Sony BVP-550, Maintenance Manual

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6-12
IC
BVP-550
LA1140(SANYO)
LM339NS(TI)FLAT PACKAGE
LM339PW(TI)FLAT PACKAGE–
LM358PS(TI)FLAT PACKAGE
UPC358G2(NEC)FLAT PACKAGE
LM393PS(TI)FLAT PACKAGE
UPC393G2(NEC)FLAT PACKAGE
LM4040BIM3X(NS)
M27V201-200L6(SGS)CHIP CARRIER
+
–
+
1 2 3 4 5 6 7
14 13 12 11 10 9 8
–
+
–
+
–
QUAD COMPARATORS
—TOP VIEW—
GND
V
CC
(+5V)
DUAL OPERATIONAL AMPLIFIERS
— TOP VIEW —
1
2
3
4
8
7
6
5 GND
V
CC
(+3 V to +30 V)
– +
+ –
DUAL VOLTAGE COMPARATORS
—TOP VIEW—
GND
V
CC
(+2 to +36V)
1 2 3 4
5 6 7 8
+
+
–
–
C-MOS 2M (256
×
8) -BIT UV ERASABLE PROM AND OTP ROM
— TOP VIEW —
A0 - A17
Q0 - Q7
E
G
P
V
PP
; ADDRESS INPUTS
; DATA OUTPUTS
; CHIP ENABLE INPUT
; OUTPUT ENABLE INPUT
; PROGRAM INPUT
; PROGRAM SUPPLY (12.75 V)
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
A7
IN
A6
IN
A5
IN
A4
IN
A3
IN
A2
IN
A1
IN
A0
IN
Q0
OUT
A14
IN
A13
IN
A8
IN
A9
IN
A11
IN
G
IN
A10
IN
E
IN
Q7
OUT
READ
OUTPUT DISABLE
PROGRAM
VERIFY
PROGRAM INHIBIT
STANDBY
ELECTRONIC SIGNATURE
22
E
MODE E
0
0
0
0
1
1
0
G
0
1
1
0
X
X
0
E
X
X
1
X
X
1
E
X
X
X
X
X
X
V
ID
E
X
X
V
PP
V
PP
V
PP
X
V
DD
Q0 -Q7
DATA OUT
HI-Z
DATA IN
DATA OUT
HI-Z
HI-Z
CODES
0
1
X
V
ID
HI-Z
; INPUT LOW VOLTAGE
; INPUT HIGH VOLTAGE
; DON'T CARE
; 12 V ± 0.5 V
; HIGH IMPEDANCE
4 3 2 1
32 31 30
V
PP
A12
IN
A15
IN
A16
IN
P
IN
A17
IN
V
DD
(+3.2 V to +5.5 V)
GND
14 15 16 17 18 19 20
Q1
OUT
Q2
OUT
Q3
OUT
Q4
OUT
Q5
OUT
Q6
OUT
12
11
10
9
8
7
6
5
27
26
23
25
4
28
29
3
2
30
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
24
G
31
P
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
13
14
15
17
18
19
20
21
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
— TOP VIEW —
2
1
3
NC
IF AMP, LIMITTER, DETECTOR, MUTING, + FM CS
— PRINTED SIDE VIEW —
V
DD
(+8 V)
1
GND
1st IF IN
1
AF OUT
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
GND
AGC
S-MUTER
MUTE
DRIVE
V RET
QUAD
IN
IF
OUT
AF
OUT
AFC
MUTE
IN
MUTE ATT
ADJ
IF
IN
12
V
CC
9
IF OUT
11
QUAD IN
13
V RET
VOLTAGE
REGULATOR
AFC
CLAMP
LEVEL
DEL
2nd 3rd 4th 5th 6th
AGC
DRIVE
LEVEL
DEL
LEVEL
DEL
SIGNAL
LEVEL
INDICATE
QUADRATURE
LIMITER
QUADRATURE
DET
AF
MUTE
AMP
7
AFC
5
MUTE
ATT
ADJ.
MUTE IN
6
MUTE DRIVE
14
S-METER
15
AGC
16
INVERTER
HOLE
DET
DC
LEVEL
DET
MUTE
DRIVE
8