- 21 -
No power
Normal Operation
Check VCC3.3VSB and
U1202.
No
Yes
Yes
6. POWER PART(MAIN BOARD) (RX)
Check R1204, CB1204,
U1201 and U1202
No
Replace Q1901
No
Yes
Check J1201 and power
board.
No
Yes
Check U1905, U1904 and
Q1905
No
Yes
Check blue LEDs.
ON or not?
Check the
voltage of pin No. 1 on
Q1902.
3.3V or not ?
Check the
voltage of pin No.
5,6,7and 8 on Q1901.
3.3V or not ?
Check the
voltage of pin No. 4,5
and 6 on J1201.
5V or not ?
Check the
voltage of CP1905.
1.2V or not ?
Содержание 15LW1R
Страница 25: ... 25 BLOCK DIAGRAM RX ...
Страница 31: ... 31 EXPLODED VIEW 010 020 110 060 030 200 210 180 190 070 040 220 100 120 130 050 080 090 120 140 150 160 170 ...
Страница 33: ... 33 EXPLODED VIEW 010 020 030 040 050 060 070 080 ...
Страница 57: ...Jan 2005 Printed in Korea P NO 3828TSL106B ...