Sanyo DC-DVD888 Service Manual page 58

IC BLOCK DIAGRAM & DESCRIPTION
IC231 LA1844ML(AM/FM-ZF/MPX)
24 23 22 21 20
ALC
AM AM
AM
OSC MIX RF.AMP
BUFF
AGC
AM
IF
LEVEL
AM/FM
DET
IF
COMP
S-CURVE
BUFF
TUNING
FM
FM DRIVE
IF
DET
REG GND
1 2 3 4 5
IC201 T224162B(DRAM)
WE 15
CASL
31
30
CASH
NO.2 CLOCK
GENERATOR
COLUMN
ADDRESS
9
BUFFER
A0 18
REFRESH
A1 19
CONTROLLER
A2 20
A3 21
A4 24
REFRESH
A5 25
COUNTER
A6
26
A7 9
27
A8 28
ROW
9 ADDRESS
BUFFER(9)
NO.1 CLOCK
RAS 16
GENERATOR
TSOP44
V V
CC 1 44 SS
I/O1 2 43 I/O16
I/O2 3 42 I/O15
I/O3 I/O14
4 41
I/O4 I/O13
5 40
V 6 39 V SS
CC
I/O5 7 38 I/O12
I/O6 8 37 I/O11
I/O7 9 36 I/O10
I/O8 I/O9
10 35
NC 13 32 NC
NC 14 31 CASL
15 30
WE CASH
RAS 16 29
OE
NC 17 28 A8
A0 18 27 A7
A1 19 26 A6
A2 20 25 A5
A3 21 24 A4
V
V CC 22 23 SS
Top view
19 18 17 16 15 14 13
PILOT
DECODER
CANCEL
ANTI-BIRDIE
P-DET
AM STEREO
DET SW
VCO FF FF FF PILOT
304kHz 38k 19k 19k
2 DET
VCC
6 7 8 9 10 11 12
CONTROL
DATA-IN BUFFER
LOGIC
2~5 I/O1~I/O4
7~10 I/O7~I/O8
16
35~38 I/O9~I/O12
40~43 I/O13~I/O16
DATA-OUT
BUFFER
COLUMN
9 29 OE
DECODER
16
512
8 8
SENSE AMPLIFIERS
VO GATING
512x16
512x512x16
512
9
MEMORY
ARRAY
6 V
CC
39 V
SS
PIN NO. SYM. TYPE DESCRIPTION
16~19,22~26 A0~A8 Input Address Input
14 RAS Input Row Address Strobe
28 CASH Input Column Address Stlobe /Upper Byte Control
29 CASL Input Column Address Stlobe /Lower Byte Control
13 WE Input Write Enable
27 OE Input Output Enable
2~5,6~10,31~34,36~39 I/O1-I/O16 Input/Output Data Input /Output
1,6,20 V Supply Power, 5V
CC
21,35,40 V Ground Ground
SS
11,12,15,30 NC - No Connec
FL601 VACUUM FLUORESCENT DISPLAY
39
P I N C O N N E C T I O N
PIN NO.
39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
CONNECTION F2 F2 NP NP 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G NX NX NX NX NX P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12P13P14 P15 P16 NP NP F1 F1
NOTE 1) F1,F2 ------ Filament
2) NP ---------- No pin
3) NX ---------- No extent pin
4) DL ---------- Datum Line
5) 1G~10G --- Grid
1G 2G 3G
A N O D E C O N N E C T I O N
1G 2G 3G
P1 a a
P2 b b
P3 h h
P4 j j
P5 k k
P6 f f
P7 g g
P8 m m
P9 c c
P10 r r
P11 p p
P12 n n
P13 e e
P14 - d d
P15 - - -
P16 - - Dp
- 64 -
4G 5G 6G 7G 8G 9G
a
h
j
f
b
k
g m
col (5G,7G)
r n
e
c
p
(3G~5G,7G)
Dp
d
(2G~9G)
4G 5G 6G 7G 8G 9G
a a a a a
b b b b b
h h h h h
j j j j j
k k k k k
f f f f f
g g g g g
m m m m m
c c c c c
r r r r r
p p p p p
n n n n n
e e e e e
d d d d d
- col - col -
Dp Dp - Dp -
1
10G
10G
a
b
h
j
k
f
g
m
c
r
p
n
e
d
- -
-
-