GR
UNDIG Ser
vice
Chassis SE
2 -
Scaler (PCB Index R-4)
To Keypad Board
LED_R-GPIO1
IRIN
SAR0
SAR1
R480
1K
R462
1K
R460
10K
1
2
3
4
5
6
7
8
S401
Keyboard
#LED0
#LED1
R481
(0R blue)
R461
4.7 K
R482
4.7 K
C409
100pF
C410
100pF
C407
100pF
R466
470R
+5V_ST
LED_R-GPIO1 - for Led Blink
One color LED
AMBILIGHT/2ND LED for 2nd LED
LED_R-GPIO1 - for LED 1
Two color LED ( CA )
Prevent both active from SW
or
1
3
2
T404
2N7002
R479
NC
R478
NC
R477
0R
I 2C-SCL
I 2C-SDA
C468
100pF
C467
100pF
C470
100pF
C469
100pF
L410
60R/ 100MHz
L412
60R/ 100MHz
L409
60R/ 100MHz
L411
60R/ 100MHz
L408
60R/ 100MHz
Power-ON/OFF
Hi: Off
Lo: On
R484
(1k)
VCC3.3V-
ST
R485
(100R)
Optomosfet
R491 NC/ 0R
AMBI LI GHT/ 2ND LED
C472
10uF
Ambient light sensor option.
Cannot be used with
R486
0R
"TB" option. NC when TB
R496
0R
AMBILIGHT
A
m
bi
en
t
lig
ht
s
en
so
r
op
tio
n.
NC
when
Ambient
light
sensor
or
VCC3.3V-ST
R488
(1K)
R489
(47K)
AMBILIGHT
2n
d
LE
D
i
s
us
ed
.
R490
(0R)
bicolor LED option.
Two color LED ( 2 pin Reverse conn. )
LED_R-GPIO1 - for LED 1
AMBILIGHT/2ND LED for 2nd LED
2nd LED option
R498
NC
Optomosfet
LED_R
R142
(0R)
R139
0R
IRIN
IROUT
R140
0R
R141
0R
SAR0
SAR1
SAR_0
SAR_1
R467
(0R)
R470
NC
#LED0
AMBI LI GHT/ 2ND LED
VCC3.3V-ST
R469
0R
R468
NC/ 0R
Vbat
(0,1W option)
(TB+0,1W option)
(0,1W not used)
IRIN
System-RST
SAR_1
SAR_0
LED_R
IROUT
SAR1
SAR0
System-RST
SAR1
SAR_1
SAR_0
SAR0
IRIN
IROUT
LED_R
2
1
6
T405B
BC847BDW1T1_A
5
4
3
T405A
BC847BDW1T1_A
Vorabversion
Preliminary Version
