Sony LX50 - Manual (Page 39)

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
1 2 3 4 5 6 7 8 9 10 11 12 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 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
8200 R357
XX C219
LA7277M-TLM
IC570
1
C OUT
2 3 4
Y OUT
5
VCC
6
FIL ADJ
7
MONI 1
8
MONI 2
9
CLK
10
D ATA
11
MAIN OFF
12
SUB
13
SUB
14
SUB
15
SUB
16
GND
17
REG
18
Y IN
19 20
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
1 2 3 4
5 6 7 8
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 3
4 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
16V 47u 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
16V 10u 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
2 3
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
B RA
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