Sony BVP-900 Series, Руководство по обслуживанию

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2-18
BVP-900
BVP-900P
IC
COMPOSITE
SYNC
OUT
COMPOSITE
VIDEO
IN
VERTICAL
SYNC
OUT
ODD/EVEN
OUT
RSET
BURST/BACK
OUT
TIMING CHART
COMPOSITE
VIDEO IN
COMPOSITE
SYNC OUT
VERTICAL
SYNC OUT
BURST OUT
ODD/EVEN OUT
GND
( + 5 to + 12V)
V
CC
COMPOSITE
VIDEO
RSET
COMPOSITE
SYNC
VERTICAL
SYNC
ODD/EVEN
BURST/BACK
1
2
3
4
8
7
6
5
1
3
7
5
C
2
6
C
R
VIDEO SYNC SEPARATOR
—TOP VIEW—
LM1881M (NS)FLAT PACKAGE
LM1881MX
LM324NS (TI)FLAT PACKAGE
LM324NS-E05
M51271FP (MITSUBISHI)FLAT PACKAGE
M51958A (MITSUBISHI)FLAT PACKAGE
M51958A-T1
BG PP
BG PW
C
OUT
CS CONT
C
IN
BIAS
ACC F
V REF
APC F
VCXO
OUT
T CONT
VCXO
IN
B-Y
IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15 V
CC ( + 5 V)
SYNC
SLICE
FB
VIDEO
HDP
BLKP
RF REF
KF
R-Y
OUT
B-Y
OUT
FSC
OUT
NTSC/
PAL
R-Y
IN
GND
25
27
26
1
2
5
6
4
7
11
9
10
12
21
22
24
17
23
16
14
8
VIDEO
SLICE
FB
BG PP
BG PW
C IN
BIAS
CS CONT
ACC F
T CONT
APC F
VCXO OUT
VCXO IN
KF
KF REF
HDP
NTSC/
PAL
BLKP
R-Y IN
B-Y IN
V REF
SYNC
C OUT
FSC
R-Y OUT
B-Y OUT
28
3
18
20
19
NTSC/PAL CHROMA DECODER
—TOP VIEW—
SYNC
SEP.
VIDEO
25
BURST GATE
PULSE
BG PP
1
ACC F
7
BG PW
2
ACC
DETECT
SLICE
27
FB
26
FIRST
AMP.
C IN
5
BIAS
6
APC F
9 APC
DEMOD.
CS CONT
4
T CONT
11
4 fsc
VCXO
VCXO IN
12
VCXO OUT
10
BURST
GATE
SECOND
AMP.
TINT
QUARTER
90 d
90 d
180 d
KF
21
KF REF
22
ID KILLER
DETECT
HDP
24 ID
PULSE
COMP.
NTSC/
PAL
17
COMP.
R-Y
DEMOD.
R-Y IN
16
BLKP
23
COMP.
B-Y
DEMOD.
B-Y IN
14
V REF
8
REF.
VOLTAGE
C OUT
3
FSC
18
R-Y OUT
20
B-Y OUT
19
90 d
270 d
SYNC
28
INPUT
ACC F
APC F
BG PP
BG PW
BIAS
BLKP
B-Y
C
CS CONT
HDP
KF
KF REF
NTSC/
PAL
R-Y
SLICE
T CONT
VCXO
VIDEO
V REF
OUTPUT
B-Y
C
FB
FSC
R-Y
SYNC
VCXO
: AUTOMATIC COLOR CONTROL FILTER
: AUTOMATIC PHASE CONTROL FILTER
: BURST GATE PULSE POSITION
: BURST GATE PULSE WIDTH
: CHROMA INPUT BIAS CAPACITY
: BLANKING PULSE
: B-Y SIGNAL
: CHROMA SIGNAL
: COLOR SATURATION CONTROL
: HORIZONTAL DRIVE PULSE
: KILLER FILTER CAPACITY
: KILLER REFERENCE FILTER CAPACITY
: PROCESS SELECT
: R-Y SIGNAL
: SLICE LEVEL INPUT OF SYNC SEPARATION
: TINT CONTROL
: VARIABLE CAPACITOR AND CRYSTAL OSCILLATOR
: VIDEO INPUT FOR SYNC SEPARATION
: REFERENCE VOLTAGE
: B-Y SIGNAL
: CHROMA SIGNAL
: FEEDBACK CAPACITY OF SYNC SEPARATION
: SUB-CARRIER (180 DEGREES)
: R-Y SIGNAL
: SEPARATION SYNC SIGNAL
: VARIABLE CAPACITOR AND CRYSTAL OSCILLATOR
1 2 3 4 5 6 7
8 9 10 11 12
13
14
IN _
_
+
+ V
OUT OUT
OUT OUT
SINGLE
SUPPLY
DUAL
SUPPLIES
+ 3 to + 32V GND
+ 1.5 to + 16V _ 1.5 to _ 16V
IN + IN + IN _
IN
+
IN
_ IN _ IN +
_ V
+
_
_
+
+
_
+ V _ V
QUAD OPERATIONAL AMPLIFIERS
—TOP VIEW—
1
2
3
4
8
7
6
5
IN
V
CC
( + 2V to + 17V)
OUT
CD GND
NC
NC
NC
6
OUT
IN
2
V
CC
5 µA 2.5 µA
5
CD
1.25 V
+
_
+
VOLTAGE DETECT DELAY
—TOP VIEW—