LG MAX221UB Service Manual

2-16
2-2. PIN DESCRIPTION
Pin No. Pin name Description
1 ILM
ILM output pin
ON when CTRL2 = M1, H
8.4 V/ 0.5 A
2 GND GND pin
3 CD
CD output pin
ON when CTRL1 = H
8.0 V/ 1.3 A
4 CTRL1
CTRL1 input pin
Three value input
5 AUDIO
AUDIO output pin
ON when CTRL1 = M, H
8.4 V/ 0.5 A
6 CTRL2
CTRL2 input pin
Four-value input
7 DSP
DSP output pin
ON when CTRL1 = M, H
3.3 V/ 0.3 A
8 CTRL3
CTRL3 input pin
Two-value input
9 FB
USB-FB pin
1.26 V
10 USBGT
Pch-FET gate connect pin
12.0 V
11 EXT
EXT output pin ON
when CTRL2 = M2, H
V
CC
-0.5 V/ 500 mA
12 RSNS
USB current detection resistance connection pin
14.3 V
13 V
DD
V
DD
output pin
5.7 V/ 0.3 A
14 V
CC
1V
DD
power supply pin
15 V
CC
Power supply pin

LG MAX221UB Specifications

General

Brand	LG
Model	MAX221UB
Category	Receiver
Language	English