18.7. Digital Audio Amp
: MAIN SIGNAL LINE
IN1M
IN2M
IN1P
IN2P
SGND1
SGND2
OSC
MODE
INPUT
STAGE
INPUT
STAGE
PWM
MODULATOR
CONTROL
AND
HANDSHAKE
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
PWM
MODULATOR
OSCILLATOR
MANAGER
STABI
RELEASE1
RELEASE2
SWITCH1
SWITCH2
ENABLE1
ENABLE2
MUTE
MUTE
MODE
2
3
STABI
PROT
VDDP2
VSSP2
VDDP1
VSSP1
BOOT1
BOOT2
OUT1
FL+
FR +
OUT2
IC5000
C1BA00000487
AUDIO DIGITAL POWER AMP
5
19
23
1
21
22
9
10
15
14
13
11
8
16
12
7
FRONT R
FRONT L
MUTE F
MOD DA
+
-
+
-
IC5500
INVERTER GATE
(CLOCK GENERATOR)
C0JBAB000902
X5500
X5501
D5501
D-TYPE FLIP-FLOP
C0JBAF000716
CP1
O1
IC5501
6
8
10
9
14
14
11
3
D1
5
4
6
O1
2
1
5
4
3
2
1
CD1
SD1
MUTING
CIRCUIT
Q5601
Q5603,Q5604
MODE
FRONT R
SPEAKER
FRONT L
SPEAKER
SA-VK470EE DIGITAL AUDIO AMP BLOCK DIAGRAM
DC DET
DC DETECT
Q5101,Q5102
FROM AUDIO
FROM AUDIO
FROM
SYSTEM CONTROL
FROM/TO
SYSTEM CONTROL
- 30V SENSE
+ 30V SENSE
- 30V SENSE
3
15
FHOP
14
4
CN5050
CN2808
1
17
CN5050
CN2808
CN5050
CN2808
16
2
CN5050
CN2808
3
JK5001
4
JK5001
1
JK5001
2
JK5001
13
5
CN5050
CN2808
CN5050
CN2808
17
1
D5502
SW+5V
SW+5V
SA-VK470EE
95
Summary of Contents for SA-VK470EE
Page 3: ...3 SA VK470EE ...
Page 12: ...12 SA VK470EE ...
Page 40: ...40 SA VK470EE ...
Page 42: ...9 3 Main Components and P C B Location 42 SA VK470EE ...
Page 54: ...9 15 2 Replacement of Motor Capstan Belt A Capstan Belt B and Winding Belt 54 SA VK470EE ...
Page 88: ...SA VK470EE 88 ...
Page 98: ...98 SA VK470EE ...
Page 116: ...SA VK470EE 116 ...
Page 124: ...SA VK470EE 124 ...
Page 136: ...136 SA VK470EE ...
Page 137: ...24 Exploded Views 24 1 Cabinet Parts Location SA VK470EE 137 ...
Page 138: ...SA VK470EE 138 ...
Page 139: ...24 2 Deck Mechanism Parts Location RAA4111 S SA VK470EE 139 ...
Page 140: ...24 3 Packaging SA VK470EE 140 ...