Troubleshooting Guide - LG FLATRON L4200A Service Manual
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Also See for FLATRON L4200A:
- User manual (45 pages) ,
- User manual (44 pages) ,
- User manual (50 pages)
Table of Contents
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NO POWER
(POWER INDICATOR OFF)
CHECK J602
VOLTAGE
(18V, 12V, 5V)?
YES
CHECK
J601 VOLTAGE
(24V, 12V) ?
YES
CHECK
J609 VOLTAGE
(5V, 9V, 24V) ?
YES
CHECK
X401
(14.318MHz) ?
YES
CHECK
J602
(SUB POWER) ?
YES
CHECK KEY
CONTROL BOARD
TROUBLESHOOTING GUIDE
1. NO POWER
NO
NO
NO
NO
NO
- 21 -
CHECK POWER BOARD
CHECK POWER BOARD
CHECK POWER BOARD
CHECK X401
CHECK MICOM(U402)
SUB POWER PORT(R419)
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