EasyManuals Logo

LG NS9550F Service Manual

LG NS9550F
85 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #25 background imageLoading...
Page #25 background image
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 front board or the remote
control.
2-1. MICOM (IC501)
2-1-1. Solution
Please check and replace IC501 on MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Check the 5.6 VA (CN106) and DVCC 3.3 V(IC505) in standby mode.
If there is no 5.6 VA, check the SMPS and if doesn’t appear 3.3 V, check IC505.
2) Check 5.6 VA, +12 V, FL+, FL-, an +39 V when power on the set.
- If the set doesn’t work regardless of what the KEY2 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 >
KEY1
(pin16)
X500
(24 MHz)
X501
(32.768 KHz)
PW R_CTRL
(R5F7)

Table of Contents

Other manuals for LG NS9550F

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the LG NS9550F and is the answer not in the manual?

LG NS9550F Specifications

General IconGeneral
BrandLG
ModelNS9550F
CategoryStereo System
LanguageEnglish

Related product manuals