Audio - Panasonic SA-AKX74PH Service Manual

14.3. Audio

: CD AUDIO INPUT SIGNAL LINE : AUX/TUNER/MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE
JK2000
L AUX L
2
AUX IN
AUX R
R
3
1
IC52
C1AB00003566
AM/FM
JK51
RADIO RECEIVER
FM ANT
2 FMI LOUT 14
ROUT 13
9 RCLK
X51
SDIO 8
17 DCLK
L52
JK52
SCLK 7
2 3 4 4 AMI
RST 5
AM ANT
2
GCGPIO2 18
1 1 6
FROM/TO
SERVO & SYSTEM CONTROL
MUSIC PORT P.C.B.
JK6401
5
MPORT SW
4
R MPORT R
3
MUSIC PORT
L MPORT L
2
1
6
7
MIC P.C.B.
JK6500
5
4 IC6500
C1AB00003130
MIC AMPLIFIER
3
MIC
2
MIC
1
CIRCUIT
6
7
VR6500
MIC VOLUME
MIC SW
NOTE: " * " REF IS FOR INDICATION ONLY
: AUDIO OUTPUT SIGNAL LINE : AM SIGNAL LINE
MAIN P.C.B.
IC2000
C1AB00003256
ASP
38 IN3B
2 IN3A
37 IN2B
3 IN2A
OUTB 22
OUTA 17
TU INT
TU INT
TU RST
TU RST
TU SCLK
TU SCLK
TU SDA
TU SDA
ASP DATA
ASP DATA 19 SDA
ASP CLK
ASP CLK
20 SCL
CD L
CD L 44 IN6B
CD R
CD R 47 IN6A
MPORT SW
MPORT SW
EXTSENSE 24
BPF1 13
BPF2 14
BPF3 15
PANEL P.C.B.
VOLINA 7
ZJ6401* ZJ6002* CN6000 CN2003
MPORT SW
VOLINB 33
1 1 9 19
ZJ6401* ZJ6002* CN6000 CN2003 MPORT R
50 IN5A
4 4 6 22
ZJ6401* ZJ6002* CN6000 CN2003 MPORT L
42 IN5B
2 2 8 20 RECOUTA 6
RECOUTB 34
MONOUTA MONOUTB
5 35
MIC ZJ6500* ZJ6003* CN6000 CN2003 MIC MIC MIXING
AMP CIRCUIT
3 3 4 24
IC2002
C0ABBB000067
BUFFER AMP
TO
ZJ6500* ZJ6003*
MIC SW SERVO &
MIC SW
2 2
SYSTEM CONTROL
: FM SIGNAL LINE
Q2050
TO
CLIP SENSOR
CLIP SENSOR
CLIP SENSOR
SERVO & SYSTEM CONTROL CIRCUIT
IC2005
C0AABB000125
DUAL OP-AMP
PRE-AMP
&
SUPER WOOFER
SW LV1 CIRCUIT
SW LV1
FROM
SW LV2
SW LV2
SERVO & SYSTEM CONTROL
SW MUTE
SW MUTE
IC2004
C0ABBB000067
DUAL OP-AMP
Q2004,Q2005,Q2006
Q2008,Q2009,Q2010
CLIP ATTN
CLIP ATTN
Q2001
SWITCH
Q2037
SWITCH
Q2041
SWITCH
Q2040
SWITCH
Q2042 FROM/TO
SERVO & SYSTEM CONTROL
BASS SHIFT
SWITCH BASS SHIFT
LCH IN
LCH IN
RCH IN
RCH IN
Q2038,Q2039
AUTO BASS
AUTO BASS
AUTO BASS
CIRCUIT
LVL MTR
LVL MTR
LEVEL METER BASS CTR
BASS CTR
CIRCUIT
MUSIC CTR
MUSIC CTR
QR2001,Q2000,Q2007
Q2016,Q2017,Q2026
75
IC2001
C0ABBB000067
DUAL OP-AMP
Q2028,Q2029
Q2030,Q2032
FRONT
HIGH & LOW
DUAL AMPLIFIER
CIRCUIT
SA-AKX74PH/PN AUDIO (1/2) BLOCK DIAGRAM
FR R TWEETER
3
FR R WOOFER
4
FR L WOOFER
2
FR L TWEETER
1
SUBWOOFER
5
TO AUDIO
BLOCK (2/2)