Sony BVW-55, Руководство по обслуживанию

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2-13
BVW-55
IC
CXA1179N (SONY)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 NC
GND
GND
AM IN
TEMP COMP
DECOUP
LIM OUT
LIM IN
LIM DC
AMP2 OUT
AMP2 IN
AMP1 DC
AMP1 OUT
AMP1 IN V
CC
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
CLAMP IN
HOLD CAP
EMP IN
EMP OUT
D. C
W. C
FM IN
V REF IN
BAL 1
BAL 2
FM OUT
GND
NC
1
28
29
26
4
21
22
19
20
11
12
13
6
7
23
24
AMP1 IN
HOLD CAP
CLAMP
EMP IN
AMP2 IN
V REF
FM IN
BAL2
BLL 1
DECOUP
TEMP COMP
AM
LIM DC
LIM IN
W. C
D. C
2
3
25
5
17
AMP1 OUT
AMP1 DC
EMP OUT
AMP2 OUT
FM OUT
9
LIM OUT
V CC
V
CC
VIDEO Y/C REC FM MODULATOR FOR BETACAM
—TOP VIEW—
AMP1 IN
HOLD CAP
CLAMP
EMP IN
AMP2
BAL 2
BAL1
V REF
FM IN
DECOUP
TEMP COMP
AM
LIM DC
LIM IN
W. C
D. C
S/H
FM
MOD
AM
MOD
TEMP
COMP
CLIP
AMP1 OUT
AMP1 DC
EMP OUT
AMP2 OUT
FM OUT
LIM OUT
2
3
25
5
17
9
LIMIT
1
28
29
26
4
19
20
21
22
11
12
13
6
7
23
24
V I
AMP1
AMP3
AMP2
INPUT
AM
AMP1 IN
AMP2 IN
CLAMP
EMP IN
FM IN
LIM IN
V REF
OUTPUT
AMP1 OUT
AMP2 OUT
EMP OUT
FM OUT
LIM OUT
OTHER
BAL1, BAL2
D. C
DECOUP
HOLD CAP
LIM DE
TEMP COMP
W. C
AMP1 DC
; AM SIGNAL
; VIDEO SIGNAL AMP1
; VIDEO SIGNAL AMP2
; CLAMP PULSE
; EMPHASIS AMP
; FM MODULATOR
; LIMITER
; VOLTAGE REFERENCE
; VIDEO SIGNAL AMP1
; VIDEO SIGNAL AMP2
; EMPHASIS AMP
; FM MODULATOR
; LIMITER
; MODULATOR BALANCE ADJUSTMENT
; DARK CLIP ADJUSTMENT
; DECOUPLING CAPACITOR
; HOLD CAPACITOR
; LIMITER DECOUPLING CAPACITOR
; TEMPERATURE COMPENSATION
; WHITE CLIP ADJUSTMENT
; AMP1 CLAMP DC
+
_
+
_
+
_
+
_
+
_
1
2
3
4
5
6
7
8
IN1
IN2
SWIN1
SWIN2
16
15
14
13
12
11
10
9
SW OUT
CONT1
OUT1
OUT2
CONT2
V
CC
1
GND
GND
V
EE
1
V
CC
2
GND
V
EE
2
2
4
6
7
IN1
IN2
SWIN1
SWIN2
16
13
11
SW OUT
OUT1
OUT2
CONT1 CONT2
14 10
INPUT
CONT1, 2
INT1, 2
SWIN1, 2
OUTPUT
OUT1, 2
SWOUT
: POWER SAVE CONTROL PIN OF DRV. 1 AND DRV. 2
: 1/2-CHANNEL INPUT PIN
: IN1/IN2 PINS SWITCH CONTROL PIN
: OUTPUT PIN OF DRV. 1/2
: OUTPUTS IN1 PIN OR IN2 PIN WHICH HAS BEEN
SELECTED BY SWITCH
IN2
4
IN1
2
X2 SW OUT
16
DRV
OUT1
13
CONT1
14
OUT2
11
CONT2
10
DRV
SWIN2
7
SWIN1
6
+
–
WIDEBAND VIDEO SWITCH
—TOP VIEW—
CXA1451M (SONY)
CXA1451M-TH
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
I
I
O
I
I
O
I
O
O
I
O
O
CHSW CONT
OFF SET2
AOR OUT
ENV(E)
ENV(A)
TH OUT
TH CONT
DO OUT
REF
ENV IN
DET OUT2
DET OUT1
13
14
15
16
17
18
19
20
21
22
23
24
I
I
I
I
—
O
—
—
O
—
O
I
OFF SET1
IN A
EQSEL
IN B
DCPL1
DO EQ
DO V
CC
EQ GND
EQ2(MAIN)OUT
GND
EQ2(SUB)OUT
EQ(SUB)CNT
25
26
27
28
29
30
31
32
33
34
35
36
I
I
I
—
O
I
I
—
I
I
O
I
EQ2(A)IN
EQ2(MAIN)CNT
EQ2(B)IN
EQ2 V
CC
EQ1 OUT
EQ1 CONT
EQ1(B)IN
EQ1V
CC
EQ1(A)IN
GAIN CNT
SWD RF
RF LEVEL
37
38
39
40
41
42
43
44
45
46
47
48
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
O
—
I
—
I
—
I
—
I
—
O
I
AB RF OUT
AMP V
CC
RF(A)IN
GND
RF(B)IN
RF V
CC
RF(C)IN
GND
RF(D)IN
AMP V
CC
CD RF OUT
MODE CONT
I/O SIGNAL I/O SIGNAL I/O SIGNAL I/O SIGNAL
AMP V
CC
GND
RF V
CC
GND
AMP V
CC
36 35 34 33 32 31 30 29 28 27 26 25
GND
1 2 3 4 5 6 7 8 9
10 11 12
EQ1 V
CC
EQ2 V
CC
37
38
39
40
41
42
43
44
45
46
47
48
GND
EQ GND
DO V
CC
PB RF SIGNAL PROCESSOR FOR VTR
—TOP VIEW—
CXA1479Q (SONY)