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SLV-LX40/LX50/LX60S/LX70S
4-13 4-14
MA-405 (AUDIO PROCESS) SCHEMATIC DIAGRAM
– Ref. No: MA-405 board; 1000 series –
• See page 4-5 for printed wiring board.
A
123456789101112
13 14
B
C
D
E
F
G
H
I
J
MA-405 BOARD(4/7)
AUDIO PROCESS (AU BLOCK)
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
AUDIO PROCESS
MA-405(4/7)
16V
10u
C328
1SS119-25TD
D302
16V
10u
C341
HS3
50V
4.7u
C323
47k
R318
XX
R317
JL319
JL312
JL328
AU3
50V
4.7u
C320
JL326
JL325
25V
47u
C304
16V
10u
C342
50V
10u
C312
220
R306
47k
R319
AU2
HM5
HV3
50V
10u
C310
0.1u
C339
IC301
AN3668FBPEBV
12345678910111213141516
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33343536373839404142434445464748
49505152535455565758596061626364
XX
L301
0.22u
C334
50V
2.2u
C311
XX
R307
Q301
2SA1162Y-TE85L
HS2
JS311
16V
10u
C322
JL311
2SC2712Y-TE85L
Q303
0.1u
C333
}5%
33k
R316
0.1u
C319
JL310
JL331
25V
47u
C305
R303
1k
0.22u
C343
0.01u
C302
JL330
HV1
50V
10u
C313
1/4W
47k
R313
100uH
L303
R323
0
XX
B
C335
JL313
50V
10u
C314
FSC_FOR_ADJ
0.015u
C330
JL314
16V
10u
C329
R308
56k
HF_GND
50V
1u
C327
0.1u
B
C321
XX
L302
HT3
AU1
JL317
16V
10u
C324
16V
47u
C332
25V
33u
C326
AU_PB_RF
0.1u
C303
0
R310
50V
4.7u
C325
2SC2712Y-TE85L
Q302
0.015u
C340
0.1u
C301
0.01u
C338
0.1u
C309
HS4
1/10W
47k
R314*
SW_5V
1SS119-25TD
D301
SIF
25V
33u
C331
JL318
HV2
JS312
HM4
XX
R315
XX
JS313
XX
R312
HS5
1u
C308
JS304
SW_12V
HV5
HS7
JL327
1k
R301
HS1
0
R311
XX
R334
HV6
JL329
50V
3.3u
C316*
XX
R322
JL315
0.1u
C336
AN_GND
0.01u
C337
JL316
0.1u
C317
HV4
R302
1k
0.022u
C306
50V
10u
C315
0.01u
C345
XX
R320
JL324
50V
3.3u
C318
R321
3300
220
R305
VS1
50V
2.2u
C307
AN_GND
JS302
HF_GND
AN_GND
HF_GND
HF_GND
MA-405 (6/7)
(SEE PAGE 4-17)
MA-405 (7/7)
(SEE PAGE 4-19)
MA-405 (2/7)
(SEE PAGE 4-9)
MA-405 (3/7)
(SEE PAGE 4-11)
MA-405 (1/7)
(SEE PAGE 4-7)
VCC5V
OUT R
L+R
REF
GND
MPX
MODE
OUT L
VCC12V
RFC OUT
RFC AGC
NA OUT
NA IN
SIF
FSC
SDA
SCL
VCC5V
N.C.
GND R
REC ADJ
RPVCC5V
PB IN1
R/P GND
PB IN2
REC OUT
VREF
INREF R
L1 R
L2 R
GND L
INREF L
L1 L
L2 L
+
{
DEM/FILTER
SAP DEMOD
(L-R)/SAP
Switch
OUT
SEL
dbx
NR. IN SEL
PNR Lch
VCO R
VCO L
BPF
PNR Rch
FM
LIMITER
DET
NOISE
ENV
DETHL
OFF
ON
EE
moniter
INSW
MUTE
MUTE
INSW
SWP
OFF
ON
ON
OFF
}10%
}10%
AUDIO_R_OUT
AUDIO_L_OUT
RF_AUDIO_OUT
NORMAL_OUT
NORMAL_IN
L1_AUDIO_R
L1-AUDIO_L
L2_AUDIO_R
L2_AUDIO_L
I2C_DATA
I2C_CLOCK
AF_REC
AF_ENV
AF_SWP
AUDIO_CH1
AUDIO_REC
AUDIO_CH2
MPX_MODE
AUDIO MUTE
B+
B+
B+
IC301
AFM
AUDIO PROCESS
1.5
0.66
1.5
0.66
0.66
5
6
2.2
6
12
6
2.6
2.5
2.5
0.3
15
9
4
12
REC
PB
AUDIO
SIGNAL
SIGNAL PATH
ONLY LX60S/LX70S
2.2
0
2.2
0-5
0-5
5.0
1.7
2.5
0.4-0.7
2.5
2.5
0
1.8
5.0
0-5
2.1
5.0
R2.1/P0.7
R2.1/P0.7
2.5
2.5
R2.1/P0
R2.1/P0
0.4-0.7
2.5
0
0
2.2
0
0
2.2
2.5
14
MUTE
MUTE
POWER MUTE
LX60S/LX70S