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Flatron L1932P
Service manual
Troubleshooting Guide - LG Flatron L1932P Service Manual
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:
User manual
(25 pages)
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User manual
(24 pages)
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Troubleshooting
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NO POWER
(POWER INDICATOR OFF)
CHECK J806
VOLTAGE
PIN5, PIN6 (5V)?
CHECK
U502 PIN 8 VOLTAGE
CHECK KEY CONTROL
CONNECTOR ROUTINE
IS U201
PIN106 (3.3V)
VOLTAGE ?
CHECK U201 PIN 56
1
CHECK U201
Waveforms
1
U201-#56
TROUBLESHOOTING GUIDE
1. NO POWER
YES
(5V) ?
YES
YES
PULSE
YES
NO
NO
NO
NO
- 14 -
CHECK POWER BOARD,
AND FIND OUT A SHORT
POINT AS OPENING
EACH POWER LINE
CHECK 5VS LINE
(OPEN CHECK)
NO PROBLEM
CHECK 3.3V LINE
CHECK X-TAL
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