Sony BVP-550 Maintenance Manual page 594

IC
LA1140(SANYO)
IF AMP, LIMITTER, DETECTOR, MUTING, + FM CS
— PRINTED SIDE VIEW —
GND
1 2 3 4 5 6 7 8
V
CC
12
VOLTAGE
REGULATOR
1
IF IN 1st 2nd 3rd 4th 5th
LEVEL LEVEL LEVEL
DEL DEL DEL
SIGNAL
AGC
LEVEL
DRIVE
INDICATE
16 15
AGC S-METER
LM339NS(TI)FLAT PACKAGE
LM339PW(TI)FLAT PACKAGE–
QUAD COMPARATORS
—TOP VIEW—
GND
14 13 12 11 10 9 8
+
–
+
–
+
–
+
–
1 2 3 4 5 6 7
V
CC
(+5V)
LM358PS(TI)FLAT PACKAGE
UPC358G2(NEC)FLAT PACKAGE
DUAL OPERATIONAL AMPLIFIERS
— TOP VIEW —
V
CC
1 8
(+3 V to +30 V)
2 7
– +
3 6
+ –
4 GND 5
6-12
V
DD
GND (+8 V)
9 10 11 12 13 14 15 16
IF OUT QUAD IN V RET
9 11 13
AFC
CLAMP
QUADRATURE QUADRATURE
6th
LIMITER DET
AF
MUTE
AMP
DC
HOLE
INVERTER LEVEL
DET
DET
MUTE
DRIVE
14 6
MUTE DRIVE MUTE IN
LM393PS(TI)FLAT PACKAGE
UPC393G2(NEC)FLAT PACKAGE
DUAL VOLTAGE COMPARATORS
—TOP VIEW—
8 7 6 5
V
CC
(+2 to +36V)
–
–
GND
1 4
2 3
7
AFC
LM4040BIM3X(NS)
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
8
AF OUT
— TOP VIEW —
1
NC
MUTE
5
2 3
ATT
ADJ.
M27V201-200L6(SGS)CHIP CARRIER
C-MOS 2M (256×8) -BIT UV ERASABLE PROM AND OTP ROM
— TOP VIEW —
A7 5
IN
A6 6
IN
A5 7
IN
A4 8
IN
A3 9
IN
A2 10
IN
A1 11
IN
12
A0
IN
Q0 13
OUT
A0 - A17 ; ADDRESS INPUTS
Q0 - Q7 ; DATA OUTPUTS
E ; CHIP ENABLE INPUT
G ; OUTPUT ENABLE INPUT
P ; PROGRAM INPUT
V ; PROGRAM SUPPLY (12.75 V)
PP
MODE
READ
OUTPUT DISABLE
PROGRAM
VERIFY
PROGRAM INHIBIT
STANDBY
ELECTRONIC SIGNATURE
0 ; INPUT LOW VOLTAGE
1 ; INPUT HIGH VOLTAGE
X ; DON'T CARE
V ; 12 V ± 0.5 V
ID
HI-Z ; HIGH IMPEDANCE
12
A0
11
A1
10
A2
9
A3
29 A14
IN
8
A4
7
A5
28 A13
IN
6
A6
5
A7
27 A8
IN
27
A8
26
A9
26 A9
IN
23
A10
25
A11
25 A11
IN
4
A12
28
A13
24 G
IN
29
A14
3
A15
23 A10
IN
2
A16
30
A17
22
E
IN
E G
21 Q7
OUT
22 24
E G E E E Q0 -Q7
0 0 X X X DATA OUT
0 1 X X X HI-Z
0 1 X V DATA IN
PP
0 0 1 X V DATA OUT
PP
1 X X X V HI-Z
PP
1 X X X X HI-Z
0 0 1 V V CODES
ID DD
13
Q0
14
Q1
15
Q2
17
Q3
18
Q4
19
Q5
20
Q6
21
Q7
P
31
BVP-550