LG Single "A" Service Manual page 50

8.4 Main PCB Appearance
(1) [DIP SW2] for [SETTING No. OF IDU] OR [LONG
PIPE].
1 TO 3 PIN SWITCHES RECOGNIZE IDU NORMAL-
LY BEING UP AND DOWN ONE BY ONE.
(2) [SW01B] for [AUTO-ADDRESSING]
(3) [LED01G/LED02G] for SIGNALS
Table 1. signals
RED LED GREEN LED
ON ON/OFF
ON/OFF ON
ON/OFF ON/OFF
SLOW
ON/OFF
ON/OFF
* ON / OFF : CONTINUOUS ON AND OFF.
SLOW ON / OFF : AT A PERIOD OF 1.5s
8.5 Auto addressing guide
Addressing work assigns address to each indoor unit.
When firstly installing product of roplacing the indoor unit
PCB.
It needs Auto Addressing for Synchro operation
❈ Work procedure
1) DIP SW2 correctly.( )
2) Turn on main power.
3) Press the SW01B for about 3 seconds within 3minutes
After main power on.( )
4) After step 3), the LED01H(green LED) rapidly flick-
ers.When Addressing work is done, green LED is off,
else LED stops flickering and lights continuously.
5) If you fail to perform the Addressing work, repeat step
2),3).
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
MEANS
UNDERGOING
SUCCEEDED
FAILED
CKECKING
- 49 -
Part 2 Functions & Controls
A
Fig.3 ODU PCB
B
Table2.a DIP SW2 Setting
DIP SW2
ON
1 2 3 4 5
0 0 0 0 0
ON
1 2 3 4 5
1 0 0 0 0
ON
1 2 3 4 5
1 1 0 0 0
ON
1 2 3 4 5
1 1 1 0 0
ON
1 2 3 4 5
0 0 0 1 0
Indoor Unit No.
1(Single)
2(Duo)
3(Trio)
4(Quartet)
Long Pipe
LGE Internal Use Only