Digital Audio - Panasonic SA-PT480PH Service Manual

14.6. Digital Audio

: AUDIO OUTPUT SIGNAL LINE
IC5301
MAIN P.C.B. C1AB00002461
PWM PROCESSOR
CN2006 CN5402 DAP SDIN1 SDIN1
26
6 13
CN2006 CN5402 DAP SDIN2 SDIN2
25
7 12
CN2006 CN5402 DAP SDIN3
SDIN3
24
8 11
FROM
MAIN(AUDIO)
CN2006 CN5402
DAP MCLK MCLK
8
13 6
CN2006 CN5402 DAP LRCLK
LRCLK
19
11 8
CN2006 CN5402 DAP SCLK SCLK
20
10 9
CN2006 CN5402 DAP SDA 2 SDA
17
16 3
CN2006 CN5402
DAP SCL 2 SCL
18
15 4
FROM/TO
MAIN(SYSTEM CONTROL)
CN2006 CN5402 DAP REST
/RESET
9
18 1
CN2006 CN5402 DAP MUTE /MUTE
16
17 2
CN2006 CN5402
FROM
9 10
POWER SUPPLY
CN2006 CN5402 FAN SIGNAL
2 17
CN2006 CN5402
DCDET
4 15
FROM/TO
MAIN(SYSTEM CONTROL)
CN2006 CN5402 ECO
3 16
FROM
DCDET
POWER SUPPLY
D-AMP P.C.B.
SERIAL DATA
PWM 1
38
INTERFACE
PWM 2
37
PWM 3
36
PWM 4
MUX & VOL PWM 35
PWM 5
34
CLOCK RATE /
PWM 6
ERROR DETECTION
33
&
PLL
IC5405
C0JBAA000501
AND GATE
2
SERIAL CONTROL
VALID1
INTERFACE 31 1
IC5402
PWM
CONTROL C0JBAA000501
AND GATE
SYSTEM CONTROL
VALID2
32 1
2
IC5401
C0EBE0000456
RESET
OUT 1
IC5404
C0JBAB000837
INVERTER
PWM SW-
3 4
IC5100
C1AB00003260
PWM C-
1 6
DIGITAL AMPLIFIER
3 S/D
PWM SL
4 INPUT A
PWM SR
6 INPUT B
PWM FL+
14 INPUT C
PWM FR+
16 INPUT D
5 /RESET AB
PWM SL
VALID2
15 /RESET CD
PWM SR
PWM FL+
PWM FR+
PWM C+
PWM SW+
IC5200
C1AB00003260
DIGITAL AMPLIFIER
VALID1
4
3 /SD
PWM C+
4 INPUT A
PWM C-
6 INPUT B
VALID2
4 PWM SW+
14 INPUT C
PWM SW-
16 INPUT D
5 /RESET AB
VALID1
15 /RESET CD
QR5400
DC DETECT
106
BST A 35
JK5001
OUT A 33
11
JK5001
OUT B 30
12
BST B 28
BST C 27
JK5001
OUT C 25
9
JK5001
OUT D 22
10
BST D 20
JK5001
7
JK5001
8
JK5001
5
JK5001
6
BST A 35
JK5001
OUT A 33
3
JK5001
OUT B 30
4
BST B 28
BST C 27
JK5001
OUT C 25
1
JK5001
OUT D 22
2
BST D 20
Q5412,Q5413
DC DETECT DC DETECT
Q5408, Q5409, Q5414
Q5400,Q5401,Q5402,
Q5403,Q5404,Q5405
FAN DC OUT CN5401
FAN CONTROL
1
CIRCUIT CN5401
FAN LOCK
3
QR5401
DC DETECT
ECO CIRCUIT
SA-PT480PH DIGITAL AUDIO BLOCK DIAGRAM
+
SURROUND
-
(LEFT)
+ SURROUND
(RIGHT)
-
+ FRONT
(LEFT)
-
+ FRONT
(RIGHT)
-
+
CENTER
-
+
SUBWOOFER
-
FAN