Pioneer M-73 Service manual
(v)
proruEen'
I ne lurut€ oI souno ano v|s|on.
ORDER NO,
ARP2101
STEREO
POWER
AMPLIFIER
M-73
MODEL
r
Thlr manual b appllcable to
.
Ar
r
Ce
o
Elte manual
M.73 HAS FOTLOWING VERSIONS
Typc
HEZ AC22OV,24OV
HB AC?2OV,24OV
to tho HB typs, refor to
manuel
pour
le
eervlclo trata dol m6todo alulto olcrfto en erpafiol.
de
Powar lrquhn|rnt &porr
l.whohabl6)
{lwhcheble}
*
*
M-73/HEZ and HB typer.
dro
page
rervlce comprond
26.
:
Wrtt Garmsny
Unhod Klngdom
{.
Chlngo thr conn.ctlon ol tho
ler
expllcatlonr de r5glage cn
powcr
lrlnlformll!
frangalr.
.Lrfh.tbn
sd T2} laad wlra.
ffl
CONTENTS
1.EXPLODED
PARTS LfST......
2,
SCHEMATIC
coNNECTtON D|AGRAM
3.
P.C.B's PARTS LIST
ADJUSTMENTS
4.
PIONEER
PIONEER
PIONEER ELECIaO lcs
P|O|{EER
PIo|{EER ELECTnOMCS AUSTFALIA PW. Lm. 178-184 Boundary Road, Braeside,
ELECTnO ICS
ELECTROiIIC
O PIONEER ELECTRONIC CORPORATION
VIEWS, PACKING AND
P.C.BOARDS
AND
ELECTRONIC CORPORATION
SERVIC€
OF CANADA,
IEUROPEI
"...'..'.... .". ...'...'...
..........'...... -..'.. -.........
lNC. PO. Box 1760, Long Beach, California 9080't U.S.A.
N.V. Keetberglaan 1, 2740 Beveren, Belgium
....'.'....'.'....2
...'.....'.....22
lNC. 505 Cochrane Orive, Markham, Ontario L3F 8E3 Canada
I
17
4-1, Mesuro 1-chome,
1990
Mesuro-ku, rokyo 153, Japan
Victoria 3195, Auslralia
TEL:
[03]
YV AUG.
580-9911
Printed in Belgium
1990
1. EXPLODED VIEWS, PACKING AND PARTS LIST
NOTEST
.
Pa s veithout
o
The
A,
fsctor
tion.
.
Parts rrurkcd by
than usual or they moy be unavailable.
mark
the
of
part
number cannot be supplied,
on some
found
psrt.
Ther4orc, when
"@"
are not
component
alwalts
parts
indicaEs
replacing be sure lo use
kzpt in stock. Their delivery
the impormnce of the safety
par/,'
of identicol designa-
mty
time
be longer
Pan! llst of Extorlol
Mrrt No. Dlcrlptlon
I
INPUTAlleobly
2
PS
A&lcBbly
rNOB
4
PUSH XNOB
(POWER)
XNOB
o
SP-LCH Arrcmbty
NAME PLATE
7
SP-RCH Arrcnbly
8
FRONI Arscobly
9
POWER L Arscmbly
10
SCREW
l1
12
SCREW
SCNEW
13
SCREW
1,1
SCREW
SCREW
l6
SCREW
L7
scREw
18
SCREW
l9
SCREW
20
SCREW
WASHEB
22
WASEER
23
COIL
u
FLANGE NUT M9
25
(STEEL)
(STEEL}
(STEEL)
(STEEL}
(STEEL}
(STEEL)
(STEEL)
(STEEL)
SPRING A
and
METAL)
packlng
P.n. ftlo.
AW23065
awz3066
175
AABT
AAD1366
AADI835
AWz3067
AAMlOOl
AWz3068
AWZ3069
AWZm'6
ABA- 298
ABAI(x}4
ABAlOO9
ABA1O11
ABAIOI4
ABA104?
ABAlOil8
ABAIO50
ABAIOS2
ABAIOSs
ABAIOS8
4.a81009
ABFIOIT
A8IIl056
A81tu48
Mlrt No.
41
42
43
44
45
46
17
48
t9
tu
51
52
5{
CD
to
5?
58
59
60
6t
62
63
6{
65
Darcrhdon Plrtr l{o.
SPACER
COLOR
AEC1165
AARRIER
BARRIER
SHEET
AEETOI4
VOL-F A-grenbly
REG Asscnbly
HEAD PHOM Ars€nbty
STYROL PROTECTOR
STYROL PROTECTOR
PACI{ING CASE
AIIA1O33
AIIA1O34
AHDI925
SW Arsenbly
PACKING SIIEET
TERMINAL SCREW
SHORT PIN PLUG
PANEL BASE
FOOT
F@T
INDICATING
LENS
JOINT
SINK HOLDER
IIEAT
SIDB BOARD
SIDE
BOARD
R
L
AKM-O5O
AMBI685
AMRlI58
AMR1159
AMR1160
178
AMRT
AMR2193
AMSr(Xg
AMS1050
SIDE FRAMB R
SIDE FRAME L
26
27
A2a
29
30
3l
32
3i'
34
35
37
38
39
40
NUT
PI'LG CORD
AC POWER CORD
GROI'ND
LEAD
LEAD WIRE
I,EAD
WIRE
SPACER SET
CUSHION C
CUSHION
CUSHION
(RI'BBER)
GUBBBR)
(RT'BBER}
C
POWER R Aaaenbly
@VER
STRAIN REIJEF
BINDER
PCB
HOLDER
ABN.O65
ADEIOlS
ADGl036
AEAlOlO
AW230?8
AEG882
TRANS. FRAME
66
FRONT PANEL
67
REAR PANEL
68
PANEL
69
METAL BONMT
70
BOTTOM PLATE
7l
STAY
PCB HOLDER
EARTH PLATE
?3
75
'16
SINI(
IIEAT
HBAT SINK
IIEAT SINK
A
B
C
SHIELD CASE
SHATT
?8
OPERATING INSTRUCTIONS
79
80
PIN
JACK
Agenbly
ANBT4I9
ANEI253
ANGl4?4
ANL1O:!3
AXE1166
Mark
A
A
A
A
A
A
A
A
A
A
packlng
t{o. Drrcrlpdon
81 BIAS 1A!8cobb
82 REINFoRCE
L
Asscobly
8:r scREw
U NUT
85 SCREW
86 ELECTROLYTIC
E? CKA
88 FttSE
89 FUSE
90 FT]SB
91 Fr.rSE
92 FUSE
s3 FnsE
9{ TMNSISTOR
95 TMNSISTOR
(0.0UAO100V,
(T800MA
(T8OOMA,
(T5A
FU3)
(TsA,
FU{)
(T3.1sA,
fTs.rsa
FUs)
FU6)
(QT)
(Q2)
CAPACIT,
C2)
FU1)
FU2)
Pan.
ltlo.
BBZ4OPMOFZK
NK9OFCU
VI\'tZ!l0P060FCU
C1 ACII116O
A@1003
AEK-0!11
AEK.O31
AEK.O15
AEK.O15
AEK.{N2
AEK.(x2
2SC3281
2SC3281
Ma* No.
A
A
A
A
A
A
A
96
97 TMNSISTOR
98 TMNSISMR
99 TRANSISMR
A
A
1OO TRANSISTOR
101 TMNSISmR
102
103
IO4 POWER TRANSFORMER
105
106 BIAS 3 Alscnbly
IO7
108
Dlacrlpdon
TRANSISTOR
Pltsg swITcH
POWER TRANSFORMER
REINFORCER,{sEaobly
SCREW
(Q3)
(Q4)
(Q5)
(Q6)
(Q7)
(Q8)
(STEEL)
(RtwER,
st) AsG553
(T1)
(T2)
scREw
Penr
No,
2SA1302
2SAl302
2SAr302
2541302
2SC3281
2sql281
4Ts1298
ATSI299
ABA11I5
BBZ3OPO5OFZK
3
J
Ext€rior
t08
t4
83
22\
vr5
t4
70
l4
I
E-p
/./
t3
9T
/l
/in
5
t-"
2
@-
I
Y
r
-'N
2
"E
F:255
'-
72
3
to
"&
13
t4 I
(vt7
1i
t08
o
I
Il?lElllilzlsl
-
2. SCHEMATIC AND P.C.BOARDS CONNECTION
DIAGRAM
L INE
INPTJT
o?D1, O2O?
o2o3
0201 a^d 0202 oRrvEr
PIN
JACK
As
s enb ly
MUTE
o201.202
202 153252
D201,
(AWz3065)
I
i
M52'APF
25C2A7A
2SC17.05
::al:.. i:*11,.
l:::1
,,it,i
POi'E R
L
lawz3at6)
D402,405 AEL-43?
a1o2-1o1,
o.09,
r, 420 2sc2709
o.1
o111..19 2SA1145
o.1s 2sc2603
o421
RO5.5ESB
r
5s2s2
HZSSALL
2sk3B9NK
2SC1A45
.r
r, 415 2sA99?
2SC329A
1
nEsrsToas:
r.
lidirl.d in
M : Mo,
2. CAPACITORS:
rndin.d in
Indic.tion
VOLTAGE.
3.
E'signar
: DC \,olr.G
E
mA :
€
il0lE;Voltas€
4. OTHEnS:
: adiuni"g
A
Th. A d* land
oonft.
b. $r. i6 or.
* m..l.d
ihi3 i.
rhc b.!t .h!fr.r4 di.gr.n, bda lh.
improv.6.n$ 'n
dle ro
S.StITCflES
Sl: P0IER Sl
FRoill lsserbry
s30l: cD DInEcT 0!-0FF
s302: sP-l
6
7.W.:5* rc|....E ud6 oth.oi!
n, %U,
!rt,
lc)
voltas€
251
(vl
{ )
.nd current
point.
lctv l-ior
i(hnri.rl
ot
: r2*,
(!
F)/volr|g.
+
at rc
L DC
on
ar|d rlEino.t h|vc
d6'9.r.
:
tF)
c.prity
sirhoor volrTp i. sOV cc.pr .lErrolyri. c+-iror.
CURFENT:
Vd0. in
Oc drrrtni .t m
ol thc t
p.ns
c?-ito.l
LIiE DINECT
: J IOX
lKl
lvl
(1251 r
at
(Class
25U EO
iiotrr tis.d.
wlt4.t
inpul .ign.l
5@ conDo.Ent
sre
of $.
d6i!.Etion.
OII.OFF
.
D.n.
'20tt
lMl;
u.lc6 oth..wis
l25l so
A)l output(lktlz).
ntcd
Powtr.
in the CLISS I
shoen
p..tt
indic.r6 ih.
TtE.tlo.., thm
parB
rumblfs,
or@rl
-i!al
tol.r..tcc.
rlot.d
(crass
c0r{Tfi01 rrP 0il-qf_t
orr-QFF
sP-8 0i-0FF
not.d k : ka,
p : pF.
B),
im_
rlgl*ing,
m.Y v.rY
rcde.
LINE VOLTAGE
(For
llEZ and
SELECTION
HB typo3l
Line voltage caa be cbanged
power
1. Discon[ect the
2. Remove the
3. Chage
{, Stick
the
(Tl
and T2) lead
the
AC
top cover.
connectiou
wire.
voltag€
line
ol the
label @ tie rcar
Prt o. D.rctb&.|
AAX-r 93
aax-192
2:lov l.v.l
2/t()V lcv.l
I
PO\JVE
R R
(
awz3al
0503.606,
o5r 3. 620
with
{ollowiDg
cord.
porer
a)
1SS262
2SC210S
25C2603
25C3234
steps.
h'dnsformerg
panel.
32
O415, O"17 REGULATOR
..r
Assembly
(AwZ3O11)
64
SP-L As s.hb
y
I
(AWZ305
SP-R
Assenb ly
PS assenb ry
i,i'
(AwZ3t
(^\
€
RE I NFORCE
Assehbly
l^wz3o19)
,:;1];oo
R
0r
0106, ol
lsh.n
oc DETEC
3ri rch ir cLA55A/3
ToR
4
7
a
I
It,.5,.t,
3067)
5a)
3C
FRONT As s emb
rcr0r. rc102 R€cuLAToR
REG Assembly
y (AWZ3O69)
I
oaol-ro3
ot01-305
0306
7.
o31
31A. 320.
o323.331,332
0313.314 55555
0319 RD15€5A
RN12{,3
A€Ll055
a€L11r5
155252
A
B
(Awz
3 0 66)
i':;";,i:;rJ I l3:3';e:"3,*,,,
.+-f
OlOA RELAY
0101,103 256634
0102 Fr{1203
0104. 106. 107.2SC2456
0152
0105,
oa
or
0101-10.
0105.
o11A-121.
0151 ,
0106-113 aODF2FC-2
15 RO4,7E5a2
Dr
D117 ROr
OR]VE
151, 153
2SAl 0.6
2sBs50
s5566
11,1. 115,155252
152
2ESa2
oi03, ol 04
R€LAY
ORIVE
0
tl t-
a
e
a,."",t
r€/l" rgl
rgL.&l
rrd* ri6.r'6rrd
I
POWER L Assembly
-
so,
(AWZ3076I
t-"
I
SP- LCH
-lF
Assembly
SP- RCH Aasembly
lAWZ3O67l
A
REINFORCE R Assem
lAWZ3O68l
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