Yamaha A-760II User manual

sE EO I
L I F I E fi3 ~
TE q~h TE DAM
)
SE
VICE MAN
. FRONT PANEL
1
, - ' - ~ \ ""' , -
:~-: ; ~ :: ; ~ ~' ; •
-. - =.-"
~- ,.- ", Q
.-
,~ : ~ :Q
· l,_/ ' . . ~ _ . _ . ... ~ .'
.
,T
.~
~ , - I
· (\ . " 1'1" "
·
· .. . -.
. ' 1" , : I
Power Switch
Treble Control
f) Listening Level Monitor
.. High Filter
Main Direct Switch
Loudness Control
Disc Switch Balance
Control
Muting
Switch
a. Mode Control
(1) Volume Control Phono Select or
Speaker Switch Rec
Out Sele ctor
o Phones Jack
f) Input Selector
Bass Control
. CONTENTS
Rear panel. . . . • . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . 1
Names of
the Parts 2
Disassembly
Instructions . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . .. 3
Specifications . . . . . . . . . .. . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . • • . . • . . . . . . . • . . . . . . . . 5
Adjustm ents . . .. .. . . . . . . . . .. . . . . . . . . . . . . . . ... . . . .. . . . . . • . . • . . . . . . . . . . . . . • . . . . . . . 6
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . • . 7
Printed Circuit Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . • . . . . 7
Printed Circuit Board/Wiring _ . . . . . • . . . . . . . . . . .. 9
Complete Circuit Diagram 10
3 ~
SINCE 1887 • YA MAH
I004458 I " NIPPON GAKKI CO.. LTO. HAMAMATSU, JAPAN
. 82 . 3.2 .65K f { ~ Pnnted rn Japan,

• ••
•••
-- -•• • •• •
-- -
A-760 n
.REA R PANEL
Tr r
I,
' l:J m c-..
. -="I
CI
LSZ.
1 '-- --- --- -1 r-
fJ UTlJH )) ftll FlhIM 'llß( sot" W5.SIE BOT Il).! ~r OH
AlTEHfOI ~" PIlS EPl IVER us\I'$..LA. usM;nU :T){M AU · OESSClJS Cl:
L IAWl L •• • • • •
~~i'ii1J @
: ciI r:r Flt (Jl &OJ(KAl ARlOO MJt OPOSf r ~ APPt lUU L- ---' I-r- - - -
----'@
U.S.A and Canadian Models
Gnd
ter minal o Tape 1 ,2 record /playback [acks
Phono input jacks Speaker A. B ter minals
Tuner input jacks o AC
outlets
o Aux input jacks o Power
cord
r ] <..sz "" ~I
OYAMA HJI ~ ~
~~ ~ eaowerrs @]
---
IItPPOllaW CQ.UD.
Austr alian and British Models
... ....
O Y AM A HA ~ ~
~ ~ s ~ :.oo Wll. ns lQl
NIPPONGAUl ce, lT'D.
European Model
OYA M A HA ~ ~
HO 12'0 2::.>0»4 0 1IQ.1'S
3:C""",rrs :.a /OO Hl -c,
ro Jt GUJtI C D..UD.
•••
• ••
General Model
1------------------- -------------- --

A-760 1I
• NAME OF THE PA TS
Internal Top View
U.S.A and Canadian Model
AC
outlet
Muting switch
Power cord Disk switch
Power transformer
il Main Direct switch
Main board 2 (
NA07 861·2) Tone
control board 1 (NA07859-1)
Heat sink Main board 4 (NA07861-4)
Power transistor Main board 5 (NA07861-5)
Main board 1
(NA07 86 1·1l
Power switch
Function board
(NA07857)
Primary board 1
Tone control board 3
(NA07859-3l
Primary board 2
Tone
control board 2 (NA07859 -2)
--------- -------------------------2

DISAS SEMBLY INSTRUCTIONS
1. Remo ving the top cover
Remove screws
CD and 0 on each side, per photo
1 and remove the top cover by pulling back and
lifting up,
4. Removing
the rear panel
a) Remove
the top cover (step 1).
b) Remove
the bottom cover (step 2).
c) Remove screws
CD ~ @ . The
be taken off. cover can then
2. Removing
the bo tt om cover
Flip
the A-760II over and remove screws CI) ~ ®
in phot o 2; then remove the bottom cover.
Photo 2
3. Removing th e fron t panel
a) Remove
the top cover (step 1).
b) Remove
the bottom cover (step 2).
c) Loosen
the Speaker, Rec Out and Input knobs with
a 1.5 mm allen
wrench. PuHeach knob off its shaft.
d) Disconnect
the wires from the Power, Main Direct,
Disc and Muting switches being carefule
not to
brake
them.
e) Remove screws CD and 0 in photo 3 and remove
the front panel by pulling forward.
Photo 4
5. Removing the function board
a) Remove the top cover (step 1).
b) Detach
the various cords and connec to rs; then
detach the flexible wire fro m each switch with a
screwdriver. (Fig. 1)
c) Take out screws @ ~ @ photo 4 to remov e the
function board.
Fig.l
6. Removing tone control boards 1, 2, and 3, main
boards 4 and 5 and the power switch
a) Remove
the top cover, bottorn cover, and front
panel (steps 1,2,3).
b) Pull off the Bass, Treb le, Loudness, Balance and
Volurne
controls.
c) Tone control boards 2 and 3 can be removed by
taking
out nut ® and screws G) ~ ® in p hoto
5,
d) Tone control board 1 can be rernoved by taking out
screws (j) and ® and nuts ® ~ ® in ph oto 5.
e) Main board 4 is rem oved by ta king
out screws
®and @ and pulling off the Lis tening Level
Monitor
knob in pho to 5.
f) The power switch can be removed by removing
screws @
and @ in phot o 5.
g) Main board 5 can be rernoved by pu lling out the
phone iack fastener ® in ph oto 5 in th e direction
of
the arrow.
3---------- ---------- ---------------

7. Rem oving main board 1 and the heat sink
a) Remove the top and bottom covers,
b)
Remov e the function board (step 5).
c) Desolder
power transistors TR335 - TR338.
d) Take out main board 1 by removing screws CD -
®in photo 6.
e)
Detach connectors ® - @ in photo 6.
f) Remove the heat sink by taking out screws ®-
® in photo 6.
*Make sure that transistors TR321 and TR322 are
correctly
connected to the heat sink for proper heat
dissipation,
Photo 6
A-760 II
8. Removing the power tran sform er and pr imary
boards 1 and 2
a) Remove
the top cover (step 1).
b) Remove
the primary board wiring.
c)
Take out screw CD in photo 7 and release pr ima ry
boards 1
and 2 from board fasteners ® and ® .
d) Remove the power transformer cover by taking out
screws ®- ®in photo 7.
e)
Take out screws CD - 8) in photo 8 to remove
the power transformer .
Photo 8
------- -------------------------- --4

.SPECIFICAT IONS
Minimum RMS Output Power Signal-to-NoiseRatio (NEW IHF)
8 ohms, 20 to 20, OOOHz (Main Direet ON) Phono MM _ _. _ 74.5 dB
0.005% THD 80 W + 80 W Phono MC .
__ 78 dB
8 ohins, 1 kHz 0.002% Aux/Tape/Tuner 85 dB (Main Direct
THD . 80 W + 80W
ON)
4 ohms elipping power Residual Noise
. 1 k H ~ 0.5% THD 150 W + 150 W (lHF A Network) .
__ . . . . 65 p.V
Total Harmonie Distortion
Input Equivalent Noise
(20 Hz to 20 kHz) Phono MM - 138 dBV
Phono
MM ·to Ree Out Phono MC _ - 142 dBV
(5 Vou tput! 0.003% Filter Charaeteristics
Phono MC to Ree Out High 10 kHz, 12
dB/o ct.
(5 V output] 0.006% Channel Separation
Aux/T ape /Tu ner to Sp (1 kHz, vol.
-30 dB, Shorted)
Out
(40 W, Main Direet Aux, Tuner to Sp Out 70 dB
ON) . : ' 0.005% Phono MM to Sp Out
.. . . 70 dB
IM Distortion Ratio (60 Hz : 7 kHz =4 : 1) Phono MC to Sp
Out. . . . . 70 dB
Aux/Tape/Tuner to Sp Out Continuous LoudnessContral
8 ohms, 80W . . . . . . . . . 0.002% (Level-Related Equalization)
8 ohrns, 1 W 0.01% Max. Attenuation 20 dB at 1 kHz
Power Bandwidth (Main Direet
ON)
Audio Muting _ . .
-20 dB
(8 ohms, 40 W, 0.02% Gain Traeking Error
THD) . . : , 10 Hz to 100 kHz (0 to
-60 dB) _. . 2 dB
Damping Faetor Headphone Output/lmpedance
(8 ohrns, 1 kHz) . Better than 65 (0.01%
THD) 0.72 V/8 ohms
Frequency
Response
6.8 V/ 100
ohm s
( Au x t ~a p e / T u n e r to Sp Power Supplies. . . . . . . . . . . 120 V. 60 Hz (U,C)
Out, 8 ohms) .
.. . . 1 Hz to 100 kHz 220 V. 50 Hz (G,W)
," (+0,
-2 dB)
240 V, 50 Hz (A, B)
RIAA Deviation 110/1 2
0/ 22 0/ 240 V,
Phono
MM . ± 0.2 dB 50/60 Hz (R )
Phono MC . ±
0.3 dB Power Consumption . , . . . . . 350 W/
850 VA (Cl
Input Sensitivity/lmpedance 350 W (U, R)
Phono MM . 2.5
mV /47 k ahms 520 IN (A, G, B, W)
Phono'MC . 160 JJV/ 100 ohms AC Outlets
Aux/Tape/Tuner . 150
mV /47 kohrns Switehed x 2 . 100 W max total
Maximum Input Level (1 kHz) Unswitched
xl . . . . . . . .
200 W max
Phono MM . 180 mV RMS Dimensions (W x H x D)
... . 435 x 112 x 365 mm
Phono MC . 10 mV RMS (17-1/8" x 4-7/1 6" x
Tone Control Charaeteristies 14
-3/ 8" )
Ba
ss . ± 10 dB at 20 Hz Weight . . 9.1 kg (20 lbs., 7 oz.)
Tr eble . ±lOdBat20kHz
Turnover Frequeneies Specifieations subjeet to change without notiee.
Bass . 500 Hz
Treble . 3.5 kHz U :
USA. Model
Output Level/lmpedance C : Canadian Model
Ree Out . 150
mV /270 ohms R : General Model
Signal-to-Noise Ratio A : Au stralian Mod el
(I HF A Network, Input B : British Model
Shorted) G : European
Mod el
Phono M
(5 mV) .... . 92 dB W : West Ger
many Model
Phono MC (500 JN)
..
76 dB
Aux/Tape/T uner 106 dB (Main Direct
ON)
5--------------------------------

A-760 II
GENERAL A JUSTMENTS
Before adjustment
• Make sure that t he AC line is ± 10%
• Wait 5 minutes aft er power-on
to stabilize amplifier operation
Test
Step Adjustment
Conditions Loeation Test Point Value
Equipment
:
Main B +"B-
Between chassis ground Digital
Main board 1
voltage ad- No load and P1 terminal of pri- 47.5±O.3V
voltmeter
1
VR303
justment mary board
(test er)
Between P1 and
TP3 of the primary board 1.2V±O.1V
Photo coup -Minimum volume, (if
out of ranqe, turn to VR501 and VR303
(2 .0V±0 .1V
same as
2 ler
cur r ent
no load and
adjust B+, B- and P1 - TP3 =FEMKO, above
che ck* for
rated voltages) DEMKO)
Main
board 1.
Idling
TP3 - TP4 (L), same as
3 Minimum volume VR301 (L ch) ,
6.6 :g mV
adjustment
TP1 - TP2 (R) abo ve
VR302 (R ch)
Output off - L. R within
same as
4 Minimum volume Speaker
terminals
set check o± 30 mV above
* It is
not necessary to check the photo -coupler current of step 2 except when replacing the photo -coupler,
Also, perform steps 1 and 2
simultaneously (with two digital voltmeters).
ADJUSTMENT LOCATION DIAGRAM Main c.
board 1
D
VR301 (L ) VR30
2lRl
TP3 @ @
Primary c. board 1 c
00
TPI
TP4 c
c TP2
c
VR501 o0
0501 0
10
TR501 TP5
o
D o
• TP7
rp6
c
o
Pl mTP3
FRONT
Primary c. board 2
------- -------- --------- ----------- - - -6

A-7601I
- J
BL CK DIAGR AM
/.-
ZDR
oe SER....O
TONE AMP HIGH POWER ..tMP
REC INPUT DISC MODE FILTER LOUDNESS
PHONO MUTING 1\ \
BALAN CE \\
\ } {\
' , BASS TREBLE \
~ - - --- - - ---- - - - --- ---- ------ - -~
VOLUME
AUX
TUNER @-----~--- t___1
~H EA DP HO N E
PB '
TAPE PB 2
TAPE
t- - - --< 7"'i : ~ SPEAKER
REC 1 "'ROf
fer tON ; ~ ~ ~ ~ ~ R
REC 2
~ ---- .- -- -'
,
POWER SWITCH
-0 ':-0-
+47.5 V constant
A CI N
--47.5 V constan t
. PRIN lE D CIRCUIT BOARD PAnERN-SIDE COMPONENTS LAYOUT
Primary c. board (Australian, British and European Models)
~
' ,
~U
TR ~ O I
..
n J J ~
,....---------,~I===I= I= I==
7----------------------------------

8----- --------------- ---------- ---------
Lpaeoq ":l I O J ~ U O:l auoj,
e ...

PRINTED CIRCUIT BOARD PATTERN-SIDE COMPONENTS LAY OUT
Primary c. board (U. S. A and Canadian Models) Primary c. board (General M
odell
Function circuit board Main e, board 5
Tone control c. board 3 Tone control c. board 2

"' : l':'IN C.8oord fl i
.-.- '"
I
I
L ,
~- _r_ - =_ - ...." :
...,: ,
.-
--'
2:
!
,- ,
,
,
,
,
: I 1 I ;
: -1 :
!
' ! ,
!
L_ _ .. J
jJd
,
:tI Iü RY C.Board (2 ) -----.,
ro ".E CONTOOL C.Boo rd CIl
1"" -1
I
IMAI N C. BOOfd{ S1 ;}.L
I
I
_ -
d
~ , I BA SS TRE"L I: HIGH LOUDNESS BALANC!
I '. FILTER
I '. -
I :" l .•r-
~
i
,J c. .. ... II ~~: ~t J ~ 1
TONE COtH ROL C.SOlJrd (21
:_.::.._,:.J ~
LlS T !Nl NG L[V[L
"'HO Hn
MON ITOR l.. ort"Al'O~
'I'OLUME
\lAI" DIRC:"T LAMF OISC LA
"'"
-..UTINO LA"

A-760 II
.PRINTED CIRCUIT LA YOUT /WIRING
r------------------------------------------------------~
~ I
o I
:0 I r---------------
u,c Mod.1 I
" I
I
SWlTC>lIEO UIlSWIT CJCD
1OO. M.tllC . TOT.... zoo.. 'U ,ll..
AC OUTI..E TI
I
I
I I
~- --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~
ri-----------------------------------------------------
i
'" .
~
"'
oe
.
- ---, ~. ~
PRI.. A ~ Y ~ ,+- - +- - ....;;; ~ -
~ - - --- -..
C. ."BO ,.,Q ,.,'d,.,." ,.,.
r----------, ~--- - - -
i ~ ! ; "A"~ C. 'B oo rd l ~ 1
I . : I1
'1 : I
j, I
IL c : I
I
ß
~
L----- -_ .. -- ----,-----'
_ . CO"
~ __:.... __ 'C J
I
I
~----------------------------------------------------
'--- ----
9_ :-- -------- -------------------------

PARTS LST
A-760 I1
STEREO AMPLI FIER
.CONTE NTS Pag
.EXPLOD ED VIEW( Aliover) " ····1
.PART S LlST(Aliover) ·······································2
PARTS LIST(Circuit Board)
Tone ontrol Circuit Board ..·..······· .
Function Circu
it oa rd ·····································5
Ma in Clrcuit oar d ·..·..·..····..·..·········....·....·..· ·6
Control Circuit Board
U,C
model s 11
R model
12
A,G,B,W model s· 13
Notes
DESTI TION A BRE VIATIONS
U··..···..········ ······ ···..····..····....·..········..·..··U.S.A
C ··..· ·· ·..·..·..· ··..··..··...... CA DIAN
G·..·· NORTH EU OPEA
B···..· ·..··.. ····· ·..··· ······.. ITISH
R..·..·· · •·•..·.. · · · · GENERAL
A·· · ·· ·..· AUSTRALI N
W WEST GERMANY
S INCEI 887 • YAM H
NIPPON GAKKI CO., LTD. HA MAMA TSU,JAPAN
1 00 44 5 81

- - --- -
A-760 II
~ .
• EXPL DED VIEW ( Ali over)
1- -- --- -- --------

PARTS LlS (Allover)
Ref.
Part No.
Descript ion
No. ($
.Ib
:ß)
Remarks Cammon
model
Markets
1 NB
:60 :43 :70
Front Panel Unit 7 C /
~ '~"'JL-.::L'::";I ~
J
" NB:
60 :43 : 80
" . W
,R.UAG ,C,B
2 NB
:60 ;4 i 90 Knob Ass'y
77 ~ Ass'y
3 iA : 11;69 ;
00 Transi stor
2SA 1169(O,Y)
~7/::;;;I.1
4 iC
~ 27 ~ 73: 00
, 2SC2773(O,Y) "
5 iL :
00: 02 : 70
Mica Base AC-2Z9
711}"-;;I.
6 iL
~ OO ~ 06 ~ 00 ' " MT-ZOO "
7 BA :08:25 :30
;Heat Sink
M:~~
8 CB
:07)8 :80
Bush ~jJ7' · ;lY.:J.
9 Ei :33:0 1: Z0 Bind Head Tapping Screw ax lZIFCM3-Bl)
i:\;"1/1-:1' ;I<:/7''''::;
10 ED !82 :61 ~00
Bind Head Screw
MZ.6 x 10
jl"1/ r'J':t-::;
11 EV:20 :32 : 60
Spring Washer
M2.6(FCM3-Bt)
;;I. 7 '} /';"7 ' ;1 Y"\'-
1Z iA : 11:69:00 Transistor 2SA 1169(O ,Y}
~7/';;;;I.5'
13 iC ;Z7;73:00 " ZSCZ773(O,Y) "
14
AA ~61 :05 : 10 Rear Panel (J) I}
""',~ .:I'.JL- J
, AA:61 :05:30 " (R) " R
"
AA :61:05 :20
, (U,C) , U,C
" AA :6 J;05 :
50
" (A,B) " A,B
"
AA :61 ~05 ~40
" (G)(W) " G,W
15 CB
;07 :Z7 :50 Cord Stopper
16 LB:
40 : 10 : 00
AC Soket
SR
-4N-4
M702
5-A(ZiI )
:J- ~ 'A ~ ';I' ~-
AC?? ~ v ';I ~
R
" LB
:60 ;48 : 10 n
M7026 -B(3~)
" J
,U
" LB
:60 :43 : 10 "
M7017 -A " C
17 MG:
00 :07 : 80
AC Cord Black 2m6A250V I/U} :J- r R
n MG;OO;13
:60
" .2m13A125V " U,C
" MG:OO
:09 : 10 " 2m6A 250V , W,G
, MG:OO
;09 ;ZO "
, MG:OO:
10 : 00
,
Gray 2.5m7.5A250V
Black 2m6A ~ggv
,
, A
B
18 EN
:33 :00 ; 10 Bind Head Tapping Screw 3 X8(FCM3-Bt) 1ti'~1 / ~'1 ' ;I t::/.:I'.';;
19 EZ
~ OO : 14 ~ 00
Screw, for Ground Terminal $ 3 x 13.5(MFN
i-ll ?-AJ:1!'f.:l'.';;
ZO EV ;90 :13; 60 Sems Plain Washer
.,:3 .6- ~1 0-tO .6
(FNM3 -3g )
1ti-i!AAljl~ii
21 NA
:07:85 :70
Function Circuit Board
77/~ Y3/Y-~
J,R.A,G,C,B
, NA
;07;85 :80
" " U
, NA:07 : 96: ac " " W
22 NA
:07 ;96 :20
Tone Control Circuit Board
~-/:J / ~ Cl-JL-y- ~
W
n NA
;07 ;86 ;00
. . U
, NA
:07 ;95 : 10 , " R,A,G,C,B
'*
23
NA:07 ;96 ;40
Main Circuit Board
.>'1/Y-~
W
n NA :07
:86 ;20
" " R,A,G,B
" NA :07
;86 :30
" tt U
" NA
;07 :86:40 " . " C
24 NA
:07:86 :60
Control Circuit Board
:tJ1.Y-~
R
" NA ;07
:86 :70
, " U,C
" NA :07
:86 :80
.,
" W,A,G,B
25 KA
;80 ;23 :1O Push Switch
SDV3P E5A125V
7';lY.:J.SW
J
, KA
:80 :23 !20
" SDV3P TV-5 " U
" KA
;80 :24 ;30
" Z
-33-6 TV-8 " C
26 Fi :16 :4 1:00 Ceramic Capa
citor 0.01 150VACE(P)
-i!7:J/
J
" Fi ;34 ;4 1;00 n 0,01 MY(DE) " U,C
27 CB
!09 ;5Z :60
Cover for Capacitor
" CB :60 :08 :
10
Cover for Capacitor
SB-0833
HY-Ol0Z
:J /T/-lj'-1}"-il.ll'!
:J /T/-ft-1)"-.f.1Lll'!
U
J
* :New Parts lWT!lll.'l, )
----- - -- --- ---------- ---- -----------2-

A-760II
• Ref. Common
No. Pa
rt No.
Descr ipt ion ($ .ll. ß)
Remarks model
Mark ets
"28
GA ~6 3 ~59 ioo
P ow er Transformer
~ ; ! H 7/ A
A-7 60
U
, GA
:63 :60 : 10 " , " W,G
" GA
:63 :6.1 : 10 , " , A,B
" GA :63 :85
:20
" n " C
, GA
;64 : 43 :20
, n " J
" GA
:63:62 : 10 , , , R
29
KA ~ 40 :0 '7 i40
Slide Switch
ESD-3992
A7-1' rsw R
30
LB ~20 :1 3 :00
Fuse Holder I:. "- - x,j'1L-7 - R
3 1 JB ;0 0 : 11;00 P
ilot Lamp Lead Type 8V 0.15A '~1' C 'y ~7 /7' 1) - t'it
32 KA
:90:30 :30 Remote Rotary Switch CONTROL + wire I)
'E- - ~ c - 9 I) - SW
33 KA ~90 : 16 :50
, " "
34 KA :90 :16: 70
R emot e Push Swit ch Wire Section 1)'E--~7 ' Y ;"""-SW
R.U,A.G.C,B
n
KA :90 ~ 31 :80
, " ., W
35 KB
:00 :13 :00
Fuse T7A 250V
1:."--;(91'7 · ;1;...."-
R
36
37
AA
:60 :35 : 50
Top Cover
AA :
60 :36 :20
Bottom Cover
~ ';I 7tJ"-
* ~ J..tJ, ,-
A-760
,
39 AA
:60 :4 1 ;90
Holder .C·S
C'S;t-JL-7-
40 AA :
60 :38 : 50 Tight Screw with Steps
tltit,* ::;
4 1 BA :0 7:
72 : 80
Knob , (TONE CONTROL ) T·C';l 7 ~
CR-240
42 BA
:08:25 : 40
., (VOLUME) VOL "
43 BA
:07 :94 :60
, (Switch) SW " A
-760
45 BA ;07 :95 : 70
Cover. P ow er Tran sform er
~7/AtJ"-
J,RA G,B
, BA
:07:99 ; 10 n " " U,C
46 CBi6
0: 2 4 ~ 30
Isolation Plate
~1It&
J
" CB :60 :4 6; 10 " " R,U.A.G.C.B
47 CB ~60 !29 :20
Speacer. Switch
SWA--:.--tt -C
48 CB
:09:97 : 40 Slit Cover
AI ) ';t ~ tJ, ,-
49 CB :09: 98;
30
Support ,P.C
p·C-tt;f.- ~
50
CB ;09 :9 9: 10 Rubber,Anti Vibration 1lJi1i:iJ..
51 CB:
60 :05 :70
Bush 1) - 1"7'.;1;...."-
52 CB:
60 ;1 4 :40 S topper .Volt age Sele ctor
VSA ~ ';I '~ -R
53 BB :0 6 :97 :90
Speacer
A--:.--tt-
J
54 CB ; 09 :98 : 10 Rubber,Anti Vibration 1lJi 1i:iJ..
55 CB ;09 :86 ;00
Leg M
* 56 CB
:60 :43 :80 Damper 7
/'{-
57 CB :60 :0 5:
80
Tap e,Ant i Vibration
IlJiIiT-7'
58 ED
:33 :00 :60
Bind Head S crew 3 x 6(FCM3 -BI )
&'1<" -1' / I",j, ,*::;
59 EA
:34 ;07 ;50
Pan Head Screw 4
X75 ( " )
&'1<1"""'1 ''* ::;
60 EZ :00 ;08: 10 B.W Head Screw 4x 8
q,10 (FNM3·3g) a 1L-f - ? 7 ~.- ~ 7 r ~.~
61 EV :2 1:84:
00
Flat W asher
<t>4
jIilljZ~ii: ( , j'~ :1I.)
62 EV :4 2 :90 :30 T ooth ed Lock Washer
M3(FCM3 -BI ) 9I-llIi
it f H1 ~ ii:
63 M i ;06
:99 :50
Wir e Cord L
=80 2P I)
*/'7-1'1"-
64
iF iOO:18: 90
LED SLR-34UR(Red) LED (jjj;)
PHQ, :
: Accessories Assembly
itlU~As s 'y
TX :90 ;09 ! ac Hexagonal
Wren ch 1.5 ./,
"'1i'!v/T
ii< : New Parts (. Hfll ß)

A-760II
.PA RTS LlST(Circuit Board) I
Raf .
No.
e
Part No.
Description
($
.ll. ß ) Remarks Common
mode l
Market s
NA:07: 9 5:1.0
Tone Control Circuit Board -r ~ - :"- ::1 :"- ~ O - J\."'- ~
RAG.C .ß
NA
;07 :86:00
. U
C201 UW
:84 :64 :70
C202 Electrolytic Capacitor 4.71'F
25V
';-~::I:"-
C203 FG :4 1:14 :70
C204 Ceramic Capacitor
47PF 50V(K) 1!'7::1:"-
C205 UW:8
(73 :3Ö
C206 Electrolytic Capacitor 331'F 6.3V
';-~::I:"-
C207 UA :25 :41 :00
C208
Mylar Capacitor O
.OlI'F 50V(J)
7-! '7-::I:'-
C209 FM :11
:62 :20
C210 Electrolyic Capacitor 2.2,uF
50V
S·P::I :..-
C211 UA :25
:32 :20
- 214
Mylar Capacitor 0.0022,uF 50V(J)
7-!'7-::I:"-
I g ; l ~
UA :25 :43 :90
. 0.039,uF " "
C217
C218 FA :15 :42
~ 2 0
" 0.022,uF " "
C219 UA
:25 :35 :60
C220 " 0.0056,uF " "
C221 UA
:25 :31 :80
C222 n 0.0018,uF n e
C223 UW
:86 :63 :30
C224 Electrolytie
Capacitor 3.3,uF 50V
';-~::I:"-
C225
C226 FA :15 :5 1:50
Mylar Capae itor
0.15,uF 50V(J)
7-!7-::I:"-
C227 UW
:86 :81 :00
- 229 Eleetrolytie Capacitor 100,uF
50V
';-~::I:"-
C231 FD :61 :21 :80
C232 Polystrene Film Capaeiter
180PF 50V(K)
A-T::I:"-
C233
C234 FU :35 :2 1:00 Miea Capaeitor 100PFFE500V
7-!"IJ::I:"-
C~~~
FA :1 5: 33 :90
Mylar Capaeitor 0.0039,uF
50V(J)
7-!'7-::I:"-
~~gJ
HJ :35 :6 1 :00
Carbon Resistor 1xnRD25 "IJ-;f,:..-JliJjt
:~~~
HJ :35 :88 :20 ·
820Kfl • ..
, ~ ~ g ~ HJ :35 :7 1 :00 ·
10Kfl
. "
~~g~
HJ :35 :5 1 :50 ·
150fl
., ·
,::;n HJ :35 :8 4 :70 "
470Kfl " ·
'::;1~
HJ :35 :71 :00
"
10Kfl
" ,
~;l~
HJ :35 :71 :20
"
12Kfl
" "
~;~~
HJ :3 5 :56 :80 "
680fl
" "
~HJ
HJ ;3 5 :9 2 ;20 · 2
.2Mfl « ·
'::;;~ HJ :35 :68 :20 «
8.2Kfl « ,
~~;~
HJ ;3 5 ;6 1 :00 ·
1Kfl
" «
~H~
HJ35 :61 :80
"
1.8Kfl n "
I ~ H J
HJ :35 :72 :70
n
27Kfl
" "
~;~i
HJ :35 ;66 :80 n 6
.8Kfl « "
I ~ ;~~
HJ ;35 :64 ;JO n 4
.7Kfl " "
R237 HJ :35 :92 :20 · 2
.2Mfl • "
'::H~
HJ :35 :34 :70 , 4
.7fl
n «
1~;1J
HJ :35 :65 :60 ·
5.6Kfl ' "
1~;1i
HJ :35;J4:70
"
47Kfl
n "
1 ~ ~ 1 ~
HJ :35 :62 :20 , 2
.2Kfl
" ·
t ; ~ ~
HU ;57 ;51 : 10
Metal Film Resistor
110fl ~aJ.t.!!Ul!.:Jjt
VA201
HS :31 :16: 00 Vriable Resistor
30KB X2(1 ~ ~ i .'i !!.J
VR16m 1'*2i1
VA202
HS:31 :16 :1O »t
5KG x2 (withS;,i .
VA203
HS:31 :15:90
"
20KB x2 (1: ~ I !, C ~ )
.,
VR204
HS :31 :15 :80
,
200KBH x2 ( .) "
VA2 05 HS
;32 :06;70
"
60K x2 /100K x2
VR24m
IC201
"
iG :03 :96: 00
iG :0 5 :44 :00
IC
.
NJM4559D
TA75559P
rc
" I
),ne o •
IJchangeable
SW201 KA : 80 :16: 80 Push Swit ch 4 Unit S
7"'/'" :lSWJll.ilS
SW202 KA ;90 : 15 :90 Push Switeh with Remote 2·2
IJ{:- Ht7" ;lY:lSW2i1
SW 203 KA: 80; 16:
90
- 205 Push
Switeh
4 Unit
NS
7",/"':l SW .it NS
LB:
30 : 07 : 3C 2.5 Piteh Base Pin 3P 2
.51::" ' '/ -T ~ - A 1::":..-
LA;OO; 21: 1C
Wrapping Terminal Type-i
7 ·'/1::":..-7'1I'f~
• : New Parts (lifllldl.)
-
4--------------------------------

A-760II
Ref.
Pa rt No.
Description
No.
Cllll
"
~)
00
Remarks
Cemmen
model
Markets
.,
NA ;07 :85 l 70
Funcnon C ircuit Board
7 7 :'- ?Y 3 :'- ~-~
J,R.A.G,C,B
NA :07:85 :80
..
, U
NA ;0 7 :
96 :30 " W
~1g~ UA :25:4 1:00
Mylar Capacitor O.Ol).lF 50V(J) 7-1"'7-::l :"-
~lgl FG ~41 :22 :20
Ceramic Capacitor
220PF 50V(K) 1!7::l:'-
Cl05
FG:41 :21 :50
. 150PF "
Cl06
tt
Cl07
FV :81 :92 :20
Electrolytic Capacitor 2200).lF 6.3V
Cl0e
7'7 A 7 .'/ 7 Jr ~ :J :..-
Cl09
FT :76 :4 3:90 Polypropylene Film Capacitor 0.039).lF 50V(G)
Cll0
PS::l :.-
Clll
UA :25 :31 : 00 Mylar Capacitor O.OOl
).lF 50V(J)
C
l12
7-1"7-::l:'-
C113 FT ;76 :4 1:00 Polypropylene Film Capae
iter O.Ol ).lF 50V(G)
Cl 14
PS:! :.-
C115 FA :15:33:90
Mylar Capacitor 0.0039).lF 50V(J)
Cl16
7-1"5-::l :"-
C117 FV
84 :82 :20 Electrolytic Capacitor 220).lF 25V
cr is
75A7 ''/ 7Jr ~::l:"-
Cl19
FZ 00 :30:80
, l).lF
25V
C120
B"P75A7''/7Jr~::l :.-
C121 FM 11 ;62:
20
n
22 ).lF 50V
C122 BP::l :.-
C123 UA 25 :51
:00
Mylar Capaeiter O.l).lF 50V(J)
7-1"'7-::l:"-
~m
FG 41 :
23 : 30
Ceramic Capae iter
330PF 50V(K)
1!7::l:"-
W
Rl01 HU
07 :51:00
Metal Film Res istor
1oonRE35(F)
Rl02
i;:alltJIlIJ! m:
Rl03
HJ 35 :74 :70 Carbon Resistor 47Kn RD25
R104
tJ-*;;~m:
Rl05
HJ 35 :41
:00
,
10n
,
Rl06
"
Rl07
HJ 35 :64 :70
" 4
.7Kn
"
- 110 "
Rl11 HJ
35 :55 :60
"
560 0 n
Rl12
,
Rl13
HJ
35 :63 :30
"
3.3KO
R114 " r
R115 HJ
35 :41 :00
"
10n
"
Rl16
"
Rl17
HJ 35 :51
:50
n
1500
"
RllB
"
R119 HJ 35
:63 :30
,
3.3Kn
"
R120 ,
R121 HU 57
:78 :20
Metal Film Resistor 82KOSN
14K2E(FI
R122
i;:a llt Jll ~ m:
R123 HU 57
:66 ;80
" 6.8K!1 , R124 "
R125 HJ
35 :41 :00 Carbon Resistor 10!1 RD25
R126
tJ-*:.-~m:
I
R127 HJ
35 ;52 :70
"
2700
"
R12B ,
R129 HJ
35:84 :70
"
470Kn ,
- 132 ,
R133 HJ
35 ~34 :70
" 4.7!1 . ,
R134 HJ 35 :71 :50 " 15
K,Q
R135 .
R137 HJ
35: 62: 20
" 2.2K!1 "
- 144 i' W
TRIOI
iE 10
:27 :00
DualFET 2SK270(GR,BLI
TRI02
T.:I. 7)j,FET
0101 iF
00 :14 :70
Zener Diode RD6.2EB2 ';;:I:
1"-'7 -1" >1"- '"
0102 iF
00 :21 :20 "
BZ-162
0103 "
: ,
IC101
iG
05 :44:00
IC
TA75559P IC I
-
: I
SW101
KA 90 :16 :80
Remote Push Swit ch 4 Circuit 2pornt
I} 'E - ~ 7 ''/ ~ .:I. sw
SW102
KA 90 :12 :30
Remote Rotary Switch 4 Circuit6Point
SW103
I} 'E - ~ IJ - -7 I} -SW
.
PJ10l
LB 20: 17 ;30
Pin Jack
2P
PJI02
LB60 :19 :30
--
PJI03 " 6P
2PI::::.-::;"\"·,/ 7
f-- .
6PI::::.-::;"\" ''/ 7
BB
00 ~44:30 Contact Pin 1-z.5Pitch
SHF
·OO 1T·OBCS 2,5!:: ·
'/7::l:.--7 7 ~ 1:";.-
'HO
LB
30 :07 :20
Huseing 2.5Pitch
H3p·SHF
, -! 2.51::'
'/7'''7 ::; :''-'/
CB 60 :63 :80
Shiled Cap HY -0202
~-)j, '" 'f-"\" ''/ 7
Mi
07 : 44 : ac
Shiled Wire Flat tvpe L =100
:qrl;WPVC~ -lj, "' _ W
LB
20 :13 :90
8ase Pin 2,5Pitch
TEB2p·SHF
2.51:" ·'/7"-A 1:." :.-
LB 20 :13 :80
Housing 2.5Pitch
H2p·SHF 2
.5t. " 77"'7 ::; :'- '/
LB
30 ~07 : 30
Base Pin 2.5Pitch
3P TEB3p·SHF 2.5I:" '
'/7''-A 1::: :..-
LA
00 :21 :10
Wrapping Terminal 2P P
=5 i-type
il;W 5 ''/ 1:" :..- :f Jii! "ftR
* :New Parts Ciillll,ll, )
--- 5- - ----- ---- ---- - - - - ---- ---- ---- ----

A-7601
Ret.
Part No. Desc
ript ion
No. (llll .ll.
ß)
Remarks Common
model
Markets
NA: 07 :96 :4 Q Main Circuit Board ;l -r ;,, "/- ~
W
NA ;071
8 6:2O . I R.A.G .B
NA ~(>7 ;8 6:30
• " U
NA ; 07 :S6 :40
, C
C30 1 FH :61:11:00 Ceramic Capaeiter
C302
1 OPF 500V CH -type -t!'7::J:--
C303
FG :4 1:14 :70 "
C304
47PF SOV(K) ·
C305
FZ :00: 30: 10 Electrolytic Capaeiter
C306
2.2!,F 2SV B'P7'7~7- ' ;I~';-~::J :--
C307
UA :2S :32 :20
Mylar Capaeiter
C308
0 .0022~ 50V(J)
7{'7-::J:--
C309
FZ !OO:30:10 Electrolvtic Capacitor
C310
2.2!,F 2SV
B'P7'7~7- ';I~';-~::J :--
C311 UW
!84 :81 :00 "
C3l2
100!'F 25V
';-~::J:--
C313
FH :61 :14 !70
Ceramic Capacitor
C314
47PF 500V CH-type -t!'7::J:--
C315
FH :61 :21 :20
"
C3 16
120PF
. "
C317
FG:4 1:14! 70 .
C3 18 47PF SOV(K) ,
C319
UW :82 :81 :00 Electrolytic Capacitor
322
100!'F
10V
';-~::J:--
C323
UW!8S :81 !OO "
326
100!'F 3SV ,
C327
UJ :47 :82 :20
.
C328
220!'F 63V
·
C329
UA :2S :S1 :00
Mylar Capa citor
C330
O .I!,F SOV(J)
7{'7-::J:--
• C331 FC :04 :4 1:00 ,
334
C335
FH :61 :1S :60
Ceramic Capaeiter
C336
O.OI!,F 400V(K)
56PF 500V CH -type
"
-t!'7::J:--
C337
UA :2S :S1 :00
Mylar Capacitor
C338
O.1!,F 50V(J)
7{'7-::J:--
C339
UW:86 :81 :00 Eleclrolyric Capaeiter
342
100!'F SOV
';-~::J:--
C343
FC :04: 4 1:00
Mylar Capaeiter
C344
0.01!,F 400V(K)
7{'7-::J:--
C345
FZ :00 :32 :70 Electrolylic Capaeiter
C346
15000!'F 56V
71J ' ;I~';- ~::J;"-
C347 FG :41 !21
:00
Ceramic Capaeiter 1 OOPF 50V(K) -t!'7::J:--
C348 UW:83
:72 :20
Electrolytic Capacitor
22!'F 16V
';-~::J:--
C349 UW:86
:64 :70
n 4.7!,F
50V
·
* C350 FC :04: S1:00
Mylar Capae iter
0.1!'F 400V(K)
7{'7-::J:--
C351 UW:S6 :S2
:20 Electroivtic Capacitor 0.22!,F SOV ';-~::J:--
C352 FM :11 :71
:00
" 10!'F
50V
B,P::J ;..-
C353 UW:83
:72 :20
" 22!'F 16V
';-~::J:--
C354 FM :39 :8 1:00 " 100!'F 16V Z::J:--
C355 UW
:86 :71 :00 " 10!'F 50V
';-~::J:--
C356 FG :4 1:2 1:00 Ceramic Capacitor 1
OOPF 50V(K) -t!'7::J:--
C357 FG :44 :4 1:00 , 0.01!,F
50V (Z} ,
C358 UW:96 :S4 :70 Electrolytic Capacitor 0.47!,F
50V ';-~::J:--
C359
FG :4 1:12 :20 Ceramic Capacitor
C360
22PF SOV(K) -t!'7::J:--
C361 UA :2S
:42 :20
Mylar Capacitor
C362
0 .0221'f SOV(J}
7{"7-::J:-- W
C363 FG :41
:14 !70
Ceramic Capacitor
C364
47PF SOV(K) -t!'7::J:--
C365
UA :25 :4 1:00
Mylar Capae iter
C366
0.01!,F SOV(J)
7{'7-::J:--
C367
UA :25 :S1:00 ,
369
O .l!,F
, "
C371 UA :25:42; 20 .
C372
0 .022 !,F SOV(J) " W
C3 73 UA :25 :4 1:00
..
C374
0.01!,F SOV(J) "
. L301 GD ;90
:03 :40 Coil, out put
L302
1.S!,H
77 ~ 7';1 ~::J{ JL<
R301 HJ :3S:S2 :20 Carbon Resistor
R302
2200 RD25 l1-;f.:--l*tt
R303
HJ :35 :84: 70 "
-306
470KO
, "
R307 HJ :3S :64
:70
"
310
4.7KO " ,
R311 HJ :3S:44 :70 "
R312
470
., ,
R313
HJ :35 :42 :20 ,
316
220
" "
R3l7
HJ :35 ;7 1:80 "
R318 18KO " "
R319 HJ ;3S:71:50 "
R320 15KO ., "
R321 HJ :3S:63: 90 "
R322 3.9KO " "
R323 HJ :35 :S2:20 "
R324
2200
, "
• : New Parts ( fi llll.ß)
-- ------------------------------ -6

A-760 I1
Ref .
No.
Part No.
Description
Oll!
"
0-
-ß)
Remarks
Common
model M
rkets
I~~ ~~
HJ :35 :82 20
Carbon Res ister
220K O RD25
tJ-*:.-~tit
I~~~~
HJ :3 5; 81
50
n
150KO
, "
A329
A330
HJ :35:6560
" 5.6KO , "
A331
A332 HJ
:35;51 00
"
1000
, ,
A333
R334
HJ :72:61
00 Metal Oxide Film Resister 1 K02P
Dii~tit
:
R335
- 338 HJ :35 :4:2
70
Carben Res ister 270 RD25 tJ-*:.-llttit
R339
R340
HJ :35 :68 20
,
8.2K O , ,
R341
R342
HJ ;35 ;6 1 20
,
1.2KO
. "
R343
R344
HJ :35:4820
.
820
. "
R345
R346
HJ :35 :52 70
,
2700
, n
R347
A348 HJ ;35: 53
30
,
3300
n ,
R349
R350
HJ :35;7470
,
47KO
, "
R351
R352
HV :35 :5270
Flame Preet Carben Resister 270n RDF25SF
::r;~'H:tJ-* :.-llttit
R353
R354
HJ:35:5270
Carben Resister 27012 RD25 tJ-*:.-llttit
R355
- 35 8 HJ
:35:72 70
" 27KO n "
A359
- 362 HV
:35:4470
Flame Preet Carben Resister 47n
RDF25SF
::r;~'H: tJ -* :'-~m
R363
R364
HJ ;35 :61
50
Carben Res ister
1.5K n RD25 tJ-*:.-1!tm
A365
R366
HJ :35:52 70
u
2700
" .
R367
R368
HJ:35 :6330
u 3.3KO " "
R369
R370
HJ:35:71 20
n
12KO
" "
R371
R372
HJ:35:5220
"
2200
u "
R373
- 376 HJ
:35 ;6390
" 3.9KO " ,
R377
R378
HJ :35:5470
"
4700
u "
R379
-382
HL:71 :61
80
Metal Oxide Film Resister 1.8KO 1P Diillttit
R383
-386 HJ
:35:71
20
Carbon Resister 12KO RD25 tJ-*:.-llttit
R387
R388
HJ :35:63 90
" 3.9KO " "
R389
R390
HJ :35 :61
50
" 1.5KO " "
R391
- 396
HV:35 :61 20
Flame Preef Carben Resister 1.2Kn
RDF25SF
::r; tI! 1t 1.1 -* :.-1!tm
R397
R398
HV:35 :5270
H
2700
H H
R399
R400
HV :35 :58 20
"
8200
" .
R401
R402
HJ ;35:64 70 Carben Res ister
4.7KO RD25 lJ-*:.-lltm
R403
--406 HJ
:35:48 20
n
820
H ,
R407
R408
HV:35:41
20
Flame Preef Carben Resister 12n
RDF25SF
::r;~1t tJ -* :.-1!ttit
A409
R410
HV:35 ;51 00
'/
1000
" ,
R411
--414 HV
:35:43 30
n
330
tr n
R415
--418 ' "
HV ;35 ;3470
n 4
.70
" "
R419
--422 HZ
:00 :2390 Metal Plate Res ister 0 .220 3P RGC3
ii Ji t& lllm
R423
R424
HJ :35;61 80
Carben Resister 1.8KO RD25 lJ-*:.-1!tm
R425
R426
HJ :35:54 70
u
4700
" .
R427
R428
HJ:35;41
00
.
100
H ,
R429 HJ
:35:6120
" 1.2KO " ,
R430
HJ:35:7470
,
47KO
, ,
R431
HJ:35 :6120
R432
./ 1.2KO n ,
~~~
HV :35 :3220 Flame Preef Carben Resister 2.2n
RDF25SF
::r;~1tlJ -* ;,-lltm
R437
R438
HZ:00:2400
Metal Plate Resister O.22n 5P
RGC5
iiJit&llttit
R439
R 44 0 HU:57
:5360
Metal Film Resister 360n
SN14K2E(FI
ii Ji!aia 1!t tit
1~11~
HL ;33 :3470
Metal Oxide Film Resister 4.7122P Dii1!ttit
* :New Parts (#illll_'lo)
7----------------------------------