8-2 PCB FUNCTION
8-2-1 Power Circuit
The secondary part of the TRANSFORMER is composed of the power supply for the display, the BLDC FAN Motor drive
(15.5 V), the relay drive (12 Vdc) and the MICOM and IC (5 Vdc).
The voltage for each part is as follows:
VA1 is a part for preventing over voltage and noise. When 385V or higher power is applied, the inside elements are short-
circuited and broken, resulting in blowout of the fuse in order to protect the elements of the secondary part of the
TRANSFORMER.
PART
VA 1
CE 3
CE 4
CE 5
VOLTAGE
115 Vac
12 Vdc
15.5 Vdc
5 V
- 26 -
6.8
100
Содержание LRFD22850ST
Страница 10: ...5 CIRCUIT DIAGRAM 10 5 CIRCUIT DIAGRAM 10 ...
Страница 37: ...8 5 MAIN PWB ASSEMBLY AND PARTS LIST 8 5 1 Main PWB Assembly 37 ...
Страница 39: ...8 5 3 PWB Assembly Display And Parts List 39 ...
Страница 40: ... 40 ...
Страница 41: ...8 5 4 Circuit Diagram of Display 41 ...
Страница 55: ...P No 3828JL8077A May 20 2005 ...