38
TK-790/
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B
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Display Unit (X54-3190-20) : KCH-10
Ref. No.
Use/Function
Operation/Condition
IC1
AVR
Input : SB
Output : 5V
IC2
Reset
IC3
EEPROM
IC4
CPU/LCD driver
Q1
9V AVR
Q3
DC switch
Dimmer “Hi”, “Low” : ON
Q4
DC switch
,
key lighting : ON
Q5
DC switch
Dimmer “Hi”, “Mid” : ON
Q6
DC switch
Dimmer “Hi”, “Low” : ON
Q7
DC switch
Dimmer “Hi”, “Mid” : ON
Q9
DC switch
“PF1”, “PF2”, “PF3” key
lighting : ON
Q11
DC switch
“PF4”, “PF5” key lighting : ON
Q12,13
TRD switch
Q14,15
DC switch
On when output port on
D1,2
Surge absorption
D5
Voltage reference
D6~11
LCD backlight
D12
BUSY LED
D13
TX LED
D16,17
Surge absorption
D19~21
Surge absorption
D24
DC switch
Key lighting : ON
D25
DC switch
DESCRIPTION OF COMPONENTS
Display Unit (X54-3200-20) : KCH-11
Ref. No.
Use/Function
Operation/Condition
IC1
AVR
Input : SB
Output : 5V
IC2
Reset
IC3
EEPROM
IC4
CPU
Q1
9V AVR
Q2
DC switch
,
key lighting : ON
Q3
DC switch
Dimmer “Hi”, “Low” : ON
Q4
DC switch
“MON”, “PF6”, “PF7” key
lighting : ON
Q5
DC switch
“PF1”, “PF2”, “PF3” key
lighting : ON
Q6
DC switch
Dimmer “Hi”, “Mid” : ON
Q7
DC switch
“SCN”, “PF8”, “PF9” key
lighting : ON
Q8
DC switch
“PF4”, “PF5” key lighting : ON
Q9,10
TRD switch
Q14,15
DC switch
On when output port on
D1,2
Surge absorption
D5
Voltage reference
D6
BUSY LED
D7
TX LED
D11,12
Surge absorption
D14~16
Surge absorption
D18
DC switch
Key lighting : ON
D19
DC switch
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Содержание FleetSync TK-790
Страница 77: ...TK 790 B H B TK 790 B H B 77 WIRING ...
Страница 93: ...TK 790 B H B TK 790 B H B BLOCK DIAGRAM 117 ...