SA-BT230GN, SA-BT735EB, SA-BT735EE, SA-BT735EG, SA-BT735EP, SC-BT735EE - Panasonic Audio Service Manual Supplement (repair manual). Page 3

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3
2 Block Diagram (Updates)
2.1.
Digital Audio (For SA-BT230GN-K)
With reference to original service manual (section 14.3) on page 100.
SA-BT230GN DIGITAL AUDIO BLOCK DIAGRAM
: AUDIO OUTPUT SIGNAL LINE
FROM/TO
MAIN(SYSTEM CONTROL)
FROM/TO
MAIN(SYSTEM CONTROL)
FROM
MAIN(AUDIO)
FROM
POWER SUPPLY
(MAIN SECTION)
FROM
POWER SUPPLY
(MAIN SECTION)
MAIN P.C.B.
D-AMP P.C.B.
+
-
+
-
+
-
+
-
FAN
+
-
+
-
MUX & VOL
PWM
PWM
CONTROL
SERIAL DATA
INTERFACE
SERIAL CONTROL
INTERFACE
SYSTEM CONTROL
PWM FL+
PWM FR+
PWM C+
PWM SW+
PWM SW-
PWM SW+
PWM C-
PWM C+
PWM 3
36
PWM 4
35
PWM 5
34
PWM 6
33
VALID1
VALID1
VALID2
FAN DC OUT
FAN LOCK
31
VALID2
32
OUT 1
3 /SD
4 INPUT A
6 INPUT B
14 INPUT C
16 INPUT D
5 /RESET AB
15 /RESET CD
DIGITAL AMPLIFIER
SPEAKERS
CENTER
SUBWOOFER
C1AB00003260
IC5200
PWM FR+
PWM FL+
3 S/D
14 INPUT C
16 INPUT D
5 /RESET AB
15 /RESET CD
OUT D 22
BST D 20
OUT C 25
BST C 27
OUT A 33
BST A 35
OUT B 30
BST B 28
OUT D 22
BST D 20
OUT C 25
BST C 27
DIGITAL AMPLIFIER
SPEAKERS
C1AB00003260
IC5100
PWM PROCESSOR
C1AB00002461
IC5301
VALID2
VALID1
DAP SDIN1
SDIN1
26
DAP SDIN2
SDIN2
25
DAP SDIN3
SDIN3
24
3
JK5001
4
JK5001
1
JK5001
1
CN5401
3
CN5401
2
JK5001
FRONT
(LEFT)
7
JK5001
8
JK5001
FRONT
(RIGHT)
5
JK5001
6
JK5001
Q5408, Q5409, Q5414
Q5412,Q5413
Q5400,Q5401
Q5402,Q5403
Q5404,Q5405
DC DETECT
DC DETECT
QR5401
DC DETECT
ECO CIRCUIT
QR5400
DC DETECT
FAN CONTROL
CIRCUIT
13
6
CN5402
CN2006
12
7
CN5402
CN2006
11
8
CN5402
CN2006
CLOCK RATE / 
ERROR DETECTION
&
PLL
DAP MCLK
MCLK
8
DAP LRCLK
LRCLK
19
DAP SCLK
SCLK
20
8
11
CN5402
CN2006
9
10
CN5402
CN2006
6
13
CN5402
CN2006
DAP SDA 2
SDA
17
3
16
CN5402
CN2006
DAP SCL 2
SCL
18
4
15
CN5402
CN2006
DAP REST
/RESET
9
1
18
CN5402
CN2006
DAP MUTE
/MUTE
16
2
17
CN5402
CN2006
DCDET
15
4
CN5402
CN2006
4
AND GATE
C0JBAA000501
IC5405
RESET
C0EBE0000456
IC5401
2
1
4
AND GATE
C0JBAA000501
IC5402
1
2
DCDET
ECO
16
3
CN5402
CN2006
FAN SIGNAL
17
2
CN5402
CN2006
10
9
CN5402
CN2006
PWM SW-
PWM C-
3
4
1
6
INVERTER
C0JBAB000837
IC5404
PWM SL
PWM SR
PWM 1
38
PWM 2
37
4 INPUT A
6 INPUT B
PWM SR
PWM SL
SURROUND
(LEFT)
SURROUND
(RIGHT)
OUT A
BST A
OUT B
BST B
11
JK5001
12
JK5001
9
JK5001
10
JK5001
33
35
30
28
D5408
(D5408)
ADD
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