Technics SUV 470 Schematics

Page 1

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1 I 2 I 4 l 5
VI 1 m SCHEMATIC DIAGRAM m PHONO EQ/TONE AMP cmcu
(Parts Hat on page 20~22)
.
A (This schematic diagram may be modified at any time with the
development of new technology)
Notes:
I51 : Power switch in on" posrtion.
05101 : input selector switch in "phone" position.
- .5102 : Recording output selector switch in "tape 2/
DAT>1" position. 2,,
4 05103-1 : Phono cartridge selector switch in MM position.
05103-2 : Mode selector switch in stereo position.
05100-3 : Loudness switch in "of!" position.
B 03301 : Tone control switch in "detest" position.
05302 : Power amplifier direct switch in off" position.
05501-1 : Speaker (A) selector switch in "on" position.
05501:) : Speaker (3) selector switch in on" position.
: Positive voltage lines. -
m : Negative voltage lines.
_ m . Phone Signal (Lch)
m: . Recording Signal
Olndicated voltage values are the standard values tor the unit
measured by the DC electronic cirwit tester (high-impedance) with
the chassis taken as standard. Therefore. there may exist some
C errors in the voltage values, depending on the internal impedance
of the Dc circuit tester.
Important safety notice:
Components identified by A mark have special characteristics
Important for satety. When replacing any at these components. use
only mamlacturer's specified parts.
" 'Cautlonl
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
Cover the parts boxes made oi plastics with aluminum toil.
'Ground the soldering iron.
D Put a conductive met on the work table.
'00 not touch the legs 0th or LSI with the fingers directly.
. . l
. l
E
l-a en
um. I l
[-L ch
REC OUT
[- a en
P" mom I
- ,-L on
PLAY BACK
l-a an
mm. .
- L on
REC OUY
7 an
F TAPEZ/DAY urea-z I
,- L on
P LAYBACK
- a ch
nun: l
r- L 'ch
POWER AMP
D I REGAL R on