D-Amp - Panasonic SA-VK480EE Service Manual

15.7. D-Amp

: AUDIO OUTPUT SIGNAL LINE
IC5000
C1BA00000492
AUDIO DIGITAL POWER AMP
IN1M
3
INPUT
STAGE
FRONT R IN1P
CN2808 CN5050
2
3 15
MUTE
5 SGND1
OSC
1
FROM AUDIO
TH5001
MODE
23 MODE
19
SGND2
MUTE
CN2808 CN5050 FRONT L IN2M
21
1 17
INPUT
STAGE
IN2P
22
Q5601,
Q5603,Q5604
MUTING
CN2808 CN5050 MUTE F SW
MODE 2
FROM CIRCUIT
13 5
CN2808 CN5050
SYSTEM CONTROL MOD DA
17 1
5V
<SW+5V>
CN2808 CN5050 FHOP
14 4
FROM/TO
SYSTEM CONTROL
CN2808 CN5050 DC DET
16 2
+ 30V SENSE
- 30V SENSE
12 7 16 8
RELEASE1
DRIVER
PWM
HIGH
MODULATOR SWITCH1
CONTROL
AND
ENABLE1
HANDSHAKE
DRIVER
LOW
STABI
TEMPERATURE SENSOR
OSCILLATOR MANAGER
CURRENT PROTECTION
VOLTAGE PROTECTION
ENABLE2
DRIVER
HIGH
CONTROL
SWITCH2
AND
HANDSHAKE
PWM
DRIVER
RELEASE2
MODULATOR
LOW
11 13
- 30V SENSE
IC5500
C0JBAB000902
HEX INVERTER
(CLOCK GENERATOR)
D5501
1 2 3 4 5 6 11 10 9 8
14
X5501 X5500
FAN DC
D5502
BOOT1
9
FR +
OUT1
10
BOOT2
15
FL +
OUT2
14
111
SPEAKERS
FRONT L
FL +
JK5001
+
6
JK5001
-
5
FRONT R
FR + JK5001
+
8
JK5001
-
7
Q5101,Q5102
DC DETECT
SA-VK480EE D-AMP BLOCK DIAGRAM