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SLV-LX40/LX50/LX60S/LX70S
MA-405 (Y/C, AUDIO PROCESSOR) SCHEMATIC DIAGRAM
– Ref. No: MA-405 board; 1000 series –
• See page 4-5 for printed wiring board.
• See page 4-21 for waveforms.
Y/C, AUDIO PROCESS
MA-405(2/7)
4-9 4-10
A
123456789101112
13 14
B
C
D
E
F
G
H
I
J
MA-405 BOARD(2/7)
Y/C, AUDIO PROCESSOR (VA BLOCK)
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
3900
R381
1u
C353
XX
C384
0.1u
F
C230
1SS119-25TD
D352
2SB709A-QRS-TX
Q561
RD8.2ES-T1B
D561
xx
JS321
1u
C249
B
HM5
JL215
50V
1u
C350
0.1u
B
C227
0.01u
B
C202
2SD1620-TD
Q380
VS12
16V
47u
C383
C578
0.01u
B
JL322
R571
470
560p
C371
JL202
100uH
L202
IC201
LA71053M-MPB
123456789101112131415161718192021222324252627282930
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
46 47 48 49 50
515253545556575859606162636465666768697071727374757677787980
81828384858687888990919293949596979899100
8200
R357
XX
C219
LA7277M-TLM
IC570
1
C OUT
234
Y OUT
5
VCC
6
FIL ADJ
7
MONI 1
8
MONI 2
9
CLK
10
DATA
11
MAIN OFF
12
SUB
13
SUB
14
SUB
15
SUB
16
GND
17
REG
18
Y IN
1920
C IN
0.022u
B
C247
150
1/4W
R562
VS15
PET
0.047u
C380
2SC2712Y-TE85L
Q202
VS1
C571
1u
B
1u
C245
B
C577
0.01u
B
0.01u
C382
XX
D563
XX
C361
1u
C221
B
C352
0.1u
16V
47u
C228
1200
R362
50V
4.7u
C357
JL321
JL217
1500
R210
JL306
VS6
5600
R351
1800
R358
HT3
AN_GND
560
R212
0.01u
C381
JL320
VA7
0.1u
B
C206
0.01u
B
C236
SW_5V
C575
0.01u
B
BA7755AF-E2
IC350
1234
5678
0.001u
C359
HV6
180
1/4W
R563
0.047u
B
C201
VS3
4700
R211
JL308
25V
33u
C356
JL201
1u
C234
B
L203
10uH
JL305
HV5
1/4W
1k
R373
0.01u
C252
560
R372
0
JS325
JL206
X201
3.579545MHz
0.01u
B
C241
JL572
JL218
XX
C370
180
R383
4700
R359
HM4
AU_GND
100k
R576
47k
R224
680
R225
0.01u
B
C220
JL209
JL203
VS13
8200
R573
XX
C212
C573
0.33u
B
100uH
L561
0.01u
C246
CTL_Y
270
R364
JL210
VA3
0.1u
B
C210
HV2
CTL_X
JL570
50V
1u
C358
CNJ562
8200
R204
0.022u
B
C217
0.01u
B
C208
VA4
L205
100uH
12k
R370
T380
1
2
34
5
6
7
8
HT1
4.7u
C369
50V
1u
C225
L201
39uH
0.01u
B
C368
16V
47u
C362
1/4W
68k
R355
VS8
FSC_FOR_ADJ
L2_V
C574
16V
10u
JL220
0
R208
R570
10k
1k
R213
0.1u
B
C224
1800
R216
JL301
0.1u B
C235
8200
R366
0.047u
B
C248
5600
R209
5600
R356
220uH
L207
HM4
330
R203
C576
10V
100u
JL571
JL213
VS11
HT3
HV3
0.1u
B
C255
JL323
100uH
L380
2SC2712Y-TE85L
Q351
47k
R231
0.01u
C243
AU_GND
0.1u
B
C226
1500
R214
1u
B
C254
330
R201
JL303
1/4W
68k
R352
L570
100uH
50V
4.7u
C363
3P
CN351
1
2
3
0.01u
B
C561
JL205
L204
100uH
0.01u
B
C205
HM5
0
R221
HV1
47u
25V
C562
16V
22u
C223
}0.5%
100k
R205
330k
R365
JL208
XX
R206
1/10W
68k
R350
50V
1u
C216
0.1u
B
C251
2SA1162Y-TE85L
Q203
JL368
18k
R371
1
R382
VA1
VS15
JL204
0.60mm
JS323
XX
C564
R572
470
16V
47u
C231
xx
JS327
HV4
JL214
0.01u
B
C239
VS1
AN_GND
JL219
0
JS324
16V47u
C238
16V
47u
C209
0.1u
B
C229
C572
50V
4.7u
16V
10u
C233
1u
C355
0.60mm
JS301
50V
1u
C366
8200
R215
0.01u
B
C237
XX
D562
820
R369
1k
R574
2SC2712Y-TE85L
Q201
100k
R577
2SD601A-QRS-TX
Q204
1u
C244
B
VS2
16V
10u
C354
L206
100uH
25V
47u
C351
VA2
0.047u
B
C250
SW_12V
VA5
JL307
18k
R363
JL211
75
R565
4700
R575
JL560
0.01u
B
C365
JL304
68
R564
VT2
16V
47u
C240
HS3
XX
R222
0.01u B
C242
0
R220
1u
C204
B
1u
C232
B
330
R561
5600
R367
1SS119-25TD
D351
680
R223
16V
10u
C364
XX
R207
2SC1815GR-TPE2
Q350
2700p
C360
470u
10V
C563
820
R202
2.2M
R354
HS4
JL302
5600
R353
47
R380
JL207
C570
0.01u
B
L350
XX
100
R219
JL222
39p
C207
180p
C214
390p
C213
0.001u
CH
C203
39p
C253
10p
C215
33p
C211
16V10u
C222
0.60mm
JS303
7P
CN350
1
CTL (X)
2
CTL (Y)
3
GND (AU)
4
A HEAD PB
5
A HEAD REC
6
GND (AU)
7
AERASE HEAD
HF_GND
XX
C579
E3
C1
C3
C2
C6
C3
C4
C4
D2
D2
E5
C5
C1
E1
D7
D8
E7
E5
D4
D5
E7
C2
D4
D5
C6
E3
D7
D8
C5
E8
E8
E1
AN_GND
AN_GND
HF_GND
AU_GND
MA-405 (7/7)
(SEE PAGE 4-19)
MA-405 (5/7)
(SEE PAGE 4-15)
MA-405 (1/7)
(SEE PAGE 4-7)
RF VIDEO
TU AU MONO
L1_AUDIO_R
L1_AUDIO_L
AUDIO_R_OUT
AUDIO_L_OUT
A MUTE
GND (AU)
FE HEAD
MA-405(4/7)
(SEE PAGE 4-13)
TRICK-H
REC H
REC CURR ADJ
REC Y RF
REC C
PB RF
Q VD
I2C CLOCK(VIDEO)
I2C DATA(VIDEO)
RF SW P
C ROT
ACC
Chara
R
INS.
P
6dB
P
AMP
SYNC
SEP
VIDEO
AGC
CLAMP
CLAMP
FBC
CLAMP
CLAMP
TC2
AGC
SW-Vcc
REG
CLAMP
P
ACC
R
DET
YNR
FILT
R
REC-EP.LP
LPF
PB-EP
1/2
REC
FBC
PB-LP.SP
R
Y-Vcc
P
RF SWP
P
C.ROT
R
HASW
P
REC-H
R
TRICK-H
1
CCD VCC
23
1H
D.L
R
N.C
KIL
60/50
R
VCA
C-LPF
SW GND
P
A-Vcc
B.D.
ALC
KIL
DET
ENH
A-GND
DETAIL
C-GND
EMPH
N.C
N.L
N.C
AGC
N.C
EMPH
D.L
TC1
1H/2H
PB
4Fsc
Main
EQ
FM
CCD GND
EQ
NTSC:H
MOD
C-Vcc
BAL
CLK IN
FM
AFC
REC
FILT
EQ
N.C
SQPB
P
DOUBLE
P
LIM
P
DEMOD
R
LPF
P
SUB
S
N
P
R
SERIAL
DECODER
DET
SYNC
DET
FMAGC
CLAMP
VIDEO
FILT
M-Em
CTL
EQ
FIL
PEAKING
N.L
Y GND
R
BPF2
BGA
PB
PB
BGA-A
REC
BGA-B
BRA
R
AMP
A MUTE
ACC
P
APC
REC REC
AMP
REC
EQ
APC
AUTO
APC
BIAS
VXO1
P
KIL
R
DET
REC
AMP
AMP
VCO
MUTE
SLD
AMP
INV
LINE
EQ
Vref
D.L
ALC
BPF1
Vref
TH
REC
LPF
P
Sub
R
COVN
MIX
Sub
CONT
BPF
De-EM
Main
NC
CONV
DHP
B-UP
PIC
AMP
N.L
AMP
Y/C
VIDEO
IN
L
R
OUT
MA-405 (3/7)
(SEE PAGE 4-11)
ARC CLK
ARC DATA
VIDEO OUT
OSD V OUT
PB-H
VXO2
TU VIDEO IN
RF AUDIO
NORMAL_OUT
NORMAL_IN
L2_AUDIO_L
RF_AUDIO_OUT
L1
L2
TU
COMP SYNC
AN_GND
L2(L)
AU_GND
L2_AUDIO_R
L2(R)
L2_VIDEO
AUDIO_MUTE
FE HEAD
ACE HEAD
REC
PB
VIDEO SIGNAL
CHROMA Y Y/CHROMA
AUDIO
SIGNAL
SIGNAL PATH
B
+
+
B
+
B
+
B
B+
+B
B+
B
+
+
B
+
B
+
B
IC570
IC350
IC201
Y/C PROCESSOR
AUDIO PROCESSOR
HEAD SWITCH
ARC
+
B
2.6
2.8
1.8
4.1
1.9
1.8
2.6
2.4
2.1
2.9
2.3
1.8
4.9
1.1
5.0
5.0
0
2.3
2.4
2.4
R0.6/P0
R1.6/P5.0
R0.8/P0
2.4
2.4
2.3
R3.1/
P2.3
2.3
0
R4.1/P0
0.8
R3.3/
P0.2
0.8
4.2
R1.6/
P2.0
R0/
P2.5
R2.4/
P0.3
2.3
2.6
R1.6/P1.7
2.0
2.0
3.1
5.0
R2.4/P2.0
R0.8/P1.8
1.1
2.2
R2.4/P1.6
R2.4/
P1.6
R3.1/
P2.5
3.1
3.0-3.7
4.6
4.6
2.3
R0.1/P1.5
0
1.8
0.3
1.8
3.4
3.0
R2.2/P0.3
1.5
R1.7/
P0
2.0
R2.1/
P0
4.1
R3.2/
P1.3
5.0
3.0
3.1
1.9
4.9
2.2
1.4
9.0
2.0
0.8
1.8
2.5
2.5
4.9
4.9
4.9
3.4
3.3
3.3
3.3
3.4
2.1
3.8
2.5
1.9
2.3
5.0
2.3
2.2
1.6
2.3
5.0
MUTE
SWITCH
R4.7/P5.0
R1.7/P5.0
R1.8
/P5.0
R1.6/
P5.0
R0.8/
P0
2.0
1.3
3.7
R2.4/
P2.1
R1.8/
P1.4
5.0
1.4
2.1
11
10
9
8
7
15
12
14
13
5
6
1
9
8
16
AUDIO
BIAS OSC
BIAS SWITCH
BUFFER
BUFFER
BUFFER
BUFFER
2.6
3.2
BIAS OSCILLATOR
TRANSFORMER
0
R3.3/
P0.2
2.4
5.0
MA-405(6/7)
(SEE PAGE 4-17)
7
LX40/LX50
LX40/LX50
LX60S/LX70S
LX60S/LX70S
LX40/LX50
LX40/LX50
LX40/LX50
LX40/LX50
LX40/LX50