LG OM7560 Service Manual

3-4
ONE POINT REPAIR GUIDE
2. NO BOOTING WHEN POWER ON THE SET
The set doesn’t work when press the power button on the top board or the remote control.
2-1. IC501
2-1-1. Solution
Replace IC501 on MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Check the +12 VA (CN202) and 3.3VA (IC503) in standby mode.
 If there is no 12 VA, check the SMPS and if doesn’t appear 3.3 VA, check IC503.
2) Check +12 VA, +5.1 VA, 3.3 VA, DVCC_5V and DVCC_3.3V when power on the set.
-
If the set doesn’t work regardless of what the KEY1 changes high to low while pressing the power button.
X500 and X501 work normally but, if you can not power on the set, replace the IC501 with a new one
on the main board.
2-1-3. Service hint (Any picture/ Remark)
< MAIN board top view >
< MAIN board bottom view >
X500
X500
(24 MHz)
(24 MHz)
X501
X501
(32.768 kHz)
(32.768 kHz)
KEY1
KEY1
(R518)
(R518)
PWR_CTRL
PWR_CTRL
R559
R559

LG OM7560 Specifications

Power

power consumption networked standby	0.5 W
bus power supply (USB)	5 V 0 500 mA
amplifier output power	1, 000 W

Wireless Specifications

frequency range	2402 to 2480 MHz
output power	10 dBm
minimum distance from body	20 cm

Weight and Dimensions

dimensions	330 mm x 815 mm x 302 mm
net weight	16.8 kg