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15.4. Power Amplifier
: AUDIO OUTPUT SIGNAL LINE
MAIN P.C.B.
MOD DA
MUTE F
F HOP
FROM/TO
SERVO/SYSTEM CONTROL
DC DET AMP
Q2027,Q2029
FAN
Q2033,Q2034,Q2035
CN2010
-
1
CN2010
+
2
FAN
CIRCUIT
D-AMP P.C.B.
CN2012
CN5902
FR IN
3
10
FROM AUDIO
CN2012
CN5902
FL IN
1
12
Q5902,Q5903,Q5905
CN2012
CN5902
MOD DA
10
3
MUTING
CIRCUIT
CN2012
CN5902
MUTE F
5
8
5V
QR5900,QR5901
CN2012
CN5902
Q5901
FHOP1
INVERTER
6
7
SWITCH
5V
-30V
CN2012
CN5902
DC DET
9
4
FAN
CN2012
CN5902
FAN
8
5
IC5900
C1BA00000497
30V
POWER AMPLIFIER
4
20
STABI
-30V
12
STABI
DRIVER
HIGH
SWITCH1
CONTROL
IN1+
INPUT
PWM
2
&
STAGE
MODULATOR
RELEASE1
HANDSHAKE
DRIVER
LOW
MUTE
ENABLE1
TEMP. SENSOR
OSC
1
OSCILLATOR
MANAGER
CURRENT PROTECTION
VOLT. PROTECTION
ENABLE2
MODE
23
MODE
TH5900
DRIVER
HIGH
SWITCH2
CONTROL
INPUT
PWM
IN2-
21
&
STAGE
MODULATOR
RELEASE2
HANDSHAKE
DRIVER
LOW
MUTE
6
18 17
-30V
-30V
76
30V
-30V
8
11
BOOT1
9
OUT1
JK5901
10
+
1
FRONT (RIGHT)
JK5901
-
2
PROT
7
-30V
BOOT2
15
JK5901
OUT2
14
+
3
FRONT (LEFT)
JK5901
-
4
13
16
30V
D5902
D5901
DC DETECT
Q5906,Q5907
SA-AKX30PH/PN POWER AMPLIFIER BLOCK DIAGRAM
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