Sony RM-B150, Руководство по обслуживанию

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5-5
RM-B150
IC
HCMS-2913 (HP)
GND
3 7
C-MOS DOT MATRIX DISPLAY
—TOP VIEW—
26 25 24 22 21 20 19 18 17 15 14
10
V
DD
GND
V
DD
V
DD
0 1 2 3 4 5 6 7
DATA OUT OSC
RESET
BLANK
CE
CLOCK OSC SEL RS DATA IN
INPUT
BLANK
CE
CLOCK
DATA IN
OSC
OSC SEL
RESET
RS
: BRIGHT CONTROL
: CHIP ENABLE
: CLOCK
: SERIAL DATA
: OSCILLATOR
: OSC SELECT
: CONTROL REGISTER RESET
: REGISTER SELECT
OUTPUT
DATA OUT : SERIAL DATA
L
DI
DO
40-BIT
S.R.
DI
DO
40-BIT
S.R.
DI
DO
40-BIT
S.R.
DI
DO
40-BIT
S.R.
ANODE CURRENT SOURCES
CURRENT
REFERENCE
PWM BRIGHT
CONTROL
CATHODE
FIELD DRIVERS
3:8 DECODER
CHAR 0 CHAR 1 CHAR 2 CHAR 3
COLUMN 0
0
COLUMN 19
19
ROW 7
ROW 1
DOT
REGISTER
BIT 159
DOT
REGISTER
AND
LATCHES
L
H
DATA
OUT
CONTROL
REGISTER
DATA IN
CLR
REFRESH
CONTROL
RST
H
D Q
SER/PAR
MODE
RS (LATCHED)
DATA OUT
26
H
L
H
L
H
L
OSCILLATOR
+ B
PRESCALE
VALUE
RS
(LATCHED)
OSC
25
RESET
24
RS
15
CLOCK
17
CE
18
DATA IN
14
BLANK
19
OSC SEL
21
L H
D0
D0
BLOCK1
BLOCK2 (SAME AS BLOCK1)
DI
CK
CE
RS
RST
OSC
SEL
BL
RST
DI
CK
CE
RS
OSC
SEL
BL