3-34
ONE POINT REPAIR GUIDE
X501
X501
When you turn on your set, it will display “HELLO” on front panel, and it will not boot-up normally.
3-5. X501
3-5-1.
Solution
Replace X501 on main board.
3-5-2. How to troubleshoot (Countermeasure)
1) Please check the soldering status of 27 MHz crystal(X501).
2) Please check the frequency of 27 MHz crystal(X501).
3) If the crystal doesn’t oscillate, replace X501.
4) After changing it, if the set is still not booting:
- Check NAND flash IC(IC603) refer to item 3-6.
- Check DDR IC(IC601, IC602) refer to item 3-7.
- Check MT8560 IC(IC501) refer to item 3-8.
3-5-3. Service hint (Any picture / Remark)
< Main board top view >
Содержание BPM54
Страница 63: ...3 50 WAVEFORMS OF MAJOR CHECK POINT 1 1 SYSTEM PART 1 IC501 MT8560 X TAL 27 MHz 1 ...
Страница 64: ...3 51 2 SYSTEM PART 2 SYSTEM MEMORY IC601 BA0 2 IC601 WE 3 IC601 CAS 4 IC601 CK 5 2 3 5 4 ...
Страница 65: ...3 52 3 HDMI PART H_SDA 6 H_SCL 7 HDMI_CLK_N 8 HDMI_0_N 9 9 8 7 6 ...
Страница 69: ...3 56 MEMO ...
Страница 77: ...3 72 3 71 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 79: ...3 76 3 75 MEMO MEMO ...
Страница 91: ...4 12 MEMO ...