Sony BVP-900P Maintenance Manual page 138

IC
CXK58257CTM-70LL (SONY)FLAT PACKAGE
LC35256DT-70-TLM (SANYO)FLAT PACKAGE
C-MOS 256K (32768 x 8)-BIT STATIC RAM
—TOP VIEW—
OE
22
IN
A11 23
IN
A9 24
IN
A8 25
IN
A13 26
IN
WE
27
IN
V
DD
28
+5V
A14 1
IN
A12 2
IN
A7 3
IN
A6 4
IN
A5 5
IN
A4 6
IN
A3 7
IN
10
A0
9
A1
8
A2
7 11
A3 I/O1
6 12
A4 I/O2
5 13
A5 I/O3
4 15
A6 I/O4
3 16
A7 I/O5
25 17
A8 I/O6
24 18
A9 I/O7
21 19
A10 I/O8
23
A11
2
A12
26
A13
1
A14
OE WE CE
22 27 20
HD151015T (HITACHI)FLAT PACKAGE
HD151015TEL
C-MOS 9-BIT LEVEL SHIFTER/TRANSCEIVER WITH 3-STATE OUTPUTS
—TOP VIEW—
V A V B
DD DD
1 24
(+2 V to +6 V) (+2 V to +6 V)
DIR 2 23 EN
IN
A0 3 22 B0
A1 4 21 B1
A2 5 20 B2
A3 6 19 B3
A4 7 18 B4
A5 8 17 B5
A6 9 16 B6
A7 10 15 B7
A8 11 14 B8
12 GND GND 13
A0 A1 A2
3 4 5
23
EN
2
DIR
22 21 20
B0 B1 B2
2-12
A0 - A14 ; ADDRESS INPUTS
CE ; CHIP ENABLE INPUT
I/O1 - I/O8 ; DATA INPUTS/OUTPUTS
OE ; OUTPUT ENABLE INPUT
WE ; WRITE ENABLE INPUT
CE OE WE MODE I/O TERMINAL
1 X X NOT SELECT HIGH IMPEDANCE
0 1 1 OUTPUT DISABLE HIGH IMPEDANCE
0 0 1 READ OUTPUT DATA
X
0 0 WRITE INPUT DATA
0 ; LOW LEVEL
1 ; HIGH LEVEL
X
; DON'T CARE
3 22
4 21
5 20
IN 6 19
7 18
A B
8 17
9 16
10 15
11 14
DIR EN
2 23
EN DIR OPERATION
0 0 B to A
0 1 A to B
1 X HI-Z
0 ; LOW LEVEL
1 ; HIGH LEVEL
X ; DON'T CARE
HI-Z ; HIGH IMPEDANCE
A3 A4 A5 A6 A7 A8
6 7 8 9 10 11
19 18 17 16 15 14
B3 B4 B5 B6 B7 B8
1
A14
21 A10
IN
26
A13
2
A12
CE
20
IN
23
A11
24
BUFFER
A9
19 I/O8
25
A8
3
A7
18 I/O7
4
A6
5
A5
17 I/O6
16 I/O5
21
A10
15 I/O4
6
A4
7
A3
14 BUFFER
GND
8
A2
9
A1
13 I/O3
10
A0
12 I/O2
11 I/O1
22
OE
BUFFER
10 A0
IN 27
WE
9 A1
IN
20
CE
8 A2
IN
LA1140 (SANYO)
FMIF SYSTEM (QUADRATURE DETECTOR) FOR CAR RADIO
—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
ROW
DECODER
MEMORY
MATRIX
512 x 512
I/O GATE
I/O
COLUMN
BUFFER
DECODER
V
DD
GND (+8V)
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
19
I/O8
18
I/O7
17
I/O6
16
I/O5
15
I/O4
13
I/O3
12
I/O2
11
I/O1
7 AFC
8
AF OUT
MUTE
5
ATT
ADJ.
BVP-900
BVP-900P