Appendix: Schematics
Schematics
Unit schematics
This illustration shows the PCB with unit connections :
PE
3: Input 2
4: GND
4
3
2
1
J1
J22
PE
F1
T2A
J8
J2 J4 J6 J7
J21
ByPass
AC
Heater
240VAC
230VAC
1: L
1: L
1: L
1: L
2: N
2: N
2: N
2: N
4: -
6: Gnd
6
1
ANT
BT1
-
+
J23
SW2
VOC
A
B
1: Power
2: SCK
3: SDA
4: GND
4: GND
4: GND
4: GND
Fig. 29
LAN
J9
a:S1 / b:S3
a:S2 / b:S4
a:S3 / b:S1
a:S4 / b:S2
J24
J5
PE
USB
RH%
1: Power
PE
2: SCK
3: SDA
4: GND
35