Timing Chart - Panasonic KX-FT21BX Service Manual

MAIN BOARD
+24V
R74
R75
Q8
THON 170
GATE ARRAY
(IC1)
R70
THLAT
167
R71
163
THDAT
R69
THCLK 166
STB1 159
160
STB2
C77
AIN2 207
L18
C74 R73
PRINT DATA
CN4
THDAT
10
7 THCLK
2 THLAT
3 STB1
9 STB2
Circuit Diagram
Q13
1
6
TM
CLOCK
11 7
2 8
THLAT GND
10 9
THDAT STROBE2
7
10
THCLK SI
R67 3 11
+24V
9
R68
1 +24V
+5V
5
LATCH
2
3
STROBE1
4
C75
L3
6 4 GND
8 5
VDD
R66
CN4

Timing Chart

3.0µsec
3.0µsec
1728 pcs
3.0µsec
about 3.2 msec (at 25¡C)
3.0µsec
about 4.0 msec (at 25¡C)
THERMAL HEAD
192DOT
NO.1
THERMISTOR
LATCH REGISTER
SHIFT REGISTER
+24V
NEXT LINE PRINT DATA
320 pcs
TEMPERATURE OF THERMAL HEAD
TEMPERATURE OF THERMAL HEAD
9.216 msec (COPY)
- 123 -
KX-FT21LA
192DOT
NO.2
LATCH REGISTER
SHIFT REGISTER
(3.0µsecX1728)
5.184msec
1728 pcs
NO.19