5: Testing and Troubleshooting
5-8
TW7201I-MS
Table 5-4 Front Panel Processor J4 Pin Assignments
Pin
Signal
Description
1
SYNC
LCD sync pulse
2
WE\
Write enable (active low)
3
RE\
Read enable (active low)
4
READY
Not used
5
+12V
Heater
6
CS2
Chip select 2
7
CS1
Chip select 1
8
SPITXD
Serial peripheral interface transmit
9
CLKDIS
Not used
10
HEATER SW
Heater switch
11
SENSE 1
Not used
12
CONTRAST
Contrast adjust
Table 5-5 Front Panel Processor J5 Pin Assignments
Pin
Signal
Description
1
SPKR AUD
Speaker audio
2
GND
Chassis ground
Table 5-6 Front Panel Processor J6 Pin Assignments
Pin
Signal
Description
1
C0
Column matrix data
2
C1
Column matrix data
3
C2
Column matrix data
4
C3
Column matrix data
5
C4
Column matrix data
6
C5
Column matrix data
7
C6
Column matrix data
8
C7
Column matrix data
9
R0
Row matrix data
10
R1
Row matrix data
11
R2
Row matrix data
Содержание TW7201I
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Страница 86: ...TW7201I MS Figure 5 4 DHSL Modem Board Schematic Diagram 994184 Rev E 5 25 ...
Страница 99: ...TW7201I MS Figure 5 6 Power Supply Interface Schematic Diagram 994222 Rev D 5 39 ...
Страница 104: ...TW7201I MS TW7201I MS Figure 5 8 Switching Board Schematic Diagram 994149 Rev A 5 45 ...
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