Panasonic PT-43LCX64 Service Manual page 87

AUDIO SIGNAL PATH BLOCK DIAGRAM
DTV TUNER UNIT
SPLITTER
TUNER AUDIO(R)
TUNER AUDIO(L)
ANT-B MAIN
SW
TUNER
TRANSPORT
IF(DIGITAL) DECODER
ANT-A
AUDIO
RF-SW
MPEG2
D/A
(ANT-A(L)/ANT-B(H))
DECODER
CONVERTER
<FROM IC6003(42)> DIGITAL
DEMODULATOR AC3
DECODER
(DIGITAL(L)/ANALOG(H))
AUDIO A/D
FPGA
CONVERTER
SW
SW
POD INTERFACE
DIGITAL
AUDIO OUT
DCM
(DIGITAL CABLE MODULE)
JK3501
AUDIO IN1 (R)
AUDIO IN1 (L)
AUDIO IN2 (R)
AUDIO IN2 (L)
FRONT JACK C.B.A.
JK4801
AUDIO IN3 (R) P3902-11
AUDIO IN3 (L) P3902-9
MAIN C.B.A.
JK4802
R
RGB AUDIO IN2 P3901-13 P5501-13
L
P3901-11 P5501-11
JK4001
R
RGB AUDIO IN1
L
JK4003
HDMI AUDIO IN (R)
HDMI AUDIO IN (L)
FROM VIDEO II HDMI AUDIO(R) <FROM IC6003(62)> AUDIO SW CONTROL 2
SIGNAL PATH
<FROM IC6003(64)> AUDIO SW CONTROL 1
BLOCK DIAGRAM HDMI AUDIO(L)
JK3601
COMPONENT
AUDIO IN1 (R)
COMPONENT
AUDIO IN1 (L)
JK3602
COMPONENT
AUDIO IN2 (R)
COMPONENT
AUDIO IN2 (L)
JK3603
COMPONENT
AUDIO IN3 (R)
COMPONENT
AUDIO IN3 (L)
TUNER C.B.A. REAR JACK C.B.A.
TUNER AUDIO(R)
SW P7007-24 P7005-9 P3604-9
TUNER AUDIO(L)
SW P7007-26 P7005-7 P3604-7
IC3501 (AUDIO/VIDEO SW)
D/A-SW
LINE 1
<FROM IC6003(58)>
4
LINE 2
11
P7007-20 P7006-6 P3503-6
LINE 3
18
P7007-22 P7006-5 P3503-5 HDMI/RGB
61
LINE 1
2
LINE 2
9
LINE 3
16
HDMI/RGB
59
VCC
+9V
P3502-11
P3502-9
IC4002 (SW)
(R-CH)
RGB2
2
RGB1
5
HDMI(ANALOG) 3 P3404-17 P3602-17
4
HDMI(DIGITAL)
1
(L-CH)
RGB2
15
RGB1
14
HDMI(ANALOG) 13 P3404-18 P3602-18
11
HDMI(DIGITAL)
12
VCC 16 +5V
SWITCHING
CONTROL
VEE 7 -5V
9 10
Q4002 Q4001
IC3602 (AUDIO/VIDEO SW) IC3601 (SOUND PROCESSOR)
AUDIO
INPUT
40
71
SELECT
AUDIO
SOUND
21
(R-CH)
INPUT
PROCESS
12 23 5
SELECT
(R-CH)
64
(R-CH)
55
AUDIO
INPUT
38 70
SELECT
AUDIO
20 SOUND
(L-CH)
INPUT
PROCESS
11 24 28
SELECT
(L-CH)
63
(L-CH)
54
I2C CONTROL
VCC
I2C CONTROL I2C CONTROL
42 34 33
VCC VCC VCC
31 47 2 3 1 18 17
+9V +5V
AUDIO AMP C.B.A.
IC4503
+12V
+16V 1 3
REG.
IC4501
(AUDIO AMP) RL4501
32~33dB
P4503-1
AUDIO AMP
12 P3603-3 P4505-3 11 2 3 2 P4502-2
(R-CH)
P4502-3
P4502-4
6
1
AUDIO AMP
P3603-1 P4505-1
21 7 4 4 5
(L-CH)
VEE
1
-16V 6 VEE
+9V
15
Q4504
+16V 3 VCC
5
Q4501 Q4505
DRIVE
AMP MUTE(L) <FROM IC6003(13)>
I2C SERIAL CLOCK FROM SYSTEM
CONTROL
I2C SERIAL DATA
BLOCK DIAGRAM
IC3502 (OP AMP)
JK3502
5 7
3 1
Q3505 Q3506
-VEE 4 -5V
0dB
MUTE-ON MUTE-ON
VCC 8 +5V
DRIVE
Q3504
LINE OUT MUTE(H) <FROM IC6003(9)>
AUDIO SIGNAL
NETWORK C.B.A. (FOR R-CH)
SPEAKER
P4553-1 P4552-1
(R-CH)
P4553-2 P4552-2
WOOFER
P4551-1 SPEAKER
(R-CH)
P4551-2
TWEETER
NETWORK C.B.A. (FOR L-CH)
P4553-1 P4552-1 SPEAKER
P4553-2 P4552-2 (L-CH)
WOOFER
SPEAKER
P4551-1
(L-CH)
P4551-2
TWEETER
AUDIO OUT (R)
AUDIO OUT (L)
AUDIO SIGNAL PATH BLOCK DIAGRAM
PT-43LCX64/PT-50LCX64/PT-60LCX64