Yamaha AV-80Y User manual

STEREO AMPLIFIER
AV-80Y
SERVICE MANUAL
r
-----.:-------
o
=
Hmodel only
-
0-
WI
····
. . . . ':
• • • • I-
o • • • 0-
I • • • I-
I • • • .-
- - - - -
................
• CONTENTS
IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAlIA Retailers and their senice personnel.
It has been assumed that basic service procedures inherant to the industry, and more specifically YAMAHA
Products, are already known and understood by the users, and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product
may result in personal injury, destruction
of expensive components and failure of the
product to perform as specified. For these reasons, we advise
all YAMAlIA product owners
that all sezvice
required should be performed by an authorized YAMAlIA Retailer or the
appointed service rq>resentative.
IMPORTANT: The presentation or sale of this manual to any individual or finn does not constitute
authorization, certification or recognition
of any applicable technical capabilities, or
establish aprinciple-agent relationship of any form.
The data provided is believed to
be accurate and applicable to the unites) indicated on the cover. The reserch,
engineering, and service departments
of YAMAlIA are continually striving to improve YAMAlIA products.
Modifications are, therefore, inevitable and specifications are subject
to change without notice or obligatim to
retrofit. Should any discrepancy appear to exist, please contact
the distributor's Service Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your
body may have accumulated
by grounding yourself to the ground buss in the unit (heavy
gauge black
wires connect to this buss).
IMPORTANT: Tum the unit OFF during disassembly and parts replacement. Recheck all wolk before you
apply power
to the unit.
TO SERVICE PERSONNEL 1
REAR PANELS
1-2
SPECiFiCATIONS....•.•..•.......................•...•.......•...•.•..•...•3
BLOCK DIAGRAM •......•....•.•.•...........•.....•...•....•.........
4-5
INTERNAL VIEW .....•.•....................................................6
DISASSEMBLY PROCEDURES
6-7
ADJUSTMENTS .••.•..........•........................•.•.....•.••.•.....•..7
11 003801
PRINTED CIRCUIT BOARD 8-14
INTERCONNECT WIRING DIAGRAM 15
~·COM DATA 16
WAVEFORM
OF TEST POINT 17
SCHEMATIC DIAGRAM 18-19
PARTS LIST ...................••..................•..•................
20-27
REMOTE CONTROL TRANSMITTER 28
YAMAHA
YAMAHA CORPORATION
Po. Box 1, Hamamatsu,Japan
1.4k-346 13 ~ Printed in Japan. '91 .2

AV-80Y
• TO SERVICE PERSONNEL
1. Critical Components Information.
Components having special characteristics are marked and
must be replaced with parts having specifications equal
to
those originally installed.
2. Leakage Current Measurement (For 120V Model Only).
When service has been completed, it
is imperative that you
verify that all exposed conductive surfaces are properly insu-
lated
from supply circuits.
•Meter impedance should
be equivalent to 1S00 ohm shunted
by
0.1SJlF.
•Leakage current must not exceed O.SmA.
• Be sure to'test for leakage with the AC plug in both
polarities.
AC LEAKAGE
WALL EQUIPMENT
TESTER OR
OUTLET UNDER TEST EQUIVALENT
@1 ~ I~ ~ I
INSULATING
TABLE
•POLARIZATION (U, Cmodels only)
This amplifier product
is equipped with apolarized alternat-
ing-current line plug
(a plug having one blade wider than the
other). This
plug will fit into the power outlet only one way.
This IS asafety feature.
1
WARNING: CHEMICAL CONTENT NOTICEI
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic
and/or plastic (where applicable) components may also contain traces of chemicals found by the
California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects
or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR
MOUTH FOR ANY REASON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale sol-
der fumes or expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your
hands before handling food.
• REAR PANELS
.... Umodel
@
,....--""'''''''''
_-CO-_-"--LD-~_ w~ ....... N<l Lt.~&
..... ~~VlInHIWIT.OI'~ra:: ......
_ .. ..:- _ .. -- ~~ :eo:v 80Hz -~=-
~.Il&8Cf1U""'~lWO~
@
~~~~~~~~~ ~~=~=:~===o
E~~:"=~
"-IC~-
~@~~@~@~~@~@~ OD ...... __ ".ao_
o[[]]o
~:r-
e~~~p1~~~~ @,
[J
G -~Q---~
~
@
~~~_::::.
~~ ~@ @~!;.~@
o[[]]oo
=-=-=-
.-...,
@ri'l @@
~
U
.... Cmodel
@
-""'...,..,.
-_-CO-_-_-LD-~- w~ ....... N<l Lt.~Lh
I I I 11/-80 Y CAUTIOM
@
~~~~ii)~ii) ~~=;:~;==o
_IC~-
~@~~@~@~~@~@~ OD ........ _".ao_
o[[]]o
~:r-
e~~~p1~~~~ @,
[J
~:~[ ~j4i~;
~
@
:§)~_ ••
o[[]]oo
=-.::--=-
=--==-
.-...,
IM\ 1M'
@
._-
@
UU

TRmodel
TAmodel
THmodel
AV-80V
@
.--""...",..
"CJJIG-CO-1\.IIe-""'-LD-~-)1~ =~
~
.... .. eM .... .. GUt' 1IQ/J20/22Q11.a V'DU1I
@
@
G~~~~~~~~
«XJYtM1'T8 IOI.:JHa ""'"
@5. @5. @5. @5. @5.
~~
o~ :I~l~
~~
8~~~~~~~~ @
,@
~
~~[-~j~~o;@
~
~~-~. o[]oo
=:;;~
........,
(i'i\ m@--- @
LJ LJ
@@
2

AV-80Y
• SPECIFICATIONS
•AUDIO SECTION •VIDEO SECTION
1Vp-pl75n
1
SOW
390VAl300W
400W
200W
400W
100W max. (Total)
100W max.
100W max. (Total)
1A
max. (Total)
435 x122.5 x304.7
mm
(17-1/S" x4-13/16" x 12")
7.4kg (16 Ibs 5oz)
AC120V, 60Hz
AC240V, 50Hz
AC230V, 50Hz
AC 11 0/120/220/240V, 60/5OHz
"Specifications subject to change without notice.
Dimensions (WxHxO)
Weight
C•.......•......•.......Canadian
model
U.•.....•......•........ U. S. A. model
AAustralian model
H...........•.......•...North European model
RGeneral model
Video Signal
Input/Output
Power Supply
U, Cmodels
Amodel
Hmodel
Rmodel
Power Consumption
Umodel
Cmodel
Amodel
Cmodel
Amodel
AC Outlet
Switched x 3 (U,
R, H)
Switched x 1 (A)
Switched x 3 (C)
•GENERAL
50
SOmV
0.25mV
15mV
1.6dB (U,
C)
100W (U, C)
70W (R, A)
55W (H)
2.5mV/47kn
150mV/47kn
150mV/1.4kn
60W/70W
(H)
6n
Minimum RMS Output Power Per Channel
20Hz-20kHz, 0.15%
THO, sn
0.3% THO,Sn
0.3% THO, sn
Dynamic Power Per Channel
(by IHF Dynamic Headroom measuring method)
sn 145W (U, C)
90W (R, A)
60W (H)
1S0W (U, C)
100W (R, A)
75W (H)
Dynamic Headroom
sn
IEC Power
1kHz, 0.1%
THO, SQ/6n
Damping Factor
1kHz,
sn
Input Sensitivity/Impedance
Phono
MM
CD etc.
Input Sensitivity (New IHF)
Phono
MM
CD etc.
Maximum-Input Signal
1
kHz, 0.02% THO, Phono MM
Output Levelllmpedance
Rec Out
Headphone
Jack Rated Output/Impedance
0.1%
THO, RL=sn 1S0mV/150n (U, C)
220mV/100n (R, A)
1S0mV/100n (H)
ID
,
,.,
T
!
=
Unit :mm (Inch)
lJ
. ......
( 17-1/8")
- ~.
-
CJ
~~~~~~~
0'ID
o,II'!
=
ION
0
ccccc 0 0
IN
=
!-
I.~
I.
I
435
I ~l-
. ~ ~
•DIMENSIONS
79dB
92dB
200J,LV
OdB±0.5dB
55dB/50dB
55dB/50dB
0.1%
0.05%
(U, C)
0.1% (R, A)
0.1% (H)
-o.5dB±O.5dB
Frequency Response
20Hz-20kHz,
CD etc.
RIAA Equalization Deviation
Phono
MM
Total Harmonic Distortion (20Hz-20kHz)
Phono
MM to Rec Out, 3V
CD etc to Speaker Out, 50w/sn
35w/sn
22W/Sn
Signal to Noise Ratio (IHF-A-Network)
Phono
MM (5mV Input Shorted)
CD etc. (Shorted)
Residual Noise (IHF-A-Network)
Channel Separation (Vol.
-30dB)
Phono MM input shorted 1kHz/10kHz
CD etc input 5.1 kn terminated 1kHz/10kHz
Graphic Equalizer
Control Frequency 60Hz, 150Hz, 400Hz, 1
kHz,
2.5kHz, 6.3kHz, 16kHz
Boost/Cut ±10dB
Continuous Loudness Control (Level related equalization)
Attenuation
-20dB (1 kHz)
Gain tracking error
(OdB-60dB) 3dB
3

•BLOCK DIAGRAM
PHONO
CD C(')l------J
f[TAPE
VCR (Ol~----- ..... -----___t ........
MUTE
ICIO
@
+5
MOTOR
CONTROL
ICIO
@,@ lca
~[TAPE
VCR cO}-------.---------'
XL1
D
FUNCTION
LED
05,8-10,16,17
R392
SYSTEM
...-----\r\fv-----------------('lO CONTROLLER
IC10
RECEIVER UNIT
U1
~ +f
REMOTE
COT~~N~ ~
LD {rtjl----~
VCR PB
VCR REC
PHONO
MONITOR
o
UJ
o
>
..J
~
~
z
o
u
UJ
~
o
~
UJ
0::
4

AV-80Y
YST
SELECTOR
SW201
MAIN
H.P.AMP
LOUDNESS BALANCE VOL.
IC201A
IC202A
POWER AMP
RY201
YST
EO
CIRCUIT
IC221A L
R
R
-+5
EO UNIT
IC20aA
MOTOR a
CONTROL
ICIO
LEVEL
@.@
ICa
METER
IC9
KI- K4
I NPUT SELECTOR
01",,03 &
---:;.;.....:....=.;=--_.~I POWER SW
SW2-8
R •
+A
1....- .......
PHONES
POWER SWITCH
DRIVE
0246
•MOTOR CONTROL
SYSTEM
ICa @@
CONTROLLER
IC10
MUTE
T201
SUB
II
POWER
+12
SUPPLY
0210
POWER SUPPLY
&
F201
)J-COM RESET
±B
POWER SUPPLY
09,10
±1~
0203,204
06,7
±9
I C204-207
45

AV-80Y
• INTERNAL VIEW
• DISASSEMBLY PROCEDURES
(Remove parts in disassembly order as numbered.)
1. Removal of Top Cover
Remove 5screws ( <D ) in Fig. 1, and slide the TOP
Cover back.
2. Removal of Front Panel
Remove 6screws ( CV ) in Fig. 1, and pull the Front
Panel toward.
oPOWER TRANSFORMER
f) MAIN CIRCUIT BOARD (2)
oMAIN CIRCUIT BOARD (1)
eJl-COM CIRCUIT BOARD (9)
(3 Jl-COM CIRCUIT BOARD (1)
(3 MAIN CIRCUIT BOARD (4)
oJl-COM CIRCUIT BOARD (3)
Top Cover
6
3. Removal of Bottom Cover
Remove 4screws (® ) in Fig. 1.
Fig. 1

•Installation of Top Cover
<Example of Incorrect Installation>
<Example of correct Installation>
Fit the lug of the Top Cover into the
gap between the Panel and Sub-
chassis. Turn the Top Cover downward.
-- .\
As the Top Cover hits hard, it will get
damaged. Fig. 2
Note 1
<D Place the lug of the Top Cover
on the Sub-chssis.
~ Note1: The side of the Top Cover
is further inside than the
Panel upper rib.
Fig. 3
Note 21 (2) Tum the Top Cover downward.
I Note 2 : It's supporting point should be
as in above
st~p <D
Fig. 4
.. @Slide the Top Cover forward.
""---.
,-,-It
Fig. 5
• ADJUSTMENTS
7
•Idling Adjustment
To stabilize operation of the amplifier, turn ON the power
in the no-signal state and wait fortwo minutes before the
adjustment.
Adjust VR201 (L ch) so that the voltage at both R255 (L
ch) becomes DC1.5mV±O.3mV.
Adjust VR202 (R ch) so that the voltage at both R256
(R
ch) becomes DC1.5mV±O.3mV.
..ilDD1l
.0
non
..,
®
00 VR20, (lch)
VR202 (R ch)
Eel
EeJ
c:::J- c:::J
c::r
-r::=J-
R255 (L ch) R256 (R ch)
([[[[[[[~~[[[[[[[

_____ A B ---I.- C ---I..- D --'L
• PRINTED CIRCUIT BOARD (Foil side)
1
Note) 3t~im : Component side REMOTE CONTROL
PHONO
MAIN C. B ( 1 )
• Semiconductor Location
Ref. No. Location Re. No. Location
ef. No.
Location
o 201
02 IC220 G5
o 216
E4
o 202
03
IC221
85
0217
G3
2o
203
G2 0201 02
o 218
E3
o 205
E3
0202 C3
0219
G3
o 206
F3 0203 C2
0220
F2
o 215
G3
0204 C3 0221
F2
o 216
03 0205 02
0222
F2
0217
F2
0206
03
0223
F2
IC201
F5 0207 E4
0224
E2
IC202 F5 0208 E4
0226
F2
IC203
02 0209 G3
0227
E2
IC204 E2 o 210 03 o
229
F2
IC205 E3 0211 G3 0230
02
IC206 02 0212 03 0232
C2
IC207
03 0213 F4
0237
C3
IC208
F2 o 214 04
0238
C3
IC219 G5
0215 G4
3
MAIN C. B (4)
.....
0
-YST
SELECTOR -
3:
• CONVENTIONAL
~
·YST-l
Z
·YST-2
~
4
5
z
Ci
::5
:E
o
a:
LL
6
IDLING CURREI
ADJ.
(Rch)
DC1.5mV :to.3mV
FROM : POWER TRNSFORMER -i
8

."
o
:E
m
:xJ
~
:xJ
»
Z
en
."
o
:xJ
==
m
:xJ
IDLING CURRENT
ADJ. (L ch )
DC 1.5mV :to.3mV
IDLING CURRENT
ADJ. (R ch)
DC1.5mV :to.3mV
DEFGH
AV-80Y
TO : JlCOM ( 9 )
TO : JlCOM ( 1 )
VI DEO SIGNAL
+®+
LD
VCR MONITOR OUT
IN OUT
POWER TRNSFORMER ...... ---
TO:VR BLOCK
-
CD
-
8
-- ....... FROM: jJCOM(3)
9

A
AV-80Y
BcD
• PRINTED CIRCUIT BOARD (Foil side)
1
Note) ~*jij : Component side
CD to @: WAVEFORM OF TEST POINT (See page 17)
J.l-COM C. B ( 1 )
2
3
4
5
6
10
PHONO CD TUNER TAPE LD VCR
TAPE P8 REC OUT TAPE P8 RECOUT
J.l-COM C. B ( 9 )
l"ll(')~~r«
~ IDU5m Jl~ y_ ~.J..J...J..J..J
TO : J.lCOM ( 2) -. ' .-- - --
FROM : MAIN ( 1) ~----'
• Semiconductor Location
Ref. No.
Location Ref. No. Location Ref. No.
Location
Ref. No.
Location
o1 03 014 G4
IC 4 82
a3
02
o2
03
015 F4
IC 5
82
a4
82
o3
G2 020 F5 IC 6
C2
a5
C2
o6
E2 023 G5 IC 8
G2 a7
C3
o7
02 024 04 IC 9
F4
a9
E2
011
G4 IC 1 A2
IC10 C4 .010
E2
012
F4 IC 2 02 IC11
84
011
02
013 G4 IC 3
82
a2 02
012
02
~---"'I- FROM : J.lCOM ( 2)
11

EFGH
VOLUME
Jl-COM C. B ( 3 )
Jl-COM C. B ( 4 )
100·20· 2 . 0.4·0.1 OUTPUT LEVEL
FROM:pCOM(9)~.~~~
_-I
IO
3 .•
o ~ "'T1
0.0 ::D
~O 0
o 3C :s::::
~
--
~ ..... :s::::
- ~
Z
-I
0
~
0
0
"'T1
3C
-I
::D
00
~
-I
==
-
~
0
==
0
0
1=
~
3C
0Z
0
PI.)
i:
~
Q)
-I
::>
:")
:>
=
~
):
JlCOM (8 )
~ ( 1 )
: JlCOM (2)
Jl-COM C. B ( 5 ) Jl-COM C. B ( 6 )
:0 :~COM (5) E;J
I· -PLD REMOTE
CONTROL
VOLUME
-- FROM : JlCOM ( 1 )
11

ABcD
• PRINTED CIRCUIT BOARD (Foil side)
1
Note) x~iIfi : Component side MAIN C. B
(2)
• U, Cmodels
AC OUTLETS _.....-
FROM: AC CORD
2
== a
o
:i.
a
t-
0210
00.
T201
3
TO : POWER TRNSFORMER '4---
MAIN C. B (2)
• A, Hmodels
4
,--~- FROM : AC CORD
TO : AC OUTLET (A ONLY) -----or-----.....
TO: MAIN (7) (H ONLY) -~
'9"""
5
~.
.
-<
: J: m
::E
"y E~
a
0
:i.
a
021~ ACI
t-
°CD
. ~ .
AC2
T201
RE(AI
BE(H)
TO : POWER TRNSFORMER
12
6

DE
MAIN C. B (2)
• R model
AC OUTLETS
F G
-~- FROM: AC CORD
AV-80V
MAIN C. B (6)
• R model
H
:ORD
.,..
==
o
o
=i
o
t-
TO : POWER TRNSFORMER :I===~ __
MAIN C. B (7)
• H model
AC OUTLETS
VOLTAGE
SELECTOR
12
FROM : MAIN ( 2) -.--'
13

/
A
AV.80V
BcDE
1 • PRINTED CIRCUIT BOARD (Foil side)
2
3
4
5
Note) ~*iii : Component side
~-COM C. B ( 7 )
• H model
.L FROM: J.l-COM ( 1)
[1F I
STANDBY
~-COM C. B ( 2 )
MAIN C. B ( 8) I
FROM : MAIN ( 1)
RY
TR
L
G
R
+15
PHONES
EQ. UNIT
(SLIDE POTENTIOMETER BLOCK)
~-COM C. B ( 8 )
6
TO : ~COM (9)
7
POWER
14

• INTERCONNECT WIRING DIAGRAM
I MAIN C. B 11) I
'- .!
I ~-CON c. 813) I
I
~ -CON C. B(91 I
TR '20
r···················l
L ••••••••• __ •• __ •••• ..:
( U.C.A.H )
<>--=-_---;'_" '...,,- ----- -, PIlE··
( R )
~
~ •...... 'i----'-=-----+-:
'G"
MAIN
C.8(21
15
~
7

AV-80Y
.Ie DATA
IC10 : lC6505C-4277
4 bit Il-COM
PAO-5 64.4 BIT
PC
RAM
STACK I
1024.11 BIT
ROM
PA2
PAl
STACK 2
PA3
PAO P80-5
STACK 3
PBO
vool+5VI
STACK 4
PBI
(NT
PB2 HOLD
PCO-5
PB3
PII
PCo
o Plo
PCI
PH3
PDO-3
PC2 PH2
PC3
PHI
PDo
PHO
PEO-3
POI PG3
PD2 PG2
PD3 PGI PFO-5
PEO PGo OINT
PEl'
PF3
~OSCI
PE2
PF2
osc OSC 2
PE3
PF I
RES
PFO
HOLD
---<> RES
TEST
OSC 2
--0 TEST
IOVIVSS
OSC I
PHo-3
P10-5
--01100
PGO-3
--oIlSS
Pin No. Name I/O
Function
Pin No. Name I/O Function
1PA2 INot used
24
PFO 0PHONO
2PA3 IHlevel (TAPE MON)
25
PF1
0CD
3
PBO
I
K1 }
26
PF2 0TUNER Function control
4
PB1
I
K2
27 PF3 0VDP J
(H: ON, L : OFF)
5PB2 IK3 Key input
(H :ON)
28
PGO
0TAPE
.6 PB3 IK4
29
PG1
0VCR
7
PCO
I/O 01 }30 PG2 0Not used
8
PC1
I/O
D2 Key scan signal (H :Active) 31
PG3 0Power control signal
(H :ON)
9PC2 I/O D3 32
PHO
0Volume
Up control signal
10 PC3 I/O PLO PHONO PLAY/CUT Control signal 33
PH1 0Volume Down control signal
11
PDO
I/O Not used 34 PH2 0
TU2} .
12
PD1
I/O
COO}
35 PH3 0
TU1 Tuner control signal (Not used)
13 PD2 I/O
CD1 CD control signal (Not used) AMUTE Audio Muting control signal
36 PIO
0
14 PD3 I/O CD2 (L :Active) (Not used)
15
PEO
I/O
TPO}
37
PI1
0MUTE Muting control signal
(L :Active)
16
PE1
0
TP1
HOLD
~-COM Back up control
TP2 DECK control signal (Not used) 38
17 PE2 0I
(L: Back up, H : Active)
18 PE3 0TP3 39 INT I
+SV
19 RES 0Reset input 40 VDD -
+SV
20 TEST I
LSI test terminal (GND)
41
PAO
IRemote control Data input
21
VSS -GND Power ON/OFF back up
22 42
PA1
I
(H :Back up, L : Ever ON)
OSC1 -
~-COM clock circuit 400kHz
23 OSC2 I
16

AV-80Y
• WAVEFORM OF TEST POINT
Point G): 01, 02
(Pin 7and 8of IC1 0)
V : 2V/div H : 2msecldiv
DC range 1 : 1 probe
Point@): OSC
(Pin 23 of IC10)
V: 2V/div
DC range H :
2~sec/div
1 : 1 probe
POlnt@: 03
(Pin90fIC10)
V: 2V/div
DC range H : 2msecldiv 1 : 1 probe
Point @: +5, RES
(CH 1 : Emitter of 09 CH 2 : Pin 19 of IC10)
V : 2V/div H : 200msec/div
DC range 1 : 1 probe
17
CH1+
CH2+
(
t
When the power cord is connected to AC outlet.
(This waveform is not available
by the power switch ON.)
CH1
CH2

-~ I
/
3
TU ER
PJ2B
"
a:
tn
a: BU4066B
or LC4066B
or MC 14066BCP
(
TUNER
LD
PJ3A
PJ3B
L((}+ RI7
Y lK
Rrl R20
~(Qt lK
CD
a:
m
a:
REC
VCRI 7"
TAPE
VCRI
BU4065B
or LC4066B _
INPUT
SELECTOR
(T1
ru
a:
CD
ru
a:
m
ru
a:
IK
IK
R31
R32
lK
IK
R24
R30
L(()+ R21
Y lK
PJ2D R
PJ2C
PJ2E L
PJ2F R
PJ7C L
PJ7B R
PJ7D R
PB
REC
TAPE
5
4
6
7
1_
k
1=
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I::: .
(:::: .
RESISTOR
REMARKS
PARTS NAME
NO MARK
CARBON
FILM RESISTOR
( 1 15W )
0 CARBON FILM RESISTOR
( 1I 4W )
6. METAL OXIDE FILM RESISTOR
&.
METAL FILM
RESISTOR
[g)
METAL PLATE RESISTOR
~
FIRE PROOF CARBON
FILM RESISTOR
0 CEMENT MOLDED RESISTOR
~ SEMI VARIABLE
RESISTOR
I!il
CHIP RESISTOR
CAPACITOR
REMARKS
PARTS NAME
NO MARK
ELECTROLYTIC CAPACITOR
ff
®
TANTALUM CAPACITOR
NO MARK CERAMIC CAPACITOR
@
AXIAL READ CERAMIC CAPACITOR
@
POLYESTEL FILM CAPACITOR
0 POLYSTYRENE FILM CAPACITOR
H
CD MICA CAPACITOR
® POL YPROPYLENE
FILM CAPACITOR
eJ
SEMICONDUCTIVE CERAMIC CAPACITOR
8PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
1S5133
MTZJ5.6A
MTZJ5.6B
M5218LV
~1~
NJM4558S BA62~
BA6'44 ~ • '"
yV. ,
LC406&B LBl294
BU4066B
MC1~~, ,,~.
1

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1•
SCHEMATIC DIAGRAM
Condition: Set the Input selector to CD position.
--------------
-- - --- - --- - --- - --- - --- - --- - --- - --- - ---
~ R39
MUTING
Rr
,
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I ce8'8'0.8
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or MC14066BCP PHDND
~~:'::::':::::::.....t-.....:j!~l-;l!-I +-------'-'-=~
r--------1-----t--t-"-i
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CD
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PJ2A L
3
TUNER
PJ2B
R13
lK
R~ R16
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IT
tD
IT
BU4066B
or LC4066B
or MC 14066BCP
TUNER
I~
PJ3A
LD
PJ3B r
L((}f R17
1
1K
R ~ R20
1(27 lK
co
IT
CJ1
IT
PJ2E L
PJ2F R
PJ2D R
TAPE
BU4065B
or LC4066B _
BU4066B
or LC4066B
f\J
f\J
IT
(T')
f\J
IT
IK
lK
R24
L(()t R21
Y lK
PJ2C
PB
REC
TAPE
4
5PJ7B R
VCRI m
PJ7C L
REC
PJ7D R
R30
lK
R31
IK
R32
lK
co
Ii'
CJ1
f\J
IT
6