2. VFD DOES NOT DISPLAY OR NO BOOTING WHEN YOU TURN ON THE
POWER BUTTON.
VFD does not display or no booting problem occurs when you power on the BD
player.
2-1. Solution
replace ic301 on main board.
2-2. How to troubleshoot (Countermeasure)
1) Please check 5.3va of c213 (cn201n, cn201S).
2) check the 1.2v, 1.5v, 3.3v, 5v
if 1.2v, 1.5v, 3.3v, 5v voltage doesn’t come out,
check P_con_5.3v (ic301 pin13), P_con_5.3l(ic301 pin15) and PWr_ctrl(ic301 pin14).
--> if you figure out those power control doesn’t come out any signal level (or voltage),
please replace ic301 of main board.
3) if X301 does not oscillate as the frequence of 12Mhz,
first, check X301 and then replace ic301.
4) after changing it, if the set is still not booting, check MPeG ic(ic500).
after changing it, if vFd is not displayed, check SMPS power (-29va, Fd+, Fd-).
2-3. Service hint (Any picture / Remark)
< Main board top view >
X301
IC301
3-70
2010
ONE POINT REPAIR INSTRUCTION
Summary of Contents for BD550
Page 11: ...MEMO 1 10 2010 ...
Page 93: ...1 System Part 1 7630 XTAL 27MHz 1 1 3 78 2010 WAVEFORMS ...
Page 97: ...5 AUDIO PART S PDIF 7630_AUDIO_SPDIF 14 14 17 11 12 3 82 2010 ...
Page 98: ...6 HDMI PART H_SDA 15 H_SCL 16 HDMI_CLK_N 17 HDMI_0_N 18 4 15 17 18 16 19 20 3 83 2010 ...
Page 99: ...7 MICOM I F PART 17 18 19 20 Tx0 19 Rx0 20 3 84 2010 ...
Page 107: ...3 92 2010 MEMO ...
Page 125: ...3 127 3 128 MEMO MEMO ...
Page 137: ...4 12 2010 2 IC704 R2A30209SP W02Z SPINDLE MOTOR AND 6CH ACTUATOR DRIVER 2 1 Block Diagram ...
Page 141: ...4 16 2010 MEMO ...