Technics SX-PX554 Service Manual page 80

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B
FJASP
+15V
IC1
+15V
REGULATOR
-15V
IC2
-15V
REGULATOR
+VCC
CN5
CN6
+VCC
CN3
T1
D7,8
POWER
TRANSFORMER
-VCC
D5,6
IC3B IC5,6,9,10A
IC3A IC7,8,9,10B
MIXING EQUALIZING
IC4A Q7,8
Q9,10
IC4B
HEADPHONE
AMPLIFIER
Q20
IC12
PHOTO
COUPLER
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CN2
IC11B
Q11,12,15,16
IC11A
Q13,14,17,18
POWER
AMPLIFIER
CN4
+15V
JK7
L
LINE OUT
JK8
R
JK5
L
AUX IN
JK6
R
JK1
PEDAL IN
JK3
OUT
MIDI
JK2
IN
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CN1
SW1
POWER
SWITCH
JK9
AC CORD
SP3 (Lch)
6.5cm; 8
CN7
SP1 (Lch)
14cm; 4
CN8
SP2 (Rch)
14cm; 4
SP4 (Rch)
6.5cm; 8
I
HP
POWER
CN1 CN2 INDICATOR
JK1
1
HEADPHONE
JK2
2
G
PKB
CN1
SOFT SOSUTENUTO SUSTAIN