Grundig Toronto 26-7831 T Service Manual page 38

Vorabversion
Preliminary Version
Scaler (PCB Index R-3)
To Z-Touch Board
S403
Optomosfet
16
15
C466
14
13
100n
12
Z_HDMI-CEC
11
10
9 +5V_ST
8
7
6
5
4
3
2
L407
1
TOUCH
L408
R496
0R/NC
Ambient light sensor option.
NC when Ambient light sensor or
2nd LED is used.
S401
8
AMBILIGHT/2nd_LED
7
6
4 L 9 0
5
4 4 L 0 1
4 L 1 1
3
4 L 2 1
2
1
C467 C468 C469 C470
Keyboard
100p 100p 100p 100p
To Keypad Board
Ambient light sensor option.
Cannot be used with Si Tuner option
or bicolor LED option.
R491 NC/0R
AMBILIGHT/2nd_LED
RSSI/AMBILIGHT/2ND LED
C472
10u
VCC3.3V-ST
R484
Optomosfet
NC/1k
R485
Power-ON/OFF
NC/100
Hi: Off
Lo: On
T405
NC/2N7002
6
*
R478
I2C-SCL
R479 * I2C-SDA
5
Vdd_Z-Touch
FB600 Vdd_Z-Touch
FB600
R460 R461
R462
10K 4K7 1K
"Z-power" option.
NC when "Z-power".
R465
100R
IRIN
IR_CYPRESS_IN
#LED0
F B 6 0 0
#LED1
F B 6 0 0
F B 6 0 0 SAR0
Z_STBY
F B 6 0 0
C471
C407 C409
C410
100p 100p 100p
100p
"Z-power" option.
NC when Z-power.
5 6
2nd LED option
VCC3.3V-ST
R489
47K
AMBILIGHT/2nd_LED
R488
R498
1K
*
R490
T406
0R/NC
2N7002
VCC3.3V-ST
One color LED
LED_R-GPIO1 - for Led Blink
+5V_ST
Two color LED ( CA )
LED_R-GPIO1 - for LED 1
R477 R481
R482
0R RSSI/AMBILIGHT/2ND LED for 2nd LED
0R 47K
or
Two color LED ( 2 pin Reverse conn. )
LED_R-GPIO1 - for LED 1
RSSI/AMBILIGHT/2ND LED for 2nd LED
Prevent both active from SW
R466
"Z-power" option. NC when Z-power.
1K
R486
0R/NC
T404 R487
0R/NC
Z_STBY
R480 2N7002
470R
RSSI/AMBILIGHT/2ND LED
LED_R-GPIO1
SAR1