7-2 PCB FUNCTION
7-2-1 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.
- 20 -
PART
VA 1
CE 3
CE 4
CE 5
VOLTAGE
115 Vac
12 Vdc
15.5 Vdc
5 V
Summary of Contents for LRBN2051 Series
Page 9: ...BETTER GOOD 5 CIRCUIT DIAGRAM 9 3854JK1004D ...
Page 31: ...7 5 MAIN PWB ASSEMBLY AND PARTS LIST 7 5 1 Main PWB Assembly 31 ...
Page 32: ...7 5 2 Replacement Parts List 32 ...
Page 33: ...7 5 3 PWB Assembly Display And Parts List 33 ...
Page 34: ...7 6 PWB DIAGRAM 7 6 1 PWB Main Assembly 34 ...
Page 35: ... 35 ...
Page 36: ......
