Kenwood KAC-929, Руководство по обслуживанию

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KAC-929
2
BLOCK DIAGRAM
ISOLATION
AMPLIFIER
L
ISOLATION
AMPLIFIER
R
B.BOOST EXPANDER INVERTER
SW3 SW4
SW1
(L)
INPUT SENS.
MIXER
LOW
PASS
SW2
IC1
IC2
IC3 IC3
IC4
BUFFER
IC3
MUTE
Q3
STAGE
DIFFERENTIAL
107,109,111
Q101,103,105,
B-CLASS
121,123,125,127
Q113,115,117,119,
STAGE
OFF/+6/+12
BASS BOOST
OPERATION
ST/MONO
LPF
ON/OFF
EXP.
ON/OFF
INPUT SENS.
(R)
B.BOOST
IC2
SW3 EXPANDER INVERTER SW4 BUFFER
IC3
MUTE
Q4
Q114,116,118,120,
STAGE
Q102,104,106,
108,110,112
DIFFERENTIAL
STAGE
122,124,126,128
B-CLASS
OUTPUT
SPK.
SPK.
OUTPUT
V
SPK
L
SPK
R
DC DETECTOR
OVER LOAD DETECTOR
DC/DC
CONVERTER
CIRCUIT
OVER VOLTAGE
PROTECTION
THERMAL
AVR
Q1,2 Q11-22
IC5
Q5-8,29-33
Q24
P.CON
CIRCUIT
Q23,25-28
P.C.
BATTERY
V
IC1