Sony RMT-V298A, Руководство по обслуживанию

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SLV-ED15/ED25/ED33/ED39/ED55/ED66/ED85/ED88/ED89/ED95/EZ11/EZ22/EZ44/EZ66/EZ77
4-13 4-14
MA-377 (SYSTEM CONTROL) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-377 board; 1,000 series –
SYSTEM CONTROL
MA-377
JL120
1k
R159
JL126
47k
R120
470 R115
3300p
C107
10k
R128
JL129
47k
R118
47k
R116
JL121
RECP
470k
R151
MM1256AFBE
IC141
1
GND
2
NC
3
NC
4
NC
5
VCC 2
6
OUT 2
7
VCC 1
8
OUT 1
10k
R127
AFENV
JL128
20p C111
47k
R125
1k
R117
NTSC
15uH
L152
16V
10u
C194
16V
10u
C153
16V 22u
C195
JL191
1k
R171
R122
1M
120p
C196
39p
C158
OSO
10k
R176
1k
R154
AFSWP
IC101
SW1/F.MONO 1
AN GND 2
APC ERROR 3
ETR 1 4
FUNC KEY2 5
TU AFT 6
FUNC KEY1 7
POWER FAIL 8
ETR 2 9
DEST
10
S SENS 11
T SENS
12
VIDEO RF
13
AU RF
14
UN5V
15
RESET 16
SW2
17
PAL
18
OSD MIX
19
SP 20
NA PB 21
VCC
22
AF SWP
23
RF_SWP
24
CAP-VS 25
DRUM_VS
26
QVD
27
C ROTARY
28
H AMP SW 29
COMP 30
CTL+
31
CTL-
32
VSS(SERVO)
33
CTL AMP1
34
CTL AMP2
35
CTL AMP3
36
CTL AMP OUT
37
DRUM FG
38
DRUM PG
39
CAP FG
40
VCC(SERVO)
41
VCC(OSD)
42
VIDEO IN
43
V REF
44
VIDEO OUT
45
CHAR BIAS
46
AFC LPF
47
AFC OSD
48
VSS(OSD)
49
D OSC IN
50
D OSC OUT
51
4 fsc IN
52
4 fc OUT
53
C SYNC
54
REC PRF
55
IIC DATA
56
IIC CLOCK
57
DRUM QR
58
PB
59
AF REC P
60
TV/VTR
61
IIC CLK(VIDEO)
62
IIC DATA(VIDEO)
63
BLUE BACK
64
APC PWM
65
CAP TRQ PWM
66
SECAM ON
67
TEST
68
(OUT) 32kHz
69
(IN) 32kHz
70
VSS
71
(IN) 10MHz
72
(OUT) 10MHz
73
END LED
74
P CONT
75
RR CLK
76
RR DATA
77
OSD SELECT
78
AUDIO MUTE
79
WRITE CONT
80
IN SEL
81
REMOCON
82
CAM
83
MODE 1
84
MODE 2
85
MODE 3
86
MODE 4
87
T REEL
88
S REEL
89
FLD CS
90
FULL ERASE
91
REC P
92
CAP RVS
93
CAP QR
94
S CLOCK_O
95
S IN_0
96
S OUT_O
97
PLL CLOCK
98
TU ENABLE
99
PLL DA
T
A
100
2SD601A-QRS-TX
Q175
10MHz
X101
NAPB
0.022u
C193
12p
C165
CTL-
50V
4.7u
C154
UN2211-TX
Q174
AMUTE
CL101
0.01u
C155
1k
R194
22uH
L171
56p
C172
180k
R192
680
R174
22k
R156
100
R152
0.1u
C171
JL115
CTL+
1800
R153
470
R175
1SS119-25TD D151
22uH
L172
JL124
22k R111
1M R155
2SB709A-QRS-TX
Q172
100
R172
15p
C108
UN2211-TX
Q171
1M
R193
39p
C157
UN2211
Q151
JL117
10k R110
10k
R102
15p
C109
PLLDAT
68
R104
4700
R177
470
R113
100p
C156
470
R114
PLLCLK
0.1u
C105
10k R108
SDA
10k
R105
0.01u
C106
50V
4.7u
C152
ENABLE
470p
C191
3300p
C197
22uH
L151
JL116
AFT
SW2
1k
R103
*
R101
PCO
M24C02-WMN6T
IC142
1
NC
2
NC
3
NC
4
NC
5
D
ATA
6
CLK
7
WRITE CONT
8
NC
C102
5.5V
0.47F
2SD601A-QRS-TX
Q191
47p
C192
JL192
SW1/F.MONO
JS101
470
R112
1k
R107
JS191
SCK
JL127
1k
R109
0.22u
C112
0
JS151
2.2u C151
0 R106
10k
R165
0.22F C103 5.5V
1k
R164
220k
R142
2SD601A-QRS-TX
Q153
10k R157
220k
R144
0.1u
C168
0.01u
C141
4700
R161
0.1u
C143
10k
R162
0.01u
C142
15p
C166
100p
C159
10V
470u
C104
470k
R143
0.22u
C167
0.1u
C101
14.31818MHz
X152
UN2211
Q152
*
C161
7p
C162
17.734475MHz
X151
10k
R158
JL118
47k
R119
JL119
JL123
32.768kHz
X102
JL122
20p C110
1k
R163
JL125
1k
R121
100k
R129
0.1u
C113
1k
R130
JL100
47k
R191
UN2211-TX
Q192
JS171
5P CN104
1 GND
2 DATA
3 CLK
4
RESET
5 WRITE CONT
10k
R131
JL131
JL134
JL135
10k
R123
JL132
JL133
0 R166
0 R167
220
R178
VCLK
APC
PAL
QVD
JS102
VOUT
CSYNC
INS
VDAT
RFSWP
RFENV
SW5V
FUNC_KEY2
1u
C173
D_IN
CLK
CS
D_OUT
REMOCON
ETR2
ETR1
CAM
DRUM_VS
DRUM_FG
DRUM_PG
CAP_RVS
CAP_FG
CAP_QR
CAP_VS
CAP_TRG_PWM
MODE_4
MODE_3
MODE_2
MODE_1
T_REEL
S_REEL
S_SENS
T_SENS
P.CONT
REC_PRF
DRUM_QR
END_LED
UN5V_BCAP
1
A
UN5V
FUNC_KEY1
FULERA
SECON
SCK
SDA
SCK
SDA
M25
M11
M12
M39
M88 M89 M93 M94
M26
T01
T06
HT56 HT57
S7
FL96 FL95 FL90
A79
V54
V62
FL97
M83 M84 M85 M86 M87
S82
M40 M38
A21
A79
A92
V18A
H14
V45
A91 A92
C31
C32
V63
T17
T17
T98
T01
T06
T100
T99
T100
T99 T98
V13
A21
H23
V24
V27
V65
V18A
S4
S9
V43
V75
M55
M58
M74
T19
T19
H14 V67
HT56
HT57
V65
V62
V54
V18
V24
V81
V13
V63
V27
FL96
FL97
FL95
FL90
M12
M89
M84
M85
M86
M11
M88
M87
M66
M25
M94
M40
M93
M39
M38
M26
M83
H23
S82
S9
S4
C32
M66
V75
HT56
M74
M58
M55
V45
HT57
V81
C31
S7
V43
A91
V67
HT56
HT57
RESET
E
L
9 5 19
C
16 13 11 14 15 3 17 7
F
2
05
G
20 12
B
8
I
10
D
6
MA-377 BOARD (2/7)
K
4
J
H
18
MA-377 BOARD(7/7)
(SEE PAGE 4-26)
(SEE PAGE 4-22)
MA-377 BOARD(5/7)
(SEE PAGE 4-10)
MA-377 BOARD(1/7)
(SEE PAGE 4-24)
MA-377 BOARD(6/7)
(SEE PAGE 4-19)
MA-377 BOARD(4/7)
(SEE PAGE 4-10)
MA-377 BOARD(1/7)
(SEE PAGE 4-24)
MA-377 BOARD(6/7)
MA-377 BOARD(6/7)
(SEE PAGE 4-24)
MA-377 BOARD(3/7)
(SEE PAGE 4-17)
(SEE PAGE 4-17)
MA-377 BOARD(3/7)
CHECK
(WRITER JIG)
IC101
SERVO/SYSTEM CONTROL
IC141
POWER FAIL DET
IC142
EEP ROM
(SEE PAGE 4-26)
MA-377 BOARD(7/7)
4.6 4.6 5 5.1 4.8 5 5 4.9
5
2.6
0
2
0
0.6
2.5
0
0
5
2.5
1.8
R0.1/P11.8 5 R0/P1 2.2 0.1-5 5 4.7 0 5 2.7 5 0 0.1-5 0 4.4 0 0.5 0.2 4.8 0.2
5
5
5
0
2.4
*
5
1
*
1.5
2.7
2.7
4.7
4.6
0
2.6
4.6
4.6
0.3
2.3
5
1.1
2.3
1.1 1.5 2.5 2.3 2.3 1.3 4.9 2.5 4.9 2.4 2.4 2.4 2.4 0.3 2.4
R2.8/P2.4
R2.1/P2.4
5
0
0
0.1
2.7
5
2.7
R5/P0
3
0
1
2.8
5
5
R0.2/P3.1
5
2.5
5
R0/P3.6
5
5
4.7
3.5
4.9
5
2
0
B+
B+
B+
B+
B+
B+ B+
B+
B+
B+
B+ B+
B+
B+
B+
B+
B+
1
2
3
4
5
6
7
8
9
11
10
12
13
10
OSD
HD6433977R-NZ
HD6433977R-MI
HD6433977R-GA
HD6433977R-AZD
HD6433977R-AZ
HD6433977R-AS
:ED77NZ
:ED95MI
:EXCEPT ED95MI/EZ11/
EZ22/EZ44/EZ66/EZ77
:EZ11
:EZ22/EZ44/EZ66
:EZ77AS
:ED85/EZ66
15k
1.2k
:ED66
2.7k
:ED85/ED95MI
:ED15/ED25/ED33/EZ11/EZ22
4.7k
10k
6.8k
:ED55/EZ44
:ED39
NOT USED
:ED89 22k
(ED95:MN,TH/EZ77)
*R101
VIDEO
BUFFER
BLUE BACK
SWITCH
INVERTER
Q175
OSD MIX
Q191,192
AUDIO DUB
OSC
Q151
Q152
OSC
ED95MI ED95MI
EXCEPT
ED95MI
*C161
:EXCEPT ED95MI
10p
12p :ED95MI
EZ44/EZ66/EZ77
EXCEPT EZ11/EZ22/
ED66/ED88/ED95:MN,TH/EZ77
25
ED33/ED39/ED66/ED88/ED89
EXCEPT ED33/ED39/ED66/ED88/ED89
ED85/ED88/ED89/ED95/EZ66/EZ77
EXCEPT EZ11/EZ22/
EZ44/EZ66/EZ77
(SEE PAGE 4-10)
MA-377 BOARD(1/7)
3
11
(SEE PAGE 4-20)
MA-377 BOARD(4/7)
12
2
13
14
5
15
16
PWM-DC CONV
Q153
18
RESET PULSE GENERATOR
17
Ref.signal
Drum phase servo
Capstan speed servo
REC REC/PB
Capstan servo(speed and phase)
Drum speed servo
PB
Drum servo(speed and phase)
*:IMPOSSIBLE TO MEASURE THE
VOLTAGE AT THE MARKED POINTS.
NO MARK:REC/PB MODE
R:REC MODE
P:PB MODE
Y/CHROMA
VIDEO
SIGNAL
SIGNAL PATH
PB
0