Advertisement
4. "SCHEMATIC DIAGRAM
(—
TUNER
ASSEMBLY
AWE1076
QTOt:
FM
RF
AMP
FM
UNBAL
1750)
FM
BAL
(3000)
AM
LooP
ANTENNA|
1. RESISTORS :
Indicated in O, 1/4W, 1,/8W, +5% tolerance unless otherwise
noted k;kOQ,M:MQ,
(F); 41%,
(G); £2%, (K): £109,
(MD;
£20%
tolerance.
2.
CAPACITORS :
Indicated in capacity (uF) /voltage (V) unless otherwise noted
Bp: pF.
Indication without
voltage
is 50V except electrolytic capacitor.
3. VOLTAGE CURRENT :
J: OC vottage
(V) at no input signal.
mA:
OC
current
at no input signal.
4.
OTHERS
=: Signal route.
@ : Adjusting
point.
The A mark
found
on
some
component
parts
indicates
the
importance
of the
safety
factor
of the part. Therefore, when
repiacing, be sure
w
use
paris uf idenial designation.
3K marked
capacitors and resistor have parts numbers.
This is the basic schematic
diagram, but the actual circuit may
vary due to improvements
in design.
Q704,Q705:
BUFFER
FM MIXER
100
SWITCHES
(Underline
indicates
switch
position)
Outside
of PC board
IMPEDANCE
SELECTOR
LESS
THAN
8
-8Q
OR
MORE
S2:
VOLTAGE
SELECTOR
110-120V-220-240V (SD/G type only)
$3:
VOLTAGE
SELECTOR
240/120-127/110/220V
(SD/G type only)
$4: DE-EMPHASIS
75 —50pS
TUNER
ASSEMBLY
STATION
10-30
u COM
DISPLAY
ASSEMBLY
TUNING +
FM
TUNING AUTO/MANUAL
REAR
LEVEL +
BALANCE L
TREBEL +
BASS+
TUNING —
AM
TUNING DIRECT ACCESS
R706
ww
R724
seat ager
Q751-Q753
Q703, Q721
Q704, Q705
Q773:
AM +B
ON/OFF
O773)
L733
:
STATION
CALL
+1
(SD/G type only)
+ MUTING
:
VCR
NOISE
FILTER
AN7470P
LA1265S
M7001
Q773, Q775
RN2201
2SA933S
2SK161
22yH
REAR
LEVEL—
4
BALANCE R
TREBLE
BASS—
STATION CALL
*6!
FM MODE AUTO/MONO
SIMULATED
STEREO,
ACOUSTIC MEMORY
STATION
CALL
*2
STATION CALL
*7
MEMORY
i!
: VIDEO
SIGNAL
SELECTOR
ACOUSTIC
SELECT
VIDEO
ENHANCER
STATION
CALL
*3
STATION
CALL
*8!
TAPE2/DAT2
eer |
28C1740S
2SC1740SLN
2SC2668
2SC2786
EMFORCEMENT
MONAURAL AND
EMFORCEMENT
veo STOP
Q7o1
Q77y
D771, 0772
0731-0734,
D751
0701-0703
AM/FM
IF DET
ae
Cea
SD.ADJ
VOLTAGE REG
ITE
SIGNAL
pm
sg
$831
cra?
10/30
Tes
Hey
7 19KHr £90° |
FLIP FLOP
3OKH?
FUP FLOP}
2S8K241
2SK246
SVC321C2-—SP
18S252
1SV147
Q7si:
RIPPLE
FILTER
L702
$701
ASH1027
T711
ATB-O95
L771
ATB-100
T701
ATC 194
L701
ATC-1001
ATC— 1002
L705
ATC— 1003
T702
ATE-063
1732
ATE-1001
T731
ATE- 1002
R735
47%
COMPOS
'SCH MITT]
CIRCUIT
rT
'STEREO/MONO!
CHANGE OVER
'SWITCH
: MEMORY
SCAN
$832:
$833 :
$834:
$835:
$836:
$837:
$838:
$839:
$840:
$841:
$842:
$843:
$844:
$845 :
S846:
S847:
$848:
S849:
$850:
VCRI
TAPE1/DATI
DELAY
TIME
SURROUND OFF
STATION
CALL
*4
STATION
CALL
*9
STATION NAME
VCR2
co
DOLBY SURROUND
TV ANT
VIDEO/TV
STATION CALL
*5
STATION CALL
*10
vOP/COV
TUNER
SURROUND STUDIUM
POWER
STANDBY/ON
PHONO
SIMULATED
SURROUND
Ll
|
F721
ATF—107
F722
ATF-119
F751
ATF-164
F731
ATF1042
L703, L704, L732,
LAU2R2M
L733, L772
L731
LAU472J
TCO771, TC772
ACM-015
VR752
VRTB6VS224
VR751
VRTB6VS472
x771
ASS1005
X731
ATF1027
'S6Op
SEPARATION
Q752—Q754:
MUTING
SP SWITCH ASSEMBLY
$380 (1/3): SPEAKERS A
ON-OFF
$380 (2/3); SPEAKERS B
ON-OFF
$380 (3/3): SPEAKERS REAR ON-OFF
{p
SD/G
TYPE
ONLY
Reo
ee
EE
TO TUNER ASSEMBLY
T5xs
$4
(FM
On
ae). |
fo
z
+ Tae
AM
10k Hr
1
Soys
(aM 5k tm)
aM
9h Hr
°
°
(ae ee
a
©
IC 121 (4/6)
—(676), C122 (1/5) , (4/5):
INPUT
SW
-—-—
139
mia? 638
Q121—
124:
BUFFER
c23
as
ary
cuz
47h
ors
crs
Jarra
ory
cia
ars
1c122(2/5),
He
(3/5):
INPUT/
OUTPUT
SW
=
"
Rt
2
101221676)
SIMULATED
| ON
stenco
[OFF
um ON/OFF by synchronizing with VCR NOISE FILTER
indicator only when FUNCTION Is VCRI on VCR2.
FUNCTION
1e No!
ci2t (Te#164N)
1€122 (TC9164N)
1c101t
M5220P
0181
RDS
PHONO
a
5H
1c402
TC40668P
0283
ROS
cD
Sa EL eT
So
Ic121, 1C122
TCO164N
0276, 0404
RDS
TUNER
aE
TEEN
1c212
TC9184P
0253, 0254.9258
RDS
TAPE /DATI
a
7
Are
1c404
» PC7T8LOS
0285
RDG
TARER "ATE =
<
1C271, 1C272
u PC78M1 2H
0289
RDB
Vert
Sa. 787 ¥ 5
eT
1c273
» PC78M15H
D211, D212
RDS
VoR2
a
sae
Q215, Q409, 0412
= RN1203
0251, 0252.)255-
1ss
Q410,
Q411
RN2203
0257,
D259,0277,
:
:
Q214, 315, 0401
2SA1048
D278, 0284,9290,
0291, D293-p 296,
0319, 0401 -p 403
318
Q311,.Q312
2SA968
0287
1S1
Q271
2SB834
0271-0274
10E
Q309, Q310
28C2238
The
jicator only
chi
change when FUNCTION
ether than VERT or VoRZ.
Brea lbeNaiatS.
<secoase
Da
ae
eer.
WE
AF
Video
Assembly
Q182,
Q211,
Q212,
RY301
ASF
(C401
CX~894
Q273,
Q275,
Q276,
RY271
ASF
1403
CXD1067P
Q316—Q319,
0402,
L301,
L302
ATE
1c181
CX01120P4
Q403,
0406-0408,
T271
AT
1€201,
1C213,
IC251,
MS218LF
Q471
1C252
Q413,
0414
2SC1845
C293
ACe
te2it
M5220L
Q213,
Q404,
A405
28C2878
c291
ACL
Q272,
Q274
2S8C3377
C292
ACI
6286
DSSB20F
C277, C283
ACI
0318
HZS9AL
C289,
C290
ACI
D275
RO1S5ESB
R377,
R378
»
AC
R280
AC
Advertisement
