Service manual

57
8575
8575
A N/B Maintenance
A N/B Maintenance
Charging current adjustTOOOTCharge-I_CTR44P76/AN6/DA0
Backlight inverter brightness adjustTOOOTBL ADJ45P77/AN7/DA1
TIIITVCC CORE43P75/AN5
Battery thermister temperatureTIIITBAT TEMP243P75/AN5
Battery thermister temperatureTIIITBAT TEMP142P74/AN4
To differential 3S3P lithium ion
battery and 9S NiMH battery
KeepIIITLI/NIMH#41P73/AN3
TIIIT2.5V41P73/AN3
Monitor system on/off stateTIIIT3V/PWR ok40P72/AN2
Key matrix input 7 need pull high
Battery voltage measure
Key matrix input 6 need pull high
Key matrix input 1 need pull high
TIIITBAT VOLT138P70/AN0
Port 7 TTL input voltage (input high min=2V, input low max=0.8V)
Key matrix input 0 need pull highKeepIIIT↑KEY IN026P60/KEYIN0/FTCI
Battery voltage measure
Key matrix input 5 need pull high
Key matrix input 4 need pull high
Key matrix input 3 need pull high
Key matrix input 2 need pull high
Function
T
T
Keep
Keep
Keep
Keep
Keep
Keep
Keep H
STANDBY
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
ON
I
I
I
I
I
I
I
I
I
After
RESET/OFF
T
T
T↑
T↑
T↑
T↑
T↑
T↑
T↑
During
RESET
I_LIMIT
BAT VOLT2
KEY IN7
KEY IN6
KEY IN5
KEY IN4
KEY IN3
KEY IN2
KEY IN1
H8 Pin
Definitions
39
39
35
34
33
32
29
28
27
Pin
P71/AN1
P71/AN1
P67/KEYIN7/IRQ7
P66/KEYIN6/IRQ6
P65/KEYIN5/FTID
P64/KEYIN4/FTIC
P63/KEYIN3/FTIB
P62/KEYIN2/FTIA
P61/KEYIN1/FTOA
Port 6 Schmitt trigger input voltage (min=1.0V max=3.5V)
Name
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