Pioneer SX-1080 Service Manual

SX-1 080
7. BLOCK DIAGRAM
ANTENNA
p75n -
POWER AMP
METER AMP
POWER AMP
IN
PRE OUT
TONE CONTROL
■ n K
v_ _y
SWITCHES
1-T4PE
S 1
POWER
M —
OFF
S 16
FM multipath ON
-m
S t
RELAY ON —
sn
Sit
LOW Filter
l5Hi
— OFF
Sj
TAPE DUPLICATE ON —
SIl
S 18
HIGH F .'ER 6I(H2
-fiEL
S4 TAPE MONITOR 1
ON —
m
Si>
BASS T'JRN OVER
20OMi
— 4D0Mi
Ss
TAPE MONITOR 2 ON —
m
Sto
treble turn over
SkHi
— 2.5liHt
S A
MODE
STEREO —
MONO Sti TONE
ON
S :
MUTING -2098 —
fi£F Sii SPEAKERS A
ON
Si LOUDNESS
ON —
Q££
Si3 SPEAKERS B
ON
-0£i
Sy
AM
ON —
QE£
Sio
FM Qtf —
OFF
Sti
PHONO 1
ON — OFF
PHONO 2 •'MIC
ON —
afi
Sn
AUX
ON —
m
Sl4
FM DE-EMPHASiS
75>iS — 25yiS
Sn
FM MUTING
OFF
RCC PLAr REC PLAY
J Ltapf 9J
JAMP
PROGRAM I NO
FM AH AUK PKONO
POWER AMP IN
PRE OUT
POWER SUPPLY
POWER AMP
PROTECTION Assy
Sioy S» y Sis ^ 5i2 ? Sii 9
METER AMP ]3V -
TONE CONTROL 33V
METER AMP -13V
EQUALIZER aPOWER AMP 23V
EOUALIZERa PO»ER AMP -23V
' POWER AMP 60V
PROTECTION a POWER AMP -60V
! PROTECTION Assy
POWER AMP 62V
POWER AMP -62V
DIAL SCALE LAMP
IB

Pioneer SX-1080 Specifications

General

Total Harmonic Distortion	0.1% (at rated power)
Tuning Range	FM, MW
Damping Factor	30
Input Sensitivity	2.5mV (MM), 150mV (line)
Output	150mV (line), 1V (Pre out)
Speaker Load Impedance	4Ω to 16Ω
Frequency Response	5Hz to 100kHz
Signal to Noise Ratio	90dB (line)
Semiconductors	4 x FET, 6 x IC
Power Output	120 watts per channel (8 ohms, 20Hz-20kHz)