Panasonic SA-MAX370GS / SA-MAX770GS Simplified Service Manual ▷ View online
21
6 Schematic Diagram
6.1.
Schematic Diagram Notes
• This schematic diagram may be modified at any time
with the development of new technology.
Notes:
• Important safety notice:
Components identified by
mark have special characteris-
tics important for safety.
Furthermore, special parts which have purposes of fire-retar-
dant (resistors), high quality sound (capacitors), low-noise
(resistors), etc are used.
When replacing any of components, be sure to use only
manufacturer’s specified parts shown in the parts list.
Furthermore, special parts which have purposes of fire-retar-
dant (resistors), high quality sound (capacitors), low-noise
(resistors), etc are used.
When replacing any of components, be sure to use only
manufacturer’s specified parts shown in the parts list.
• In case of AC rated voltage Capacitors, the part no. and val-
ues will be indicated in the Schematic Diagram.
AC rated voltage capacitors:
C1001, C1002, C1003, C1004, C1006, C1518
AC rated voltage capacitors:
C1001, C1002, C1003, C1004, C1006, C1518
• Resistor
Unit of resistance is OHM [
Ω
] (K=1,000, M=1,000,000).
• Capacitor
Unit of capacitance is
μ
F, unless otherwise noted. F=Farads,
pF=pico-Farad.
• Coil
Unit of inductance is H, unless otherwise noted.
•
*
REF IS FOR INDICATION ONLY.
• Voltage and signal line
S1500:
Power (
) switch.
S1501:
Manual EQ switch.
S1502:
Latin Preset EQ switch.
S1503:
D.BASS-Superwoofer switch.
S1504:
Memory 3 switch.
S1505:
Memory 2 switch.
S1506:
Memory 1 switch.
S1507:
Memory 5 switch.
S1508:
Memory 4 switch.
S1509:
Memory 6 switch.
S1510:
DJ-Effect switch.
S1511:
DJ-Sampler switch.
S1512:
DJ-Jukebox switch.
S1650:
Open/Close switch.
S1651:
USB Rec/Pause switch.
S1652:
Memory Rec/Pause switch.
S1653:
REW/Skip (
/
) switch.
S1654:
Forward/Skip (
/
) switch.
S1655:
Album/Track switch.
S1656:
Stop (
) /Tune switch.
S1657:
Bluetooth/Memory switch.
S1658:
Playback switch.
S1659:
USB/CD switch.
S1660:
Radio/EXT-IN switch.
S7201:
Reset switch.
VR1400:
Mic Jog.
VR1401:
Mic VR Jog.
VR1600:
Volume Jog.
VR1930:
Illumination Jog.
VR1960:
Volume Jog.
: +B signal line
: -B signal line
: CD Audio input signal line
: Tuner/Music Port/AUX/Mic/Bluetooth Audio input
signal line
: Audio output signal line
: USB signal line
: AM signal line
: FM signal line
: -B signal line
: CD Audio input signal line
: Tuner/Music Port/AUX/Mic/Bluetooth Audio input
signal line
: Audio output signal line
: USB signal line
: AM signal line
: FM signal line
22
23
6.2.
Main (I/O Expansion) Circuit
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C
D
B
E
G
H
F
A
C
D
B
E
G
H
F
A
MAIN (I/O EXPANSION) CIRCUIT
SCHEMATIC DIAGRAM - 1
SA-MAX370GS,SA-MAX770GS MAIN (I/O EXPANSION)
CIRCUIT
E
TO
BUTTON LEFT
CIRCUIT (
BUTTON LEFT
CIRCUIT (
P1500
)
IN SCHEMATIC
DIAGRAM - 19
DIAGRAM - 19
E
TO
BUTTON LEFT
CIRCUIT (
BUTTON LEFT
CIRCUIT (
P1501
)
IN SCHEMATIC
DIAGRAM - 19
DIAGRAM - 19
G
TO
MIC CIRCUIT
(
MIC CIRCUIT
(
CN1401
)
IN SCHEMATIC
DIAGRAM - 20
DIAGRAM - 20
: +B SIGNAL LINE
FA: MAIN (FAN LED): SCHEMATIC DIAGRAM - 2
DS: MAIN (DSP): SCHEMATIC DIAGRAM - 3
AB: MAIN (AMP BTL): SCHEMATIC DIAGRAM - 4 ~ 5
MI: MAIN (MICON): SCHEMATIC DIAGRAM - 6 ~ 7
AS: MAIN (AMP SINGLE): SCHEMATIC DIAGRAM - 8 ~ 9
FE: MAIN (FE): SCHEMATIC DIAGRAM - 10
KA: MAIN (KARAOKE): SCHEMATIC DIAGRAM - 11
DI: MAIN (DIGITAL-POWER): SCHEMATIC DIAGRAM - 12 ~ 13
US: MAIN (USB): SCHEMATIC DIAGRAM - 14
AU: MAIN (AUX TUNER): SCHEMATIC DIAGRAM - 15
DS: MAIN (DSP): SCHEMATIC DIAGRAM - 3
AB: MAIN (AMP BTL): SCHEMATIC DIAGRAM - 4 ~ 5
MI: MAIN (MICON): SCHEMATIC DIAGRAM - 6 ~ 7
AS: MAIN (AMP SINGLE): SCHEMATIC DIAGRAM - 8 ~ 9
FE: MAIN (FE): SCHEMATIC DIAGRAM - 10
KA: MAIN (KARAOKE): SCHEMATIC DIAGRAM - 11
DI: MAIN (DIGITAL-POWER): SCHEMATIC DIAGRAM - 12 ~ 13
US: MAIN (USB): SCHEMATIC DIAGRAM - 14
AU: MAIN (AUX TUNER): SCHEMATIC DIAGRAM - 15
: AUX/MIC AUDIO INPUT SIGNAL LINE
1
30
1
16
0.1
C1205
FL_SDI
FL_SDO
FL1_CS
FL_SCLK
R1804
J0JBC0000010
PW_XSW3R3V
PW_FL_SW9V
PW_FL_SW12V
FL2_CS
PW_SW3R3V
C1805
1
C1803
1000P
C1804
0.1
PW_SW5R4V
R1803
J0JBC0000010
10K
R1236
BT_UART_RX
SP_SCL
DJ_JOG_A
SP_SDA
DJ_JOG_B
R1815
4.7K
R1801
J0JBC0000010
BT_UART_TX
B1ADCE000012
LED DRIVE
Q1802
0.1
C1204
C1203
0.1
0.1
C1201
C1202
0.1
R1820
J0JBC0000010
R1821
J0JBC0000010
BT_UART_RTS
NFC_IRQ
R1827
4.7K...SA-MAX370GS
100K...SA-MAX770GS
R1816
J0JBC0000010
R1826
0...SA-MAX370GS
330...SA-MAX770GS
BT_HOST_WAKE
B1GBCFGN0016
SWITCH
QR1802
R1818
J0JBC0000010
R1819
J0JBC0000010
R1817
J0JBC0000010
PW_BT_SW5R4V
VOL_JOG_A
ROT_JOG_A
Z8
Z10
Z7
Z4
Z9
AGND
MPORT_IN_R
MPORT_IN_L
KEY1
MIC_IN
Z2
ROT_JOG_B
Z1
Z6
Z3
Z5
VOL_JOG_B
R1807
J0JBC0000010
R1809
1K
LB1801
J0JBC0000010
LB1803
J0JBC0000010
LB1805
J0JBC0000010
LB1807
J0JBC0000010
LB1809
J0JBC0000010
LB1811
J0JBC0000010
LB1813
J0JBC0000010
LB1815
J0JBC0000010
LB1814
J0JBC0000010
LB1812
J0JBC0000010
LB1810
J0JBC0000010
LB1808
J0JBC0000010
LB1806
J0JBC0000010
LB1804
J0JBC0000010
LB1802
J0JBC0000010
R1806
J0JBC0000010
3
2
6
7
4
5
1
9
8
P1803
6
5
8
9
10
12
11
7
2
1
4
3
14
13
16
15
P1801
C1810
470P
C1811
470P
C1812
470P
C1813
470P
C1814
470P
C1815
470P
C1816
470P
C1817
470P
C1818
470P
C1819
470P
C1820
470P
C1821
1000P
C1822
1000P
C1823
1000P
C1824
1000P
21
5
6
3
1
2
4
19
9
7
8
16 17
11
10
12
15
14
13
18
20
35
37
42
44 43
39 38
41 40
36
33
22
31
29
27
24
23
26
25
28
30
32
34
C0ZBZ0002175
I/O EXPANDER
IC1202
6
7
5
9
25
24
26
21
20
22
17
18
13
10
12
11
16
14
15
19
23
28
27
8
1
3
4
2
29
30
P1802
68K
R1228
USBLED_PLAY1
USBLED_REC
SP_INT
MI
US
US
FA
DI
AU
AU
DS
DS
DS
AS
DI
DI
DS
MI
MI
KA
AU
AU
FA
FA
US
AS
AB
FE
US
FA DS
AS
MI
MI
MI
KA
DI
US
DI
US
FE AS
KA
DI
DI
DI
AU
FA
DS
MI
MI
MI
MI
MI
MI
MI
MI
MI
MI
MI
MI
MI
KA DI
AU
AU
FA
AU
KA
FA
FA
FA
FA
FA
FA
FA
FA
FA
FA
MI
MI
MI
DI
MI
MI
AS
FAN_OUT
0.1
C1206
R1226
3.3K
3.3K
R1229
QR1201
B1GBCFJJ0040
SWITCH
ANALOG_SEL2
DRV_AMP_MUTE
DSP_MUTE
ANALOG_SEL
AMP_FHOP
DAMP_MOD_DA
TUN_RST
NRST
USB_A_PCONT
DGND
ILUMI_NRST
USB_OE
DSP_RESET
SMPS_BP
R1212
0
VOL_JOGB
VOL_JOGA
Z1
Z3
Z6
Z4
Z8
Z9
Z10
KEY1
Z7
Z5
Z2
CTL_JOGB
MIC_GND
MIC_IN
MPORT_GND
MPORT_IN_L
MPORT_DET
MIC_DET_2
PW_SW12R0V
MIC_DET_1
MPORT_IN_R
CTL_JOGA
FL_DATA
FL1_CS
VP_GND
DGND
DGND
REM_IN
VP_GND
FL2_CE
FL_CLK
DGND
DGND
DGND
DGND
DGND
FL_DOUT
PW_9V
PW_9V
PW_5V
DJ_JOG_B
PW_FL12V
PW_STBY3R3V
PW_SW3R3V
TX
IRQ3V
CD_ON_R
BT_UART_RTS
RX
DJ_JOG_A
HOST WAKE
BLUETOOTH5V
DJ_JOG_LED_CTL
VDD
KPX6
NC
VSS
VDD
VSS
KPX0
VSS
VDD
KPX7
KPY8
KPX3
PWM0
IRQN
[33] SDA
VDD
KPX2
[23] PX4
KPY1
VSS
KPY0
KPY3
KPY2
PWM2
VDD
KPY9
KPY10
KPY11
[11] KPX1
PWM1
VDD
[1] VSS
EXITIO0
KPX5
KPY4
KPX6
KPY7
RESETN
VSS
DIR25
SCL
VSS
DIR24
KPY5
1000P
C1808
C1809
1000P
1000P
C1825
1000P
C1826
R1812
J0JBC0000010
R1828
J0JBC0000010
R1213
0
R1214
0
KA
KA
DSP_ERR
DSP_RESET2
R1225
0
24
6.3.
Main (Fan LED) Circuit
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C
D
B
E
G
H
F
A
C
D
B
E
G
H
F
A
MAIN (FAN LED) CIRCUIT
SCHEMATIC DIAGRAM - 2
SA-MAX370GS,SA-MAX770GS MAIN (FAN LED)
CIRCUIT
: +B SIGNAL LINE
IO: MAIN (I/O EXPANSION): SCHEMATIC DIAGRAM - 1
DS: MAIN (DSP): SCHEMATIC DIAGRAM - 3
AB: MAIN (AMP BTL): SCHEMATIC DIAGRAM - 4 ~ 5
MI: MAIN (MICON): SCHEMATIC DIAGRAM - 6 ~ 7
AS: MAIN (AMP SINGLE): SCHEMATIC DIAGRAM - 8 ~ 9
KA: MAIN (KARAOKE): SCHEMATIC DIAGRAM - 11
DI: MAIN (DIGITAL-POWER): SCHEMATIC DIAGRAM - 12 ~ 13
AU: MAIN (AUX TUNER): SCHEMATIC DIAGRAM - 15
DS: MAIN (DSP): SCHEMATIC DIAGRAM - 3
AB: MAIN (AMP BTL): SCHEMATIC DIAGRAM - 4 ~ 5
MI: MAIN (MICON): SCHEMATIC DIAGRAM - 6 ~ 7
AS: MAIN (AMP SINGLE): SCHEMATIC DIAGRAM - 8 ~ 9
KA: MAIN (KARAOKE): SCHEMATIC DIAGRAM - 11
DI: MAIN (DIGITAL-POWER): SCHEMATIC DIAGRAM - 12 ~ 13
AU: MAIN (AUX TUNER): SCHEMATIC DIAGRAM - 15
TO FAN
(REAR MIDDLE)
(REAR MIDDLE)
TO FAN
(FRONT RIGHT)
(FRONT RIGHT)
NOTE: “ * ” REF IS FOR INDICATION ONLY
Z4
I2C_SCL
Z1
Z3
Z2
2
1
4
3
P1501
PW_SW3R3V
IO
IO
IO
IO
DA
AB
AS
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
DI
DI
DS
AS
DI
IO
DI
AB
AU
AU
Z8
PW_SW5R4V
Z1
PW_SW15R0V
FAN_OUT
AGND
680
R8503
0
R8504
C8502
10
MGND
680
R8507
0
R8508
10
C8503
C8501
0.1
6
7
5
2
4
3
8
1
C0ABBB000342
FAN CONTROL
IC8501
DGND
Z5
Z7
Z6
J0JYC0000070
LB1506
J0JYC0000070
LB1507
J0JYC0000070
LB1505
GND_PW
470P
C1523
C1524
470P
470P
C1522
Z6
Z9
SMPS_FAN_N
MI
DC_DET_AMP
1
2
P8503
1
2
P8502
Z10
SMPS_FAN_P
Z7
Z8
Z3
Z4
Z1
2
1
4
3
P1504
Z2
Z5
0
R1506
Z5
Z4
J0JYC0000070
LB1504
Z7
Z6
C8508
1
220
R8518
82K
R8519
6.8K
R8522
270K
R8523
R8531
100
R8520
100K
R8521
Q8508
B1ABCF000231
D8502
DA2J10100L
C8509
1
12K
R8506
47K
R8505
C8516
10V100
D8501
DA2J10100L
100
R8514
R8513
100K
10V100
C8513
12K
R8502
R8501
47K
B1AAJC000019
Q8504
270K
R8509
82K
R8510
Q8501
B1ABCF000231
FAN LOCK
1
C8505
6.8K
R8511
220
R8512
B1BACG000023
FAN DRIVE
FAN DRIVE
FAN DRIVE
FAN DRIVE
Q8505
C8504
1
0
R8533
10V220
C8515
R8524
470K
C8507
0.01
Q8507
B1ABCF000231
FAN LOCK
R8517
27
R8516
27
B1ABCF000231
DC DETECT
FAN LOCK
DC DETECT
Q8506
Z2
Z4
Z6
Z8
Z10
Z9
Z7
Z5
Z3
Z1
470K
R8515
10V220
C8514
B1ABCF000231
DC DETECT
Q8503
C8506
0.01
B1ABCF000231
SWITCH
Q8502
2
1
4
3
P1502
J0JYC0000070
LB1502
J0JYC0000070
LB1501
0.1
C1502
Z3
Z2
J0JYC0000070
LB1503
C1509
470P
C1521
470P
C1520
470P
C1508
470P
KIRARI_IN
ILUMI_NRST
27K
R1501
R1504
33
0.1
C1525
2
1
4
3
P1503
I2C_SDA
R1503
39K
Z10
Z9
C1504
0.1
J0JBC0000010
LB1508
C1505
47P
C1506
47P
C1501
0.1
C1503
0.01
LB1509
J0JBC0000010
R1502
0
C1507
25V1000
2
1
23
6
7
18
20
19
21
4
5
13
12
10
8
9
17
15
16
11
14
3
22
24
IC1501
TO SB-MAY370 (LEFT)/
SB-MAX770 (LEFT)
SB-MAX770 (LEFT)
TO SB-MAW370 (LEFT)
TO SB-MAW370 (RIGHT)/
SB-MAX770 (RIGHT)
SB-MAX770 (RIGHT)
TO SB-MAY370 (RIGHT)
AN32183A-VF
LED DRIVER
OUT
IN-
VCC
OUT2
VEE
IN+
+IN2
-IN2
SCL
Z10
SDA
VDD
Z8
Z6
Z5
Z7
Z9
PGND2
VCC2
Z2
Z1
Z3
VCC1
CLKIO
PGND1
IREF
NC
AGND
NRST
Z4
LDO
SLAVSEL
Z4
Z4
Z5
Z4
Z7
POSITIVE
POSITIVE
C8511
1
220
R8526
82K
270K
R8527
100
R8528
100K
R8529
Q8511
B1ABCF000231
D8503
DA2J10100L
C8512
1
C8518
10V100
0
R8534
10V220
C8517
R8532
470K
C8510
0.01
Q8510
B1ABCF000231
R8525
27
B1ABCF000231
Q8509
NEGATIVE
NEGATIVE
Z6
Z5
Z7
Z6
Z4
Z2
Z1
Z3
Z2
Z3
Z1
6.8K
R8530
ZC8003*
WIRE CLAMPER
FOR SA-MAX370GS
FOR SA-MAX370GS
R1507
0
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