Sony SLV-LF1 / SLV-LF1AS / SLV-LF1MI Service Manual ▷ View online
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
B
C
D
E
F
G
H
I
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SLV - LF1
4-9
4-10
MA-402 (VIDEO, AUDIO) SCHEMATIC DIAGRAM
– Ref. No: MA-402 Board; 1000 series –
• See page 4-5 for printed wiring board.
– Ref. No: MA-402 Board; 1000 series –
• See page 4-5 for printed wiring board.
MA-402 BOARD(1/8)
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
P :PB MODE
VIDEO, AUDIO
MA-402 (1/8)
CL297
1k
R289
*
JL234
50V
4.7u
C223
CL298
18k
R355
XX
JS360
10
R383
*
UN2213-TX
Q203
10uH
L207
0.1u
F
C235
100
R294
*
47k
R370
LA7277M-TLM
IC291
*
1
C OUT
2
YOUT
3
Y SYNC
4
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
19
MCOR 3
20
C IN
2SC4040-TL2-Q
Q381
*
SW12V
16V
10u
C238
CL293
LINE1
27k
R204
0.01u
B
C295
*
0.22u
B
C247
AMUTE
4700p
C205
*
50V
3.3u
C209
1500p
C376
B
NA11
10uH
L205
L2_VIDEO
JL304
CL290
47p CH
C262
*
16V
XX
C353
50V
4.7u
C290
*
NAPB
1u B
C258
470
R366
0.022u
B
C221
B
C289
0.1u
*
2.2u
C225
F
16V
47u
C234
22k
R382
*
CL296
JL215
50V
2.2u
C218
CL292
1k
R227
1500p
B
C384
*
1k
R201
XX
JS291
*
2200
R387
0.01u
Y
C377
0.1u
C351
F
JL216
0
R357
HA22
0.1u
F
C242
VCLK
8200
R296
*
10k
R208
*
POWER
JL336
JL210
Q211
2SD601A-QRS-TX
L2_AU_L
UN2213-TX
Q377
0.01u
C207
AU_GND
330p
CH
C252
220uH
L211
*
0.47u
B
C220
UN2115-QRS(TX)
Q380
*
2.2u
F
C251
HA21
JL208
3P
CN332
1
FE HEAD
2
NC
3
GND
1k
R225
47k
R361
100
R215
1500p
B
C356
15k
R362
100uH
L203
*
XX
JS308
CL303
4P
CN202
1
HF ADJ
2
PB RF
3
V.SWP
4
GND
CL203
470
R217
*
50V
2.2u
C248
JL221
CL294
4.433619MHz
X201
POWER
B
C299
0.01u
*
JL211
R216
100
0.01u
C215
B
DGND
16V
22u
C363
PAL
XX
JS204
10u
C355
16V
22k
R379
CSYNC
0.1u
F
C208
33k
R354
4700
R207
2200p
C203
*
2SD601A-QRS-TX
Q372
VDAT
2200p
C256
*
CL299
7P
CN331
1
X CTL (X)
2
Y CTL (Y)
3
CTL GND
4
PB A HEAD
5
REC A HEAD
6
BIAS GND
7
A ERASE HEAD
JL204
CL230
50V
4.7u
C298
*
JL334
XX
JS205
150k
R352
16V
47u
C381
*
SW5V
50V
1u
C361
6p
CH
C226
AFENV
SCK
120k
R226
Q374
UN2113-TX
2200
R386
0.1u
F
C233
220
R223
0.01u
B
C249
1500
R206
SB-D3245
T372
1
2
3
4
6
7
8
100
R353
CTL+
HC35
JL303
JL341
0.01u
B
C294
*
XX
JS302
*
UN2213-TX
Q378
*
R211
0
*
VOUT
100uH
L372
XX
R358
*
VIDEO_RF_IN
0.01u
B
C244
SDA
4700
R365
FULERA
47uH
L215
BIAS_GND
2.2u F
C292
*
R364
0
2.2u F
C201
JL207
CTL-
16V
10u
C350
22p
C214
GND
2SC4040-TL2-Q
Q375
10p CH
C230
*
JL201
0.01u
B
C237
±0.5% 10k
R291
*
12uH
L204
15k
R360
XX
R377
100uH
L381
*
XX
JS378
UN2213-TX
Q206
16V
10u
C296
*
1500p
B
C382
*
APC
XX
D201
4700p
B
C217
JL236
100
R295
*
JL305
8200
R299
*
2SB709A-QRS-TX
Q201
1k
R228
0.1u
F
C240
10k
R350
100
R202
*
HC37
0.001u
C371
B
AUDIO_RF_IN
6800
R205
0.01u
B
C246
ACK
UN2115-QRS(TX)
Q376
1.5M
R368
150p
CH
C227
220
R222
UN2213-TX
Q204
50V
4.7u
C364
XX
R359
*
4700p
C202
*
JL203
0.022u
C352
B
JL222
JL335
JL206
11P
CN201
*
1
AUDIO CH2
2
AUDIO COM
3
AUDIO CH1
4
FE
5
FE
6
SP CH1
7
SP COM
8
SP CH2
9
LP CH1
10
LP COM
11
LP CH2
CL295
0.60mm
R381
*
RFENV
0.1u
F
C241
JL214
16V
47u
C250
0.1u
F
C228
10u
C359
16V
MESEC
QVD
XX
R292
*
50V
1u
C362
1u
B
C253
JL333
15p
CH
C232
*
PP
C375
6800p
*
JL238
0.022u
B
C231
10k
R376
PB
CL231
JL337
XX
JS304
*
16V
10u
C245
JL225
0.60mm
JS306
JS379
0.01u
B
C365
330
R372
0.1u
F
C236
0.033u
C206
R378
10k
R351
3300
3300
0.01u
B
C239
10uH
L214
JS201
JL220
47k
R363
PS331
0.1u
F
C222
JL213
47k
R384
*
HA22
PP
0.047u
C380
*
2200p
C255
*
22u
C354
16V
SB-D3244
T371
1
2
3
4
5
6
7
8
XX
C210
*
D_GND
1500p
B
C357
CL291
NTSC
NA8
10k
R375
3579.545kHz
X202
*
27k
R356
0.1u
F
C379
0.22u B
C291
*
JL212
50V
3.3u
C243
JL332
R209
*
1k
XX
L380
*
50V
4.7u
C358
XX
C211
*
XX
R212
*
330
R371
PET
220p
C373
XX
JS307
2SD601A-QRS-TX
Q373
0.60mm
JS305
*
*
50V
4.7u
C229
XX
CH
C263
*
JL224
UN2213-TX
Q210
XX
R367
XX
C360
*
XX
JS202
16V
47u
C378
XX
L371
JS203
JL235
15
R380
*
10uH
L206
JL223
100
R214
*
4700p
C254
*
JL209
1u
B
C216
XX
R385
*
XX
C212
*
JL205
2.2M
R219
4700
R218
JL331
10uH
L202
JL291
RFSWP
JL202
UN2213-TX
Q202
XX
L351
0.001u
C219
GND
JL237
JL217
HC36
XX
C213
*
RECP
4700p
C257
*
1u
B
C224
*
1k
R224
JL292
2200p
C204
*
0.01u B
C383
*
330p
50V
50V
C264
*
IC201
HA118217F
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
GND
D_GND
HT43
CN6
V81
V17
POWER
VV21
HC37
HT42
HC36
V82
CN7
VV46
V51
CN7
B34
V52
AFENV
VV21
HC35
B34
VV35
V97
V76
V16
POWER
V64
VR62
VV26
CN6
HC37
V50
HA21
A99
V64
V16
VR62
V84
VV37
VV35
HT42
HC36
V82
A4
VV26
HC35
AFENV
B33
V76
V97
HA22
V81
A99
V84
A4
VV37
AV-SS
HA21
VV44
VR63
B33
V76
V51
VV44
HT43
V50
VV46
HA22
V52
SW5V
A4
BIASGND
BIASGND
BIASGND
AUGND
DGND
DGND
GND
GND
V17
VR63
P 0.0
P 0.3
2.5
NAOUT
TO POWER
R-24.9
11.9V
2.5
ANGND
TO HIFI
P 4.9
P 0.3
MOD_AU
R11.8
TO IN/OUT
2.5
P 0.7
P11.9
NAOUT
2.5
R 0.1
R-24.8
BIAS ERASE
ANGND
OSC
R-20.6
0.315A
R 0.1
2.8
2.4
P11.9
P 0.0
11.9
P 0.5
R11.5
R 2.6/P2.4
0.3
NAIN
R11.5
AUDIO REC
R-0.4
P 0.3
BIAS ERASE
P 0.3
AUDIO CH2
OSC
P 0.0
4.9
AUDIO CH1
R 0.3
R 4.9
2.5
NAIN
R11.4
LP CH1
SP CH1
AUDIO CH1
AUDIO CH2
LP CH2
SP CH2
CHECK
(JIG)
(JIG)
MA-402 (2/8)
(SEE PAGE 4-13)
(SEE PAGE 4-13)
MA-402 (5/8)
(SEE PAGE 4-21)
(SEE PAGE 4-21)
MA-402 (2/8)
(SEE PAGE 4-13)
(SEE PAGE 4-13)
MA-402 (8/8)
(SEE PAGE 4-27)
(SEE PAGE 4-27)
MA-402 (6/8)
(SEE PAGE 4-23)
(SEE PAGE 4-23)
MA-402 (4/8)
(SEE PAGE 4-19)
(SEE PAGE 4-19)
2.2
1.3
2.4
R0/P3.8
2.4
2.4
2.5
2.4
4.9
R0.1/P2.2
0.3
R0.1/P2.2
R0.1/P2.2
R0.1/P2.2
4.9
0.1
R0/P1.7
2.5
2.4
4.9
0
R1.9/P1.3
R1.9/P1.3
R2.6/P3
R3.3/P0.6
2
2.3
3
2.7
2.2
1.9
3
2.1
1.4
2
2.8
1.9
2.8
2.8
3
4.9
0.1
4.9
3
4.9
4.9
2
4.9
2.5
2
0.4
2.9
2.3
1.8
4.9
1.1
0.2
0.2
4.6
4.6
2.6
2.5
2.3
4.1
1.9
1.8
2.7
2.5
4.9
R0.3
P 0.0
IC291
IC201
B+
B+
B+
B+
B+
B+
B+
B+
B+
1
2
3
4
5
6
7
8
9
10
11
12
13
12
15
14
17
15 16
1
2
3
4
5
6
VIDEO REC/PB AMP
VIDEO INPUT SELECT
Y/C PROCESS
NORMAL AUDIO PROCESS
VIDEO INPUT SELECT
Y/C PROCESS
NORMAL AUDIO PROCESS
B+
B+
B+
B+
B+
B+
DRUM FF IN
CK DET
DISCRI
ENV OUT
GND
SP CH2(+)
SP CH2(-)
SP CH1(-)
SP CH1(+)
VCC
SP CH1(+)
SP CH1(-)
SP CH2(-)
SP CH2(+)
AUDIO ALC FILTER
AUDIO VCC
S/VHS
REC Y+C OUT
MUTE
AUDIO PB
EQ OUT
EQ OUT
AUDIO PB IN (-)
AUDIO PB IN (+)
AUDIO PB EP SW
AUDIO REC OUT
AUDIO GND
B.G.
AUDIO LINE IN3
AUDIO LINE IN2
AUDIO LINE IN1
AUDIO BYPASS
AUDIO LINE OUT
VCC
MAIN EM OUT(REC)
MAIN DEEM IN(PB)
MAIN EM IN(REC)
MAIN DEEM OUT(PB)
S-DET
E-PEAK
G-EQ
CLAMP DRIVE
Y-CCD DRIVE
ME ALC/PB FM AGC
MAIN CLAMP IN
ME FBC(REC)
APL(PB)
Y-CCD CLMAP
Y-CCD LPF OUT
CCD ADJ
FROM Y-CCD
GND
LINE IN3
AGC DET
LINE IN2
LINE IN1
AV TAB
AV TAB
AV TAB
CCD C-OUT
CCD VCC
CCD MODE COUNT IN
CCD TAB
CCD Y-OUT
CCD TAB
CCD Y-IN
CCD TAB
CCD TAB
CCD CLK IN
CCD GND
CCD C-IN
AV TAB
AV TAB
AV TAB
SYMC SEP OUT
SP/EP
PB C OUT
SEP C IN
MESECAM DET
PB APC/REC APC
3.58/4.43 X’tal IN
REC APC
X’tal OSD OUT
ACC DET
3.58 X’tal IN
CR-DET
CCD SIG 2fsc OUT
GND
DO OUT
LC-VCP
2fsc VCO DET
KILLER OUT
IIC DATA
IIC CLK
VCC
C-CCD DRIVE
LEVEL DET
C-CCD FB-IN
CCD CONT
VIDEO OUT ALC
PB C-OUT
COLOR IN
VIDEO OUT FBC
Y OUT
SQ IN
AU GND
MA-402 (7/8)
(SEE PAGE 4-25)
(SEE PAGE 4-25)
7
CTL HEAD
AUDIO REC/PB
HEAD
HEAD
AUDIO ERASE
HEAD
HEAD
FULL ERASE
HEAD
HEAD
CHROMA
Y
Y/CHROMA
AUDIO
SIGNAL
SIGNAL
REC
PB
VIDEO SIGNAL
0
R3.6/
P2.1
2.7
4.5
2.4
2.1
R2.7
/P1
1.8
2.3
2.1
2.8
2.8
4.7
4.7
R1/
P2.6
0
4.7
4.7
4.7
2.1
3.1
3
0.1
2.3
2.1
1.9
2.8
2.4
0.1
BUFFER
AFC FILTER
SWITCH
SWITCH
INVERTER
Q203,Q204
PAL/NTSC SWITCH
PAL/NTSC SWITCH
4.9
2.3
1.6
0
5
5
0
1.2
0
4.9
0.1
R3.6/P2.1
R4/P1.5
4.9
0
5
BUFFER
REC TRAP
SWITCH
SWITCH
Q372,Q373
HEAD SWITCH
HEAD SWITCH
HEAD CONTROL
SWITCH
SWITCH
SWITCH
BIAS ERASE
OSC
OSC
SWITCH
LF1AS
LF1MI
LF1AS
LF1AS
LF1AS
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
B
C
D
E
F
G
H
I
J
SLV - LF1
1
IC201 ia REC/PB
5.3 Vp-p (H)
2
IC201 ih, il REC
40 mVp-p (H)
3
IC201 ul PB
720 mVp-p (H)
4
IC201 uk PB
640 mVp-p (H)
5
IC201 ug REC/PB
496 mVp-p (4.43 MHz) (PAL)
6
IC201 ua REC/PB
608 mVp-p (3.58 MHz) (NTSC)
7
IC201 y; REC/PB
320 mVp-p (H)
8
IC201 tk REC/PB
REC: 512 mVp-p (H)
PB : 584 mVp-p (H)
PB : 584 mVp-p (H)
9
IC201 t; REC/PB
4.6 Vp-p (H)
q;
IC201 e; REC/PB
1.1 Vp-p (H)
qa
IC201 wh REC/PB
REC: 512 mVp-p (H)
PB : 584 mVp-p (H)
qs
IC201 qk, ql, wd REC/PB
REC: 472 mVp-p (H)
PB : 504 mVp-p (H)
qd
IC201 wa REC/PB
392 mVp-p (H)
qf
IC291 w; PB
152 mVp-p (H)
qg
IC291 4, qk REC
2.1 Vp-p (H)
qh
IC291 qk PB
1.9 Vp-p (H)
qj
IC291 4 PB
2.2 Vp-p (H)
MA-402
BOARD (1/8)
(VIDEO, AUDIO BLOCK)
4-11
4-12
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
B
C
D
E
F
G
H
I
J
SLV - LF1
4-13
4-14
SYSTEM CONTROL
MA-402 (2/8)
MA-402 BOARD(2/8)
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
P :PB MODE
MA-402 (SYSTEM CONTROL) SCHEMATIC DIAGRAM
– Ref. No: MA-402 Board; 1000 series –
• See page 4-5 for printed wiring board.
– Ref. No: MA-402 Board; 1000 series –
• See page 4-5 for printed wiring board.
JL119
0.01u
B
C160
25V
47u
C114
JL126
100
R172
10k
R176
*
32.768kHz
X102
10k
R108
470
R175
12p
C163
2.2u
F
C151
JL118
470
R112
JL136
RFENV
JS191
0
JS103
*
XX
X152
*
0.22u
C167
0.1u
B
C143
CTL+
C102
XX
*
470
R160
UN5V
0.1u
B
C105
10k
R124
680
R174
XX
CN104
1
MD0
2
SO1
3
SI1
4
RESET
5
GND
6
FLASH WRITE ENABLE
7
VCC
FULERA
TV/VTR
Q152
*
L173 18uH
1SS119-25TD
D151
XX
B
C197
*
JL139
3300p
C107
PLLDAT
AMUTE
68k
R192
F.MONO
JL117
1k
R109
JL503
470
R451
SW2/MAIN/SAP
TUNER_MUTE
JL125
DGND
2SB709A-QRS-TX
Q172
0
JS151
*
*
SFH5110-40
IC502
1
OUT
2
GND
3
VCC
10k
R162
0.068u
C053
JL129
NTSC
SAP_BILL_OUT/SECON
10k
R132
0.1u
F
C169
12p
CH
C166
*
NAPB
SDA
470
R115
47k
R191
*
MPG06D-6052PKG3
D403
UN2211-TX
UN2211-TX
Q151
*
100k
R154
50V
4.7u
C154
1M
R155
MESEC
0.1u
B
C113
VDAT
POWER
JL132
PLLCLK
UN2211-TX
Q171
0.60mm
JS102
SW1/STEREO_OUT
0.01u
B
C155
OSD
10k
R194
1k
R163
10k
R131
0.60mm
R106
10k
R110
JL134
4700
R177
R177
20p
CH
C110
1/4W
47k
R526
0.22u
B
C112
JL130
0.1u
B
C193
JL110
10k
R123
1/10W
2012
R103
*
10k
0.01u
B
C164
22uH
L151
0.22
C103
*
JL123
2SD601A-QRS-TX
Q175
*
50V
4.7u
C152
JL113
1k
R107
JL131
1SS119-25TD
D100
0.01u
B
C142
1k
R171
VOUT
MPG06D-6052PKG3
D103
JL122
MM1256AFBE
IC141
1
GND
2
NC
3
NC
4
NC
5
VCC 2
6
OUT 2
7
VCC 1
8
OUT 1
100k
R129
0.1u
F
C171
47k
R119
22p
C100
220k
R142
PB
JL124
1500p
C192
0.01u
B
C456
470k
R143
JL128
33k
R100
RFSWP
PAL
1k
R126
JL137
X151
17.734475MHz
*
XX
D172
12p
CH
C161
SCK
1k
R130
100
R152
JS101
JL133
0.22u
B
C072
1k
R164
10k
R158
22uH
L171
R102
*
2SD601A-QRS-TX
Q153
470k
R151
IC142
M24C08-WMN6T(A)
NC
1
NC
2
NC
3
NC
4
DATA
5
CLK
6
WRITE CONT
7
VCC
8
CSYNC
JL140
AFT
SW5V
CTL-
XX
R173
10MHz
X101
ACK
AFENV
20p CH
C111
VCLK
JL135
XX
D171
RECP
10k
1k
R101
*
UN2211-TX
Q192
*
47k
R118
56p
CH
C172
0.01u
B
C141
10k
R193
16V
47u
C194
10k
R105
XX
L174
7p
CH
C162
2SD601A-QR
Q191
*
0.1u
C101
F
0.60mm
JS171
10k
R165
0
R166
UN5V
XX
Q173
APC
0
R167
0
R178
*
JL138
JL115
47k
R120
1k
R159
22uH
L172
47k R125
5P
CN105
1
GND
2
DATA
3
CLK
4
RESET
5
WRITE CONT
470
R113
15p
CH
C109
R153
4700
4700
R161
R161
JL501
UN2211-TX
Q174
QVD
10V
100u
C455
33k
R156
0.01u
C106
B
0.1u
C168
15p
CH
C108
GND
1M
R133
JL120
JL192
1u
B
C173
*
47k
R116
JL121
220k
R144
R122
1M
10k
R127
CH
100p
C159
*
ENABLE
AF_REC_P
JL116
10p
C165
16V
22u
C195
1k
R117
10k
R157
10V
470u
C104
JL127
R057
10k
AFSWP
470
R114
1k
R121
10k
R128
JL100
22k
R111
680p
50V
C191
*
JL452
220p
C196
XX
JS104
100
R104
GND
CAM
DRUM_PWM
DRUM_QR
DRUM_PG
CAP_RVS
CAP_FG
CAP_QR
CAP_PWM
CAP_TRQ_PWM
REC_PROOF
MODE4
MODE3
MODE2
MODE1
T_REEL
S_REEL
END_LED
S_SENS
DRUM_FG
T_SENS
FUNC_KEY_1
FUNC_KEY_2
PCO
FLD_CS
SCK1
SO1
SI1
ETR1
ETR2
POWER_FAIL
PCO
D_5.2V
SDA
SCK
D_GND
POWER
GND
D_GND
SDA
SCK
IC101
*
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
101
102
103
104
105
106
107
108
109
110
111
112
M103
T83
HT62
HT61
FL65
FL63
FL58
V59
V102
V100
FL64
M38
M39
S43
M9
M104
V18A
A96
V109
V111
A89
V105
V60
V59
A72
A71
V34
V84
H106
H35
V19
C3
C4
V102
V100
V60
T68
T93
T69
T25
T83
T95
T94
HT61
HT62
H106
V109
V67
V18A
V17
C4
T66
V67
T66
V70
HT51
HT61
C3
T95
T94
T93
T25
M33
M37
M42
M92
M49
M91
M90
M45
A71
A72
HT51
T66
V34
T68
V70
A89
M86
V105
H35
V67
V24
V24
HT62
T69
V84
V19
C53
C53
A96
V17
V97
V97
V67
S27
POWER
M40
M41
S28
S54
S55
M108
V30
V30
M107
HT61
HT62
FL65
FL64
HT82
M85
M45
M103
M90
M9
M91
M108
M85
M86
M40
M39
M33
M38
M37
M42
M41
M49
M32
M92
M104
M33
V50
K1
S28
S27
M107
FL65
FL64
FL63
FL58
S55
S54
UN5VBCAP
UN5VBCAP
UN5VBCAP
UN5VBCAP
CN2
HT42
HT43
V111
HT74
V111
HT56
HT57
POWER
UN5V
V50
HT51
HT74
GND
GND
DGND
DGND
DGND
DGND
DGND
DGND
HT82
OSD
SYSCON
RESET
CTL(-)
SVSS
FLD CS
C.KILLER DET
Vss
TU AFT
CAM
MDO
CAP TRQ PWM
CAP FG
AFCosc
SECAM DET
AF SWP
32kHz X
’tal
ETR 2
CVin2
CVout
REC PROOF
CAP QR
Vss
SAP\BILL OUT\SECAM ON
T REEL
OSD CTL
RF SWP
SCL0
POWER CONT
APC PWM
32kHz X
’tal
4fsc out
AUDIO DUB
10MHz X
’tal
DEST1
SCL1
TV / VTR
CAP PWM
CTL SMT
CTL FB
RESET
sO1
SCK1
AVcc
DRUM PG
HEAD CLOG LED
REMOTE CON
PB
Cap Connect to Vss
MODE 1
AVSS
AFC LPF
RR LED
TA MUTE\OSD MIX
AUDIO RF
Vcc
REC P
FULL ERASE
POWER FAIL
Flash Write Enable
SDA0
PLL DATA
QVD
SEARCH LED
APC Error
10MHz X
’tal
MODE 4
F.MONO\PAL
NA PB
Drum QR
MAIN\SAP\SW2
AFCpc
CAP RVS
MESECAM DET
CVin1
Csync/Hsync
Func. Key 2
SVCC
CTL(+)
SAT. SYNC. LED
ETR 1
IN SELEC
VIDEO RF
PLL CLOCK
BLUE BACK
CTL AMP(0)
A Mute
Vss
Vcc
4fsc in
STEREO OUT\SW1
S REEL
WRITE CONT
SDA1
OSDVcc
CTL BIAS
DRUM FG
END LED
S SENS
SI1
AF REC P
T SENS
DEST2
VLPF/Vsync
TU ENABLE
CSync
MODE 2
DRUM PWM
OSDVss
Func. Key 1
MODE 3
CTL REF
HD642917Y
MA-402 (5/8)
(SEE PAGE 4-21)
(SEE PAGE 4-21)
MA-402 (1/8)
(SEE PAGE 4-9)
(SEE PAGE 4-9)
MA-402 (6/8)
(SEE PAGE 4-23)
(SEE PAGE 4-23)
MA-402 (4/8)
(SEE PAGE 4-19)
(SEE PAGE 4-19)
MA-402 (1/8)
(SEE PAGE 4-9)
(SEE PAGE 4-9)
MA-402 (8/8)
(SEE PAGE 4-27)
(SEE PAGE 4-27)
MA-402 (3/8)
(SEE PAGE 4-17)
(SEE PAGE 4-17)
MA-402 (3/8)
(SEE PAGE 4-17)
(SEE PAGE 4-17)
MA-402 (7/8)
(SEE PAGE 4-25)
(SEE PAGE 4-25)
2.5
2.5
2.5
2.5
2.5
2.6
2.4
4.4
4.9
1.9
1.9
2.1
1.7
0.2
2.6
1.7
4.9
2.1
2.5
2.4
0.2
4.6
5.3
5.3
5.3
5.2
2.7
3.7
2.5
2.5
0
3.1
5.4
4.7
4.7
5.1
5.2
2.3
2.6
5.2
5.2
5.2
5.0
5.0
5.2
3.9
5.1
5.1
5.0
5.0
4.6
0.4
5.2
5.1
1.5
1.9
2.1
4.8
2.6
2.5
3.3
5.1
3.8
5.0
0.1-5
0.1-5
0
0
0
0
0
5
R0.1/P11.8
0
2.7
0
4.4
2.7
2.6
0.2
0.5
4.8
0
4.1
0.1
5.1
1.8
5.2
0.1
R5/P0
2.8
3
2.7
2.7
5.3
5.4
4.1
5.2
5.2
5.2
5.0
5.0
0.4
2.5
1.2
1.7
5.1
4.8
5.2
7.0
2.4
5.4
0
IC101
IC141
IC142
POWER FAIL DET
RESET PULSE GENERATOR
RESET PULSE GENERATOR
EEP ROM
SERVO/SYSTEM CONTROL
OSD
OSD
8
1
9
10
3
MA-402 (7/8)
(SEE PAGE 4-25)
(SEE PAGE 4-25)
11
12
14
15
13
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
INVERTER
VIDEO
BUFFER
BUFFER
BLUE BACK
SWITCH
SWITCH
OSD MIX
11
13
12
6
5
2
1
10 3 4
7
8
9
14
REC
REC/PB
PB
DRUM SPEED SERVO
DRUM PHASE SERVO
DRUM SERVO(SPEED AND PHASE)
CAPSTAN SPEED SERVO
CAPSTAN SERVO (SPEED AND PHASE)
REF. SIGNAL
PB
VIDEO
SIGNAL
SIGNAL
Y/CHROMA
SIGNAL PATH
LF1AS
LF1MI
LF1MI
LF1MI
LF1MI
LF1MI
LF1MI
LF1AS
LF1MI
LF1AS
LF1MI
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
B
C
D
E
F
G
H
I
J
SLV - LF1
MA-402
BOARD (2/8)
(SYSTEM CONTROL)
4-15
4-16
6
IC101 ug REC/PB
2.6 Vp-p (32.768KHz)
3
IC101 9 REC/PB
3.8 Vp-p
0
IC101 <z/v REC/PB
5.0 Vp-p (300Hz)
qs
IC101 <z/n REC/PB
5.0 Vp-p (25Hz)
qd
IC101 <zzz REC/PB
4.3 Vp-p (15.7KHz)
qf
JL 192 PB
4.64 Vp-p (25Hz)
qa
IC101 <z/b
REC/PB
5.0 Vp-p (25Hz)
1
IC101 3 REC
4.64 Vp-p (25Hz)
2
IC101 4 REC
4.64 Vp-p (25Hz)
4
IC101 qj REC/PB
2.36 Vp-p (15.7 KHz)
5
IC101 ql REC/PB
2.16 Vp-p (15.7 KHz)
7
IC101 uk REC/PB
4.3 Vp-p (10MHz)
8
IC101 if REC/PB
5.0 Vp-p (25Hz)
9
IC101 <z/c REC/PB
5.0 Vp-p (25Hz)
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