4885 are different in part number, they consist of the same components.
TONE ASSY
AWZ8358 and AWZ7766 have the same construction except for the following:
nee Part No.
tac] Sybo & Dein AWZE958
C613, C614 CKCYX103M25 CGCYX103M25
C615, C616 CKCYX473M25 CGCYX473M25
C619, C620 CKCYX273M25 CGCYX273M25
C649, C650 CKCYX333M25 CGCYX333M25
C651, C652 CKCYX223M25 CGCYX223M25
D610 — D615 AEL1099 BR3371XJ30A
$604 ASG1029 ASG1051
Remote receiver unit AXX1023 GP1U58X

A-705R
@
CONTRAST
OF
MISCELLANEOUS
PARTS
NOTES:
e
Parts
marked
by
"NSP"
are
generally
unavailable
because
they
are
not
in
our
Master
Spare
Parts
List.
e
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.
A-705R/HY/EW,
HY/GR,
SD
and
A-604R/HE
have
the
same
construction
except
for
the
following:
Symbol & Description A-604R
| HE _—i|__—iHY/EW HY/GR | SD
AF
ASSY
AWK7172
AWK7304
AWK7304
AWK7306
POWER
AMP
ASSY
AWZ7706
AWZ8350 AWZ8350
AWZ8350
VOLTAGE
AMP
ASSY
AWZA895
AWZ8351
AWZ8351
AWZ8351
REC
OUT
ASSY
AWZ7842
AWZ8352
AWZ8352
AWZ8352
DIODE
ASSY
AWZ7763
AWZ8353
AWZ8353
AWZ8353
POWER
TRANS
ASSY
AWZ7759
AWZ8354
AWZ8354
AWZ8354
POWER
SW
ASSY
AWZ7707
AWZ8355
AWZ8355
AWZ8365
INPUT
ASSY
AWK7180
AWK7305
AWK7305
AWK7305
HEADPHONE
ASSY
AWZA885
AWZ8357
AWZ8357
AWZ8357
TONE
ASSY
AWZ7766
AWZ8358
AWZ8358
AWZ8358
INPUT
ASSY
AWZ7806
AWZ8359
AWZ8359
AWZ8359
CONTROL
COMPLEX
ASSY
AWP7003
AWP7008
AWP7008
AWP7008
MPU
ASSY
AWZ7758
AWZ8360
AWZ8360
AWZ8360
VOLUME
ASSY
AWZ7724 AWZ8363
AWZ8363
AWZ8363
S1
Voltage
selector
Not
used
Not
used
Not
used
AKX
—
507
#1
(AC110V/120
—
127V/220V/240V)
S2
Voltage
selector
Not
used
Not
used
Not
used
AKX1004
*1
(AC110—-
127V/220
-
240V)
Ti
Power
transformer
ATS1490 ATS7124
ATS7124
Not
used
(AC220
-
230V/240V)
T1
Power
transformer
Not
used
Not
used
Not
used
ATS7125
(AC110V/120
—
127V/220V/240V)
AC
outlet
AKP
—
502
AKP
-
502
AKP
-
502
AKP
-
515
FU2
Fuse
(2.5A)
Not
used
Not
used
Not
used
AEK
—
512
#2
AC
power
cord
:
ADG1127
ADG1154
ADG1154
ADG1158
Scerw
Not
used
VBZ30P120FMC
|
VBZ30P120FMC
|
VBZ30P120FMC
|
For
insulator
Rear
panel
(MET)
ANC7240
ANC7431
ANC7431 ANC2081
Insulator
Not
used
AMR2622
AMR2622
AMR2622
S4
Switch
Not
used
ASH
—
501
*3
ASH
-
501
#3
Not
used
On
rear
panel
Screw
Not
used
BMZ30P080FZK
BMZ30PO80FZK
Not
used
For
S4
switch
Front
panel
(MET)
ANB7018
ANB7055
ANB7055
ANB7055
Heat
sink
ANH1435
ANH7017
ANH7017
ANH7017
Sheet
AEE1014
AEE7010
AEE7010
AEE7010
Operating
instructions
ARE7049
ARE7071
Not
used
Not
used
(English/French/German/Itarian/
Swedish/Dutch/S panish/Portguese
Operating
instructions
Not
used
ARC7119
Not
used
(German)
Operating
instructions
Not
used
Not
used
ARE7072
(English/Spanish/Chinese)
Side
pad
L
AHA1658
AHA1658
AHA1658
Short
pin
plug
AKM
-
050
AKM
-
050
AKM
-
050
Packing
case
AHD7313
AHD7313
AHD7314
Packing
sheet
AHG7008
AHG7008
AHG7008
Note
#1
:
Refer
to
"SCH-1"
of
A-604R/SD
in
the
ARP2890
service
manual.
%*2
:
Refer
to
"SCH-6"
of
A-604R/SD
in
the
ARP2890
service
manual.
%3
:
Refer
to
pages.

Mark No. _ Description ss Parts No,
CAPACITORS
C1 (1000056) ACH1234
C2 (1000056) ACH1235
C417 -C420 CCCSL680K500
C308 -C310 CEAS010M50
C306 CEAS220M50
C501 ,C502 CEAS331M50
C303 ,C304 CEAS471M6
C301 ,C302 CEAS4R7M50
C505 CEHAQ100M50
C503 ,C504 ,C506 CEHAQ101M50
C401 -C404 CFTXA104J50
C405 -C412 CFTXA223J50
C305 CKCYF103Z50
RESISTORS
A R409 R410 (0.22,//5W) ACN1075
R513 -R515 RD1/2PM102J
R421 -R424 RD1/4PM100J5
R305 ,R306 ,R310 RD1/4PM103J
R303 ,R304 RD1/4PM153J
R507 -R509 RD1/4PM331J
R311 RD1/4PM334JU
R312 RD1/4PM680J
R505 ,R506 ,R511 RD1/4PM821J
Ay R413 ,R414 RD1/4PMFL392J
A\ R433 -R436 ,R441 R442 RFA1/4PS101J
A R309 RFA1/4PS221J
A R437 -R440 RFA1/4PS470J
A R401 -R404 ,R443 ,R444 RFA1/4PS4R7J
A R503 ,R504 ,R512 ,R519 ,R520 RFA1/4PS4R7J
A R431 ,R432 RS1LMF681J
A R419 ,R420 RS2LMF100J
A R429 ,R430 RS2LMF331J
A R510 RS2LMF392J
A, R501 ,R502 RS2LMF472J
Other Resistors RD1/8PML IL IL
OTHERS
SPEAKER TERMINAL 8-P AKE1011
HEAT SINK M ANH-813
HEAT SINK ANH-880
CN7 CONNECTOR(11P) KPE11
POWER SW ASSY
SEMICONDUCTORS
IC551 NJM78M56FAS
Q551 2SD1913
Q552 XDC143ES
D557 HSS104-02
D556 ,D558 RD6.2ESB3
D554 RD6.8ESB
D551 -D553 $5688G
COILS AND FILTERS
/\ L554 (t.0mH7250V) ATF-163
L553 LAU220K
TRANSFORMERS
AN 7551 ATT1229
SWITCHES ANDRELAYS
A RY551 ASR1036
CAPACITORS
AN C551 ,C552 C561 ,C562 (0.01/400V) ACG1003
C580 (0.01/150V) ACG1005
C560 (1/7100V) ACH1237
C557 ,C559 CEAS100M50
Mark No. Description Ss Parts No.
C556
C554
C555 ,C558
C564 ,C581
RESISTORS
R556
R553
R557
R551
R555
R552
Other Resistors
>R>
OTHERS
JACK
A AC INLET(1P)
FUSE CLIP
CN2 CONNECTOR(7P)
POWER TRANS ASSY
SEMICONDUCTORS
D527
D525 ,D526 ,D528
CAPACITORS
C528 C529 (0.01//150V)
C525 ,C526 (1/100V)
C524
C527
C523
RESISTORS
A R523 -R525 ,R529
Other Resistors
OTHERS
CN1 CONNECTOR(3P)
DIODE ASSY
SEMICONDUCTORS
D596
D595
REC OUT ASSY
CAPACITORS
C771 -C778
RESISTORS
Other Resistors
OTHERS
PIN JACK(8P)
CN12 CONNECTOR(15P)
INPUT ASSY
No service part
HEADPHONE ASSY
CAPACITORS
C491 ,C492
CEAS101M25
CEAS102M25
CEAS470M25
CKCYF103Z50
RD1/4PM102J
RD1/4PM222J
RD1/4PM331J
RFA1/4PS470J
RFA1/4PS4R7J
RS2LMF101J
RD1V/8PMUIL IL
AKN-207
AKP1132
AKR1003
KPE7
HSS104-02
S5688G
ACG1005
ACH1237
CEAS101M63
CEAS2R2M50
CEEA221M63
RStLMF103J
RD1/4PM[ JUL
KPE3
FMM-22R
FMM-22S
CCCSL221J50
RD1/8PM[JLIL
AKB7029
KPE15
CKCYB392K50

A-604R, A-604R-G
1. 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 AN 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.
1.1 PARTS LIST (for A-604R/HE)
Mark No. Description Parts No. Mark No. Description Parts No.
AN 1 Q3 TRANSISTOR 2SA1302 48 NUT NK70FUC
A 2 Q4 TRANSISTOR 28A1302 49 NUT NKSOFUC
A 3 Q1 TRANSISTOR 2803281 50 PUSH JOINT (PLS) AMR2537
A 4 Q2 TRANSISTOR 28C3281
A 5 Q231 TRANSISTOR 2804137 51 REMOCON WINDOW(PLS) AAK2457
52 FUNCTION LENS (PLS) AAK2458
A 6 Q232 TRANSISTOR 28C4137 53 LED LENS (PLS) AAK2459
Ay 7 T1 POWER TRANSFORMER ~~ ATS1490 54 NAME PLATE (METAL) AAM1058
8 S3 SWITCH ASU1047 55 LED LENS (ABS) PNW2019
9 TERMINAL SCREW AKE-031
A 10 AC SOCKET 3-P AKP-502 56 ROTARY KNOB S (PLS) AAB1367
57 ROTARY KNOB M AAB1382
A 11 FU1 FUSE(2.5A) AEK-512 58 ROTARY KNOB L AAB1385
AN 12 AC POWER CORD ADG1127 59 PUSH BUTTON A (PLS) AAD2430
NSP 13 CHASSIS (MET) ANA1214 60 PUSH BUTTONB (PLS) AAD2432
14 REAR PANEL (MET) ANC7240
NSP 15 PANEL STAY (MET) AND1057 61 POWER BUTTON (PLS) AAD2434
62 OPERATING INSTRUCTIONS ARE7049
NSP 16 BOTTOM PLATE (MET) ANF1102 (English, French, German, ttarian,
NSP 17 HEAT SINK (MET) ANH1435 Dutch, Swedish, Spanish, Portuguese)
18 FOOT AMR2414 63 REMO- CON (CU-A013) AXD7053
NSP 19 DAMPER ABE1008 NSP 64 BATTERY (R6P,AA) AEX-010
NSP 20 HEAT SINK HOLDER (MET) ANG1825 65 STYROL PROTECTOR R AHA1599
NSP 21 PCB HOLDER (MET) ANG1826 66 STYROL PROTECTOR L AHA1600
NSP 22 SHIELD PLATE A (MET) ANK1244 67 PACKING CASE AHD7185
NSP 23 SHIELD PLATE B (MET) ANK1245 68 PACKING SHEET AHG1204
24 SPRING (FE) ABH1089 69 BONNET CASE(MET) ANE1418
NSP 25 CUSHION (RUBBER) AEB1074 70 BATTERY COVER AZN2249
26 NYLON BINDER AEC-093 71 PANEL BASE (PLS) AMB2136
27 RIVET AEC-441 72 FRONT PANEL (MET) ANB7018
NSP 28 PCB SUPPORT AEC1006 73 VOLTAGE AMP ASSY AWZ4895
NSP 29 PCB SPACER AEC1084 74 POWER AMP ASSY AWZ7706
NSP 30 PCB SUPPORT AEC1231 75 POWER SW ASSY AWZ7707
31 PCB HOLDER AEC1520 76 POWER TRANS ASSY AWZ7759
32 SHEET AEE1014 NSP 77 DIODE ASSY AWZ7763
NSP 33 BINDER AEF 1004 78 REC OUT ASSY AWZ7842
34 SCREW ABA-298 79 HEADPHONE ASSY AW2Z4885
35 SCREW (STEEL) ABA1007 80 TONE ASSY AWZ7766
36 SCREW (STEEL) ABA1009 81 INPUT ASSY AWZ7806
37 SCREW (STEEL) ABA1011 82 VOLUME ASSY AWZ7724
38 SCREW (STEEL) ABA1014 83 MPU ASSY AWZ7758
39 SCREW (STEEL) ABA1050 84 LITERATURE BAG AHG-117
40 SCREW ABA1052
41 SCREW (STEEL) ABA1095
42 SCREW (STEEL) ABA1192
43 SCREW (STEEL) ABA1193
44 SCREW (STEEL) ABA1194
45 SCREW BPZ30P120FZK
46 SCREW (STEEL) FBT40PQ60FZK
47 SCREW FBT40P120FCU

A-604R, A-604R-G
$1 Voltage selector
SD TYPE ONLY
va
JX
‘Y
L
AN
SS
\)
NaS
«/
SN
S07
7]
o\
9
;
2X
SD TYPE ONLY
ee
es
ING
w)
YOFZ
NOTE : Screws adjacent to WV mark on the product
are used for disassembly.
3

— A-604R, A-604R-G
2. PCB PARTS LIST
(for A-604R/HE)
NOTES:
¢ Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
° 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.
¢ Parts marked by “ © “ are not always kept in stock. Their delivery time may be longer than usual or they may be unavailable.
* When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohms and 47k ohms (Tolerance is shown by J = 5%, and K
=10%).
56082 —* 56 X 101 + G61 -------------neennn-n anne nnn nnn ncn cnn ec cnenccnnnnnnnnenen RD1V/8PM [5}[6}[1) J
— ATKSY 47 X10 3 © 47 ------nn-nnnnnn anna annette center ccna RD1/4PS [4] [7] [3] J
(0 © i ey RN2H [0] [R][5] K
1G + O10 ~-------------nnn nnn nanan nnn nn rn ne nce nnn nen emma anne nnnnnnnnnnnnan RS1P[o}{1}[0} K
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
G2 GE BOD ONO Y Se BOOT sec care etre ence eee ee RN1/4PC5621F
Mark No. Description Parts No. Mark No. Description Parts No.
LIST OF ASSEMBLIS C245 C246 CKCYF103250
C229 ,C230 ,C233 ,C234 CKCYF223Z50
NSP AF ASSY AWK7172 RESISTORS
| — VOLTAGE AMP ASSY AWZ4895 R285 .R286 .R291 R292 RD1/2PM222J
|__|
POWER
AMP
ASSY
AWZ7706
R267
-R270
RD1/2PM472J
| _ POWER SW ASSY AWZ7707 R205 -R208 RD1/4PM100J
| __ POWER TRANS ASSY AWZ7759 R217 -R220 R227 -R234 RD1/4PM101J
NSP | DIODE ASSY AWZ7763 R273 -R276 RD1/4PM101J
|__ REC OUT ASSY AWZ7842 R203 ,R204 RD1/4PM104J
R293 R204 RD1/4PM112J
NSP INPUT ASSY AWK7180 R245 ,R246 RD1/4PM122J
|__ HEADPHONE ASSY AWZ4885 R271 ,R272 RD1/4PM221J
— | TONE ASSY AW7Z7766 R243 ,R244 RD1/4PM222J
|___ INPUT ASSY AWZ7806 R225 .R226 RO1/4PM224J
R235 -R238 RD1/4PM225J
NSP CONTROL COMPLEX ASSY AWP7003 eg deed Bel a ay
= oie penis R239 -A242 RD1/4PM512U
eae A R251 ,R252 RD1/4PMF561J
A R213 -R216 .R247 -R250 RFA1/4PS101J
A R253 -R256 RFA1/4PS271J
VOLTAGE AMP ASSY A R281 -R284 RFA1/4PS4R7J
VR201 ,.VR202 (10022) ACP1037
SEM CONDUC PORS VR203 ,VR204 (47k) ACP1045
Q213 ,Q214 Q221 ,Q222 2SA1048 Other Reaistors RD1/8PMC IIL
Q207 ,Q208 ,Q217 ,Q218 2SA1145
Q237 0238 ,Q249 ,Q250 2SA1145 OTHERS
Q209 ,Q210 2SA1238
Q215 ,Q216 .Q223 ,Q224 2SC2458 GNIS: COMES TONER) ee
Q233 ,Q234 2SC2603
Q205 ,Q206 ,Q219 ,Q220 2SC2705
Q235 ,Q236 ,Q251 ,Q252 2SC2705 BOWEN DME”
— Q245 -Q248 2SC2878
Q211 ,Q212 2SC3065 ae ee oSA1115
ee ah Q403 ,a404 2SA1306
Q201 ,Q202 2SK163 Qso2 | >SA092
D201 -D204 AEL1148 Gana >SB1274
pee See peer Q301 ,Q302 501 ,0506 28C1845
D213 -D216 RD10ESB a309 802235
Deos 0208 RD eEeee 303 -Q306 ,Q308 28C2458
Q401 ,Q402 2SC3298
CRS On > Q503 ,Q505 2SD1913
C209 -C212 CCCSLO70D500 D301 -D304 ,D504 -D506 HSS104-02
C201 ,C202 CCCSL101K500 D305 RD1SESB2
C213 C214 CEAS100M50 D504 RD27ESB2
C203 -C206 CEAS221M16 D501 2o802 RD30ESB2
C231 C232 ,C235 ,C236 CEAS331M63
eet ee CKCYBSS1KS0 SWITCHES AND RELAYS
C215 ,C216 CKCYB471K50 RY401 RY402 ASR-112
C217 -C220 CCCSL470K500 RY403 ASFI1005

dQ) PIONEER’
The Art of Entertainment
Service
Manual
STEREO AMPLIFIER
A-604R
A-604R-G
ORDER NO.
ARP2890
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
aaa ane] _PowerRequement | Remarks |
| OO | = faczz0v-2a0v AC 240V, *
HEZ | — | OAc 220v- 2200 AC 240V, *
Oe ye | :
AC 220V - 230V AC 240V
AC 110,120V - 127V, 220V,240V With the voltage selector
* : Alter the wiring of the Power-supply block at the primary winding of Power-transformer referring
to the "Line Voltage Selection” described in Service Manual.
© For the following: A-604R/HEWZ and SD; A-604R-G/HEZ, refer to page 32.
CONTENTS
1. EXPLODED VIEWS, PACKING AND
PARTS LIST isis issictcessceccassssetencetecorctcvaxtevsdaavasseese 2
2. PCB PARTS LIST uuu... ee eee secseeeeeeseetenereeceensas 5
3. SCHEMATIC AND PCB CONNECTION
DIAGRAMS iid sics sciesecetdescdetvudsassierevevnsdeddasedacsands 9
4. ADJUSTMENTS ....... ccc eee eceeeeeeceneeseeeneeeeeeeeees 31
5. FOR A-604R/HEWZ,SD AND A-604R-G/HEZ ..32
6. PANEL FACILITIES... eee eeeeeeereeeeeesereeeeseeees 33
7. SPECIFICATIONS ........ccsecsesseseesesesseesserseeseeenees 36
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. PO 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 Piace, Singapore 0923
© PIONEER ELECTRONIC CORPORATION 1995
O-ZFC MAY. 1995 Printed inJapan

A-604R, A-604R-G
OTHERS
Q114
2502235
JACK
AKN1025
Q101 ,Q102
2SK389
CONNECTOR
(6P)
KPE6
D109
RD18ESB3
TONE ASSY CILS AND FILTERS
L101 ,L102 (270mH) ATH1010
SEM CON ee On SWITCHES AND RELAYS
IC601 M5220L
S701 ASD1017
Q603 ,Q604 2SA992
S101 ASG1053
Q605 ,Q606 2801845 ata onions
Q609 ,Q610 ,620 0623 2624 —«- 282458
Q601 .Q602 28K246
Q622 0625 ,2626 XDA124ES CAL RE ITO
C105 ,C106 CCCSL151J50
Q612 -Q619 XDC143ES
C129 .C701 -C710 CCCSL221J50
D603 ,D604 ,D607 -Dé09 AEL1065
ae aero C109 C110 CCCSL271J50
6
C715
C716
CCCSL470K500
Boot Dee D606 ,D616 -D620 fe Seite CEAS221M25
601 ‘D606 , ; ‘ C119 .C120 CEAS3R3M50
SWITCHES AND RELAYS le le CEASA70M25
C729 -C732 CEEA100M50
$606 ASD1026
C721 -C724 CEEA331M25
S602 S608 ASG1019
C717 -C720 CEEA470M25
$607 S609 ASG1028
C101 ,C102 CFTXA103J50
$604 ASG1029
C113 C114 CFTXA123J50
S601 S603 ASG1030
e peniee C115 C116 CFTXA183J50
605 C117 C118 CFTXA333J50
C107 C108 CKCYB472K50
CAPACITORS C127 ,C128 ,C130 ,C132 .C133 CKCYF 103250
C623 ,C624 CCCSL121450
C727 .C733 .C734 CKCYF103Z50
C601 .C602 CCCSL150J50
C125 C126 CQMA272J50
C627 ,C628 CCCSL390J50 C121 C122 CQMA472J50
C607 .C608 CCCSL470J50
C609 -C612 CEANP101M10
RESISTORS
C647 C648 CEANP2R2M50 R135 ,R136 ,R149 R150 R160 ~——s RD 1/4PM1004
C603 ,C604 CEANP4R7M50
R103 R104 .R723 R724 RD1/4PM101J
C631 ,C632 CEASO10MS50
R737 .R738 RD1/4PM101J
C625 C626 ,C639 CEAS100MS50
R721 .R722 ,R725 ,R726 RD1/4PM104J
C621 C622 CEAS2R2M50
R109 |R110 RD1/4PM151J
C629 ,C630 CEAS470M25
R119 R120 RD1/4PM153J
C641 CEASR22M50
R115 A116 RD1/4PM182J
C605 ,C606 CFTXA823J50
R747 -R750 RD1/4PM220J
C645 .C646 CKCYB102K50
R711 -R716 RD1/4PM221J
C617 C618 CKCYB332K50
R121 R122 RD1/4PM225J
C643 C644 CKCYB391K50
R141 R142 RD1/4PM331J
C637 .C638 CKCYF103Z50
R111 -R114 RD1/4PM332J
C613 C614 CKCYX103M25
R729 -R732 RD1/4PM470J
C651 .C652 CKCYX223M25
R105 ,R106 RD1/4PM471J
C619 .C620 CKCYX273M25
R727 .R728 ,R733. ,R734 RD1/4PM472J
C649 .C650 CKCYX333M25
paisa R107 .R108 R139 .R140 RD1/4PM473U
C615 C616 473M25 R735 ,R736 RD1/4PM473J
R154 RD1/4PM562J
RESISTORS R117 ,R118 RD1/4PM680J
R6GO RD1/4PM131J
R161 R162 RDR1/4PM102F
R658 RD1/4PM151J
R123 R124 RDR1/4PM121F
R659 RD1/4PM271J
R137 .R138 RDR1/4PM391F
R611 -R614 RD1/4PM472J
R129 .R130 RDR1/4PM512F
VR602,VR603 (100k X2) ACT1074
R133 R134 RDR1/4PM560F
VR601 (100kX2) ACT1075
ADHERE R131 R132 RDR1/4PM623F
Sas da Resistors Vv R127 R128 RDR1/4PM8R2F
8205 CABLE HOLDER AKT1007 ie peas SEE i
8210 CABLE HOLDER AKT1011
601 REMOTE RECEIVER UNIT AXX1023 erneRS
PIN JACK (6P) AKB7012
PIN JACK (4P) AKB7015
INPUT ASSY CN8105 PIN JACK (2P) AKB7028
CN13_ CONNECTOR (12P) KPE12
SEMICONDUCTORS
mene soene CN10 CONNECTOR (15P) KPE15
a701 ,Q702 2SA992
Q103 -Q106 ,Q703 ,Q704 2SC1845

A-604R, A-604R-G
CONTROL COMPLEX ASSY
No service part
VOLUME ASSY
SEMICONDUCTORS
C801
Q802
Q801
Q805 ,Q806
Q803 ,Q804
D801 ,Ds02
CAPACITORS
C805 ,C806
C807 ,C808
C803 ,C804
C819 ,C820
C815 ,C816
C801 ,C802
C817 ,C818
C809 ,C810
C813
RESISTORS
AN R821 R822
A R819 ,R820
VR801 (20K X2)
Other Resistors
OTHERS
CN4 CONNECTOR (13P)
CN21 CONNECTOR (3P)
CN5 CONNECTOR (8P)
MPU ASSY
SEMICONDUCTORS
1C901
C902 ,IC903
Q902
Q903
Q906
Q901 ,Q904 ,Q905
D901 -D909 ,D911 -D913
D915 ,D916
D910
COILS AND FILTERS
L901 ,L940 -L942
CAPACITORS
C904 (47mF/5.5)
C919
C912
C901 ,C903 ,C915 ,C916
C902 ,C918 ,C920 -C922
C905 -C911 ,C913 ,C914 ,C917
RESISTORS
R901
Other Resistors
OTHERS
X901 CERAMIC RESONATOR(4.19MHz)
CN9 CONNECTOR (11P)
CN8 CONNECTOR (8P)
M5220P
2SA965
2802235
238103
2SK246
RD24ESB3
CCCSL180K500
CCCSL271K500
CCCSL470K500
CEAS100M50
CEAS101M50
CEAS220M50
CEAS470M50
CEZA101M25
CKCYF103Z50
RFA1/4PS4R7J
RS1LMF821J
ACX1085
RDV4PMOIOLU
KPE13
KPE3
KPE8
PD5224A
TA8409S
2SA1048
2802458
XDA124ES
XDC124ES
HSS104-02
HSS104-02
RD6.2ESB
LAU220K
ACH1246
CCMSL101J50
CEAS2R2MS0
CEAS470M25
CKCYF 103250
CKMYB271K50
RD1/4PM101J
RD1/8PMLIDILU
ASS1018
KPE11
KPE8

_|
1
|
2
|
3
|
4
5
|
3.
SCHEMATIC
AND
PCB
CONNECTION
DIAGRAMS
3.1 OVERALL WIRING DIAGRAM LA Wee
A-604R, A-604R-G
pane
car
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|
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Assy | 2o1_sXy (AWZ7708: A-604R/SD) [oH |
(AWZ7759)
sed
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(>+SCH-6)
a
AC POWER CORD |
4 nd61129 |
AC 110¥/420-127¥/220V/240¥ D
5O/BOHZ |
For A-604R/SD
0 ere
LINE VOLTAGE SELECTOR
AS AKxX-507
To AC SOCKET
OVERALL
WIRING
DIAGRAM
OVERALL
WIRING
DIAGRAM
SCH-1
SCH-1
—]
1
|
2
|
3
;
4
i
5
i
6
°F
—

A-604R, A-604R-G
3.2 INPUT AND REC OUT ASSEMBLIES
NOTE FOR SCHEMATIC DIAGRAMS (Type 1A)
Q@701-Q@704°FLAT AMP
&
rk
(3 Zz
INPUT assy 1. When ordering service parts, be sure to refer to
(AWZ 7806 ) “PARTS LIST of EXPLODED VIEWS” or “PCB
PARTS LIST”.
A 2. Since these are basic circuits, some parts of them or the
values of some components may be changed for improve-
= ment.
, ™
- 3. RESISTORS
‘ oO Unit’ k-kQ, MM, or 82 unless otherwise noted.
L104 nese a Rated power: 1/4W, 1/6W, 1/8W, 1/10W unless otherwise
ATHI010 (1/401 + ¢t noted.
A te aad OB Tolerance: (F): +1%, (G): £2%, (K}: +10%, (M): +20% or +5% un-
z less otherwise noted
_Fi04 ctor e 4. CAPACITORS:
TP ecm nig oot ts Unit p.pF or pF untess otherwise noted.
Vi7aw) Biot = Ratings: capacitor (uF)/ voltage (V) unless otherwise noted
-C/M deal a Rated voltage: 50V except for electrolytic capacitors
— Purot y5i| BS? 0 9 5. COILS:
p- =N 173) > . :
Sheu oo aSG1053 3 Unit m:mH or pH unless otherwise noted
ipgé—o Sd => eat 6. VOLTAGE AND CURRENT:
E — AKC-OS1 | ¥]_: Signal voltage at rated output
9 \ lore Vv:
rNi3 DC voltage {V) at no input signal unless otherwise noted
Bae teas aie aac valde Value in{ —) is DC voltage at rated power
C102
sae
5
ik
620k
1
OK
47.
0k
Ere
Tne
apenas
aT
iay
A
Or
*
Ink
1 2. 7k 0.01 Uisaal Cizawl tivaw) (i/awl ASO101 70° Puowo mute | ct OC current at no input signal unless otherwise noted
Eg 4
Free 2 g cE 5 Pyowo vocal |? 2 OTHERS.
oF . p 0G oo *@ or @. Adjusting pont
au Bae. ( en Bilge On PHONO wl . Measurement point.
(/aw) (1/aw) te } if co 9 Pa © The A mark found on some component parts indicates the im-
631 1c108t1/2) a TUNER an portance of the safety factor of the parts. Therefore, when re-
B
a
10
‘ye
1089
LINE
a
t
placing,
be
sure
to
use
parts
of
identical
designation
0138 ¢ ° Meta o_8, SCH—[) ON THE SCHEMATIC DIAGRAM:
A160 Fa ae @ SCH-[] indicates the drawing number of the schematic dia-
11203
Shei
oS,
58
aa
ud
rj].
|
Ry
gram.
(SCH
stands
for
schematic
diagram
)
. . 1? 9. SWITCHES (Underline indicates switch position}:
© bot aie TONE ASSY
KPEIS : ON/OF.
REC
OUT
assy
1104.
101-0106:
sabe)
S602:
SUBSONIC
ONOFF
( AWZ7842 ) PHONO EQ AMP eav i
er Se 5 oy S603 : DIRECT ON/OFF
a, ee S604 : POWER STANDBY/ON SW
cute ih Rae a $605 : MUTING ON/OFF
KPEIS 12 1 3 ans
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va Lee os Lp eg ee] AD INA am S607 : SPEAKER A ON/OFF
— fofs I, OS ae (a ee) sy dg. oT $608 : LOUDNESS ON/OFF
an ol YON ee tm | Es ax /OFF
opfrece A | A) OUI 1 oO $609 : SPEAKER B ON/OFF
Tos ee = Py 4 pagers wi
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INPUT
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Tofs ST wa ' :
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TT po rt Te HIN
ene ro} CT |" $702 : REC SELECTOR
[Io yao our al, ‘s a ({TUNER/CD/OF F/SOURCE/TAPE 1» 2/TAPE2p 1)
an 0}
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10/50 10/50
C715
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AUDTO SIGNAL ROUTE
C> Len SIGNAL
Any diode without part number indicates HSS104-O02.
INPUT ASSY, INPUT ASSY,
SC H-2 REC OUT ASSY REC OUT ASSY SC H-2
11
a
ss
a]
N
ame
Ww
—
Kh
—
ol
==
o

4 L 2 | 3 | 4 I
@ A-604R, A-604R-G
®@ This diagram is viewed from the mounted parts side.
Q102 a701 a7o3 Q117 a704 = a7902
INPUT assy Q101 Qai03 alos Q104 Q106 1c101 Q107—al10 Q113—a115 Qi22 Qli6é=—- 118 —al2)
TO VOLUME assy 47
— g115 Piet.) So
Oe EEG Se bud SRN (ER Shoe TE pH AEF
—— wiW— .—RI1e8 — re) ° -O- Z » re re) o*
0 8o ° °. erin | (? (9 ag} 20 9.2 oho rte)
° ° “e@ ° ° 6
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"OW CMK-P5X A
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ie)
REC OUT assy
log 'o 8
ee
ANP7078-A
TO MPU assy J13
TO TONE assy J10
NOTE FOR PCB DIAGRAMS:
1. Part numbers in PCB diagrams match fhose in the schematic
S, diagram:
2. A comparison between the maan parts of PCB and schematic
diagrams is shown betow.
Symbol in Schematic |_ Paihia
Diagrams * ‘
Y (Y Transstor
p Pikes
QS04 Q504
0203
Capacitor
C513 (Polar@ed)
4 | 5
ANP1682-C
3. The transistor terminal marked with E of_ shows the emetter
4. The diode terminal marked with @ orC> shows cathode side
5. The capacitor terminal marked with © or shows negatve
termunal
6.The parts mounted on each PCB include all
necessary parts for several destinations.
For further information for respective
destinations, be sure to check with the
schematic diagram.
14

A-604R,
A-604R-G
|
'
2
!
3
I
4
I
5
|
6
3.3 TONE, VOLUME AND HEADPHONE ASSEMBLIES @ This diagram is viewed from the mounted parts side.
15
TO POWER AMP assy 59
TO INPUT assy 46
Q801
BOWER AMP
Q802 | assy a
J21
HEADPHONE assy
ago3
ANP1682-C asos
1c801
VOLUME assy
To whe (88Y TOMES °88Y ro POWER TRANS assy CN1 TO POWER AMP assy CN7 TO INPUT assy CN1O
TONE assy
ANP 1682-C
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aet2 609 Q606 a604 1C601 605 Q603 Q623—0625 Q602 a601 A620 acze Q614—a616 613 626
a610 a617— 0619
|
2
|
3
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(AWZ7766)
VOLUME
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SCH-3
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(AWZ7724)
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Q802
REGULATOR
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—— ASci01 ]
G&S 0 SUBSONIC | ON/OFF)
CN22
KPE
3
To POWER AMP assy J?21
Q603-G606: TONE AMP (m SCH- 4)
HEADPHONE assy
(AWZ 4885 } aa
$603(1/3)
ASG 10:30
DIRECT (ON/OFF )
C64
Be 000p
® zs 2
2 SESE =
- Zz:
+30V 10 Lo -30v¥] 0
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No Ne an, °
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To VOLTAGE AMP assy
(> SCH- 4)
| restore
0620: Q@622-Q625 ONE SHOT PULSE CIRCUIT
Hy
AKNIO2S
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