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TROUBLESHOOTING GUIDE
1. NO POWER
CHECK U801.
CHECK
U801 PIN 1,
U803 PIN 3
VOLTAGE
(5V) ?
NO
NO POWER
(POWER INDICATOR OFF)
CHECK POWER
BOARD, AND FIND
OUT A SHORT POINT
AS OPENING
EACH POWER LINE
CHECK J707
VOLTAGE
PIN5, PIN6 (5V)?
NO
CHECK 5VS LINE
(OPEN CHECK)
CHECK
U802 PIN 3(3V),
U803 PIN 4(2.5V)
VOLTAGE
?
NO
CHECK IIC LINE
CONNECTION
(U501, U502)
CHECK U201 VCC,
XTAL, RESET
IS U201
PIN 42
VOLTAGE REPEATED
AS PULSE
SHAPE ?
NO
YES
YES
YES
NO PROBLEM
NO
CHECK KEY CONTROL
CONNECTOR ROUTINE
Содержание Flatron L1510B
Страница 18: ... 18 4 POWER 기판 부품측 5 POWER 기판 부품측 ...
Страница 19: ... 19 EXPLODED VIEW 3 2 10 a 11 6 5 9 7 1 8 4 b 13 14 15 21 18 16 17 19 12 20 22 ...
Страница 26: ...SCHEMATIC DIAGRAM 26 1 SCALER ...
Страница 27: ... 27 2 MICOM ...
Страница 28: ... 28 3 POWER ...
Страница 29: ... 29 4 CONNECTOR JACKS ...
Страница 30: ... 30 5 KEY PART ...
Страница 31: ...May 2003 P NO 3828TSL083Y Printed in Korea ...