Akai AM-2600 User manual

AKAI STEREO INTEGRATED AMPLIFIER
move. AM-2600
SECTION 1 SERVICEMANUAL ..............-00e0000- 1
SECTION 2 PARTS LIST ......... 00 cccccecececeecees 15
SECTION 3 SCHEMATIC DIAGRAM. ...................24

SECTION 1
SERVICE MANUAL
TABLE OF CONTENTS
I. TECHNICAL DATA: g: cs:i Sdn se gehik etd hacen Se eee wae Sard ene die MAE eee LA oe
Il. DISMANTLING OF UNIT 20... cc cc eee reer e eee e nee e ene e nena
Ill. CONTROUS oes 5.8 5G 8 BARE RIS MAAS BD iE are Thales Gd etaes dee EARLY HS
IV PRINCIPAL PARTS LOCATION... 1... occ e een ees
V. LEVEL, DIAGRAM) -)) ei h04 oe tare De cree ew eee eee ee a eee bide dag Co dele ey Rae
VI. MAIN AMPLIFIER ADJUSTMENT... 1. cc en ene n eee e nee eaee
1. IDLING CURRENT ADJUSTMENT oo. eee een eens oe
2. LEVEL METER ADJUSTMENT... eee nnn nee eens
Vil. CLASSIFICATION OF VARIOUS P.C BOARDS ..... 0... e ees
1. RELATION OF P.C BOARD TITLE AND IDENTIFICATION NUMBER .................
2. COMPOSITION OF VARIOUS P.C BOARDS ..... 1... oes
For basic adjustments, measuring methods, and operating principles, refer to GENERAL OPERATING
PRINCIPLES AND ADJUSTMENTS.

|. TECHNICAL DATA
POWER AMPLIFIER SECTION
CONTINUOUS POWER OUTPUT —
2-CHANNELS DRIVEN
with no more than 0.1% total harmonic distortion.
POWER BANDWIDTH (IHF) 7 Hz to 40 kHz/8 ohms (Total Harmonic Distortion: 0.1%) a
SIGNAL TO NOISE RATIO (IHF) a 7 _
PHONO Better than 75 dB
___AUX | _ Better than 95 dB = :
RESIDUAL NOISE __ te | Less than 0.5 mV at 8 ohms -
CHANNEL SEPARATION (IHF)
ee ___ _ PHONO Better than 55 dBat1,000Hz
DAMPING FACTOR _ > More than 60(1kHz,8 ohms)
OUTPUT SPEAKERS A, B (4 to 16 ohms)/A+B ( 8 to 16 ohms)
HEADPHONE 4 to 16 ohms
POWER INDICATOR METERS (2) 3/80W switchable ;
PREAMPLIFIER SECTION
INPUT SENSITIVITY /IMPEDANCE
PHONO
AUX
TUNER
Phono 2: 3 mV/33, 47 or 100 k ohms
Phono 1: 3 mV/50 k ohms
150 mV/100 k ohms
150 mV/100 k ohms
TAPE MONITOR PIN: 150 mV/100 k ohms
; 7 ce DIN: 150 mV/100 k ohms.
OUTPUT LEVEL/IMPEDANCE
TAPE REC | PIN: 150 mV/100 k ohms
DIN: 30 mV/180 k ohms _
FREQUENCY RESPONSE
PHONO (RIAA EQUALIZATION)
TUNER, AUX, TAPE MONITOR
30 Hz to 15 kHz +0.8 dB, —0.8 dB
7 Hz to 70 kHz +0 dB, -1 dB _
TONE CONTROL | BASS +9 dB at 100 Hz
: TREBLE | +9 dBat 10 kHz = :
LOUDNESS CONTROL +10 dB at 100 Hz, +6 dB at 10 kHz (High Position)
+10 dB at 100 Hz (Low Position)
7 (Volume Control set at —30 dB position)
FILTER HIGH —5 dBat 7 kHz (7 kHz position)
—3 dB at 10 kHz (10 kHz position) |
LOW —2 dB at 50 Hz (30 Hz position)
eee —6 dB at 50 Hz (60 Hz position) oe
MISCELLANEOUS
SEMICONDUCTORS Transistors: 35 Diodes: 17
POWER REQUIREMENTS
DIMENSIONS _
CSA, UL and LA models: 120V, 60 Hz
CEE models: 220V, 50 Hz
Other models: 110/220/240V, 50/60 Hz switchable
440(W) x 141(H) x 331(D)mm, (17.3 x 5.6 x 13 inches)
WEIGHT
10 kg (22 lbs)
* For improvement purposes, specifications and design are subject to change without notice.

lt. DISMANTLING OF UNIT
In case of trouble, etc. necessitating disassembly, please disassemble in the order shown in photographs. Reassemble in
reverse order.
I
5
SCREWS
[ 2
CABINET
SCREWS
BOTTOM PLATE
FRONT PANEL SCREWS
SCREWS
CONTROL KNOBS

il. CONTROLS
NRO =
oOnN OO FW
. SPEAKER SYSTEM SELECTOR
. OUTPUT POWER LEVEL METERS
(Left and Right)
. METER SWITCH
. MODE SWITCH
. LOUDNESS SWITCH
. VOLUME CONTROL
. STEREO BALANCE CONTROL
. INPUT SELECTOR
. POWER SWITCH
10.
11.
2s.
13.
14.
15.
16.
17.
18.
HEADPHONE JACK
AUDIO MUTE SWITCH
LOW FILTER SWITCH
HIGH FILTER SWITCH
TONE SWITCH
BASS TONE CONTROL
TREBLE TONE CONTROL
POWER INDICATOR LAMP
TAPE MONITOR SWITCH
Fig. 1 Controls

IV. PRINCIPAL PARTS LOCATION
LEFT ch
HEAT SINK
@
POWER SWITCH
Swg0l
FUSE TERMINAL
POWER TRANSFORMER
CAPACITOR C902 ,903
iIOOOOpF 63V
ara TAPE RC BOARD M2-5435
SPEAKER SYSTEM
sw90
£Q AMP PC BOARD
M2- 5617A
_[e|_-
TONE CONTROL PC BOARD M2-5618
8
Li if it
©
POWER LEVEL METER
LEFT M901
SELECTOR
2
POWER LEVEL METER
RIGHT M902
HEADPHONE JACK
J90I
'__ AUDIO MUTE SWITCH SW4
MAIN AMP RC BOARD
M2- 5432A
RIGHT ch
HEAT SINK
BASS TONE TREBLE TONE
CONTROL VRI
TONE SWITCH SWI
“—-HIGH FILTER SWITCH SW3
=n ————e oa
q } ®
-— PC BOARD M2-5619
Fig. 2 Top View
METER SWITCH SW3
-—MODE SWITCH SWI
-—LOUDNESS SWITCH SW2
BALANCE CONTROL
VRIA
VOLUME CONTROL | INPUT SELECTOR
VRIB swt
LED RC BOARD
TAPE MONITOR SWITCH
M2-5617C sw
CONTROL VR2
POWER INDICATOR
DI
“— LOW FILTER SWITCH Sw2
Fig. 3 Front View
5

V. LEVEL DIAGRAM
LEVEL IN dB
Sa
30
20
~20
-40
-50
AUX
TAPE MONITOR (PIN)
TAPE MONITOR
(DIN)
PHONO
SPEAKER
CONTROL AMP MAIN AMP HEADPHONES
|
_—
TAPE REC(PIN)
TAPE REC(DIN)
SPEAKER OUTPUT
(29dB)
TAPE MONITOR(DIN)!
AUX, TUNER TAPE MONITOR(PIN): 150mA
(-14dB)
(EQ AMP)
|
|
|
a
|
I
|
|
|
|
|
|
|
|
{
{
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
22V/8 OHMS
i
|
|
|
!
|
NN
|
av
(MAIN
AMP)
HEADPHONES
(4¢4B)
0.77V/
8
OHMS
:
(0dB)
(CONTROL
AMP)
TAPE
REC
(PIN)
1SOmv (-14dB)
TAPE REC(DIN)
30mv (-28dB)
PHONO 3mvV
FREQUENCY [kHz 4
(-48dB)
Fig. 4 Level Diagram of Model AM-2600

VI. MAIN AMPLIFIER ADJUSTMENT
1. IDLING CURRENT ADJUSTMENT
TESTER
IDLING CURRENT ADJ
(L CHANNEL )
VR |
elie a ~
Connect a tester to Power Amp. P.C Board test point
between Pin-11 and Pin-12, and between Pin-29 and
Pin-28.
Adjust semi-fixed resistors VR-la, VR-1b until the volt-
age is 30 mV.
2. LEVEL METER ADJUSTMENT
SPEAKER
OUTPUT
AC VOLTMETER
Aubio osc °
IKHz
Fig. 6 Level Meter Adjustment
a) Connect instruments as shown in Fig. 6.
b) Turn volume control knob on the front panel until
the AC voltmeter indicates 4.9 volts (3 watts).
c) Adjust VR-3a,b so that level-meter indicates 3 watts.
(Refer to Fig. 7)
TESTER
Ae
IDLING CURRENT ADJ ("
(R CHANNEL) (4)
ui TREb
a TR3b
TRIb tT
28 0
TR4b | |
<<) TR7b 270
026
oO 23 24 25
Fig. 5 Main Amp. P.C Board M2-5432A
Fig. 7 Volume P.C Board M2-5619

Vil.
CLASSIFICATION
OF
VARIOUS
P.C
BOARDS
i
1.
RELATION
OF
P.C
BOARD
TITLE
AND
IDENTIFICATION
NUMBER
7
PC
Board
Title
- ;
7
7
;
PC
Board
Number
a
"Main
Amplifier
PCBoard
_—
M25432
;
2
Tone
Control
P.C
Board
Po
M2-5618
=
Equalizer
P.C
Board
;
M2-5617
~
Volume
P.C
Board
_
Loe
M2-5619
Tape
P.C
Board
M2-5435_
Chart-1

2. COMPOSITION OF VARIOUS P.C BOARDS
1) MAIN AMPLIFIER P.C BOARD M2—5432 2ED
BdAj
344
3WVS
3H1
36
ISMW
Zd1
GNY
INL
z
(PSWHOOLZ
Mb/l(S5)]
198
|
‘ :
(43)
e1g0sz
creas
AZIAMOS ‘32700 6£ ‘82
before he
eae
332
vso
"INA
|
on
x
|
(10H
zs9sz
o1uk
5
(oma
3)
99982
sro
gid
THm
BOLVOIONI
(A)
OD
OpE1DSz
FORA
aaMod
x
lose
(AMO)
bis
ysZ
2uL
DING
ONOT/LHM
=
3NOHd
OSH
®
(A) (0)
ge9198z
ua
®
5
gies-zWw
mA
(9(aar9ESIszZ
40
(4)ONE)tx)
TSPEISZ
aNd
gi9c-26
2
@
{aN
Bez9VSz
40
(wNO)SEewsz
@
o
318
SNOT
MTA
{A}(0)
8z91982
W178
ONOT/ANd
s19G-2W
2
{H)(9)(41(3)
(-Opeuse
6199-2~W
(®
O38
ONOT/MIA
{
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Ds
ig
ce
® MIA rE
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(unojessesz
vuovescasz WK aout
eal sre
me
me
ne
ne
hao ta an ayovseyase
ro eal
038
o3u
ae
ee
7"
2 Bs
of
38
GED
Ed
we = ANS ONOT/ LH
ize LBs ASE JHA oe 88
AObe
OF
AOI
2
g
8
ov
Err)
HM
(Z)AMB'IZ10°0
1069
DINd
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9uo
gegosz
eigase
Ispeosz
ezpasz
vlavse
12gasz
eezvse
9gsase
291982
z910Sz
ovelosz
ogsasz
gzovse
|-ovgvse
328
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@93
aog
goa
v
|
:
SESE
|
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-
"a

ee
er
ae
ee
ae
a
ee
2)
TONE
CONTROL
P.C
BOARD
M2-5618
@~<
WHT
pei
|
cere
M2-5432 @)
@a-<=
Yuw
YLW/LONG 8LK
M2- 5432
PNK/LONG BLK
BLU
ener
ist
ORS
ame
=
ECB
Lee
28¢ 1222
2SC1312R
3) EQUALIZER P.C BOARD M2-—5617
@)|m2-5435
®
M2-5432A(1)
INPUT SELECTOR
@®
oe
@)
swt
ts
ot
US
Be
%)
Ee
@@r-
/
TUNER
10
2$c 1222
PHONO |
—_——
BCE
2SCl3l2r

4) vO
YLw
M302
LEVEL METER
RIGHT |
LUME P.C BOARD M2—5619
[METER | MODE | LOUDNESS |
MONO LOW
STEREO OFF BALANCE
REV HIGH & Low VOLUME
i ny :
WHT/CROSS GRN ~(1)
WHT/LONG GRN
ZEON GAN (2) | M2-5618
--@
Ww
Tit» © | m2-5432 —MHT/LONG PNK _o» () | M2-5435
YLW/LONG REO
YEW/LONG RED
WHT/CROSS PNK
a
HT
LEVEL |
LEFT
Mgot
b eee
YLW/LONG BLK WHT/LONG BLK
5) TAPE P.C BOARD M2-5435
——
©° %@
@
Ore
oF © oO ©
©@®
-——
"REC/PLAY
(DIN)
J
@)
oO)
WHT/LONG BLK @® M2-5617A
WHT/CROSS BLK ®
o8Po,
WHT/LONG PNK © |me-s619
©_9b®
WHT/CROSS PNK Gy
FRONT REAR
SWi-l, 1-2
i i2
Til
3 SOURCE PARES MONITOR:
4 2
5 2
11

‘is not listed in this parts list, please refer to.

1.
HOW TO USE THIS PARTS LIST
This parts list is compiled by various individual blocks based on assembly process.
2. When ordering parts, please describe parts number, serial number, and model number in detail.
| 3.
How to read list. ;
r-- The reference number corresponds with illustration or photo number of that particular
parts list.
This number corresponds with the Figure Number.
This number corresponds with the individual parts index number
in that figure.
A small “x” indicates the inability to show that particular part
zn in the Photo or Illustration.
12-115x Schematic Diagram Number of individual
manufactured part.
(not required for parts order)
aces of particular part required.
‘
Ref. No. Parts No. Description Schematic No. Q’ty
FLYWHEEL BLOCK #13
12-115x 800425 Flywheel Block Assy. Comp. kDG#13 i
12-116 244506 Flywheel Only RD-233 1
12-117x 244754 Felt, Flywheel RD-275 1
12-118 251324 Main Metal Case RD-236 1
12-119 253080 Main Metal RD-237 1
.
The
symbol
numbers
shown
on
the
P.C.
Board
list
can
be
matched
with
the
Composite
Views
of components of the Schematic Diagram or Service Manual.
. The indications of Resistors and Capacitors in the photos of P.C. Board are being eliminated.
. The shape of the parts and parts name, etc. can be confirmed by comparing them with the parts
shown on the Electrical Parts Table of P.C. Board.
.
Both
the
kind
of
part
and
installation
position
can
be
determined
by
the
Parts
Number.
To
determine where a parts number is listed, utilize Parts Index at end of Parts List.
It is necessary first of all to find the Parts Number. This can be accomplished by using the
Reference Number listed at right of parts number in the Parts Index. (meaning of ref. no.
outlined in Item 3 above).
. Utilize separate “Price List for Parts” to determine unit price. The most simple method of
finding parts Price is to utilize the reference number.
CAUTION:
1.
When placing an order for parts, be sure to list the parts no. model no., and description. There
are instances in which if any of this information is omitted, parts cannot be shipped or the
wrong parts will be delivered.
. Please be careful not to make a mistake in the parts no. If the parts no. is in error, a part dif-
ferent from the one ordered may be delivered.
. Because parts number and parts unit supply in the Preliminary Service Manual (Basic Parts List)
may be partially changed, please use this parts list for all future reference.

1. RECOMMENDED SPARE PARTS LIST
Because, if the parts listed below are on hand, almost any repair can be accomplished, we suggest that you stock these
Recommended Spare Parts Items.
Parts No. ’
Description ; Note
'Ba235877__|
_
Tape
P.C
Board
Comp.
M2-5435
-
:
|
BA235980
__
Tone
Control
P.C
Board
Comp.
M2-
5618
;
7
BA236002
2
Volume
P.
C
Board
Comp.
M2-5619
7
BA236035
Main
Amplifier
P.C
Board
Comp.
M?2-
5432
|
BA236103
|
_
Equalizer
P.C
Board
Comp.
M2-5617_
ee
;
BC241751
;
:
Cabinet
.
7
Same
as
AM-2400
_
BD235967
_
Front
Panel
Block
Comp.
AM-
2600
;
2
BT24065
8
Power
Transformer
AM-2600T-
“tt
T901.
7
BL245700
|
—
Lamp
8V
300
mA
(600m/mx2)_
IND901
EM240592
|
Level
Meter
DI8B14R
;
-M901,90200
7
EP245283
Relay
MY4A
24VDC
;
RLI
=
___BP245305 | __Relay MS4U 24VDC RLI
__-ES214650
|
Lever
Switch
SX15-1
7
Same
as
AM-2400
_
| ES240524 Rotary Switch SR321N 1-24 30 KC
ES243674 Lever Switch SX153-1 Same as AM-2400
£S246183 Lever Switch SX153-3
ES246194
Rotary
Switch
SR26N
2-4-4
20
KC
|
ET655648
Transistor
28D426(O)(R)
TR8
ET655650 | _ Transistor 2SB556(0)(R) TRO -
EV242267 | _ Volume V16LAG3N 50kx2_ VR1,2_
SK224886 Power Knob : 7
SK
233730
Lever
Knob
—
.*
_
SK240063
SelectorKnob
Same
as
AM-2400,
SK241863
~
Volume
Knob
_
:
Ue,
te
|
SK241874
Balance
Knob
;
a
SK646817
|
_
Single
Knob
-
_
Same
as
AM-
2400
-

3. TONE CONTROL P.C BOARD
(M2-5618) BLOCK
2. MAIN AMP P.C BOARD (M2-5432A) BLOCK
ee Parts No. Description Schematic Q’ty Symbol
,
No.
ine
Parts
No.
Description
Schematic
Q’ty
2-1 BA236035 Main Amp P.C Board : No.
Comp. (M2-5432A) 1 3-1 BA235980 Tone Control P.C Board
2-2
BA270426
Main
Amp
P.C
Board
Comp.
(M2-5618)
1
Comp. (M2-5432A)(CEE) i 3-TR1,2 ET459810 Transistor 2SC1222(E)(F) 45-1-110 4
2-TR1,2
ET204221
Transistor
2SA640-1(E)
3-VR1,2
EV242267
Single
axial
2
throw
Vol.
(F)(G)(H)
—45-1-168
4
V16L4G3N
50kx2
36-22-19.
2
2-TR3
ET62
3035
Transistor
2SC1
628(O)(Y)
45-1-200
2
3-SW1
ES2
14650
Lever
SW.
SX15-1
25-12-38
31
2-TR4 — ETS57965 — Transistor 2SA733(Q)(R)_—45-1-124 2 3-SW2 _ES243674_—_ Lever SW. SX153-1 25-12-31 3
2-TR6 ET623046 Transistor 2SC1624(O)(Y) 45-1-190 2 to4
2-TR7
ET623057
Transistor
2SA81
4(O)(Y)
45-1-187
2
3-C7
EC243371
Solid
Aluminum/C.
2-TR1O,
ET240636
Transistor
2SC1940(K)
0.15uF(K)
1
OWV
(Vert.
i
(L)(M)
45-1-241
2
Type)
u-19-2
2
2-TR12
ET557965
Transistor
28A733(Q)(R)
5-1-1411
3-C11,12
EC246767
Solid
Aluminum/C.
2-TR13
ET520841
Transistor
2SC711(E)
0.14
F(K)
10WV
(Vert.
to
15
(FXG)
45-1-67
3
Type)
%4192
4
2-TR16
ET666404
Transistor
2SD571(K)(L)
45-1-218
1
3-2
ZS417216
Screw,
pan
head
3x4
8
2-TR17 ET219868 Transistor 2SB560(E)(F) 45-1-232 1
2-TR18 ET4$2531 Transistor 2SD313(E)(F) 45-1-105 1
2-D2to8 ED214457 Silicon Diode 182472 45-3-4] 7
2-D9,10 ED562386 Germanium Diode
1S188AM 45-3-24 2
2-D13 ED245430 = Silicon Diode GPO8D 45-2-68 1
2-D14. ED240377_ Zener Diode RD36E(C) 45-6-72 1
2-D15 ED245430 Silicon Diode GPO08D 45-2-68 1
eet ED245428 Silicon Diode GP30G 45-2-69 4
to
2-RLI EP245283 Relay MY4A 24VDC 47-1-29 1
2-VR1 EV484863 Semi-fixed/Vol.
V10K8-4-2 1 kB 36-10-250 2
2-L1,2 E0650823 Phase Compensation
Coil 2.2uH(K) 23-1-239 2
2-R19, ER622978 Metal Plate/R. MPC71F1
20 5W 0.47 ohm(K) 35-16-48. 4
2-R46 ER389687 Metal Oxide Film/R. 1W
220 ohms(K) 35-15-10 1
2-R47 ER245531 Metal Oxide Film/R. 2W
1.5kK(K) 35-15-81
2-R52, ER246363 Metal Oxide Film/R. 2W
53 220 ohms(K) — 35-15-18 2
2-C2 EC538244 Solid Aluminum/C.
0.474F(M) 10WV (Vert.
Type) 24-19-22
2-C21 EC662128 Solid Aluminum/C.
2.24F(M) 25WV (Vert.
Type) 24-19-21
2-C33 EC239073 _~— Elect./C. 330uF 63WV
(Vert. Type) 24-12-16 1
2-C34 EC204671 Ceramic/C. DD31-6
to 37 0.01uF(P) S00WV 4-5-6644
2-3 ZS463353 Tapping Screw #2
3x8(BR) 6
18
When ordering parts, please describe Parts Number, Description, and Model Number in detail.

4. EQ. P.C BOARD (M2-5617A,
M2-5617B) BLOCK
Symbol
N Parts No. Description Schematic Q’ty
Se No.
4-1 BA236103 EQ. P.C Board A Comp.
(M2-5617A) i
4-TR1,2 ET459810. Transistor 2SC1222(E)(F) 45-1-110 4
4-SWt ES246194 Rotary SW. SR26N 2-4-4
20 KC 25-6-97 1
4-31 EJ246216 8P Pin Jack 31-1-188
4-2 BA236147 EQ. P.C Board B Comp.
(M2-5617B) 1
4-SW2 ES246227_ Slide SW. SSC323E 5-3-1191
5. VOL. P.C BOARD (M2-5619)
BLOCK
S 1
pats Parts No. Description Schematic Q’ty
QO. No.
5-1 BA236002 Vol. P.C Board Comp.
(M2-5619) 1
5-VR1I EV246148 Double/Vol. 1Z250kx2
3BM250kx2 =. 36-3-72 1
5-SW1 ES246183 Lever SW. SX153-3 25-12-32 1
5-SW2 ES243674 Lever SW. SX153-1 25-12-31 1
5-SW3 ES214650 Lever SW.SX15-1 25-12-38 = 1
5-2 ZS417216 Screw, pan head 3x4 6
6. TAPE P.C BOARD (M2-5435)
BLOCK
ae bol Parts No. Description Schematic Q’ty
9. No.
6-1 BA235877 Tape P.C Board Comp.
(M2-5435) 1
6-J1 EJ246216 8P Pin Jack 31-1-188 1
6-32 EJ698051 Din Jack 31-1-158 1
6-SW1 ES245733 Rotary SW. SR26N 1-2-5
20 KC 25-6-98 «1
7. TEMP. COMPENSATION P.C
BOARD (M2-5432C) BLOCK
Symbol
No Parts No. Description Schematic Q’ty
No.
7-1 EA245698 Temp. Compensation P.C
Board C — M2-5432C 1
7-TRS5 ET635218 Transistor 2SC945L(K)
(P)(Q)(R) 45-1-85 1
8. LED P.C BOARD (M2-5617C)
BLOCK
es pe Parts No. Description Schematic Q’ty
oO.
No.
8-1 EA241986 LED P.C Board M2-5617C 1
8-D1 ED656357 LED SEL-105R 45-15-11 1
When ordering parts, please describe Parts Number, Description, and Model Number in detail.
19

9,
ILLUSTRATION
OF
ASSEMBLY
BLOCK

er ep,
9 ) ASSEMBLY BLOCK
Ref.
Ref.
No. Parts No. Description petenatie Q’ty No. Parts No. Description Schematie Q'ty
HEAT-SINK
BLOCK
9-52
TA646773
Joint
AA-5240
2
9-1
ET655648
Transistor
2SD426(O)(Y)
45-1-221
2
9-53
ZW698308
Nylon
Rivet
(FNPR)
3x5.5
9-2.
ET655650_~——
Transistor
2SB556(O)(Y)
45-1-222
2
Black
=
2-7-54
5
9-3x
EJ624486
Power
TR.
Socket
31-1-97
4
9-54x
ZS608185
Screw,
pan
head
2.6x4
1
9-4x
EZ624734
Mylar
Sheet
AC-201
45-16-18
4
9-55x
ZW330412
Adjust.
Washer
(U)
D4x13x
9-5x ZS417148 Screw, binding head 3x15 8 0.13t 2
9-6 2ZS447840 Tapping Screw #2 3x8 (BR) 22 9-56x ZW330423 Adjust. Washer (U) D4x13x
0.25t 2
REAR
PANEL
BLOCK
9-57x
ZW330434
Adjust.
Washer
(U)
D4x13x
9-7 SP241931 Rear Panel 1 M2-5606 «1 0.5t 2
9-8x SP240546 Rear Panel 3 (CEE, VDE) M2-5607 1 9-58x ZW330445 Adjust. Washer (U) D4x13x
9-9x SP241942 Rear Panel 2 (CSA) M2-5606 1 0.8t a)
9-10x
SP240478
Rear
Panel
4
(BEAB)
M2-5607
1
9-59x
ZW330456
Adjust.
Washer
(U)
D4x13x1t
2
9-11
EJ240581
4P
Push
Terminal
32-1-72
2
9-60x
ZW439547
Adjust.
Washer
(U)
D4x13x
9-12 ZS522865 Tapping Screw #2 3x12(BR) 4 1.5t 2
9-13 EJ240535 3-throw AC Outlet 31-1-173 1 9-61 SP233684 Bottom Plate A M2-5245 1
9-14
SK652397
Knob
0512-2
34-1400
1
9-62
SZ645243
Circular
Foot
ACA
CA-6014
4
9-15
ZW651082
Washer
(SPC)
D3.2x10x1t
1
9-63
ZS565942
Tapping
Screw
#2
4x8(Pan)
4
9-16 ZS417216 Screw, pan head 3x4 13 9-64 EF562691 Fuse 2.5A 250V 39-1-50 |
9-17 EJ223514 3P Fuse Holder (Large) A 9-65x EF249851 Fuse (SEMKO T Type) SAT
Lupping
Type
40-1-97
1
(CEE,VDE,BEAB)
—
39-1-53
2
9-18x
EJ246868
Fuse
Holder,
AM-6S
(CEE,
9-66x
EF601942
Fuse
(SEMKO
T
Type)
VDE) 40-1-135 1 630MAT (CEE,VDE,BEAB) —39-1-53. 2
9-19x
ZS325495
Tapping
Screw
#2
3x6(BR)
36
9-67x
EF277424
Fuse
ST-40.8A
39-1-28
2
9-20 EW540123 AC Cord (CUL) 2.5M 26-3-20 1 9-68x EF459843 Fuse ST-2 5A 39-1-63 1
9-21x
EW516600
AC
Cord
(CEE)
YM-0065
26-3-28
1
9-69x
ZW273881
Earth
Lug
(BEAB)
1
9-22x
EW516475
AC
Cord
CUL
(CSA)
26-3-45
1
9-70x
ZW273892
Tothed
Lock
Washer
(BEAB)
1
9-23x EW604585 AC Cord BSI (BEAB) 26-3-37 1 9-71x ZS417150 Screw, pan head 4x6 (BEAB) 1
9-24x
EW604618
AC
Cord
(EC)(VDE)
9-72x
ZW413188
Nut
M4,
#1
(BEAB)
1
VM-0064 = 26-3-34 8.
9-25 EZ631945 Strain Relief SR-4N-4 2-7-49 1
9-26x EZ246936 Strain Relief (BEAB) SR-6W-1 2-7-8 1
ASSEMBLY BLOCK
9-27 BT240658 Power Trans. AM-2600T-1 38-4-440 1
9-28x BT245621 Power Trans. AM-2600T-3
(CEE,BEAB,VDE) —38-4-442 1
9-29x BT245586 Power Trans. AM-2600T-2
(CSA,AAL) — 38-4-441 1
9-30 ZW237857 Washer D4.1x10xI1t 4
9-31 ZW273914 Spring Washer 4
9-32 ZW413188 Nut M4, #1 4
9-33 EC240603_ Elect./C. 10000KF SOWV 24-10-1112
9-34 EJ551035 #Wrapping Terminal, 4P T5251 32-1-36 1
9-35 EJ539447 Earth Terminal 2P T4460 32-1-32, 2
9-36x ZS447761 Tapping Screw #2 3x6 (BR)
(Black) 7
9-37 ES224436 Push SW. JPO1 5-5-2211
9-38x ES242346 Push SW. JP17 (CEE,BEAB,
VDE) 25-5-224 4
9-39x ES239218 Push SW. JPO1 (TV-4)(CSA,
AAL) — 25-5-222
-
9-40x EC204671 Ceramic/C. DD31-6
O.01uF(P) SOOWV = -24-5-66 — 1
9-41x EC286198 Ceramic/C. AL-10
0.01pF(Z)125WV24-5-69
9-42 EJ655716 Head Phone Jack 3PMJ1E 31-2-67
9-43 ZW554624 _ E Jack Nut 7-1-56 1
9-44 ES240524 Rotary SW. SR321N 1-2-4
30 KC 25-77-47
9-45 EM240592 Level Meter DI8B1I4R 46-1-144 2
9-46 EL245700 Lamp (Cord Type) 8V
300mA (600mmx2) _28-2-57._—s 1
=
=
9-47 MZ223154 Meter Illumination 72-5024 1
9-48 ZS516205 Tapping Screw#2 3x8(BR)w/
washer 2
9-49 MS241571 Relay Shaft A M2-5412 2
9-50 ZW270123 ‘E’ Ring 4M 6-1-9 4
9-51 ZW322110 Washer (Nylon) D6.1x10.3x
1.0t 2
When ordering parts, please describe Parts Number, Description, and Model Number in detail.
21

10.
PHOTO
OF
FINAL
ASSEMBLY
BLOCK
10 ) FINAL ASSEMBLY BLOCK
Ref.
No. Parts No.
Description
FRONT PANEL BLOCK
10-1 BD235967
10-2. MZ224627
10-3. ZW526577
10-4 SE233807
10-5 SE244787
10-6 TA241953
Front Panel Block Comp
Push Button Bush A
Collar B, Jack
Lever Escutcheon (Small)
Lever Escutcheon (Large)
Meter Plate A
ASSEMBLY BLOCK
BC241751
10-8 ZW548010
10-9 ZS510344
10-10 SK224886
10-11 SK646817
10-12 SK240063
10-13 SK233730
10-14 SK241863
10-15 SK241874
10-7
22
Cabinet
Spot Facing Washer
Screw, binding head 4x12
Power Knob AT-2200
Single Knob
Selector Knob
Lever Knob
Vol. Knob 2
Balance Knob
Schematic Q’ty
No.
1
1
1
2
BS)
M2-5004
MC-5006
M2-5615
M2-5616
M2-5611/
M2-5622
_
M2-5426
MU-6028
M2-5021
AA-5250
M2-5428
M2-5614
M2-5612
M2-5613
me IWNe PDR
When
ordering
parts,
please
describe
Parts
Number,
Description,
and
Model
Number
in
detail.