Sony BVP-550, Руководство по обслуживанию

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6-6
IC
BVP-550
IC
BA225F(ROHM)
CA3102M(RCA)FLAT PACKAGE
CLC505AJE(COMLINEAR)FLAT PACKAGE
CXA1165M(SONY)FLAT PACKAGE
CXA1432M(SONY)FLAT PACKAGE
OPERATIONAL AMPLIFIER
— TOP VIEW —
1
2
3
4
8
7
6
5
V–
V+
V
CC
(+5 V)
R
P
V
OUT
V
EE
(–5 V)
NC
NC
+
–
CATV VHF TUNER
— TOP VIEW —
V
CC
(+6.5 V to +9.5 V)
14 13 12 11 10 9 8
1 2 3 4 5 6 7
GND
GND
IF
OUT
RF1
IN
RF2
IN
UIF
IN
MIX1
OUT
MIX2
OUT
REG
OUT
OSC
3
OUT
OSC
2
OUT
OSC
1
OUT TP
OSC
MIX
UIF
AMP
+5 V
REG
12 13 11 10 8
OSC
2
OSC
1 TP
V
CC
(+6.5 V to +9.5 V)
14
3
4
RF1
RF2
6
7
MIX1
MIX2
+
IF
AMP
1
IF
5
UIF
VIDEO SIGNAL CLAMPER
— TOP VIEW —
V
CC
(+5 V)
14 13 12 11 10 9 8
1 2 3 4 5 6 7
V
IN
FV
IN
TP5 V
OUT
SENS
+
V IN E OUT
NC V
EE
(–5 V)
NC NC
E
OUT
CP
IN
PEDE TP12
1
3
9
8
10
2
V OUT
7
FV IN
PEDE
SENS
CP IN
CP IN
E OUT
FV IN
PEDE
SENS
TP5, TP12
V IN
V OUT ; CLAMP PULSE INPUT
; BUFFER AMP OUTPUT
; FLOATING VIDEO SIGNAL INPUT
; CLAMP LEVEL DC INPUT
; CLAMP POINT SIGNAL INPUT
; FOR TEST
; VIDEO SIGNAL INPUT
; VIDEO SIGNAL OUTPUT
1
E. F
V IN
3
FV IN
2
E OUT
7
V OUT E. F
9
PEDE +
8
SENS –
SAMPLE
&
HOLD
MODE
SELECTOR
10
CP IN
1
2
3
4
OUT1
CR1
TRIGGER1
GND
O
T
CR
8
7
6
5
OUT2
CR2
TRIGGER2
V
CC
(+16V)
O
T
CR
2
6
3
5
CR1
CR2
TRG1
TRG2
1
7
OUT1
OUT2
8
VCC
GND
4
-TOP VIEW-
CR TIMER
1
2
3
4
5
6
7
14
13
12
11
10
9
8
SUBSTRATE
HIGH FREQ.DIFFERENTIAL AMPLIFIER
—TOP VIEW—